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Mean Well

Mean Well SKA20A-12 DC-DC Converter - 20W - 9~18V in 12V out 1.66A

SKU SKA20A-12
$30.13 USD
Shipping calculated at checkout.
In stock
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Overview

SKA20A-12 is the 12V output model of this series: rated power 20W, typical efficiency 88%.

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

SKA20A-12Specifications from the official datasheet (2024-08-02 edition)

OUTPUT

DC VOLTAGE
12V
CURRENT RANGE
166 ~ 1666mA
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.)
220uF
EXTERNAL TRIM Adj. RANGE(Typ.)
-20 ~ +10%

INPUT

VOLTAGE RANGE
9 ~ 18VDC
EFFICIENCY (Typ.)
88%
DC CURRENT Full load
1910mA
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. 1.All parameters are specified at normal input, rated load, 25℃ 70% RH ambient.
  2. 2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1uf & 47uf capacitor.
  3. 3.Line regulation is measured from low line to high line at rated load.
  4. 4.Load regulation is measured from 10% to 100% rated load.
  5. 5.Please prevent the converter from operating in overload or short circuit condition for more than 30 seconds.

Technical drawings

SKA20A-12 Mechanical Specification
Mechanical Specification
SKA20A-12 Packing
Packing

Downloads

FAQ

Can I use the SKA20A-12 for a 12V automation controller or panel circuit powered from 9-18VAC?

Yes, if the source falls within 9-18VAC and the load requires constant 12V output. The converter provides up to 1.66A and 20W, which fits lower-power 12V automation circuits within that range.

Is this converter suitable for 12V industrial relays, indicators, or interface boards?

It can support 12V constant-voltage accessories when their combined demand does not exceed 20W. With a 1.66A output limit, it is aimed at moderate-power 12V relay, indicator, or interface loads rather than heavier 12V equipment.

Would the SKA20A-12 work for embedded 12V electronics in a space-constrained machine design?

It is a practical fit where the electronics need regulated 12V and the available space is limited. The converter measures 50.8 × 25.4 × 11.2 mm and weighs 0.0312 kg, while providing up to 1.66A output.

Can this model power a small 12V HMI, gateway, or communications accessory?

Yes, if the accessory uses constant 12V and stays within the 20W, 1.66A output rating. That makes it suitable for lower-power 12V control, gateway, or communications accessories fed from a 9-18VAC source.

How does the SKA20A-12 compare with the other SKA20A versions?

All listed SKA20A models share the same 20W power rating and 9-18VAC input range. The outputs differ: SKA20A-05 is 5V at 4A, SKA20A-12 is 12V at 1.66A, and SKA20A-15 is 15V at 1.33A.

Payment & Security

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Mean Well SKA20A-12 DC-DC Converter - 20W - 9~18V in 12V out 1.66A
Mean Well

Mean Well SKA20A-12 DC-DC Converter - 20W - 9~18V in 12V out 1.66A

$30.13 USD

SKA20A-12 is the 12V output model of this series: rated power 20W, typical efficiency 88%.

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
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