Littelfuse 325SP Series Manual de usuario descargar pdf (Pagina 2)

Speciﬁcations are subject to change without notice.

Revised: 11/13/13

Axial Lead Fuses

3AB > Time Lag > 325SP Series

Amp Code

Ampere

Rating

(A)

Voltage

Rating

(V)

Interrupting

Rating

Nominal Cold

Resistance

(Ohms)

Nominal Melting

t (A

sec)

Agency Approvals

012. 12 250

400A@250Vac

10KA@125Vac

600A@125Vdc

0.0067 129 x x x x x

015. 15 250 0.0050 245 x x x x x

020. 20 250 0.0034 575 x x x x x

Electrical Characteristic Speciﬁcations by Item

Average Time Current Curves

1000

100

0.1

0.01

CURRENT IN AMPERES

TIME IN SECONDS

100 10000.1 10.01

20.0A

15.0A

12.0A

Temperature 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:

(Depends on Flux Activation Temperature)

(Typical Industry Recommendation)

Temperature Minimum:

100

° C

Temperature Maximum:

150

° C

Preheat Time: 60-180 seconds

Solder Pot Temperature:

260

° C Maximum

Solder Dwell Time: 2-5 seconds

Recommended Hand-Solder Parameters:

Solder Iron Temperature: 350° C +/- 5°C

HeatingTime:5secondsmax.

Note: These devices are not recommended for IR or

Convection Reﬂow process.

Recommended Process Parameters:

1 2 3

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Littelfuse 325SP Series Manual de usuario Pagina 2

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