EXTERNAL AC/DC POWER SUPPLIES

15-20 W External AC/DC Power Supplies

1

2 YEAR WARRANTY

SSL20 Series

Single, Dual and T riple Output

The SSL20 series is a 15-20 W universal input ac-dc external Class II power supply in a

4.21 x 2.24 x 0.98 inch plastic enclosure. The SSL20 is a low cost series with five single

output and two multiple output models in a very small package providing a pre-

approved external power solution for a host of worldwide low power portable and

desktop applications. The SSL20 provides up to 20 W of output power with free air

convection cooling. Standard features include universal input, overvoltage, short circuit

protection and EN55022 conducted emissions level B. The series, with full international

safety approval and the CE mark, provides pre-approved SELV outputs without the

need for further safety approval or mechanical integration into the application system.

The SSL20 series is designed for use in low power, portable and desktop data

networking, computer and industrial applications requiring low cost external power

adapters in a small package.

All specifications are typical at nominal input, full load at 25 °C unless otherwise stated

GENERAL SPECIFICATIONS

Hold-up time

110 Vac @ full load

8 ms

Efficiency

110 Vac @ full load

70% typ.

Isolation voltage

Input/output

3000 Vac

Switching frequency

Fixed

60 kHz, ±10 kHz

Approvals and

EN60950, IEC950, UL1950

standards

BABT, CSA C22.2 No. 950

Case Material

General Electric Lexan, black

Flammability rating

UL94V-0

Weight

120 g (4.5 oz)

MTBF

MIL-HDBK-217F

150,000 hours min.

ENVIRONMENTAL SPECIFICATIONS

Thermal performance

Operating, full load

0 °C to +40 °C

Non-operating

–40 °C to +85 °C

0°C to +40°C ambient,

Full load

convection cooled

Peak

(See Note 1)

Relative humidity

Non-condensing

5% to 95% RH

Altitude

Operating

10,000 feet max.

Non-operating

30,000 feet max.

Vibration (See Note 6)

5-500Hz

2.4 G rms

Shock

per MIL-STD-810E

516.4 Part IV

OUTPUT SPECIFICATIONS

Total regulation

Main output

±2.0%

(Line and load)

Auxiliary outputs

±5.0%

Overshoot/undershoot

At turn on

2.0%

Transient response

Main output

±5.0% max. dev.,

50% to 100%

1ms recovery

full load step

to 1.0%

Temperature coefficient

±0.02%/°C, max.

Overvoltage protection

Main output

See table

Short circuit protection

Continuous

with auto-restart

Minimum output current

See table

INPUT SPECIFICATIONS

Input voltage range

Universal input

90-264 Vdc

Input frequency range

47-440 Hz

Input current

90 Vac

0.6 Arms max.

230 Vac

0.3 Arms max.

EMC CHARACTERISTICS

Radiated emissions

EN55022/11, FCC part 15

Level B

Conducted emissions

EN55022/11, FCC part 15

Level B

SPECIFICATIONS

International Safety Standard Approvals

VDE0805/EN60950/IEC950 File No. 104722

UL1950 File No. E136005

CSA C22.2 No. 950 File No. LR41062

Certification pending

geprüfte

Sicherhelt

File Name: ssl20.pdf Rev (01): 07 Nov 2005