Littelfuse 263 User Manual

Axial Lead & Cartridge Fuses

PICO® ll > Very Fast-Acting > 263 Series

263 Series, PICO® II 250 Volt, Very Fast-Acting Fuse

Description

The PICO
axial leaded fuse that achieves a 250V rating in a small
package.

Features

®

II 263 Series Fuse is a specially designed

PS

E

Agency Approvals

Agency Agency File Number Ampere Range

E10480 62mA - 5A

PS

E

JET 1896-31007-1001 1A - 5A

LR 29862 125mA - 5A

Additional Information

Datasheet

Resources

Samples

Electrical Characteristics

• 250Vrating

• Veryfast–acting

• Smallsize

• Widerangeofcurrent

rating available (62mA to
5A)

• RoHScompliant&

Halogen-free

• Wideoperating

temperature range

• Lowtemperature
de-rating

Applications

• Lightingsystem

• Ofceautomation

• Powersupply

• LCD/PDPTV

• LCDmonitor

• Audio/Videosystem

• Medicalequipment

Electrical Characteristics

% of Ampere

Rating

100% 4 Hours, Min.

200% 1 Second, Max.

300% 0.1 Second, Max.

Opening Time

machines

Ampere

Rating

(A)

0.062 .062 250

0.125 .125 250 1.75 0.00251 0.3 x x

0.250 .250 250 0.715 0.0165 0.235 x x

0.375 .375 250 0.391 0.0444 0.195 x x

0.500 .500 250 0.332 0.084 0.302 x x

0.750 .750 250 0.150 0.0411 0.176 x x

1. 0 0 0 01. 250 0.105 0.087 0.165 x x x

1.50 01. 5 250 0.0635 0.398 0.148 x x x

2.00 002. 250 0.0444 0.74 0.137 x x x

2.50 02.5 250 0.0340 1.197 0.128 x x x

3.00 003. 250 0.0274 1.77 0.1225 x x x

3.50 03.5 250 0.0224 2.33 0.1175 x x x

4.00 004. 250 0.0193 3.08 0.1125 x x x

5.00 005. 250 0.0145 5.55 0.1065 x x x

Amp Code

Max

Voltage

Rating

(V)

Interrupting

Rating

50 amperes

at 250 VAC

PSE: 100
amperes

at 125 VAC.

Nominal Cold

Resistance

(Ohms)

5.50 0.000192 0.74 x

Nominal

Melting

2

t (A2 sec)

I

Nom

Voltage Drop

(mV)

Agency Approvals

PS

E

Specifications are subject to change without notice.

© 2013 Littelfuse, Inc.

Revised: 12/19/13

Axial Lead & Cartridge Fuses

PICO® ll > Very Fast-Acting > 263 Series

Temperature Rerating Curve

Note:

1. Derating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.

Soldering Parameters

Recommended Process Parameters:

Wave Parameter Lead-Free Recommendation

Preheat:

(Depends on Flux Activation Temperature)

Temperature Minimum:
Temperature Maximum:
Preheat Time: 60-180 seconds

Solder Pot Temperature:
Solder Dwell Time: 2-5 seconds

(Typical Industry Recommendation)

100

° C

150

° C

260

° C Maximum

Average Time Current Curves

1/16A

1/8A

1/4A

3/8A

1/2A

100

10

1

TIME IN SECONDS

0.1

0.01

0.001

0.05 0.1 110 100

3/4A1A1 1/2A2A2 1/2A3A3 1/2A4A5A

CURRENT IN AMPERES

Recommended Hand-Solder Parameters:

Solder Iron Temperature: 350° C +/- 5°C
Heating Time: 5 seconds max.

Note: These devices are not recommended for IR or
Convection Reflow process.

© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13