7805A Просмотр технического описания (PDF) - Wing Shing International Group

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7805A

3-Terminal positive Voltage Regulators

Wing Shing International Group 

7805A

3- Terminal Positive Voltage Regulators

Soldering Methods for Orister’s Products

1. Storage environment: Temperature=10oC~35oC Humidity=65%±15%

2. Reflow soldering of surface-mount devices

Figure 1: Temperature profile

TP

tP

Ramp-up

Critical Zone

TL to TP

TL

Tsmax

tL

Tsmin

25

tS

Preheat

t 25oC to Peak

Time

Ramp-down

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 5oC of actual Peak

Temperature (tP)

Ramp-down Rate

Time 25oC to Peak Temperature

3. Flow (wave) soldering (solder dipping)

Products

Pb devices.

Pb-Free devices.

Sn-Pb Eutectic Assembly

<3oC/sec

100oC

150oC

60~120 sec

<3oC/sec

183oC

60~150 sec

240oC +0/-5oC

10~30 sec

<6oC/sec

<6 minutes

Peak temperature

245oC ±5oC

260oC +0/-5oC

Pb-Free Assembly

<3oC/sec

150oC

200oC

60~180 sec

<3oC/sec

217oC

60~150 sec

260oC +0/-5oC

20~40 sec

<6oC/sec

<8 minutes

Dipping time

5sec ±1sec

5sec ±1sec

6

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