This product complies with the RoHS Directive (EU 2002/95/EC).
Circuit Protector Elements
1
Publication date: November 2006 SQB00036BED
UNHZ203
Circuit Protector Elements
For overcurrent protection
■Features
•Sharp cutoff characteristics and low voltage drop
•Flame retardant package and low heat generation, high density
mounting is possible.
■Absolute Maximum Ratings Ta = 25°C
Parameter Symbol Rating Unit
Operating ambient temperature Topr −55 to +125 °C
Storage temperature Tstg −55 to +125 °C
■Usage Notes
•Package shall be overheated and dangerous for overcurrent.
•This device should be used only to the secondary circuit.
Package will be damaged for added overpower.
•This device is not electrical fuse legally. Please draw a clear line between electrical fuse from this device.
Parameter Min Typ Max Unit
Rated voltage 50 V
Rated current 1.2 A
Internal Resistance 35 46 57 mΩ
Cutoff current *2.4 A
■Electrical Characteristics Ta = 25°C ± 3°C
Note) *:Measurement condition of cutoff current shall be at Ta = 25°C, t = 1 s
Tolerance of cutoff current shall be ± 20%
Marking Symbol: H3
Unit: mm
SMini2-F1 Package
5˚
5˚
1.25
±0.1
0.7
±0.1
2.5
±0.2
1.7
±0.1
0.4
±0.1
0 to 0.1
(0.15)
0.16
0.5
±0.1
1
2
+0.1
–0.06
0.35
±0.1
0 to 0.1
2
1
Lead Connection