Littelfuse 807 Series Bedienungsanleitung PDF herunterladen (Seite 2)

Introduction to Circuit Protection

Transientology

Speciﬁcations are subject to change without notice.

Radial Lead Fuses

Please refer to www.littelfuse.com/series/807.html for current information.

TE-UMF 807 Series

TE7 > Time Lag > 807 Series

Average Time Current CurvesTemperature De-rating 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:

i«i`ÃÊÊÕÝÊVÌÛ>ÌÊ/i«iÀ>ÌÕÀi®

/Þ«V>Ê`ÕÃÌÀÞÊ,iVi`>Ì®

Temperature Minimum:

100

˚C

ÊÊÊÊ/i«iÀ>ÌÕÀiÊ>ÝÕ\

150

˚C

ÊÊÊÊ*Àii>ÌÊ/i\ 60-180 seconds

Solder Pot Temperature:

260

˚Ê>ÝÕ

Solder Dwell Time:

2-5 seconds

Recommended Hand-Solder Parameters:

Solder Iron Temperature: 350˚C ± 5˚C

i>Ì}Ê/i\ÊÊxÊÃiV`ÃÊ>ÝÕ

Note: These devices are not recommended for IR or

Convection Reﬂow Process.

Recommended Process Parameters:

20%

40%

60%

80%

100%

120%

140%

-55 -30 -5 20 45 70 95 120

AMBIENT TEMPERATURE (°C)

PERCENT OF RATING

807 DE-RATING CURVE

CURRENT [A]

Blowtime [sec].

0.1 1 10 100 1000

0.8A

1.25A

1.6A

2.5A

3.15A

6.3A

0.010

0.001

0.100

1.000

10.000

100.000

1000.000

1 2 3

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