◆ UBF hSMD　(2920)
 
◆Electrical Characteristics
 

Part No		lhold (A)	Itrip (A)	Vmax (V)	Imax (A)	Pd typ (W)	Max. (A)	Time-to-trip  (s)	R min (Ω)	R1 Max  (Ω)
UBF	hSMD030	0.30	0.60	60	10	1.5	1.5	3.0	1.000	4.800
UBF	hSMD050	0.50	1.00	60	10	1.5	2.5	4.0	0.300	1.400
UBF	hSMD075	0.70	1.50	33	40	1.5	8.0	0.3	0.018	1.000
UBF	hSMD100	1.10	2.20	33	40	1.5	8.0	0.5	0.090	0.410
UBF	hSMD125	1.25	2.50	33	40	1.5	8.0	2.0	0.050	0.250
UBF	hSMD150	1.50	3.00	33	40	1.5	8.0	2.0	0.050	0.230
UBF	hSMD185	1.85	3.70	33	40	1.5	8.0	2.5	0.040	0.150
UBF	hSMD200	2.00	4.00	16	40	1.5	8.0	4.5	0.035	0.120
UBF	hSMD250	2.50	5.00	16	40	1.5	8.0	16.0	0.025	0.085
UBF	hSMD260	2.60	5.20	6	40	1.5	8.0	20.0	0.020	0.075
UBF	hSMD300	3.00	5.20	6	40	1.5	8.0	25.0	0.010	0.048

 
 
◆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.

 
 
◆Dimensions
 

	A		B		C		D		E
Part No UBF　hSMD	Min.	Max.	Min.	Max.	Min.	Max.	Min.	Max.	Min.	Max.
	6.73	7.98	4.80	5.44	0.30	1.15	0.35	--	0.30	--

 
 
●NOTE:

All drawings are not in scale and layout may vary. 
All parts dimension is in millimeter unless otherwise specified.
Terminal material is Tin (Sn) plated Copper (Cu).
 
●Packaging: 2000 pcs per reel
 
●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 hSMD030	0.47	0.45	0.35	0.30	0.25	0.20	0.14
UBF hSMD050	0.76	0.67	0.55	0.50	0.45	0.35	0.23
UBF hSMD075	1.10	0.99	0.87	0.75	0.63	0.49	0.35
UBF hSMD100	1.60	1.45	1.28	1.10	0.92	0.71	0.52
UBF hSMD125	1.60	1.45	1.28	1.10	0.92	0.71	0.52
UBF hSMD150	2.30	2.05	1.77	1.50	1.23	0.95	0.61
UBF hSMD185	2.68	2.48	2.16	1.85	1.54	1.22	0.83
UBF hSMD200	2.90	2.68	2.34	2.00	1.66	1.32	0.90
UBF hSMD250	3.63	3.35	2.93	2.50	2.08	1.65	1.13
UBF hSMD260	3.77	3.48	3.04	2.60	2.16	1.72	1.17
UBF hSMD300	4.35	4.02	3.51	3.00	2.49	1.98	1.35

 
 
◆ Environmental Characteristics
 

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

 
 
◆Typical Time To Trip Curve at 23°C



 
 

 
 

◆ Recommended Reflow Profile & Pad Size
 

 

Part No	R	S	T
UBF hSMD030	5.10	2.30	5.60
UBF hSMD050	5.10	2.30	5.60
UBF hSMD075	5.10	2.30	5.60
UBF hSMD100	5.10	2.30	5.60
UBF hSMD125	5.10	2.30	5.60
UBF hSMD150	5.10	2.30	5.60
UBF hSMD185	5.10	2.30	5.60
UBF hSMD200	5.10	2.30	5.60
UBF hSMD250	5.10	2.30	5.60
UBF hSMD260	5.10	2.30	5.60
UBF hSMD300	5.10	2.30	5.60

 
 

 
 

 
 
◆ Tape & Reel Packaging Specification per EIA481-1


 

Parameter as EIA481-1	Dimensions (mm)
W	12.00 ± 0.30
P0	4.00 ± 0.10
P1	8.00 ± 0.10
P3	2.00 ± 0.05
A0	3.50 ± 0.23
B0	5.10 ± 0.15
B1max	8.2
D0	1.50 +0.10/-0.00
F	5.50 ± 0.05
E1	1.75 ± 0.10
E2min	10.25
T max	0.6
T1max	0.1
K0	0.90 ± 0.15