Data Sheet

Type
RST
2
/
4
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302 USA
+1
201.432.0463
[e-mail]
belfuse.com/circuit
-
protection
© 201
8
Bel
Fuse, Inc.
Rev.
RST
Nov
2018
Environmental Specifications
Electrical S
pecifications
Catalog
Number
Ampere
Rating
Typical
Cold
Resistance
(ohms)
Volt
-
drop
@100% In
(Volt) max.
Voltage and
Interrupting
Ratings
Melting I²T
<10 mSec
(A²
Sec)
Melting I²T
@10 In
(A²
Sec)
Maximum
Power
Dissipation
(W)
Agency
Approvals
RST 80
80mA
3.5
0.398
See Table of
Safety
Approvals on
Page 1 for
Voltage and
associated
Interrupting
Ratings
0.01
0.01
0.10
Y
Y
Y
Y
RST 100
100mA
2.3
0.329
0.02
0.02
0.
11
Y
Y
Y
Y
RST 125
125mA
1.6
0.295
0.04
0.04
0.13
Y
Y
Y
Y
RST 160
160mA
1.1
0.252
0.07
0.06
0.15
Y
Y
Y
Y
RST 200
200mA
0.73
0.200
0.12
0.11
0.17
Y
Y
Y
Y
RST 250
250mA
0.55
0.188
0.38
0.41
0.19
Y
Y
Y
Y
RST 315
315mA
0.36
0.152
0.60
0.66
0.22
Y
Y
Y
Y
RST 400
400mA
0.25
0.129
0.9
1.0
0.25
Y
Y
Y
Y
RST 500
500mA
0.18
0.114
1.5
1.7
0.29
Y
Y
Y
Y
RST 630
630mA
0.13
0.109
2.4
2.6
0.33
Y
Y
Y
Y
RST 800
800mA
0.095
0.103
3.7
4.2
0.38
Y
Y
Y
Y
RST 1
1A
0.070
0.090
6
7
0.44
Y
Y
Y
Y
Y
RST 1.25
1.25A
0.053
0.087
9
11
0.51
Y
Y
Y
Y
Y
RST 1.6
1.6A
0.038
0.085
15
17
0.58
Y
Y
Y
Y
Y
RST 2
2A
0.029
0.084
23
27
0.67
Y
Y
Y
Y
Y
RST 2.5
2.5A
0.022
0.084
37
43
0.77
Y
Y
Y
Y
Y
RST 3.15
3.15A
0.017
0.074
58
69
0.88
Y
Y
Y
Y
Y
RST 4
4A
0.013
0.073
92
110
1.02
Y
Y
Y
Y
Y
RST 5
5A
0.010
0.073
145
175
1.17
Y
Y
Y
Y
Y
RST 6.3
6.3A
0.008
0.072
230
281
1.34
Y
Y
Consult manufacturer for other ratings
Shock Resistance
MIL
-
STD
-
202G, Method 213B, Test Condition 1
(100 G's peak for 6 milliseconds; Sawtooth waveform)
Vibration Resistance
MIL
-
STD
-
202G, Method 201A
(10
-
55 Hz X 3
axis / no load).
Salt Spray Resistance
MIL
-
STD
-
202G, Method 101E, Test Condition B (48 hrs
.
).
Solderability
MIL
-
STD
-
202G, Method 208H
Resistance to solder Heat
MIL
-
STD
-
202G, Method 210F, Test Condition C. Top
Side. (260
℃
,20 sec)
Moisture Resistance
MIL
-
STD
-
202G, Method 202G, Method 106G
Operating Temperature
-
55
℃
to +125
℃
Spe
cifications subject
to change without notice