Littelfuse 399 User Manual

Radial Lead Fuses

TE5® > Time-Lag > 399 Series

399 Series, TE5® Inrush Protector Fuse

Description

The 399 Series are TE5®, time-Lag type, 65V rated
fuses. For Short Circuit Protection of Sensitive Electronic
Components and Assemblies.

Features

Agency Approvals

• ReducedPCBspace

requirements

• Highlydenedcut-off

times

• Lowinternalresistance

• Irreversiblephysical

• Flameresistant

encapsulated casing

• Halogenfree

• Availablefrom125mA

to 4A

separation

Agency Agency File Number Ampere Range

E67006 125mA - 4A

Applications

• ICChipProtection

Additional Information

Datasheet

Resources

Samples

Electrical Characteristics

% of Ampere

Rating

300 20 Seconds, Max.

Opening Time

Electrical Characteristics

Cold

Amp Code

0125 125 mA IP13 65 V
0160 160 mA IP16 65 V 110 0 140 0.2 x

0200 200 mA IP20 65 V 775 155 0.29 x

0250 250 mA IP25 65 V 550 170 0.42 x
0315 315 mA IP32 65 V 330 190 0.62 x

0400 400 mA IP40 65 V 265 220 0.92 x

0500 500 mA IP50 65 V 190 240 1.4 x
0630 630 mA IP63 65 V 130 265 2 x
0800 800 mA IP80 65 V 92 300 3 x
110 0 1.00 A IP100 65 V 65 330 4.3 x
112 5 1.25 A IP125 65 V 47 370 6.5 x
116 0 1.60 A IP160 65 V 33 420 9.8 x
1200 2.00 A IP200 65 V 23 460 14 x
1250 2.50 A IP250 65 V 17 520 20 x
1315 3.15 A IP315 65 V 13 580 40 x
1400 4.00 A IP400 65 V 10 650 75 x

* Physical Marking on top of the device
Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand.

Rated

Current

Marking

Code*

Voltage

Rating

Breaking Capacity

50A / 65 VAC/DC

50-60 Hz cosϕ=1.0

Resistance

0.1×I

N

typ. (mΩ)

1600 125 0.13 x

Power

Disspation

1.0×I

max.

N

(mW)

Melting
Integral

10×I

typ. (A

N

2

s)

Agency

Approvals

Specifications are subject to change without notice.

© 2013 Littelfuse, Inc.

Revised: 12/19/13

Radial Lead Fuses

300

240

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

08

TE5® > Time-Lag > 399 Series

Temperature Rerating Curve

140

120

100

80

60

40

PERCENT OF RATING

20

0

-40-20 020406

23°C

AMBIENTTEMPERATURE (°C)

Average Time Current Curves

0.125A

0.160A

0.250A

0.400A

0.500A

0.200A

0.315A

0.630A

100000

10000

1000

100

0

10

TIME IN SECONDS

1

0.100

0.010

0.001

0.800A

1 10 100 10000.20

4.00A

1.60A

2.50A

2.00A

3.15A

1.00A

1.25A

CURRENT IN AMPERES

Soldering Parameters - Wave Soldering

280

260

240

220

200

180

160

140

120

100

80

60

40

20

0

0

102030405060708090

Time (Seconds)

Preheat Time

100

110

120

130

140

150

160

170

180

190

200

210

220

Dwell Time

Cooling Time

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

230

Recommended Hand-Solder Parameters:

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

(Typical Industry Recommendation)

100

° C

150

° C

260

° C Maximum

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