Surface Mount Fuses
Subminiature Surface Mount & Dip Types
FLAT-PAK® Slo-Blo® Fuse203 Series
®
®
• For new designs please use the 465 Series, NANO2® 250V UMF Fuse.
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
Opening
Time
100%
4 hours, Minimum
1 second, Minimum
30 seconds, Maximum
Reference Dimensions:
200%
202GFLAT- PAK
202 FLAT- PAK
F 2A
F 2A
250 V
PAT 4563666
AGENCY APPROVALS: Recognized under the Components
Program of Underwriters Laboratories and Certified by CSA.
F
F
L
L
250 V
PAT 4563666
9.45
(.372")
9.45
(.372")
6.35
(.250")
6.35
(.250")
AGENCY FILE NUMBERS: UL E10480, CSA LR 29862.
INTERRUPTING RATING:
4.19
(.165")
4.19
(.165")
50 amperes at 250 VAC.
0.08 (.003")
1.40 (.055")
15.24 (.600")
1.52
(.060")
.135"
10.16
ENVIRONMENTAL SPECIFICATION:
Operating Temperature: –55°C to 125°C.
0.53
(.021")
6o
(.400")
0.30 (.012")
SMF Configuration
("Gull Wing" Surface Mount)
DIP Configuration
(Thru-Hole) Mounting
PHYSICAL SPECIFICATIONS:
Materials: Body: Thermoplastic
Terminations: Tin/Lead Plated Copper
17.12 (.674)
4.06 (.160)
11.53 (.454)
Soldering Parameters:
2.79 (.110)
Recommended Pad Layout
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.
10
Average Time Current Curves
PACKAGING SPECIFICATIONS:
SMF Fuses — 24mm Tape and Reel per EIA-RS481-2
(IEC 286, part 3); 500 per reel.
100
DIP Fuses — Antistatic magazine, 100 per magazine.
PATENTED
10
1
ORDERING INFORMATION
Nominal
Resistance
Cold Ohms
Nominal
Catalog
Number
Catalog1
Number
Ampere Voltage
Rating
Melting I2t
A2 Sec.
Rating
203.250
203.500
203.750
203 001
203 01.5
203.250G
203.500G
203.750G
203 001G
203 01.5G
1/4
1/2
3/4
250
250
250
250
250
1.36
0.0126
0.112
0.327
0.328
0.850
0.433
0.158
0.0755
0.0390
1
1
2
1 /
203 002
203 02.5
203 003
203 004
203 005
203 002G
203 02.5G
203 003G
203 004G
203 005G
2
2 /
3
4
5
250
250
250
250
250
0.0345
0.0237
0.0197
0.0148
0.0124
1.70
2.87
4.40
8.75
14.7
.1
1
2
1 SMF fuse marking includes the letter “G” next to the series number indicating “Gull-Wing”.
0.01
0.001
0.05 0.1
1
10
100
1000
CURRENT IN AMPERES
385
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