cui.com

date 04/28/2021

│ page 5 of 7

CUI Inc

│ SERIES: VOF-S25B │ DESCRIPTION: AC-DC POWER SUPPLY

MECHANICAL

parameter

conditions/description

min

typ

max

units

dimensions

2.00 x 1.10 x 0.980 (50.80 x 27.94 x 24.90 mm)

inches

weight

50

g

MECHANICAL DRAWING

units: inch [mm]

tolerance: ±0.020[±0.50]

PIN CONNECTIONS

PIN

Function

Standard

Power Boost

1

AC (L)

AC (L)

2

AC (N)

AC (N)

3

+Vo

+Vo

4

-Vo

-Vo

5

No Pin

BC+

6

No Pin

BC-

EMC RECOMMENDATIONS

When used in a Class I system implementation (utilizing an Earth Ground connection as depicted in the schematic below),

the VOF-S25B series requires additional inductance and Y-Caps to meet EN55032 Class B. These additional components

are not required in a Class II implementation where no Earth Ground is present.

CHOKE

Specification

Inductance

Duplex

Winding/Turns

Manufacturers

UU9.8 R12K

10mH

2-UEW

Φ 0.27*85Ts

SEND POWER

Y-CAP

Subclass

Withstand

Voltage

Capacitance

Manufacturers

Y1 CAP

250 V (min.) 1000 pF (typ.)

TDK

Standard

Power Boost

Additional Resources: Product Page | 3D Model | PCB Footprint