Littelfuse 372 User Manual

Radial Lead Fuses

TR5® > Time-Lag > 372 Series

372 Series, TR5®, Time-Lag Fuse

Description

The 372 Series are TR5®, time-Lag type, 250V rated fuses,
that are designed in accordance to IEC 60127-3.

Features

Agency Approvals

Agency Agency File Number Ampere Range

5007679-1170-0003/82447 50mA - 4A

5007679-1170-0004/82452 5A - 6.3A

JET1896-31007-2002 1A - 5A

10102 53 50mA - 6.3A

E67006 40mA - 6.3A

SU05024-7010
SU05024-7011
SU05024-7006
SU05024-7007
SU05024-7008
SU05024-7009
SU05024-7012

CQC07012021162 5A - 6.3A

50mA - 100mA

125mA - 800mA

1A - 2.5A

3.15A
4A
5A

6.3A

• Lead-free

• ReducedPCBspace

requirements

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

• Shocksafecasing

• Vibrationresistant

• Halogenfree

• Availablefrom40mA

to 6.3A

• Internationallyapproved

• Lowinternalresistance

Applications

• BatteryChargers

• Consumerelectronics

• Powersupplies

• IndustrialControllers

Electrical Characteristics

% of Ampere

Rating

150% 1 Hour, Min.

210% 2 Minutes, Max.

275% 400 ms, Min. ; 10 Sec., Max.

400% 150 ms, Min. ; 3 Sec., Max.

1000% 20 ms, Min. ; 150 ms, Max.

Opening Time

2007010207240346 40mA - 4A

Additional Information

Datasheet

Resources

Specifications are subject to change without notice.

Samples

© 2013 Littelfuse, Inc.

Revised: 12/19/13

Radial Lead Fuses

08

TR5® > Time-Lag > 372 Series

Electrical Characteristics

Power

Dissipation

1.5×I

N

max. (mW)

min. (A

Amp

Code

Rated

Current

Voltage

Rating

0040 40mA 250V

Breaking Capacity

Voltage

Drop

1.0×I

max.

N

(mV)

900 90 0.009
0050 50mA 250V 500 70 0.01
0063 63mA 250V 400 80 0.02
0080 80mA 250V 370 100 0.023
0100 100mA 250V 300 110 0.047
0125 125mA 250V 260 120 0.066
0160 160mA 250V 200 130 0.14
0200 200mA 250V 170 140 0.20
0250 250mA 250V 150 150 0.28
0315 315mA 250V 140 160 0.36
0400 400mA 250V 130 170 0.9

35A/250VAC

50-60 Hz cos ϕ = 1.0

1

0500 500mA 250V 125 180 1.3
0630 630mA 250V 120 200 2.5
0800 800mA 250V 110 220 3.8
110 0 1.00A 250V 110 360 5.5
112 5 1.25A 250V 95 450 9
116 0 1.60A 250V 95 450 14
1200 2.00A 250V 85 600 23
1250 2.50A 250V 80 700 35
1315 3.15A 250V 80 110 0 60
1400 4.00A 250V 40A / 250 VAC 75 1200 95
1500 5.00A 250V
1630 6.30A

1 Per UL, approved breaking capacity is 50 A at 250 V.
* Conducting path min. 0.2 mm
G = Expert Report
Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand.

*

250V 58 1250 105

2

50A / 250 VAC

80 1300 94

Melting
Integral

10×I

N

2

Agency Approvals

s)

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 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
X X X X X X
X X X X X X
G X X X CQC X

G X X CQC X

140

120

100

80

60

40

PERCENT OF RATING

20

0

-40-20 020406

23°C

AMBIENTTEM PERATURE (°C)

Average Time Current CurvesTemperature Rerating Curve

0.063A

0.080A

0.050A

0.100A

100000

10000

1000

100

0

10

TIME IN SECONDS

0.100

0.010

0.001

0.040A

1

0.100 1 10 1000.02

0.500A

0.800A

0.250A

0.315A

0.400A

1.00A

0.630A

0.125A

0.160A

0.200A

CURRENT IN AMPERES

1.25A

1.60A

2.00A

2.50A

3.15A

4.00A

5.00A

6.30A

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

Radial Lead Fuses

300

240

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

∅ 8.5

TR5® > Time-Lag > 372 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

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

Solderability

Soldering Heat
Resistance

Operating
Temperature

Climatic Category

Stock Conditions

Vibration
Resistance

Base/Cap: Brown Thermoplastic
Polyamide PA 6.6, UL 94 V-0
Round Pins: Copper, Tin-plated

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

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

-40ºC to +85ºC (consider de-rating)

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

+10ºC to +60ºC
RH ≤ 75% yearly average, without dew,
maximum value for 30 days-95%

24 cycles at 15 min. each
(EN 60068-2-6)
10 - 60 Hz at 0.75 mm amplitude
60 - 2000 Hz at 10G’s acceleration

Packaging

Packaging

Option

Packaging

Specification

Quantity

372 Series

Tape &

Ammopack

Short Leads N/A 1,000 0411 N/A

N/A 1,000 0001 N/A

Short Leads N/A 200 0431 N/A

3.3mm
Leads

N/A 1,000 0511 N/A

Quantity &
Packaging

Code

Taping

Width

Dimensions

max. 8L

∅ 0.6

0.5 min

5.08
1 +0.1

Long Leads (L=18.8mm)
Short Leads (L=4.3mm)

Part Numbering System

0001372 xxxx

Series

Amp Code

Refer to Amp Code column of
Electrical Characteristics Table

Packaging Code

0001 Tape/Ammopack (1,000 pcs.)
0411 Short Leads - Bulk (1,000 pcs.)
0431 Short Leads - Bulk (200 pcs.)
0511 3.3 mm Leads - Bulk (1000 pcs.)

Specifications are subject to change without notice.

© 2013 Littelfuse, Inc.

Revised: 12/19/13