Littelfuse 473 Series Manual de usuario descargar pdf (Pagina 2)

Speciﬁcations are subject to change without notice.

Revised: 12/19/13

Axial Lead & Cartridge Fuses

PICO

ll > Slo-Blo

> 473 Series

Average Time Current Curves

1000

100

0.1

0.01

10001001010.1

.375A

.50A

.75A

1.0A

1.5A

2.0A

2.5A

3.0A

3.5A

4.0A

5.0A

7.0A

TIME IN SECONDS

CURRENT IN AMPERES

Temperature Rerating Curve

Soldering Parameters

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:

Note:

1. Derating depicted in this curve is in addition to the standard derating of 25% for

continuous operation.

1 2 3

473 Series, PICO 1
II, Slo-Blo 1
ll > Slo-Blo 2
> 473 Series 2

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Littelfuse 473 Series Manual de usuario Pagina 2

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