GENERAL SPECIFICATIONS

Efficiency

See table

Isolation voltage

1600VDC, min

Isolation resistance

10

9

ohms, min

Isolation capacitance

500pF, max

Switching frequency

300KHz, typ

Approvals and standard

IEC60950, UL1950, EN60950

Potting material

Epoxy (UL94-V0)

Dimensions

1.95 X 1.19 X 0.38 Inch

(49.5 X 30.2 X 9.7 mm)

Weight

32.5g (1.15oz)

MTBF (Note 4)

1.632 x 10

ENVIRONMENTAL SPECIFICATIONS

Operating temperature range

-40ºC ~ +85ºC (with derating)

Maximum case temperature

+100ºC

Storage temperature range

-55ºC ~ +105ºC

Thermal impedance

Nature convection

14ºC/Watt

Thermal shock

MIL-STD-810D

Vibration

10~55Hz, 2G, 30minutes along X,Y and Z

Relative humidity

5% to 95% RH

EMC CHARACTERISTICS

Conducted emissions

EN55022

Level A

Radiated emissions

EN55022

Level A

ESD

EN61000-4-2

Perf. Criteria2

Radiated immunity

EN61000-4-3

Perf. Criteria2

Fast transient

EN61000-4-4

Perf. Criteria2

Surge

EN61000-4-5

Perf. Criteria2

Conducted immunity

EN61000-4-6

Perf. Criteria2

OUTPUT SPECIFICATIONS

Output power

20 Watts max

Voltage accuracy

Full load and nominal Vin

± 1%

Voltage adjustability

± 10%

Minimum load

0%

Line regulation

LL to HL at Full Load

± 0.2%

Load regulation

10% to 100% FL

± 0.5%

Ripple and noise

20MHz bandwidth

(Measured with 104pF/50V MLCC)

See table

Temperature coefficient

I0.02% / ºC, max

Transient response recovery time 25% load step change

300uS

Over voltage

Zener diode clamp

2.0V output

3.3V output

5V output

12V output

15V output

3.9V

3.9V

6.2V

15V

18V

Over load protection

% of FL at nominal input

150% max

Short circuit protection

Hiccup, automatics recovery

INPUT SPECIFICATIONS

Input voltage range

48V nominal input

36 – 75VDC

Input voltage lockout

DC-DC ON

DC-DC OFF

36VDC

33VDC

Input filter(Note 1)

L-C type

Input voltage variation

dv/dt

5V/ms,max

(Complies with ETS300 132 part 4.4)

Input surge voltage

100mS max

48V input

100VDC

Input reflected ripple (Note 2) Nominal Vin and full load

25mAp-p

Start up time

Nominal Vin and constant resistor load

25mS

Remote ON/OFF (Note 3)

Remote off input current

DC-DC ON

DC-DC OFF

Nominal Vin

Open or 3.5V < Vr < 12V

Short or 0V < Vr < 1.2V

2.5mA

The SDC20 series offer 20 watts of output power from a 1.95 x 1.19 x 0.38 inch

SMD type package. The SDC20 series with 2:1 wide input voltage of 36-75VDC

and features 1600VDC of isolation, short-circuit and over-voltage protection, as

well as six sided shielding. All models are particularly suited to telecommunications,

industrial, mobile telecom and test equipment applications.

UL

E193009

TUV R50011065

CB

JPTUV-003967

CE MARK