Littelfuse PMT3(310) Series Manual de usuario descargar pdf (Pagina 2)

Gas Discharge Tube (GDT) Products

Revised: June 27, 2011

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com for current information.

Customer should verify actual device performance in their speciﬁc applications.

PMT3(310) Series

Product Characteristics

Materials

%VMM5JO1MBUF.JDSPOT

XJUI$FSBNJD*OTVMBUPS

Product Marking

-JUUFMGVTFA-'NBSLJOH7PMUBHFBOE

date code.

Glow to arc

transition current

_"NQ

Glow Voltage

_7PMUT

Reﬂow Condition Pb – Free assembly

Pre Heat

- Temperature Min (T

s(min)

) ¡$

- Temperature Max (T

s(max)

) ¡$

- Time (Min to Max) (t

) oTFDT

Average ramp up rate (Liquidus Temp

) to peak

¡$TFDPOENBY

S(max)

to T

- Ramp-up Rate ¡$TFDPOENBY

Reﬂow

- Temperature (T

) (Liquidus) ¡$

- Temperature (t

) oTFDPOET

Peak Temperature (T

) 



¡$

Time within 5°C of actual peak

Temperature (t

)

10 – 30 seconds

Ramp-down Rate ¡$TFDPOENBY

Time 25°C to peak Temperature (T

) NJOVUFT.BY

Do not exceed ¡$

Soldering Parameters - Reﬂow Soldering (Surface Mount Devices)

Time

Temperature

S(max)

S(min)

time to peak temperature

(t 25ºC to peak)

Ramp-down

Ramp-up

Preheat

Critical Zone

to T

Soldering Parameters - Wave Soldering (Thru-Hole Devices)

Soldering Parameters - Hand 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



¡$

1SFIFBU5JNF TFDPOET

Solder Pot Temperature:



¡$.BYJNVN

Solder Dwell Time: TFDPOET

Recommended Process Parameters:

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

)FBUJOH5JNFTFDPOETNBY

/PUF4VSHF"SSFTUPSTXJUIB'BJMTBGFmechanism should be

individually FYBNJOFE after soldering

Storage and Operational

Temperature

UP¡$

Transverse Voltage (Delay Time)

5FTUFEUP*5653FD,

4FD

Arc Voltage

_UP7PMUT

Holdover Voltage

5FTUFEUP*5653FD,3&"1&

N4

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PMT3(310) Series 1

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Littelfuse PMT3(310) Series Manual de usuario Pagina 2

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