WS1403 데이터 시트보기 (PDF) - Avago Technologies

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WS1403

CDMA PCS 3x3 Power Amplifier Module (1850-1910 MHz)

Avago Technologies 

TP

TL

Tsmax

tp

RAMP UP

tL

Tsmin

ts

PREHEAT

RAMP DOWN

25

t 25°C TO PEAK

TIME

Figure 19. Typical SMT reflow profile for maximum temperature = 260 +0/-5°C

CRITICAL ZONE

TL TO TP

Table 7. Typical SMT Reflow Profile for Maximum Temperature = 260 +0/-5°C

Profile Feature

Average Ramp-Up Rate (TL to TP)

Preheat

  - Temperature Min (Tsmin)

  - Temperature Max (Tsmax)

  - Time (Min to Max) (ts)

Tsmax to TL

  - Ramp-Up Rate

Time Maintained Above:

  - Temperature (TL)

  - Time (TL)

Peak Temperature (Tp)

Time Within 5°C of Actual Peak Temperature (tp)

Ramp-Down Rate

Time 25°C to Peak Temperature

Sn-Pb Solder

3°C/sec max

100°C

150°C

60-120 sec

183°C

60-150 sec

240 +0/-5°C

10-30 sec

6°C/sec max

6 min max.

Pb-Free Solder

3°C /sec max

150°C

200°C

60-180 sec

3°C /sec max

217°C

60-150 sec

260 +0/-5°C

20-40 sec

6°C/sec max

8 min max.

12

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