SK055R Ver la hoja de datos (PDF) - Littelfuse, Inc

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Fabricante

SK055R

Teccor® brand Thyristors 55 Amp Standard SCRs

Littelfuse, Inc 

Teccor® brand Thyristors

55 Amp Standard SCRs

Figure 12: Surge Peak On-State Current vs. Number of Cycles

1000

100

SUPPLY FREQUENCY: 60 Hz Sinusoidal

LOAD: Resistive

RMS On-State Current: [IT(RMS)]: Maximum Rated

Value at Specified Case Temperature

Notes:

1. Gate control may be lost during and immediately

following surge current interval.

2. Overload may not be repeated until junction

temperature has returned to steady-state

rated value.

10

1

10

100

1000

Surge Current Duration -- Full Cycles

Soldering Parameters

Reflow Condition

Pb – Free assembly

- Temperature Min (Ts(min))

Pre Heat - Temperature Max (Ts(max))

- Time (min to max) (ts)

Average ramp up rate (Liquidus Temp)

(TL) to peak

TS(max) to TL - Ramp-up Rate

Reflow

- Temperature (TL) (Liquidus)

- Temperature (tL)

Peak Temperature (TP)

Time within 5°C of actual peak

Temperature (tp)

Ramp-down Rate

Time 25°C to peak Temperature (TP)

Do not exceed

150°C

200°C

60 – 190 secs

5°C/second max

5°C/second max

217°C

60 – 150 seconds

260+0/-5 °C

20 – 40 seconds

5°C/second max

8 minutes Max.

280°C

TP

TL

TS(max)

TS(min)

Ramp-up

Preheat

tS

25

time to peak temperature

tP

tL

Ramp-down

Time

©2008 Littelfuse, Inc.

Specifications are subject to change without notice.

Please refer to http://www.littelfuse.com for current information.

295

Revised: July 9, 2008

Sxx55x Series

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