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
T
a
=
25
°
C
Parameter
Symbol
Rating
Unit
Operating ambient temperature
T
opr
−
55 to
+
125
°
C
Storage temperature
T
stg
−
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
m
Ω
Cutoff current
*
2.4
A
■
Electrical Characteristics
T
a
=
25
°
C
±
3
°
C
Note) *: Measurement condition of cutoff current shall be at T
a
=
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