UNIX TECH CO.,LTD. - SVC Series

SVC Series

詳細請查看附件

Details

Introduction

SVC series Varistors are gapless ceramic surge absorbers of a new type made of metal oxide which is designed to protect various kinds of electronic devices and semiconducting elements from surges.

Features

• High discharge current capability up to 4000 Amps.
• Excellent clamping characteristics.
• Fast response time under 50 nanesesconds.
• Improve Product safety
• UL, CSA, VDE recognized
* special specification like a Automobile, Medical, Military, Aviation should be discuss with our sales representatives

1 Basic Type ZnO Varistor	2 Varistor Nominal Voltage (The first two digit indicate significaticant digits) (The 3rd digit indicate the number of zeros following)	3 Style D : Disk Type Varistor
4 Chip Element Size(Dia) 05 : Ø5mm, 07 : Ø7mm, 10 : Ø10mm, 14 : Ø14mm, 20 :Ø20mm	5 Classification A : High Voltage(82V and above) B : Low Voltage(less then 68V)	6 Packing Style & Lead Variation 7 Lead Spacing & Pitch of Component

Packing Style		Lead Variation		Packing Style		Lead Variation
F	Taping Type Flat Pack	S	Straight Type	B	Bulk	S	Straight Long Type
						W	Kink Short Type
		K	In-Kink Type
						K	Kink Long Type
						L	Kink Short Type
		F	Out-Kink Type
						N	Straight Short Type

Suffix Code

Taping Type			Bulk Type
Code	Lead Spacing(mm)	Pitch of Component(mm)	Code	Lead Spacing(mm)
5	5.0	12.7	5	5.0
7	7.5	15.0	7	7.5
8	7.5	30.0	1	10.0
9	7.5	25.4
1	10.0	30.0

SVC Characteristic Curves

V - Ⅰ Curve

•Small - current region of V -Ⅰcurve	•Temporary power frequency over voltage capability

B Type Withstand discharge impulse current characteristics(Typical)	A Type •Withstand discharge impulse current characteristics(Typical)

Device Type	Chip Element Size	Maximum Ratings					Characteristics
		Applied Voltage		Transient			Nominal Varistor ④ Peak Voltage			Max. Clamping ⑤Voltage @ Test Current(8/20㎲)
		RMS 50/60Hz (25℃ )	DC (25℃ )	Energy ②	Average Power Dissipation	Peak ③ Current (8/20㎲)	Nominal Varistor ④ Peak Voltage
	Dia (mm)	Vacm (Volts)	Vdcm (Volts)	Wtm (Joules)	Ptam (Watts)	Itm (Amps)	Vnom (Volts)	Tolerance		Vc (Volts)	Ip (Amps)
	Dia (mm)	Vacm (Volts)	Vdcm (Volts)	Wtm (Joules)	Ptam (Watts)	Itm (Amps)	Vnom (Volts)	Min.(Volts)	Max.(Volts)	Vc (Volts)	Ip (Amps)
SVC 180D-05B SVC 180D-07B SVC 180D-10B SVC 180D-14B SVC 180D-20B	5 7 10 14 20	11	14	0.3 0.8 1.5 3.5 10.0	0.01 0.02 0.05 0.1 0.2	125 250 500 1000 2000	18	16	20	40 36 36 36 36	1 2.5 5 10 20
SVC 220D-05B SVC 220D-07B SVC 220D-10B SVC 220D-14B SVC 220D-20B	5 7 10 14 20	14	18	0.4 0.9 2.0 4.0 13.0	0.01 0.02 0.05 0.1 0.2	125 250 500 1000 2000	22	20	24	48 43 43 43 43	1 2.5 5 10 20
SVC 270D-05B SVC 270D-07B SVC 270D-10B SVC 270D-14B SVC 270D-20B	5 7 10 14 20	17	22	0.5 1.0 2.5 5.0 15.0	0.01 0.02 0.05 0.1 0.2	125 250 500 1000 2000	27	24	30	60 53 53 54 53	1 2.5 5 10 20
SVC 330D-05B SVC 330D-07B SVC 330D-10B SVC 330D-14B SVC 330D-20B	5 7 10 14 20	20	26	0.6 1.2 3.0 6.0 20.0	0.01 0.02 0.05 0.1 0.2	125 250 500 1000 2000	33	30	36	73 65 65 65 65	1 2.5 5 10 20
SVC 390D-05B SVC 390D-07B SVC 390D-10B SVC 390D-14B SVC 390D-20B	5 7 10 14 20	25	31	0.8 1.5 3.5 7.0 24.0	0.01 0.02 0.05 0.1 0.2	125 250 500 1000 2000	39	35	43	86 77 77 77 77	1 2.5 5 10 20
SVC 470D-05B SVC 470D-07B SVC 470D-10B SVC 470D-14B SVC 470D-20B	5 7 10 14 20	30	38	1.0 1.8 4.5 8.5 30.0	0.01 0.02 0.05 0.1 0.2	125 250 500 1000 2000	47	42	52	104 93 93 93 93	1 2.5 5 10 20
SVC 560D-05B SVC 560D-07B SVC 560D-10B SVC 560D-14B SVC 560D-20B	5 7 10 14 20	35	45	1.0 2.2 5.5 10.5 35.0	0.01 0.02 0.05 0.1 0.2	125 250 500 1000 2000	56	50	62	123 110 110 110 110	1 2.5 5 10 20
SVC 680D-05B SVC 680D-07B SVC 680D-10B SVC 680D-14B SVC 680D-20B	5 7 10 14 20	40	56	1.2 2.5 6.5 12.0 40.0	0.01 0.02 0.05 0.1 0.2	125 250 500 1000 2000	68	61	75	150 135 135 135 135	1 2.5 5 10 20
SVC 820D-05A SVC 820D-07A SVC 820D-10A SVC 820D-14A SVC 820D-20A	5 7 10 14 20	50	65	1.7 3.5 8.0 14.0 27.0	0.1 0.25 0.4 0.6 1.0	400 1200 2500 4500 6500	82	74	90	145 135 135 135 135	5 10 25 50 100
SVC 101D-05A SVC 101D-07A SVC 101D-10A SVC 101D-14A SVC 101D-20A	5 7 10 14 20	60	85	2.0 4.0 10.0 18.0 30.0	0.1 0.25 0.4 0.6 1.0	400 1200 2500 4500 6500	100	90	110	175 165 165 165 165	5 10 25 50 100

Device Type	Chip Element Size	Maximum Ratings					Characteristics
		Applied Voltage		Transient			Nominal Varistor ④ Peak Voltage			Max. Clamping ⑤Voltage @ Test Current(8/20㎲)
		RMS 50/60Hz (25℃ )	DC (25℃ )	Energy ②	Average Power Dissipation	Peak ③ Current (8/20㎲)	Nominal Varistor ④ Peak Voltage
	Dia (mm)	Vacm (Volts)	Vdcm (Volts)	Wtm (Joules)	Ptam (Watts)	Itm (Amps)	Vnom (Volts)	Tolerance		Vc (Volts)	Ip (Amps)
	Dia (mm)	Vacm (Volts)	Vdcm (Volts)	Wtm (Joules)	Ptam (Watts)	Itm (Amps)	Vnom (Volts)	Min.(Volts)	Max.(Volts)	Vc (Volts)	Ip (Amps)
SVC 121D-05A SVC 121D-07A SVC 121D-10A SVC 121D-14A SVC 121D-20A	5 7 10 14 20	75	100	2.5 5.0 12.0 20.0 40.0	0.1 0.25 0.4 0.6 1.0	400 1200 2500 4500 6500	120	108	132	210 200 200 200 200	5 10 25 50 100
SVC 151D-05A SVC 151D-07A SVC 151D-10A SVC 151D-14A SVC 151D-20A	5 7 10 14 20	95	125	3.0 6.0 16.0 25.0 50.0	0.1 0.25 0.4 0.6 1.0	400 1200 2500 4500 6500	150	135	165	260 250 250 250 250	5 10 25 50 100
SVC 201D-05A SVC 201D-07A SVC 201D-10A SVC 201D-14A SVC 201D-20A	5 7 10 14 20	130	170	4.0 10.0 20.0 35.0 70.0	0.1 0.25 0.4 0.6 1.0	400 1200 2500 4500 6500	200	185	225	355 340 340 340 340	5 10 25 50 100
SVC 221D-05A SVC 221D-07A SVC 221D-10A SVC 221D-14A SVC 221D-20A	5 7 10 14 20	140	180	4.5 10.0 23.0 40.0 75.0	0.1 0.25 0.4 0.6 1.0	400 1200 2500 4500 6500	220	198	242	380 360 360 360 360	5 10 25 50 100
SVC 241D-05A SVC 241D-07A SVC 241D-10A SVC 241D-14A SVC 241D-20A	5 7 10 14 20	150	200	5.0 10.0 25.0 40.0 80.0	0.1 0.25 0.4 0.6 1.0	400 1200 2500 4500 6500	240	216	264	415 395 395 395 395	5 10 25 50 100
SVC 271D-05A SVC 271D-07A SVC 271D-10A SVC 271D-14A SVC 271D-20A	5 7 10 14 20	175	225	6.0 12.0 30.0 50.0 90.0	0.1 0.25 0.4 0.6 1.0	400 1200 2500 4500 6500	270	247	303	475 455 455 455 455	5 10 25 50 100
SVC 361D-07A SVC 361D-10A SVC 361D-14A SVC 361D-20A	5 7 10 14 20	230	300	7.5 15.0 35.0 65.0 120.0	0.1 0.25 0.4 0.6 1.0	400 1200 2500 4500 6500	360	324	396	620 595 595 595 595	5 10 25 50 100
SVC 391D-05A SVC 391D-07A SVC 391D-10A SVC 391D-14A SVC 391D-20A	5 7 10 14 20	250	320	8.0 17.0 40.0 70.0 130.0	0.1 0.25 0.4 0.6 1.0	400 1200 2500 4500 6500	390	351	429	675 650 650 650 650	2.55 10 25 50 100
SVC 431D-05A SVC 431D-07A SVC 431D-10A SVC 431D-14A SVC 431D-20A	5 7 10 14 20	275	350	9.0 20.0 45.0 75.0 140.0	0.1 0.25 0.4 0.6 1.0	400 1200 2500 4500 6500	430	387	473	754 710 710 710 710	5 10 25 50 100
SVC 471D-05A SVC 471D-07A SVC 471D-10A SVC 471D-14A SVC 471D-20A	5 7 10 14 20	300	385	10.0 20.0 45.0 80.0 150.0	0.1 0.25 0.4 0.6 1.0	400 1200 2500 4500 6500	470	423	517	810 775 775 775 775	5 10 25 50 100

Device Type	Chip Element Size	Maximum Ratings					Characteristics
		Applied Voltage		Transient			Nominal Varistor ④ Peak Voltage			Max. Clamping ⑤Voltage @ Test Current(8/20㎲)
		RMS 50/60Hz (25℃ )	DC (25℃ )	Energy ②	Average Power Dissipation	Peak ③ Current (8/20㎲)	Nominal Varistor ④ Peak Voltage
	Dia (mm)	Vacm (Volts)	Vdcm (Volts)	Wtm (Joules)	Ptam (Watts)	Itm (Amps)	Vnom (Volts)	Tolerance		Vc (Volts)	Ip (Amps)
	Dia (mm)	Vacm (Volts)	Vdcm (Volts)	Wtm (Joules)	Ptam (Watts)	Itm (Amps)	Vnom (Volts)	Min.(Volts)	Max.(Volts)	Vc (Volts)	Ip (Amps)
SVC 561D-10A SVC 561D-14A SVC 561D-20A	10 14 20	350	460	45.0 85.0 150.0	0.4 0.6 1.0	2500 4500 8000	560	504	616	920 920 920	25 50 100
SVC 621D-10A SVC 621D-14A SVC 621D-20A	10 14 20	385	550	45.0 85.0 150.0	0.4 0.6 1.0	2500 4500 8000	620	558	682	1025 1025 1025	25 50 100
SVC 681D-10A SVC 681D-14A SVC 681D-20A	10 14 20	420	560	45.0 90.0 160.0	0.4 0.6 1.0	2500 4500 8000	680	612	748	1120 1120 1120	25 50 100
SVC 751D-10A SVC 751D-14A SVC 751D-20A	10 14 20	460	615	50.0 100.0 175.0	0.4 0.6 1.0	2500 4500 8000	750	675	825	1240 1240 1240	25 50 100
SVC 781D-10A SVC 781D-14A SVC 781D-20A	10 14 20	485	640	50.0 105.0 180.0	0.4 0.6 1.0	2500 4500 6500	780	702	858	1290 1290 1290	25 50 100
SVC 821D-10A SVC 821D-14A SVC 821D-20A	10 14 20	510	670	55.0 110.0 190.0	0.4 0.6 1.0	2500 4500 6500	820	738	902	1355 1355 1355	25 50 100
SVC 911D-10A SVC 911D-14A SVC 911D-20A	10 14 20	550	745	60.0 120.0 215.0	0.4 0.6 1.0	2500 4500 6500	910	819	1001	1500 1500 1500	25 50 100
SVC 102D-10A SVC 102D-14A SVC 102D-20A	10 14 20	625	825	65.0 130.0 230.0	0.4 0.6 1.0	2500 4500 6500	1000	900	1100	1650 1650 1650	25 50 100
SVC 112D-10A SVC 112D-14A SVC 112D-20A	10 14 20	680	895	70.0 140.0 250.0	0.4 0.6 1.0	2500 4500 6500	1100	990	1210	1815 1815 1815	25 50 100
SVC 182D-14A SVC 182D-20A	14 20	1000	1465	24.0 400.0	0.6 1.0	4500 6500	1800	1620	1980	2970 2970	50 100

① The waveform of the maximum DC applied voltage is flat. When a ripple voltage as from a rectifier source is supplied make sure that the peak voltage is kept under th Vdcm An AC applied voltage(50/60Hz) form a since waveshape. When the distortion in the waveform is extensive make sure that the peak voltage is less than times the Vacm.	④ Nominal varistor voltage : Vnom Indicates the varistor terminal voltage measured with a 1mA DC applied. -0.1mA DC in the case of the 0.5A and 05B series.
② Energy : Wtm Transient energy ratings are given in the Wtm column of the specifications in Joules(watt-second). The rating is the maximum allowable energy for a single impulse of 2ms square-waveform current with continuous voltage applied. Energy ratings are based on a shift of Vnom of less than ±10% of initial value.	⑤ Maximum clamping voltage : Vc Indicates the peak teminal voltage measured with an 8/20㎲ impulse current applied.
③ Transient peak current(Itm) The peak current rating. Itm. of varistor is based on an 8/20 ㎲ test impulse waveshape. This peak current is the maximum peak current in which the nominal varistor voltage shift does not exceed ±10% when the test impulse is applied once at 5 mimutes intervals.	•Operating ambient temperature : -40℃ to +80℃ •Storage temperature : -40℃ to +125℃ •UL and CSA recognized(UL 1449, UL 497B or UL 1414, CSA) SVC varistors have been tested by Underwiter’s Laboratories, Inc. and Canadian Standards Association UL File No. E97754, E151195, E154171. CSA File No. LR78923.

Dimensions

A Type

Type	T Max.	D Max.	H Max.	L Min.	F	Ød
SVC 471D-05A	6	7	10	25	5	0.5
SVC 820D-07A	4.5	9	12	25	5	0.5
SVC 101D-07A	4.5	9	12	25	5	0.5
SVC 121D-07A	4.5	9	12	25	5	0.5
SVC 151D-07A	4.5	9	12	25	5	0.5
SVC 201D-07A	4.5	9	12	25	5	0.5
SVC 221D-07A	4.5	9	12	25	5	0.5
SVC 241D-07A	4.5	9	12	25	5	0.5
SVC 271D-07A	4.5	9	12	25	5	0.5
SVC 361D-07A	5	9	12	25	5	0.5
SVC 391D-07A	5	9	12	25	5	0.5
SVC 431D-07A	6	9	12	25	5	0.5
SVC 471D-07A	6	9	12	25	5	0.5
SVC 820D-10A	4.5	14	17	25	7.5	0.7
SVC 101D-10A	4.5	14	17	25	7.5	0.7
SVC 121D-10A	4.5	14	17	25	7.5	0.7
SVC 151D-10A	4.5	14	17	25	7.5	0.7
SVC 201D-10A	4.5	14	17	25	7.5	0.7
SVC 221D-10A	4.5	14	17	25	7.5	0.7
SVC 241D-10A	4.5	14	17	25	7.5	0.7
SVC 271D-10A	4.5	14	17	25	7.5	0.7
SVC 361D-10A	5	14	17	25	7.5	0.7
SVC 391D-10A	5	14	17	25	7.5	0.7
SVC 431D-10A	6	14	17	25	7.5	0.7
SVC 561D-10A	7.5	14	17	25	7.5	0.7
SVC 621D-10A	7.5	14	17	25	7.5	0.7
SVC 681D-10A	7.5	14	17	25	7.5	0.7
SVC 751D-10A	8.5	14	17	25	7.5	0.7
SVC 781D-10A	8.5	14	17	25	7.5	0.7
SVC 821D-10A	8.5	14	17	25	7.5	0.7
SVC 911D-10A	10.5	14	17	25	7.5	0.7
SVC 102D-10A	10.5	14	17	25	7.5	0.7
SVC 112D-10A	10.5	14	17	25	7.5	0.7
SVC 820D-14A	4.5	17.5	21	25	7.5	0.7
SVC 101D-14A	4.5	17.5	21	25	7.5	0.7
SVC 121D-14A	4.5	17.5	21	25	7.5	0.7
SVC 151D-14A	4.5	17.5	21	25	7.5	0.7
SVC 201D-14A	4.5	17.5	21	25	7.5	0.7
SVC 221D-14A	4.5	17.5	21	25	7.5	0.7
SVC 241D-14A	4.5	17.5	21	25	7.5	0.7
SVC 271D-14A	4.5	17.5	21	25	7.5	0.7
SVC 361D-14A	5	17.5	21	25	7.5	0.7
SVC 391D-14A	5	17.5	21	25	7.5	0.7
SVC 431D-14A	6	17.5	21	25	7.5	0.7
SVC 471D-14A	6	17.5	21	25	7.5	0.7
SVC 561D-14A	7.5	17.5	21	25	7.5	0.7
SVC 621D-14A	7.5	17.5	21	25	7.5	0.7
SVC 681D-14A	7.5	17.5	21	25	7.5	0.7
SVC 751D-14A	8.5	17.5	21	25	7.5	0.7
SVC 781D-14A	8.5	17.5	21	25	7.5	0.7
SVC 821D-14A	8.5	17.5	21	25	7.5	0.7
SVC 911D-14A	10.5	17.5	21	25	7.5	0.7
SVC 102D-14A	10.5	17.5	21	25	7.5	0.7
SVC 112D-14A	10.5	17.5	21	25	7.5	0.7
SVC 182D-14A	15	17.5	21	25	7.5	0.7
SVC 820D-20A	4.5	23	28	30	10	0.7
SVC 101D-20A	4.5	23	28	30	10	0.7
SVC 121D-20A	4.5	23	28	30	10	0.7
SVC 151D-20A	4.5	23	28	30	10	0.7
SVC 201D-20A	4.5	23	28	30	10	0.7
SVC 221D-20A	4.5	23	28	30	10	0.7
SVC 241D-20A	4.5	24	28	30	10	0.7
SVC 271D-20A	4.5	24	28	30	10	0.7
SVC 361D-20A	5	24	28	30	10	0.7
SVC 391D-20A	5	24	28	30	10	0.7
SVC 431D-20A	6	24	28	30	10	0.7
SVC 471D-20A	6	24	28	30	10	0.7
SVC 561D-20A	7.5	24	28	30	10	0.8
SVC 621D-20A	7.5	24	28	30	10	0.8
SVC 681D-20A	7.5	24	28	30	10	0.8
SVC 751D-20A	8.5	24	28	30	10	0.8
SVC 781D-20A	8.5	24	28	30	10	0.8
SVC 821D-20A	8.5	24	28	30	10	0.8
SVC 911D-20A	10.5	24	28	30	10	0.8
SVC 102D-20A	10.5	24	28	30	10	0.8
SVC 112D-20A	10	24	28	30	10	0.8
SVC 182D-20A	15	24	28	30	10	0.8

B Type

Type	T Max.	D Max.	H Max.	L Min.	F	Ød
SVC 180D-05B	4.5	7.5	10	25	5	0.5
SVC 220D-05B	4.5	7.5	10	25	5	0.5
SVC 270D-05B	4.5	7.5	10	25	5	0.5
SVC 330D-05B	4.5	7.5	10	25	5	0.5
SVC 390D-05B	4.5	7.5	10	25	5	0.5
SVC 470D-05B	4.5	7.5	10	25	5	0.5
SVC 560D-05B	4.5	7.5	10	25	5	0.5
SVC 680D-05B	4.5	7.5	10	25	5	0.5
SVC 180D-07D	4.5	9	10	25	5	0.5
SVC 220D-07D	4.5	9	10	25	5	0.5
SVC 270D-07D	4.5	9	10	25	5	0.5
SVC 330D-07D	4.5	9	10	25	5	0.5
SVC 390D-07D	4.5	9	10	25	5	0.5
SVC 470D-07D	4.5	9	10	25	5	0.5
SVC 560D-07D	4.5	9	10	25	5	0.5
SVC 680D-07D	4.5	9	10	25	5	0.5
SVC 180D-10B	5	13.5	16.5	25	7.5	0.7
SVC 220D-10B	5	13.5	16.5	25	7.5	0.7
SVC 270D-10B	5	13.5	16.5	25	7.5	0.7
SVC 330D-10B	5	13.5	16.5	25	7.5	0.7
SVC 390D-10B	5	13.5	16.5	25	7.5	0.7
SVC 470D-10B	5	13.5	16.5	25	7.5	0.7
SVC 560D-10B	5	13.5	16.5	25	7.5	0.7
SVC 680D-10B	5	13.5	16.5	25	7.5	0.7
SVC 180D-14B	5	17	20	25	7.5	0.7
SVC 220D-14B	5	17	20	25	7.5	0.7
SVC 270D-14B	5	17	20	25	7.5	0.7
SVC 330D-14B	5	17	20	25	7.5	0.7
SVC 390D-14B	5	17	20	25	7.5	0.7
SVC 470D-14B	5	17	20	25	7.5	0.7
SVC 560D-14B	5	17	20	25	7.5	0.7
SVC 680D-14B	5	17	20	25	7.5	0.7
SVC 180D-20B	6	23	27	30	10	0.8
SVC 220D-20B	6	23	27	30	10	0.8
SVC 270D-20B	6	23	27	30	10	0.8
SVC 330D-20B	6	23	27	30	10	0.8
SVC 390D-20B	6	23	27	30	10	0.8
SVC 470D-20B	6	23	27	30	10	0.8
SVC 560D-20B	6	23	27	30	10	0.8
SVC 680D-20B	6	23	27	30	10	0.8

Type	T Max.	D Max.	H Max.	L Min.	F	Ød
SVC 820D-05A	4.5	7	10	25	5	0.5
SVC 101D-05A	4.5	7	10	25	5	0.5
SVC 121D-05A	4.5	7	10	25	5	0.5
SVC 151D-05A	4.5	7	10	25	5	0.5
SVC 201D-05A	4.5	7	10	25	5	0.5
SVC 221D-05A	4.5	7	10	25	5	0.5
SVC 241D-05A	4.5	7	10	25	5	0.5
SVC 271D-05A	4.5	7	10	25	5	0.5
SVC 361D-05A	5	7	10	25	5	0.5
SVC 391D-05A	5	7	10	25	5	0.5
SVC 431D-05A	6	7	10	25	5	0.5

FS5 Type	FK5 Type	FF9 Type

FF7 Type	FF8 Type

Char, Curves and Lifetime

Transient V-I Charactic Curves Current waveform under 10-2 A : DC over 10-1 A : 8/20㎲	Pulse Lifetime Ratings Notes : 2-pulse : 5-minute interval 3 to 10-pulse : 2-minute interval Up to 106 - pulse : 10-second interval
05B(SVC 180D-05B to SVC 680D-05B)	05B(SVC 180D-05B to SVC 680D-05B)

05A(SVC 820D-05A to SVC 471D-05A)	05A(SVC 820D-05A to SVC 471D-05A)

Transient V-I Characteristic Curves Current waveform under 10-2 A : DC over 10-1 A : 8/20㎲	Pulse Lifetime Ratings Notes : 2-pulse : 5-minute interval 3 to 10-pulse : 2-minute interval Up to 106-pulse : 10-second interval
7B(SVC 180D-07B to SVC 680D-07B)	07B(SVC 180D-07B to SVC 680D-07B)

07A(SVC 820D-07A to SVC 471D-07A)	07A(SVC 820D-07A to SVC 471D-07A)

Transient V-I Characteristic Curves Current waveform under 10-2 A : DC over 10-1 A : 8/20㎲	Pulse Lifetime Ratings Notes : 2-pulse : 5-minute interval 3 to 10-pulse : 2-minute interval Up to 106-pulse : 10-second interval
10B(SVC 180D-10B to SVC 680D-10B)	10B(SVC 180D-10B to SVC 680D-10B)

10A(SVC 820D-10A to SVC 471D-10A)	10A(SVC 820D-10A to SVC 471D-10A)

Transient V-I Characteristic Curves Current waveform under 10-2 A : DC over 10-1 A : 8/20㎲	Pulse Lifetime Ratings Notes : 2-pulse : 5-minute interval 3 to 10-pulse : 2-minute interval Up to 106-pulse : 10-second interval
10A(SVC 561D-10A to SVC 112D-10A)	10A(SVC 561D-10A to SVC 112D-10A)

14B(SVC 180D-14B to ENC 680D-14B)	14B(SVC 180D-14B to SVC 680D-14B)

Transient V-I Characteristic Curves Current waveform under 10-2 A : DC over 10-1 A : 8/20㎲	Pulse Lifetime Ratings Notes : 2-pulse : 5-minute interval 3 to 10-pulse : 2-minute interval Up to 106-pulse : 10-second interval
4A(SVC 820D-14A to SVC 471D-14A)	14A(SVC 820D-14A to SVC 471D-14A)

14A(SVC 561D-14A to SVC 182D-14A)	14A(SVC 561D-14A to SVC 182D-14A)

Transient V-I Characteristic Curves Current waveform under 10-2 A : DC over 10-1 A : 8/20㎲	Pulse Lifetime Ratings Notes : 2-pulse : 5-minute interval 3 to 10-pulse : 2-minute interval Up to 106-pulse : 10-second interval
20B(SVC 180D-20B to SVC 680D-20B)	20B(SVC 180D-20B to SVC 680D-20B)

20A(SVC 820D-20A to SVC 471D-20A)	20A(SVC 820D-20A to SVC 471D-20A)

Transient V-I Characteristic Curves Current waveform under 10-2 A : DC over 10-1 A : 8/20㎲	Pulse Lifetime Ratings Notes : 2-pulse : 5-minute interval 3 to 10-pulse : 2- minute interval Up to 106 -pulse : 10-second interval
0A(SVC 561D-20A to SVC 182D-20A)	20A(SVC 561D-20A to SVC 182D-20A)

Applications

• The Protection of semiconducting elements such as diodes, thyristors, transistors, IC and relays against transient Voltages.
• Similar protection of many types of measuring instruments, control machinery and communication equipment and broadcasting equipment against inductive lightning and switching surges.
• Protection of general purpose electrical equipment, domestic mechinery and appliances. TV and radios and similar consumer products against lightning and switching surges.

Line and groud circuit
Varistor voltage selection table(ZE)

Power Supply Voltage

Type

100V AC

SVC431D -□□A

200V AC

SVC471D -□□A

SVC751D -□□A to SVC112D -□□A*

SVC182D -□□A**

Notes :
① When subjected to megger testing(500V DC), the insulation resistance value can decrease due to the leakage current of the SVC, To avoid this remove the varistor or use* marked SVC.
② When subjected to dielectric strength test(1000V AC). remove the SVC or use** marked SVC.
Select varistors taking a note of operating conditions peculiar to the equipment.

AC/DC single-phase circuit	AC three-phase circuit

Power Supply Circuit Protection

Line circuit
Varistor voltage selection table (ZL)

Power Supply Voltage	Type
100VAC	SVC201D -□□A SVC221D -□□A SVC241D -□□A SVC271D -□□A*
200VAC	SVC391D -□□A SVC431D -□□A SVC471D -□□A*
12V DC	SVC220D -□□B
24V DC	SVC390D -□□B

Notes :
① The power supply voltage must not exceed the maximum allowable circuit voltage.
② Since independent wiring loads and capacitive loads cause the voltage build-up at the time of opening or closing the load, use SVC having a varistor voltage as high as possible.(*mark)
③ The bold faced portions of the type letters vary.

Single-phase circuit	AC three-phase circuit

Telecommunication Circuit Protection

Varistor voltage selection guied

Power Supply Voltage	Type
12V DC	SVC180D -□□B SVC220D -□□B SVC820D -□□A
24V AC	SVC390D -□□B SVC820D -□□A

Notes :

The varistor SVC has a capacitance value. Take not of this when applying them to high-frequency signal circuits.

① Connect the SVC at a position nearer to the equipment than the overcurrent protection device“Ⅰ”(fuse, MCCB) as is shown in the diagram. When the SVC is shorted, the overcurrent protection device
“Ⅰ”operates (trips or blow off the fuse).

② If the overcurrent protection device“Ⅰ”can not be installed in“Ⅰ”position, connect a fuse a “t Ⅱ”position. Select fuse rated current for the SVC referring to the following table.

SVC	05A	07A	10A	14A	20A
SVC	05B	07B	10B	14B	20B
Applicable fuse rated current(A)	1 to 2	2 to 3	3 to 5	3 to 10	5 to 15

③ When“Z2”SVC is connected between the equipment and ground install an ELCB (Earth Leakage Circuit Breaker). If not possible, connect a fuse or thermal fuse at“Ⅲ”position.

Installation
① When operated at location near heating element or exposed to direct sun light, confirm that the ambient temparature range.
② When operated in dusty or dirty locations, or exposed to corrosive atomospheres, or where metallic powders or salt can be expected, be sure to mount within a protective enclosure.

Molding
When shielding the SVC in a resin molding, take a note of the materials used and temperature, since they influence the reliability. For further information please contact SAMWHA

Current, power and energy rating vs, temperature

Electrical Characteristics

Operating ambient temperature	-40℃ to +85℃
Storage temperature	-40℃ to +125℃
Voltage temperatur coefficient	-0.05% ℃
Insulation resistance(at500V)	Over 1000MΩ

Switching Circuit Protection

Protection of relay (Contact coil)	Protection of semiconductors

Varistor voltage selection guide

Power Supply Voltage	Type
12V DC	SVC220D -□□B
24V DC	SVC390D -□□B
100V DC	SVC151D -□□A
100V AC	SVC201D -□□A SVC221D -□□A SVC241D -□□A SVC271D -□□A

Notes :
① The power supply voltage must not exceed the maximum allowable circuit voltage of the SVC
② Pay due attention to the surge energy generated by the load.
③ Select SVC referring to the pulse lifetime rating.
④ To further reduce the tendency of sparking across the contacts connect a capacitors parallel with the SVC. This will also protect the equipment from electromagnetic wave jamming.

Application Notes

Overcurrent protection

When surges exceed the rating for the SVC, short-circuits or damages can be expected. Take following precautions.

Recognized standards

Standard

Content

Applicable SVC series

File No.

UL 1449 3rd edition

Surge-protective Devices - Component

Other SPD Applications : 05/07/10 Series,

14B/20B Series

Type 3 SPD Applications : 14A/20A Series

E332621

UL 497B

Component-Isolated Loop Circuit Protectors

SVC 180D - □~ SVC821D -□

E154171

VDE

IEC61051-1:2007-04 IEC61051-2:1991-01 IEC61051-2-2:1991-01

Varistor

05/07/10/14 Series

116012

CAS

CLASS 2221 01

AUDIO AND VIDEO

EQUIPMENT - Accessories and Parts for Electronic Equipment

SVC201D - □ ~SVC182D - □

1577876

Application Example

Fire Alarm System	Stove, Boiler
Traffic Signal Control	Vending Machine
Solenoid	Brake, Clutch
Contect Protection	Microwave Oven
Thytister Protection	Triac Protection
TV Booster	Sound Output Circuit

Varistor Terminology

Varistor Voltage : Vnom	Clamping Voltage : Vc
Varistor peak terminal voltage measured with a specified current applied The DC current applied is 1mA normally. Typical values measured at a test frequency of 1kHz	Maximum terminal voltage (peak voltage across the varistor) measured with an applied 8/20㎲ impulse of a given peak current
Rated peak transient current : itm Maximum peak current through the varistor with line voltage applied. The maximum peak current with in the varistor voltage change ratio of ±10% with the standard 8/20㎲ impulse current applied two times at 5 minute interval	Test current waveform Characteristics tests for Varistors are carried out by using 8/20㎲ test impulses Data such as the maximum clamping voltage(Vc)and the transient peak current(Itm) are obtained by using this impulse current However, for the Vc characteristics of the Axial Package type a 10mA DC squarewave current is used to cary out the test.
Rated transient energy : Wtm Maximum allowable energy for a single impulse of 2ms square-wave current waveform with rated continuous voltage applied. Maximum energy rating base on a shift of Vnom of less than ±10% of initial value.
Pulse lifetime rating This is expressed as the maximum allowable number of impulse currents applied. 8/20㎲ impulse current(or 2ms square wave) is applied at prescribed interval. This curve also provides for derating current as required with repetitive pulsing.	Rated RMS Voltage : Vacm Maximum continuous sinusoidal RMS voltage at 50/60Hz which may be applied. Rated DC Voltage : Vdcm Maximum continuous DC voltage which may be applied. Rated average power dissipation : Ptam Maximum average power that can be applied within the specified ambient temperature.