Littelfuse 874 Series Bedienungsanleitung PDF herunterladen (Seite 2)

Revised: February 3, 2009

Introduction to Circuit Protection

Transientology

232

Specications are subject to change without notice.

Axial Lead & Cartridge Fuses

3.6 X 10 mm > Fast-Acting > 874 Series

874 Series

Please refer to www.littelfuse.com/series/874.html for current information.

Average Time Current CurvesTemperature Rerating Curve

Soldering Parameters - Wave Soldering

Dwell Time

100

120

140

160

180

200

220

240

260

280

300

100

110

120

130

140

150

160

170

180

190

200

210

220

230

240

Time (Seconds)

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

Cooling Time

Preheat Time

Wave Parameter Lead-Free Recommendation

Preheat:

%FQFOETPO'MVY"DUJWBUJPO5FNQFSBUVSF

5ZQJDBM*OEVTUSZ3FDPNNFOEBUJPO

5FNQFSBUVSF.JOJNVN

100

° $

5FNQFSBUVSF.BYJNVN

150

° $

1SFIFBU5JNF 60-180 seconds

Solder Pot Temperature:

260

° $.BYJNVN

Solder Dwell Time: 2-5 seconds

Recommended Hand-Solder Parameters:

4PMEFS*SPO5FNQFSBUVSF¡$¡$

)FBUJOH5JNFTFDPOETNBY

Note: These devices are not recommended for IR or

Convection Reow process.

Recommended Process Parameters:

0.001

0.01

0.1

100

10 00

00010010111.0

CUR RENT I N AMPS

TIME IN SECONDS

6.5A

4.5A

1.6A

1.5A

.800A

.600A

.750A

.500A

.300A

.250A

.200A

.1 25A

.100A

10A

6. 3A

2.5A

.400A

3.15A

1 2 3

874 Series 1
Transientology 2

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