rev.

page

date

DESCRIPTION: switching power supply

3 of 5

01/2011

20050

phone

phone 503.612.2300 fax

www.v-infinity.com

fax 503.612.2383

PART NUMBER: VF-S250-XXA

GENERAL AND SAFETY

parameter

conditions/description

min

nom

max

units

operating temp.

0 to 70ºC ambient, de-rating at 2.5% per degree

0

50

ºC

from 50ºC to 70ºC.

storage temp.

-20

85

ºC

operating humid.

Non-condensing

5%

90%

RH

storage humid.

Non-condensing

5%

95%

RH

EMI

CISPR 22/EN55022 class B, EN61000-3-2, 3,

EN61000-4-2, 3, 4, 5, 6, 8, 11, EN55024 CE marked (LVD)

safety

UL60950-1, CSA C22.2 No. 60950-1, TUV EN60950-1 and CB

leakage Current

Regular type 1.5mA @ 240VAC, (optional for 500uA @ 240VAC

1.5

mA

300uA @ 120VAC)

vibration

Acceleration ± 7.35 M/(SxS), on X, Y and Z Axis

5

50

Hz

fan drive

12 Vdc/300mA is available to drive an external fan.

isolation voltage

Applied for 3 seconds at 10 mA max.

(HI-POT)

Primary to secondary:

3,000

V ac

Primary to transformer core:

1,500

V ac

Primary to earth chassis:

1,500

V ac

grounding test

Allowable resistance measured when 25 A current is

0.1

Ω

applied from the ground pin of the three prong plug

to the farthest earthed connection point.

warranty

Standard warranty length

2

years

MTBF

According to MIL-HDBK-217 at 30 ºC

100,000

hours

burn-in

Full load, at 45 ± 5 ºC, 230 VAC.

1

hours

remote on/off

Designated as RMSW on the CN1, requires a low signal

to inhibit ouput. Hiccough mode.

MECHANICAL

parameter

conditions/description

min

nom

max

units

weight

400

grams

enclosure

5(L) x 3.2(W) x 1.5(H)

inches

LOGIC CONNECTOR - (CN1)

parameter

conditions/description

logic

JS B7B-XH-A

Suggested mating connector: JST XHP-3 or equivalent (CHYAO SHIUNN JS-2001-03)

pin assignments:

1. Power good

2. Remote switch

3. RTN