Littelfuse 374 User Manual

Radial Lead Fuses

TR5® > Time Lag > 374 Series

374 Series, TR5®, Time-Lag Fuse

Description

Agency Approvals

Agency Agency File Number Ampere Range

File number:

E 67006

Certification:

51378

File number:

E 67006

50mA - 6.3A

50mA - 6.3A

8A - 10A

The TR5

®

374 Series are time–Lag 250V rated fuses, that

are designed in accordance to UL 248 –14.

Features

• Lead–free

• ReducedPCBspace

requirements

• Directsolderableor
plug–in versions

• Shocksafecasing

• Vibrationresistant

• Halogenfree

• Availablefrom50mA

to 10A

• Internationallyapproved

• Lowinternalresistance

Applications

• BatteryChargers

• ConsumerElectronics

• Powersupplies

• IndustrialControllers

Electrical Characteristics

% of Ampere

Rating

200% 60 Seconds,

Opening Time

Additional Information

Datasheet

Resources

Samples

Specifications are subject to change without notice.

© 2013 Littelfuse, Inc.

Revised: 12/19/13

Radial Lead Fuses

®

08

TR5® > Time Lag > 374 Series

Electrical Characteristics

Amp

Code

Rated

Current

Voltage

Rating

0050 50mA 250V

Breaking Capacity

Voltage

Drop

1.0×I

N

max. (mV)

Power

Dissipation

1.0×I

N

max. (mW)

900 45 0.0056 x x

Melting
Integral

10×I

min. (A

N

2

s)

0063 63mA 250V 800 50 0.009 x x
0080 80mA 250V 700 55 0.014 x x

0100 100mA 250V 600 60 0.025 x x
0125 125mA 250V 550 70 0.044 x x

0160 160mA 250V 480 80 0.058 x x
0200 200mA 250V 390 80 0.1 x x
0250 250mA 250V 350 90 0.17 x x
0315 315mA 250V 300 95 0.26 x x
0400 400mA 250V 250 100 0.32 x x
0500 500mA 250V 220 110 0.6 x x
0630 630mA 250V 210 135 0.75 x x
0800 800mA 250V 160 130 0.98 x x

110 0 1.00A 250V 155 155 2.1 x x

50 A / 250 VAC

50-60 Hz

cos ϕ = 1.0

112 5 1.25A 250V 145 185 3.2 x x

116 0 1.60A 250V 130 210 4.5 x x
1200 2.00A 250V 125 250 7. 5 x x
1250 2.50A 250V 120 300 14 x x
1315 3.15A 250V 110 350 22 x x
1400 4.00A 250V 10 0 400 36 x x
1500 5.00A 250V 95 475 59 x x
1630 6.30A 250V 90 570 110 x x
1800 8.00A
210 0 10.00A

Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand.

1

250V 80 1000 150 x

1

250V 90 1250 280 x

Agency Approvals

Temperature Rerating Curve

140

120

100

80

60

40

PERCENT OF RATING

20

0

-40-20 020406

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

23°C

0

AMBIENTTEMPERATURE (°C)

Average Time Current Curves

0.080A

0.100A

0.160A

0.200A

0.250A

0.315A

0.400A

100000

10000

1000

100

10

TIME IN SECONDS

1

0.100

0.010

0.001

0.050A

0.100 1 10 1000.02

0.063A

0.125A

1.00A

0.500A

0.630A

0.800A

CURRENT IN AMPERES

2.00A

2.50A

5.00A

6.30A

8.00A

1.25A

1.60A

10.00A

3.15A

4.00A

Radial Lead Fuses

∅ 8.5

300

240

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

TR5® > Time Lag > 374 Series

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

Dwell Time

160

170

Cooling Time

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:

260

° C Maximum

Solder Dwell Time: 2-5 seconds

Recommended Hand-Solder Parameters:

180

190

200

210

220

230

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

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

Product Characteristics

Materials

Polyamide PA 6.6, UL 94 V-0
Round Pins: Copper, Tin-plated

Lead Pull Strength 10 N (EN 60068-2-21)

Base/Cap: Brown Thermoplastic

Solderability

Soldering Heat
Resistance

260ºC, ≤ 3s. (Wave)
350ºC, ≤ 1s. (Soldering Iron)

260ºC, 10s. (IEC 60068-2-20)
350ºC, 3s. (Soldering Iron)

Dimensions

Operating Temperature -40ºC to +85ºC (consider de-rating)

Climatic Category

-40ºC/+85ºC/21 days
(EN 60068-1,-2-1,-2-2,-2-78)

+10ºC to +60ºC

Stock Conditions

RH ≤ 75% yearly average, without
dew, maximum value for 30 days­95%

24 cycles at 15 min. each

Vibration Resistance

(EN 60068-2-6)
10 - 60 Hz at 0.75 mm amplitude
60 - 2000 Hz at 10G’s acceleration

Part Numbering System

0000374 xxxx

max. 8L

∅ 0.6

0.5 min

5.08
1 +0.1

Holes in PCB

Long Leads (L=18.8mm)

Short Leads (L=4.3mm)

Series

Amp Code

Refer to Amp Code column of
Electrical Characteristics Table

Packaging Code

0000 Tape/Ammopack (1,000 pcs.)
0410 Short Leads - Bulk (1,000 pcs.)
0430 Short Leads - Bulk (200 pcs.)

Packaging

Packaging Option Packaging Specification Quantity

374 Series

Tape & Ammopack N/A 1,000 0000 N/A

Short Leads N/A 1,000 0410 N/A
Short Leads N/A 200 0430 N/A

Quantity &

Packaging Code

Specifications are subject to change without notice.

Taping Width

© 2013 Littelfuse, Inc.

Revised: 12/19/13