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Type RST
Environmental Specifications
MIL-STD-202G, Method 213B, Test Condition 1
Shock Resistance
(100 G's peak for 6 milliseconds; Sawtooth waveform)
MIL-STD-202G, Method 201A (10-55 Hz X 3 axis / no load).
MIL-STD-202G, Method 101E, Test Condition B (48 hrs.).
MIL-STD-202G, Method 208H
Vibration Resistance
Salt Spray Resistance
Solderability
Resistance to solder Heat
Moisture Resistance
Operating Temperature
MIL-STD-202G, Method 210F, Test Condition C. Top Side. (260℃,20 sec)
MIL-STD-202G, Method 202G, Method 106G
-55℃ to +125℃
Electrical Specifications
Maximum
Typical
Agency Approvals
Volt-drop
@100% In
(Volt) max.
Voltage and
Interrupting
Ratings
Melting I²T Melting I²T
Catalog
Number
Ampere
Rating
Cold
Resistance
(ohms)
Power
Dissipation
(W)
<10 mSec
(A² Sec)
@10 In
(A² Sec)
RST 80
80mA
100mA
125mA
160mA
200mA
250mA
315mA
400mA
500mA
630mA
800mA
1A
3.5
0.398
0.329
0.295
0.252
0.200
0.188
0.152
0.129
0.114
0.109
0.103
0.090
0.087
0.085
0.084
0.084
0.074
0.073
0.073
0.072
0.01
0.02
0.04
0.07
0.12
0.38
0.60
0.9
1.5
2.4
3.7
6
0.01
0.02
0.04
0.06
0.11
0.41
0.66
1.0
1.7
2.6
0.10
0.11
0.13
0.15
0.17
0.19
0.22
0.25
0.29
0.33
0.38
0.44
0.51
0.58
0.67
0.77
0.88
1.02
1.17
1.34
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
RST 100
RST 125
RST 160
RST 200
RST 250
RST 315
RST 400
RST 500
RST 630
RST 800
RST 1
2.3
1.6
1.1
0.73
0.55
0.36
0.25
0.18
0.13
0.095
0.070
0.053
0.038
0.029
0.022
0.017
0.013
0.010
0.008
See Table of
Safety
Approvals on
Page 1 for
Voltage and
associated
Interrupting
Ratings
4.2
7
Y
Y
Y
Y
Y
Y
Y
Y
1.25A
1.6A
RST 1.25
RST 1.6
RST 2
9
11
15
17
2A
23
27
RST 2.5
RST 3.15
RST 4
2.5A
37
43
3.15A
4A
58
69
92
110
175
281
RST 5
5A
145
230
RST 6.3
6.3A
Consult manufacturer for other ratings
Specifications subject to change without notice
Bel Fuse Inc.
206 Van Vorst Street
+1 201.432.0463
Bel.US.CS@belf.com
Jersey City, NJ 07302 USA
belfuse.com/circuit-protection
© 2019 Bel Fuse, Inc.
Rev. RST Jan2019