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Mean Well

Mean Well SKA20B-12 DC-DC Converter - 20W - 18~36V in 12V out 1.66A

SKU SKA20B-12
$30.13 USD
Shipping calculated at checkout.
Available to order
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Overview

SKA20B-12 is the 12V output model of this series: rated power 20W, typical efficiency 88.5%.

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

SKA20B-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
18 ~ 36VDC
EFFICIENCY (Typ.)
88.5%
DC CURRENT Full load
970mA
DC CURRENT No load
25mA
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
>40 ~ 43VDC

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

SKA20B-12 Mechanical Specification
Mechanical Specification
SKA20B-12 Packing
Packing

Downloads

FAQ

Can I use the SKA20B-12 for a 12V automation controller or industrial relay module?

Yes, this unit provides a constant 12V output and accepts 18-36VDC input. It is suitable for 12V equipment that stays within 1.66A output current and the 20W maximum power rating.

Is the SKA20B-12 appropriate for 12V instrumentation or monitoring devices in industrial equipment?

It can be used where the device needs regulated 12V constant-voltage power and the source available is within 18-36VDC. The output limit is 1.66A, so the connected load needs to fit inside that current and 20W power envelope.

Can this model support 12V embedded or control-system electronics from a wide DC input range?

The converter is built for 18-36VDC input and delivers a fixed 12V output. That makes it relevant for 12V embedded or control electronics that need up to 1.66A.

Is the SKA20B-12 intended for exposed outdoor environments?

The temperature rating is -40°C to +85°C, so the unit is specified for broad operating temperatures. However, no IP rating is listed, so the product information does not define it as an outdoor or weatherproof converter.

What is the difference between SKA20B-12 and the other SKA20B versions?

All SKA20B models share the same 20W power class, 18-36VAC input range, dimensions of 50.8 × 25.4 × 11.2 mm, weight of 0.0312 kg, and -40°C to +85°C operating temperature. The outputs differ: SKA20B-05 is 5V at 4A, SKA20B-12 is 12V at 1.66A, and SKA20B-15 is 15V at 1.33A.

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Mean Well SKA20B-12 DC-DC Converter - 20W - 18~36V in 12V out 1.66A
Mean Well

Mean Well SKA20B-12 DC-DC Converter - 20W - 18~36V in 12V out 1.66A

$30.13 USD

SKA20B-12 is the 12V output model of this series: rated power 20W, typical efficiency 88.5%.

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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