Over 15 years experience of providing support of MEAN WELL Power Supplies
Overview
SKA20A-15 is the 15V output model of this series: rated power 20W, typical efficiency 89%.
Features
- 2"×1" compact size
- 2:1 wide input range
- High efficiency up to 89.5%
- 1500VDC I/O isolation
- Built-in remote ON/OFF control
- Built-in trimming output
- Built-in EMI filter
- Protections: Short circuit / Overload / Input and Output Over voltage
- Cooling by free air convection
- Six-sided shielded metal case
- 100% burn-in test
- Low cost / High reliability
- Approvals: FCC / EAC / CE / UKCA
- 2 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 15V
- CURRENT RANGE
- 133 ~ 1333mA
- RATED POWER
- 20W
- RIPPLE & NOISE (max.)Note.2
- 60mVp-p
- LINE REGULATIONNote.3
- ±0.2%
- LOAD REGULATIONNote.4
- ±0.5%
- VOLTAGE ACCURACY
- ±2.0%
- SWITCHING FREQUENCY
- 300KHz typ.
- EXTERNAL CAPACITANCE LOAD (max.)
- 100uF
- EXTERNAL TRIM Adj. RANGE(Typ.)
- -20 ~ +10%
INPUT
- VOLTAGE RANGE
- 9 ~ 18VDC
- EFFICIENCY (Typ.)
- 89%
- DC CURRENT Full load
- 1870mA
- DC CURRENT No load
- 35mA
- FILTER
- Pi network
- REMOTE CONTROL
- Power ON : R.C ~ -Vin > 2.5V ~ 30VDC or open circuit ; Power OFF : R.C ~ -Vin < 0.5VDC or short
PROTECTION (Note. 5)
- PROTECTION
- Fuse recommended
- OVER CURRENT
- 110% ~ 180% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
- SHORT CIRCUIT
- All output equipped with short circuit Protection type : Hiccup mode, recovers automatically after fault condition is removed
- OVER VOLTAGE
- >20 ~ 23VDC
ENVIRONMENT
- WORKING TEMP.
- -40 ~ +85℃ (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20% ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -55 ~ +125℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.03% / ℃ (0 ~ 50℃)
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY & EMC
- SAFETY STANDARDS
- EAC TP TC 020/2011 (EAC TP TC 004 for 48Vin type only) approved
- WITHSTAND VOLTAGE
- I/P-O/P:1.5KVDC
- ISOLATION RESISTANCE
- I/P-O/P: 100M Ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSION
- Compliance to BS EN/EN55032 Class A, FCC part 15 Class A, EAC TP TC 020
- EMC IMMUNITY
- Compliance to BS EN/EN61000-4-2,3,4,5,6,8, light industry level, criteria A, EAC TP TC 020
OTHERS
- MTBF
- 700Khrs min. MIL-HDBK-217F(25℃)
- DIMENSION
- 50.8*25.4*11.2 mm or 2"*1"*0.44" inch (L*W*H)
- PACKING
- 31.2g ; 10pcs/per tube, 400pcs/40 tube/per carton
Test conditions and notes5
- 1.All parameters are specified at normal input, rated load, 25℃ 70% RH ambient.
- 2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1uf & 47uf capacitor.
- 3.Line regulation is measured from low line to high line at rated load.
- 4.Load regulation is measured from 10% to 100% rated load.
- 5.Please prevent the converter from operating in overload or short circuit condition for more than 30 seconds.
Technical drawings
Downloads
FAQ
Can I use the SKA20A-15 for a 15V industrial control circuit from a 9-18VAC source?
Yes, if the input source is within 9-18VAC and the load needs constant 15V output. The converter is rated for 20W total and up to 1.33A, so it fits smaller 15V control circuits within those limits.
Is this model suitable for 15V embedded or analog electronics in automation equipment?
It can be used for 15V constant-voltage electronics when the total current stays at or below 1.33A. That makes it a fit for lower-power embedded or analog sections that need a regulated 15V rail.
Would the SKA20A-15 work for 15V instrumentation or interface modules inside a panel?
Yes, for panel-mounted instrumentation or interface modules that need 15V constant voltage and stay within 20W output. The compact 50.8 × 25.4 × 11.2 mm size also helps in tighter cabinet layouts.
Can this converter be used for a small 15V communications or monitoring subsystem?
It is suitable for smaller 15V subsystems as long as the total load remains within 1.33A and 20W. The unit also weighs 0.0312 kg, which supports compact low-mass assemblies.
Is the SKA20A-15 appropriate for outdoor installations or only controlled enclosures?
The operating temperature range is -40°C to +85°C, so the listed thermal range is broad. However, no IP rating appears in the provided specs, so it should not be described from this data alone as an outdoor-rated or sealed model.
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