.250

(6.4)

1.800

(45.7)

2.50

(63.5)

6-32 SCREW

THREAD

(4 PL)

.77

(19.6)

3.300

(83.8)

5.00

(127)

8-32 SCREW

THREAD

(4 PL)

MAX SCREW PENETRATION

FROM BOTTOM OF CHASSIS

.250"

.75

1.800

(45.7)

2.5

(63.5)

6-32 SCREW

THREAD

(4 PL)

.250

(6.4)

10.50

(267)

9.000

(228.6)

F2

5A

125VAC

C7

C8

5A, 250VAC

TB1

F1

CONTROL

BOARD

OUTPUT # 4

PCB

BUS 1

BUS 2

TS1

TB3

2

1

TB2

J1

T1

PIN 1

PIN 1

PIN 6

PIN 1

+ 5.1V RET

+ 5.1V

THERMAL

SENSOR

TB3

TB2

J1

(–)

(+)

1

ALL DIMENSIONS IN INCHES (mm)

D

E

F

B

G

A

(19.1 ) TYP.

1

TB1 Connector

Kulka P/N 4597A-03 or equivalent.

TB2 Connector

TB3 Connector

Use #6 fork terminal connector or equivalent.

J1 Connector

Molex 22-05-3061. Mating connector is Molex 22-01-2067 or equivalent with

Molex 08-50-0114 or equivalent crimp terminal, see Note C.

Mechanical notes

A

Minimum clearance distance to any external grounded metal plate or

chassis is 2mm.

B

Removing R15 causes the power supply to latch off in the event of output

short, over-voltage or over-temperature. Removing the line power for 15

seconds will reset the latch.

C Fan current must be subtracted from the available +12V current.

D

+5V output adjustment pot.

E

+12V output adjustment pot is located on the main PCB, and can be

accessed through this hole. Use a Philips head plastic adjustment tool.

F

–12V output adjustment pot is located on the main PCB, and can be

accessed through this hole. Use a Philips head plastic adjustment tool.

G Auxiliary fourth output adjustment pot.

H A standard cover and fan assembly can be added during manufacturing.

Details are on page 65. To order, add suffix ‘CF’ to the model number. e.g.

NFS350-7608PCF.

32W MINIMUM LOAD REQUIRED TO MAINTAIN

REGULATION

350W

0W

32W

175W

FORCED AIR COOLING

(30CFM)

DERATING CURVE

Output Power (Watts)

350 Watt

AC/DC universal input switch mode power supplies

AC/DC POWER SUPPLIES

|

350W AC

PAGE 3