Switching Power Supplies - 20 Watt Series Specifications

20 Watt Series - UL/CUL Model List

Model	Input	A	Output	Cir Diag.	File E2972
					Vol.X	Sec.X
SSB-0126	100~240V 50/60Hz	1.6	24.0 VDC 2.5A	SPS	X1	E2972-A5
DPP44, TSA-0643	100~240V 50/60Hz	1.0	27/20 VDC 1.4A	SPS	X1	E2972-A6
SSB-0334	100~240V 50/60Hz	1.0	28/20.5 VDC 1.65A	SPS	X1	E2972-A7
SSB-0278	100~240V 50/60Hz	0.5	24.0 VDC 0.75A	SPS	X1	E2972-A9
A-A20, TSA-0657	100~120V 50/60Hz	1.0	5.0V 2.8A	SPS	1	4
A-A21, TSA-0674	100~120V 50/60Hz	1.0	8.0V 2.5A	SPS	1	4
SPS-20-001	100~240V 50/60Hz	1.0	5-6V 3.6-0.72A	SPS	1	4
SPS-20-002	100~240V 50/60Hz	1.0	6-8V 3.33-0.72A	SPS	1	4
SPS-20-003	100~240V 50/60Hz	1.0	8-11V 3.00-0.72A	SPS	1	4
SPS-20-004	100~240V 50/60Hz	1.0	11-13V 2.18-0.72A	SPS	1	4
SPS-20-005	100~240V 50/60Hz	1.0	13-16V 1.84-0.72A	SPS	1	4
SPS-20-006	100~240V 50/60Hz	1.0	16-21V 1.50-0.72A	SPS	1	4
SPS-20-007	100~240V 50/60Hz	1.0	21-27V 1.14-0.72A	SPS	1	4
SPS-20-008	100~240V 50/60Hz	1.0	27-33V 0.89-0.72A	SPS	1	4

Main Specifications

Universal Input 100 to 240 VAC

Single output option

Overload protection

100% Hi-Pot tseted

100% cycling burnt-in

Output Specifications

Line regulation - 1%

Load regulation - 5%

Maximum power - 15W for convection cooled

Hold up time - 10ms at full load, 120VAC

Efficiency 65~75% typical at full load, varies with distribution of loads among outputs

Transient response main output 50-100%
50~100% max. dev. 10ms recovery

Ripple & Noise, 1MHZ BW 1%MAX

Over-current protection - Yes (Output short protection)

Input Specifications

Input voltage 90 to 264 VAC

Input frequency 47 to 63 HZ

Input current 0.6A

Inrush current 40A max

Protection 2A / 250V fuse

Configuration UL 2pin or europe plug

(U: Europe plug A: UL plug)

Case size: 75x50.5x25 mm

Weight: approx 130g

Electrical Spefications

Dielectric strength test 4.2K VDC primary to secondary

Insulation resistance 50M Ohm @ 500 VDC primary to secondary

Leakage current less than 0.25mA

Environmental Specifications

Operating temperature, full load, no derating, 0ºC~40ºC

Non-operating -20~85ºC

Relative humidity non-condensing 0~95%

Altitude sea level up to 10000 feet

Cooling Convection cooled

Vibration 10 to 55Hz, Amplitude 2g sweep
1 min for x.y.z axis each
cycle:20

Safety Standard

Designed to meet the standard of:

UL 1950

EN 60950

PSE Mark

TUV

EMI

FCC Class B . CISPR
Class B. VCC 1

Class II

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