203 Datasheet, PDF (1/1 Pages) Littelfuse – Surface Mount Fuses - Subminiature Surface Mount & Dip Types

Surface Mount Fuses
Subminiature Surface Mount & Dip Types
FLAT-PAK^® Slo-Blo^® Fuse 203 Series
®
®
• For new designs please use the 465 Series, NANO^2® 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
100%
200%
Opening
Time
4 hours, Minimum
1 second, Minimum
30 seconds, Maximum
AGENCY APPROVALS: Recognized under the Components
Program of Underwriters Laboratories and Certified by CSA.
AGENCY FILE NUMBERS: UL E10480, CSA LR 29862.
INTERRUPTING RATING:
50 amperes at 250 VAC.
ENVIRONMENTAL SPECIFICATION:
Operating Temperature: –55°C to 125°C.
PHYSICAL SPECIFICATIONS:
Materials: Body: Thermoplastic
Terminations: Tin/Lead Plated Copper
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.
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
Catalog¹
Number
Ampere Voltage
Rating Rating
Nominal
Resistance
Cold Ohms
Nominal
Melting I²t
A² Sec.
203.250 203.250G 1/4
250
203.500 203.500G 1/2
250
203.750 203.750G 3/4
250
203 001 203 001G
1
250
203 01.5 203 01.5G 1¹/2
250
1.36
0.433
0.158
0.0755
0.0390
0.0126
0.112
0.327
0.328
0.850
203 002 203 002G
2
250
203 02.5 203 02.5G 2¹/2
250
203 003 203 003G
3
250
203 004 203 004G
4
250
203 005 203 005G
5
250
0.0345
0.0237
0.0197
0.0148
0.0124
1.70
2.87
4.40
8.75
14.7
1_{SMF fuse marking includes the letter “G” next to the series number indicating “Gull-Wing”.}
Reference Dimensions:
.135"
6^o
202 FLAT- PAK
LF
F 2A
250 V
PAT 4563666
9.45
(.372")
6.35
(.250")
202GFLAT- PAK
LF
F 2A
250 V
PAT 4563666
9.45
(.372")
6.35
(.250")
10.16
(.400")
0.30 (.012")
DIP Configuration
(Thru-Hole) Mounting
4.19
(.165")
0.53
(.021")
0.08 (.003")
1.40 (.055")
15.24 (.600")
SMF Configuration
("Gull Wing" Surface Mount)
17.12 (.674)
4.06 (.160)
2.79 (.110)
11.53 (.454)
Recommended Pad Layout
4.19
(.165")
1.52
(.060")
Average Time Current Curves
10
100
10
1
.1
0.01
0.001
0.05 0.1
www.littelfuse.com
1
10
100
CURRENT IN AMPERES
1000
385