Type RST
Time Lag Radial Lead Micro Fuse Series
RST Series
RoHS 2 Compliant
Description
Sub-miniature, time lag type, 250V rated fuses designed, approved and complied with
IEC 60127-3, standard sheet 4.
Features
- Time lag (250V AC)
- Meet IEC standard 60127-3, sheet 4
- Wide operating temperature range
- Bulk and Tape & Reel packing available
- RoHS 2 compliant
- Halogen Free
- Leadfree
Applications
Provide individual protection for components or internal circuits.
- Power supplies
- Battery chargers
- Consumer electronics
- Adapter
LEAD FREE =
- Industrial controllers
HALOGEN FREE =
Physical Specifications
Materials
Base and Cover : Black thermoplastic, UL 94-V0
Pins : 100% Matte Tin Plated Copper
On Fuse :
"bel", "T" ,"Current Rating", "250V" & "Appropriate Safety Logos"
Marking
On Label :
"bel", "RST", "Current Rating", "Voltage Rating", "Interrupting Rating",
"Appropriate Safety Logos" and "
", "
"(China RoHS compliant).
Electrical Characteristics
(IEC-127-3 STANDARD SHEET 4)
Safety Agency Approvals
Rated
Current
1.5In 2.1In
Min Max
2.75In
Min Max
4In
Min Max
10In
Min
Max
Safety
Agency
Safety Agency
Certificate
1808557
40011144
40028321
E20624
JET 1037-31007-100 1
2004010207111444
Voltage Rating
(V)
Ampere Range / Volt
@ I.R. ability*
80mA-5A/250V AC @ 35A
or 10 In whichever is greater.
80mA-6.3A/250V AC @ 35A
or 10 In whichever is greater.
80mA-6.3A/277V AC @ 100A
1A-5A 250V AC @ 100A
80mA-5A/250V AC @ 35A
or 10 In whichever is greater.
80mA to
1
2
400 10 150
3
20
150
6.3A
hour min. ms sec ms sec ms
ms
inclusive
In clause 9.2, the test voltage for RST ratings from 80mA
to 6.3A is 63VDC.
80mA-6.3A/
250V AC
*I.R.= Interrupting Rating = Short Circuit Rating(Amps)
Specifications subject to change without notice
belfuse.com/circuit-protection
Type RST
Environmental Specifications
Shock Resistance
Vibration Resistance
Salt Spray Resistance
Solderability
Resistance to solder Heat
Moisture Resistance
Operating Temperature
MIL-STD-202G, Method 213B, Test Condition 1
(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
MIL-STD-202G, Method 210F, Test Condition C. Top Side. (260℃,20 sec)
MIL-STD-202G, Method 202G, Method 106G
-55℃ to +125℃
2
/
4
Electrical Specifications
Catalog
Number
Ampere
Rating
Typical
Cold
Resistance
(ohms)
3.5
2.3
1.6
1.1
Volt-drop
@100% In
(Volt) max.
0.398
0.329
0.295
0.252
Voltage and
Interrupting
Ratings
Melting I²T
<10 mSec
(A² Sec)
0.01
0.02
0.04
0.07
0.12
0.38
0.60
0.9
Melting I²T
@10 In
(A² Sec)
0.01
0.02
0.04
0.06
0.11
0.41
0.66
1.0
1.7
2.6
4.2
7
11
17
27
43
69
110
175
281
Maximum
Power
Dissipation
(W)
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
Agency Approvals
RST 80
RST 100
RST 125
RST 160
80mA
100mA
125mA
160mA
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 200
RST 250
RST 315
RST 400
RST 500
RST 630
RST 800
RST 1
RST 1.25
RST 1.6
RST 2
RST 2.5
RST 3.15
RST 4
RST 5
RST 6.3
200mA
250mA
315mA
400mA
500mA
630mA
800mA
1A
1.25A
1.6A
2A
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
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
See Table of
Safety
Approvals on
Page 1 for
Voltage and
associated
Interrupting
Ratings
1.5
2.4
3.7
6
9
15
23
37
58
92
145
230
2.5A
3.15A
4A
5A
6.3A
Consult manufacturer for other ratings
Specifications subject to change without notice
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302 USA
© 2018 Bel Fuse, Inc.
+1 201.432.0463
Bel.US.CS@belf.com
belfuse.com/circuit-protection
Rev. RST Nov2018
Type RST
Temperature Derating Curve
Average Time Current Curve
3
/
4
Soldering Parameters
Lead-free Wave Soldering Profile
Wave Soldering Parameter
Average ramp-up rate
Heating rate during preheat
Final preheat temperature
Peak temperature Tp
Time within +0℃ / -5℃ of actual
peak temperature
Ramp-down rate
200℃ / second
typical 1 - 2℃ / second
Max 4℃ / second
within 125℃ of soldering
temperature
260℃
10 seconds
5℃ / second max.
Specifications subject to change without notice
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302 USA
© 2018 Bel Fuse, Inc.
+1 201.432.0463
Bel.US.CS@belf.com
belfuse.com/circuit-protection
Rev. RST Nov2018
Type RST
Fuse FGNO Explanation
0697 - [XXXX] X XX
0697=RST; [XXXX]=Ampere Rating; XX=See Ordering Information as below
Fraction
8/100
1/10
1/8
Decimal
0.080
.100
.125
.160
2/10
1/4
.200
.250
.315
4/10
1/2
.400
.500
.630
8/10
.800
Milliamps
80
100
125
160
200
250
315
400
500
630
800
Bel FGNO[XXXX]
0080
0100
0125
0160
0200
0250
0315
0400
0500
0630
0800
2-1/2
1-1/4
Fraction
Decimal
1.0
1.25
1.60
2.0
2.5
3.15
4.0
5.0
6.3
Amps
1
1.25
1.6
2
2.5
3.15
4
5
6.3
4
/
4
Bel FGNO[XXXX]
1000
1250
1600
2000
2500
3150
4000
5000
6300
Mechanical Dimensions
Ordering Information
Packaging
Packaging Option
Bulk / bag, 1000 / box
12.7 mm pitch, On Tape / box
Packaging Specification
N/A
IEC-286-2
Quantity
1000
1000
Packaging Code
01 , 05
02
Specifications subject to change without notice
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302 USA
© 2018 Bel Fuse, Inc.
+1 201.432.0463
Bel.US.CS@belf.com
belfuse.com/circuit-protection
Rev. RST Nov2018
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Bel
:
RST 500 AMMO RST 6.3 AMMO RST 3.15 AMMO RST 6.3 RST 500 RST 800 RST 80 RST 200 RST 100 RST
125 AMMO RST 1 RST 250 RST 2.5 RST 315 RST 800 AMMO RST 80 AMMO RST 200 AMMO RST 160 AMMO
RST 400 RST 1.25 RST 160 RST 4 AMMO RST 2.5 AMMO RST 1 AMMO RST 3.15 RST 100 AMMO RST 4
RST 125 RST 315 AMMO RST 630 RST 1.6 RST 2 AMMO RST 5 RST 250 AMMO RST 1.25 AMMO RST 2
RST6.3-bulk-short RST5-bulk-short RST315-bulk-short RST100-bulk-short RST4-bulk-short RST400-bulk-short
RST630-bulk-short RST630-bulk RST500-bulk-short RST400AMMO RST2-bulk-short RST250-bulk-short RST125-
bulk-short RST800-bulk-short RST1-bulk-short RST1.6AMMO RST1.6-bulk-short RST200-bulk-short RST160-bulk-
short RST2.5-bulk-short RST80-bulk-short RST3.15-bulk-short RST1.25-bulk-short RST 5-AMMO
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