ALO20F48 datasheet(26/26 Pages) ASTEC

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Technical Reference Notes

AEO_ALO04/12/20/25x48 Series

(Single Output 8th Brick)

MODEL: AEO_ALO04/12/20/25x48 SERIES

SHEET 26 OF 26

AUGUST 25, 2005 - REVISION G

RECOMMENDED REFLOW PROFILE

100

120

140

160

180

200

220

240

120

150

180

210

240

270

300

TIME (seconds)

SOLDERING CONSIDERATIONS

The AEO (baseplate) series converters are compatible

with standard wave soldering techniques. When wave

soldering, the converter pins should be preheated for

20-30 seconds at 110

°C and wave soldered at 260°C

for less than 10 seconds.

When hand soldering, the iron temperature should be

maintained at 425

°C and applied to the converter pins

for less than 5 seconds. Longer exposure can cause

internal damage to the converter. Cleaning can be

performed with cleaning solvent IPA or with water.

For SMT terminated modules, refer to Figure 64 for

the recommended reflow profile.

Figure 64. Recommended reflow profile for SMT modules.

TABLE 2: PART NUMBERING SCHEME

CONSTRUCTION

O/P CURRENT

O/P VOLTAGE

Vin

Enable

PIN LENGTH

TERMINATION

L = Open frame

E = Baseplate

04 = 4A

12 = 12A

20 = 20A

25 = 25A

B =12V

A =5V

F =3.3V

G =2.5V

Y =1.8V

M =1.5V

K =1.2V

N = Negative

Blank = Positive

6 = 3.7mm

blank = 5mm

default

S = SMT Termination

Blank = thru-hole

Note: 1) For Through Hole termination:

- Std pin length is 5mm nominal (min: 0.189 [4.8]; max: 0.205 [5.2] / in [mm])

- “-6” option is 3.7mm nominal (min: 0.137 [3.5]; max: 0.152 [3.9] / in [mm])

- Pins 4&8 diameter:

∅ = 0.062 [1.57], others: ∅ = 0.04 [1.0] (6X)

Please call 1-888-41-ASTEC for further inquiries

or visit us at www.astecpower.com

PRE-HEAT ZONE

120 - 180 sec

REFLOW

ZONE

< 80 sec

110

°C

183

°C

PEAK TEMPERATURE

200

°C - 230°C

SLOPE

< 4

°C /sec

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