Littelfuse 267 User Manual

Axial Lead & Cartridge Fuses

QPL

QPL

QP

L

PICO® > Very Fast Acting > 265/266/267 Series

265/266/267 Series, PICO®, Very Fast-Acting Fuse (High-Reliability)

Description

The 265/266/267 Series are high–reliability PICO
Fuses, that are very fast-acting, with an insulating
sleeve. These fuses provide supplemental protection

in end-use equipment to provide protection for
components or internal circuits. They are not
suitable for branch or feeder circuit use. The Military

version of the 265 Series (except 1/16 ampere rating)
is available in FM08A on QPL for MIL-PRF-23419/8. To
order, change 265 to 267.

Features

®

Agency Approvals

Agency Agency File Number Ampere Range

E10480 062mA - 15A

LR 29862 062mA - 10A

FM08A

062mA - 10A

Electrical Characteristics

Ampere

Rating

(A)

0.062

0.125

0.250

0.375

0.500

0.750

1. 0 0

1.50

2.00

2.50

3.00

4.00

5.00

7. 0 0

10.0

15.0

Amp Code

.062 125
.125 125
.250 125
.375 125
.500 125
.750 125
0 01. 125

01. 5 125

002. 125

02.5 125

003. 125

004. 125

005. 125
0 0 7. 125

010. 125

015. 32

Max

Voltage Rating

(V)

300 amperes at rated voltage V

50 amperes at rated voltage V

Interrupting

Rating

• Militarygradeavailable

• RoHScompliant

• Availablefrom62mAto

15A

• Availableinaxialand

radial leaded

•Availableinminiature

and subminiature
formats

Electrical Characteristics

% of Ampere

Rating

100% 1/16–15 4 Hours, Min.

200%

Nominal Cold

Resistance (Ohms)

7.0000

2.1000

0.7100

0.4200

0.2800

0.1700

0.1250

DC

AC

0.0800

0.0550

0.0420

0.03515

0.0230

0.0140

0. 010 0

0.00645

0.0040

Ampere Rating Opening Time

1/16–7 1 Second, Max.

10 3 Second, Max.

15 10 Second, Max.

Agency Approvals

X X X

X X X

X X X

X X X

X X X

X X X

X X X

X X X

X X X

X X X

X X X

X X X

X X X

X X X

X X X

X X X

Specifications are subject to change without notice.

© 2013 Littelfuse, Inc.

Revised: 12/19/13

Axial Lead & Cartridge Fuses

100

10

1

0.1

0.01

0.001
10

100

1000

0.1

1

TIME IN SECONDS

CURRENT IN AMPERES

1/16A

1/8A

1/4A

3/8A

1/2A

3/4A

1A

1 1/2A

2A

2 1/2A

3A

4A

5A

7A

10A

15A

300

240

Temperature (°C) - Measured on bottom side of board

PICO® > Very Fast Acting > 265/266/267 Series

Temperature Rerating Curve

Note:

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

Average Time Current Curves

Soldering Parameters\

280

260

240

220

200

180

160

140

120

100

80

60

40

20

Time (Seconds)

0

Preheat Time

0

102030405060708090

Recommended Process Parameters:

Wave Parameter Lead-Free Recommendation

Preheat:

(Depends on Flux Activation Temperature)

Temperature Minimum:
Temperature Maximum:

(Typical Industry Recommendation)

100

° C

150

° C

Preheat Time: 60-180 seconds

Solder Pot Temperature:

280

° C Maximum

Solder Dwell Time: 2-5 seconds

Recommended Hand-Solder Parameters:

100

110

120

130

140

150

160

170

180

190

200

210

220

230

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

Dwell Time

Cooling Time

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