◆ UBF RA120　(120V)
 
◆Electrical Characteristics
 

Part No		Figure / Lead Option	lhold (A)	Itrip (A)	Vmax (V)	Imax (A)	Pd typ (W)	Max. (A)	Time-to-trip  (s)	R min (Ω)	R1 Max  (Ω)
UBF	RA120010	Fig. 1, Ø0.51, Sn/CuFe	0.10	0.20	120	2.0	0.84	0.50	10.0	3.00	7.50
UBF	RA120017	Fig. 1, Ø0.51, Sn/CuFe	0.17	0.34	120	2.0	0.84	0.80	10.0	2.00	7.00
UBF	RA120020	Fig. 1, Ø0.51, Sn/CuFe	0.20	0.40	120	2.0	1.08	1.00	9.0	1.83	4.40
UBF	RA120025	Fig. 1, Ø0.51, Sn/CuFe	0.25	0.50	120	3.0	1.08	1.25	7.5	1.25	3.00
UBF	RA120030	Fig. 1, Ø0.51, Sn/CuFe	0.30	0.60	120	3.0	1.44	1.50	8.5	0.88	2.10
UBF	RA120040	Fig. 1, Ø0.51, Sn/CuFe	0.40	0.80	120	3.0	1.44	2.00	6.5	0.55	1.29
UBF	RA120050	Fig. 2, Ø0.81, Sn/CuFe	0.50	1.00	120	3.0	1.56	2.25	6.0	0.50	1.17
UBF	RA120065	Fig. 2, Ø0.81, Sn/CuFe	0.65	1.30	120	5.0	1.68	3.25	5.7	0.31	0.72
UBF	RA120070	Fig. 2, Ø0.81, Sn/CuFe	0.70	1.50	120	5.0	1.80	3.75	6.3	0.25	0.60
UBF	RA120075	Fig. 2, Ø0.81, Sn/CuFe	0.75	1.50	120	7.5	2.64	3.75	15.0	0.25	0.69
UBF	RA120090	Fig. 2, Ø0.81, Sn/CuFe	0.90	1.80	120	5.0	1.80	4.50	7.2	0.20	0.47
UBF	RA120100	Fig. 2, Ø0.81, Sn/CuFe	1.00	2.00	120	10.0	2.64	5.00	15.0	0.18	0.47
UBF	RA120110	Fig. 2, Ø0.81, Sn/CuFe	1.10	2.20	120	8.0	2.28	5.50	8.2	0.15	0.38
UBF	RA120125	Fig. 2, Ø0.81, Sn/CuFe	1.25	2.50	120	12.5	2.88	6.25	20.0	0.11	0.33
UBF	RA120130	Fig. 2, Ø0.81, Sn/CuFe	1.35	2.70	120	10.0	2.24	6.75	9.6	0.12	0.30
UBF	RA120135	Fig. 2, Ø0.81, Sn/CuFe	1.35	2.70	120	13.5	3.12	6.75	20.0	0.11	0.30
UBF	RA120160	Fig. 2, Ø0.81, Sn/CuFe	1.60	3.20	120	12.0	3.12	8.00	11.4	0.09	0.22
UBF	RA120180	Fig. 2, Ø0.81, Sn/CuFe	1.80	3.70	120	12.0	3.36	9.25	12.6	0.08	0.19
UBF	RA120200	Fig. 2, Ø0.81, Sn/CuFe	2.00	4.20	120	20.0	4.32	10.00	36.0	0.08	0.21
UBF	RA120250	Fig. 2, Ø0.81, Sn/CuFe	2.50	5.00	120	15.0	4.44	10.25	15.6	0.05	0.13
UBF	RA120300	Fig. 2, Ø0.81, Sn/CuFe	3.00	6.00	120	17.0	4.56	15.00	19.8	0.04	0.10
UBF	RA120375	Fig. 2, Ø0.81, Sn/CuFe	3.75	7.50	120	20.0	4.80	18.75	24.0	0.03	0.08

 

 
 
 
◆Comment
 

Ihold	Hold current is the maximum current that UB Fuse can pass through without interruption at 20°C unless otherwise specified.
Itrip	Trip current is the minimum current that will switch the device from low resistance state to high resistance state at 20°C unless specified.
Vmax	The maximum voltage device can withstand without damage at rated current.
Imax	The maximum current device can withstand without damage at rated voltage.
Pd	The power dissipated from device when in the tripped state at 20°C unless otherwise specified.
R min	The minimum resistance of device as received from the factory at 20°C unless otherwise specified.
R max	The maximum resistance of device as received from the factory at 20°C unless otherwise specified.
R1max	The maximum resistance of device when measured one hour post trip at 20°C unless otherwise specified.
Max. Time-to-trip	The maximum time for device to trip at specified current ratings at 20°C unless otherwise specified.

 
 
◆ Environmental Characteristics
 

Test	Test Conditions	Resistance Change
Passive Aging	+85°C, 1000 hours	±5% typical resistance change
Humidity Aging	+85°C, 85% R.H., 7 days	±5% typical resistance change
Thermal Shock	+85°C to -40°C, 10 times MIL-STD-202, Method 107G	±5% typical resistance change
Vibration	MIL-STD-883C, Condition A	No change
Solvent resistance	MIL-STD-202, Method 215	No change

 
 
 
 
◆Dimensions
 

	A	B	C	D	E	F	G
Part No	Figure	Max.	Max.	Typical	Min.	Max.	Typical
UBF RA120010	1	7.9	13.0	5.1	7.6	3.8	2.2
UBF RA120017	1	7.9	13.0	5.1	7.6	3.8	2.2
UBF RA120020	2	7.9	13.0	5.1	7.6	3.8	2.2
UBF RA120025	2	7.9	13.0	5.1	7.6	3.8	2.2
UBF RA120030	2	7.9	13.0	5.1	7.6	3.8	2.2
UBF RA120040	2	8.2	14.2	5.1	7.6	3.8	2.2
UBF RA120050	2	9.2	14.9	5.1	7.6	3.8	2.2
UBF RA120065	2	9.7	14.9	5.1	7.6	3.8	2.2
UBF RA120070	2	10.6	15.5	5.1	7.6	3.8	2.2
UBF RA120075	4	10.9	17.0	5.1	7.6	4.1	2.2
UBF RA120090	2	11.9	15.9	5.1	7.6	3.8	2.2
UBF RA120100	4	11.5	20.1	5.1	7.6	4.1	2.2
UBF RA120110	3	13.3	18.3	5.1	7.6	4.1	2.2
UBF RA120125	4	14.0	21.7	5.1	7.6	4.1	2.2
UBF RA120130	3	15.5	20.6	5.1	7.6	4.1	2.2
UBF RA120135	4	16.3	21.7	5.1	7.6	4.1	2.2
UBF RA120160	3	17.5	22.5	5.1	7.6	4.1	2.2
UBF RA120180	3	19.9	24.9	5.1	7.6	4.1	2.2
UBF RA120200	4	23.5	27.9	10.2	7.6	4.1	2.2
UBF RA120250	3	22.5	27.5	10.2	7.6	4.1	2.2
UBF RA120300	3	25.5	30.0	10.2	7.6	4.1	2.2
UBF RA120375	3	29.5	34.0	10.2	7.6	4.1	2.2

 
 
●NOTE:
 
All drawings are not in scale and layout may vary. 
All parts dimension is in millimeter unless otherwise specified.
Radial-leaded parts are not designed for reflow soldering.
 
 
●Lead Materials: 
 
UBFRX30090 – 250, Tin plated Copper Steel, Ø0.51mm / 0.205mm2 / 24 AWG
UBFRX30300 – 900, Tin plated Copper, Ø0.81mm / 0.52mm2 / 20 AWG
 
●Insulation Materials:     Cured, flame-retardant epoxy polymer that meets UL94V-0
 
●Agency Approval:
 

UL File Number	E 119550
c-UL File Number	E 119550
TUV File Number	Pending

 
 

 
 
◆Typical Thermal Derating Chart - Ihold (A)
 

Part No	-40	-20	0	20	40	60	85
UBF RA120010	0.16	0.14	0.12	0.10	0.08	0.06	0.04
UBF RA120017	0.27	0.23	0.20	0.27	0.14	0.10	0.06
UBF RA120020	0.32	0.28	0.24	0.20	0.16	0.12	0.08
UBF RA120025	0.40	0.35	0.30	0.25	0.20	0.15	0.10
UBF RA120030	0.47	0.41	0.36	0.30	0.24	0.18	0.11
UBF RA120040	0.63	0.55	0.48	0.40	0.32	0.24	0.15
UBF RA120050	0.79	0.69	0.60	0.50	0.40	0.30	0.19
UBF RA120065	1.03	0.90	0.77	0.65	0.52	0.39	0.25
UBF RA120070	1.19	1.04	0.89	0.75	0.68	0.53	0.29
UBF RA120075	1.19	1.24	0.89	0.75	0.68	0.53	0.29
UBF RA120090	1.42	1.24	1.07	0.90	0.81	0.63	0.34
UBF RA120100	1.58	1.38	1.19	1.00	0.90	0.70	0.38
UBF RA120110	1.74	1.52	1.13	1.10	0.99	0.77	0.42
UBF RA120125	1.98	1.73	1.49	1.25	1.13	0.88	0.48
UBF RA120130	2.13	1.86	1.61	1.44	1.22	0.95	0.51
UBF RA120135	2.13	1.86	1.61	1.67	1.22	0.95	0.51
UBF RA120160	2.53	2.21	1.90	1.60	1.44	1.12	0.06
UBF RA120180	2.92	2.55	2.20	1.85	1.67	1.30	0.70
UBF RA120200	3.16	2.76	2.38	2.00	1.80	1.40	0.76
UBF RA120250	3.95	3.45	2.98	2.50	2.25	1.75	0.95
UBF RA120300	4.74	4.14	3.57	3.00	2.70	2.10	1.14
UBF RA120375	5.93	11.70	4.46	3.75	3.38	2.63	1.43

 
 

 
 
◆Typical Time To Trip Curve at 20°C