Surface Mount Fuses
Subminiature Surface Mount & Dip Types
FLAT-PAK
®
Slo-Blo
®
Fuse
203 Series
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.
®
®
ELECTRICAL CHARACTERISTICS:
% of Ampere
Rating
100%
200%
Opening
Time
4 hours,
Minimum
1 second,
Minimum
30 seconds,
Maximum
202 FLAT- PAK
202GFLAT- PAK
Reference Dimensions:
F 2A
250 V
9.45
(.372")
AGENCY APPROVALS:
Recognized under the Components
Program of Underwriters Laboratories and Certified by CSA.
F
L
F
L
6.35
(.250")
4.19
(.165")
F 2A
250 V
9.45
(.372")
PAT 4563666
PAT 4563666
AGENCY FILE NUMBERS:
UL E10480, CSA LR 29862.
INTERRUPTING RATING:
50 amperes at 250 VAC.
6.35
(.250")
4.19
(.165")
ENVIRONMENTAL SPECIFICATION:
Operating Temperature:
–55°C to 125°C.
PHYSICAL SPECIFICATIONS:
Materials:
Body: Thermoplastic
Terminations: Tin/Lead Plated Copper
.135"
0.08 (.003")
1.40 (.055")
10.16
(.400")
0.30 (.012")
0.53
(.021")
15.24 (.600")
1.52
(.060")
6
o
DIP Configuration
(Thru-Hole) Mounting
SMF Configuration
("Gull Wing" Surface Mount)
17.12 (.674)
4.06 (.160)
2.79 (.110)
11.53 (.454)
Soldering Parameters:
Wave Solder — 260°C, 3 seconds maximum.
Reflow Solder — 215°C, 30 seconds maximum.
Solderability:
MIL-STD-202, Method 208.
Cleaning:
Board washable in most common solvents.
Recommended Pad Layout
Average Time Current Curves
1/2A
3/4A
1A
1 1/2A
2A
2 1/2A
3A
4A
5A
1
10
100
CURRENT IN AMPERES
1/4A
100
10
PACKAGING SPECIFICATIONS:
SMF Fuses — 24mm Tape and Reel per EIA-RS481-2
(IEC 286, part 3); 500 per reel.
DIP Fuses — Antistatic magazine, 100 per magazine.
PATENTED
ORDERING INFORMATION
Catalog
Number
203.250
203.500
203.750
203
001
203
01.5
203
002
203
02.5
203
003
203
004
203
005
1
Catalog
1
Number
203.250G
203.500G
203.750G
203
001G
203
01.5G
203
002G
203
02.5G
203
003G
203
004G
203
005G
Ampere
Rating
1/4
1/2
3/4
1
1
1
/
2
2
2
1
/
2
3
4
5
Voltage
Rating
250
250
250
250
250
250
250
250
250
250
Nominal
Resistance
Cold Ohms
1.36
0.433
0.158
0.0755
0.0390
0.0345
0.0237
0.0197
0.0148
0.0124
Nominal
Melting I
2
t
A
2
Sec.
0.0126
0.112
0.327
0.328
0.850
1.70
2.87
4.40
8.75
14.7
TIME IN SECONDS
1
.1
SMF fuse marking includes the letter “G” next to the series number indicating “Gull-Wing”.
0.01
0.001
0.05 0.1
1000
388
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