EXTERNAL AC/DC POWER SUPPLIES 15-20 W External AC/DC Power Supplies 1
2 YEAR WARRANTY
SSL20 Series
Single, Dual and Triple Output
•4.21 x 2.24 x 0.98 inch enclosure
•15-20 W external power supply
•Molded UL94V-0 plastic enclosure
•Stand alone ‘listed’ equipment
•Overvoltage and short circuit protection
•
EN55022, EN55011, FCC conducted and radiated emissions level B
•UL, CSA and VDE safety approvals
•Available RoHS compliant
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