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Mean Well

Mean Well SKA20B-05 DC-DC Converter - 20W - 18~36V in 5V out 4A

SKU SKA20B-05
$30.14 USD
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Available to order
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Overview

SKA20B-05 is the 5V 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

SKA20B-05Specifications from the official datasheet (2024-08-02 edition)

OUTPUT

DC VOLTAGE
5V
CURRENT RANGE
400 ~ 4000mA
RATED POWER
20W
RIPPLE & NOISE (max.)Note.2
50mVp-p
LINE REGULATIONNote.3
±0.2%
LOAD REGULATIONNote.4
±0.5%
VOLTAGE ACCURACY
±2.0%
SWITCHING FREQUENCY
300KHz typ.
EXTERNAL CAPACITANCE LOAD (max.)
1000uF
EXTERNAL TRIM Adj. RANGE(Typ.)
±10%

INPUT

VOLTAGE RANGE
18 ~ 36VDC
EFFICIENCY (Typ.)
88%
DC CURRENT Full load
970mA
DC CURRENT No load
55mA
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-05 Mechanical Specification
Mechanical Specification
SKA20B-05 Packing
Packing

Downloads

FAQ

Can I use the SKA20B-05 to power a 5V industrial controller or embedded board from an 18-36VDC source?

Yes, this model is designed for a 5V constant-voltage output and accepts 18-36VDC input. It can support 5V loads up to 4A, with a 20W maximum output.

Is the SKA20B-05 suitable for 5V automation sensors or interface modules in a control cabinet?

It can be a fit for 5V automation devices that need regulated constant-voltage power and stay within 4A output current. The 20W rating and 18-36VDC input range make it relevant where that input window is available.

Can this converter be used for 5V embedded or industrial communication hardware?

It is intended for applications that need a fixed 5V output from an 18-36VDC input source. As long as the equipment requires no more than 4A at 5V, this converter matches that electrical profile.

Is the SKA20B-05 rated for outdoor or harsh-temperature use?

The listed operating temperature range is -40°C to +85°C, which supports use across a wide temperature span. No IP rating is provided in the specs, so the product data does not identify it as outdoor- or weather-exposed rated.

How does the SKA20B-05 compare with the other SKA20B models?

Within the SKA20B series, all three models are 20W units with the same 18-36VDC input range, 50.8 × 25.4 × 11.2 mm dimensions, 0.0312 kg weight, and -40°C to +85°C operating range. The difference is output: 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-05 DC-DC Converter - 20W - 18~36V in 5V out 4A
Mean Well

Mean Well SKA20B-05 DC-DC Converter - 20W - 18~36V in 5V out 4A

$30.14 USD

SKA20B-05 is the 5V 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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