VER:06

Page 1 of 2

Issued Date

：2011/12/23

OUTPUT SPECIFICATIONS

Output power

3 Watts, max.

Voltage accuracy

± 1%

Minimum load (Note 1)

10% of FL

Line regulation

LL to HL at Full Load

± 0.2%

Load regulation

25% to 100% FL

Single

Dual

± 0.2%

± 1%

Cross regulation

Asymmetrical load 25% / 100% FL

± 5%

Ripple and noise

20MHz bandwidth

50mVp-p

Temperature coefficient

±0.02% / ºC, max.

Transient response recovery time 25% load step change

200µS

Over load protection

% of FL at nominal input

180%

Short circuit protection

Continuous, automatics recovery

INPUT SPECIFICATIONS

Input voltage range

24VDC nominal input (Note 2)

48VDC nominal input

9 ~ 36VDC

18 ~ 75VDC

Input filter

Pi type

Input surge voltage

24VDC input

48VDC input

50VDC 100mS, max.

100VDC 100mS, max.

Input reflected ripple (Note 3)

20mAp-p

Start up time

Nominal input and constant resistor load

350mS

Remote ON/OFF (Note 4)

(Positive logic)

Remote off input current

DC-DC ON

DC-DC OFF

Nominal input

Open or 3.5V < Vr < 12V

Short or 0V < Vr < 1.2V

2.5mA

GENERAL SPECIFICATIONS

Efficiency

See table

Isolation voltage

Input to Output

Input(Output) to Case

DIP

SMD

1600VDC, min. 1minute

1600VDC, min. 1minute

1000VDC, min. 1minute

Isolation resistance

10

9

ohms, min.

Isolation capacitance

300pF, max.

Switching frequency

300KHz±10%

Approvals and standard

IEC60950-1, UL60950-1, EN60950-1

Case material

Nickel-coated copper

Base material

Non-conductive black plastic

Potting material

Epoxy (UL94-V0)

Dimensions

1.25 X 0.80 X 0.40 Inch

(31.8 X 20.3 X 10.2 mm)

Weight

DIP

SMD

16g (0.55oz)

18g (0.62oz)

MTBF (Note 5)

2.941 x 10

ENVIRONMENTAL SPECIFICATIONS

Operating ambient temperature

-25ºC ~ +85ºC (with derating)

Operating case temperature

100ºC

Storage temperature range

-55ºC ~ +105ºC

Thermal impedance

Nature convection

20ºC/Watt

Thermal shock

MIL-STD-810F

Vibration

MIL-STD-810F

Relative humidity

5% to 95% RH

EMC CHARACTERISTICS

EMI

EN55022

Class A

ESD

EN61000-4-2

Air

Contact

± 8KV

± 6KV Perf. Criteria B

Radiated immunity

EN61000-4-3

10 V/m

Perf. Criteria A

Fast transient

EN61000-4-4

± 2KV Perf. Criteria B

Surge

EN61000-4-5

± 1KV Perf. Criteria B

Conducted immunity

EN61000-4-6

10 Vr.m.s Perf. Criteria A

The VKC03 offers 3 watts of output power from a package in an IC compatible 24pin DIP

configuration. VKC03 series have 4:1 wide input voltage of 9~36 and 18~75VDC. The

VKC03 features 1600VDC of isolation, short-circuit protection and as well as five sided

shielding. All models are particularly suited to telecommunications, industrial, mobile

telecom and test equipment applications.

50

60

70

80

90 100

-40 -25

0

-10

25

50

75

100

0

AMBIENT TEMPERATURE (ºC)

VKC03-48S05 Derating Curve

Nature convection

M1 Version

APPLICATIONS

Wireless Network

Telecom/Datacom

Industry Control System

Measurement Equipment

Semiconductor Equipment