Surface Mount Fuses
FLAT-PAK® Slo-Blo® Fuse > 203 Series
203 Series Fuse
Description
Fast-Acting and Slo-Blo® Fuse versions of the Flat-Pak®
Fuse designs are available. Both designs are available
in either a gull-wing surface mount package or a DIP
configuration for through-hole mounting. These fuse
designs feature a 250 VAC rating in a low profile,
rectangular package.
Agency Approvals
AGENCY
Additional Information
AGENCY FILE
NUMBER
AMPERE RANGE
E10480
0.250A - 5A
29862
0.250A - 5A
Datasheet
Samples
Resources
Electrical Characteristics for Series
% of Ampere
Rating
Opening Time
100%
4 hours, Minimum
200%
1 second, Min; 30 seconds Max.
Electrical Specifications by Item
Ampere
Rating
(A)
Amp Code
Max
Voltage
Rating
(V)
0.25
.250
0.50
0.75
1.00
001.
250
0.0755
0.328
x
x
1.50
01.5
250
0.0399
0.850
x
x
2.00
002.
250
0.0337
1.70
x
x
2.50
02.5
250
0.0243
2.87
x
x
3.00
003.
250
0.0197
4.40
x
x
Agency Approvals
Nominal Cold
Resistance
(Ohms)
Nominal Melting
I2t (A2sec)
250
1.320
0.0126
x
x
.500
250
0.433
0.112
x
x
.750
250
0.158
0.462
x
x
Interrupting
Rating
50A@250VAC
4.00
004.
250
0.0148
11.66
x
x
5.00
005.
250
0.0120
14.7
x
x
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Application
testing is
Specifications
are subject
tostrongly
change recommended.
without notice.
Revised: 08/05/15
Surface Mount Fuses
FLAT-PAK® Slo-Blo® Fuse > 203 Series
1/4A
1/2A
3/4A
1A
1 1/2A
2A
2 1/2A
3A
4A
5A
Average Time Current Curves
Temperature Re-rating Curve
100
TIME IN SECONDS
10
1
.1
Note:
1. Rerating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
0.01
Soldering Parameters
Wave Soldering
260°C, 3 seconds max.
Reflow Soldering
215°C, 30 seconds max.
0.001
0.05 0.1
Dimensions
202GFLAT- PAK
LF
F 2A
250 V
F 2A
250 V
PAT 4563666
PAT 4563666
9.45
(.372")
9.45
(.372")
6.35
(.250")
6.35
(.250")
4.19
(.165")
4.19
(.165")
0.08 (.003")
1.40 (.055")
.135"
10.16
(.400")
6o
0.53
(.021")
1.52
(.060")
15.24 (.600")
0.30 (.012")
Materials
Body: Thermoplastic
Terminations: Tin/Lead Plated Copper
Solderability
MIL-STD-202, Method 208.
Cleaning
Board washable in most common solvents.
Operating
Temperature
–55OC to 125OC
17.12 (.674)
Surface Mount Fuses:
Through Hole Fuses:
Series
Series
Amp Code
Amp Code
0203 002. HXG
4.06 (.160)
11.53 (.454)
2.79 (.110)
Recommended Pad Layout
Refer to Amp Code column of
Electrical Characteristics Table
Packaging
Quantity Code
Packaging
Specification
PAT 4563666
Bulk
EIA 481
(IEC60286, part
4.193)
6
9.45
(.372")
500
HXG
6.35
(.250")
URG
(.165")
0.08 (.003")
1.40 (.055")
.135"
Antistatic
10.16
(.400")
Magazine
T 2A
250 V
100
6.35
(.250")
Through Hole Fuses
o
203GFLAT- PAK
Quantity &
Packaging Code
PAT 4563666
–
9.45
(.372")
Quantity
LF
T 2A
250 V
SurfaceLFMount
Fuses
24mm Tape
and Reel
1000
Part Numbering System
SMF Configuration
("Gull Wing" Surface Mount)
DIP Configuration
(Thru-Hole) Mounting
Packaging
Option
203 FLAT- PAK
10
100
CURRENT IN AMPERES
Product Characteristics
202 FLAT- PAK
LF
1
–
100
0.53
(.021")
0.30(.012")
15.24 (.600")
SMF Configuration
("Gull Wing" Surface Mount)
DIP Configuration
(Thru-Hole)
© 2015 Littelfuse,
Inc. Mounting
Specifications are subject to change without notice.
Revised: 08/05/15
2.79 (.110)
17.12(.674)
4.06(.160)
11.53(.454)
4.19
(.165")
1.52
(.060")
H
HXG = 100
URG = 500
0203 002. H
Refer to Amp Code column of
Electrical Characteristics Table
Quantity Code
H = 100