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Mean Well

Mean Well SCW12A-05 DC-DC Converter - 12W 9~18V DC in 5V out 2.4A

SKU SCW12A-05
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Overview

SCW12A-05 is the 5V output model of this series: rated power 12W, typical efficiency 82%.

Features

  • 2:1 wide input range
  • 1500VDC I/O isolation
  • Built-in remote ON/OFF control
  • Built-in EMI filter
  • Protections: Short circuit / Overload
  • Cooling by free air convection
  • Five-sided shield metal case
  • 100% full load burn-in test
  • Low cost / High reliability
  • Modified models available: output 2.5V/3.3V
  • 2 years warranty

Specifications

SCW12A-05Specifications from the official datasheet (2024-08-02 edition)

OUTPUT

DC VOLTAGE
5V
CURRENT RANGE
480 ~ 2400mA
RATED POWER
12W
RIPPLE & NOISE (max.)Note.2
50mVp-p
LINE REGULATIONNote.3
±0.5%
LOAD REGULATIONNote.4
±0.5%
VOLTAGE ACCURACY
±2.0%
SWITCHING FREQUENCY
400KHz min.
EXTERNAL CAPACITANCE LOAD (max.)
1000uF

INPUT

VOLTAGE RANGE
9 ~ 18VDC
EFFICIENCY (Typ.)
82%
DC CURRENT Full load
1245mA
DC CURRENT No load
70mA
FILTER
Pi network
PROTECTION
Fuse recommended

PROTECTION (Note. 5)

OVERLOAD
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

ENVIRONMENT

WORKING TEMP.
-40 ~ +71℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +105℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.05% / ℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes

SAFETY

SAFETY STANDARDS
EAC TP TC 020/2011 approved
WITHSTAND VOLTAGE
I/P-O/P:1.5KVDC
ISOLATION RESISTANCE
I/P-O/P: 100M Ohms / 500VDC / 25℃/ 70% RH
ISOLATION CAPACITANCE
2200pF max.
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

REMOTE CONTROL
Power ON: R.C. ~ -Vin > 4VDC or open ; Power OFF: R.C. ~ -Vin < 1VDC or short
MTBF
600Khrs min. MIL-HDBK-217F(25℃)
DIMENSION
31.8*20.3*12.2mm or 1.25"*0.80"*0.48" inch (L*W*H)
PACKING
17.5g ; 15pcs/per tube, 750pcs/50 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 20% 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

SCW12A-05 Mechanical Specification
Mechanical Specification
SCW12A-05 Packing
Packing

Downloads

FAQ

Can I use the SCW12A-05 to power a 5V embedded controller from a 12V-class industrial supply?

Yes, this model is intended for applications that need a regulated 5V constant-voltage output from a 9-18VDC input range. Its output is rated at 5V and up to 2.4A, with 12W total power, which fits low-power embedded control and interface electronics within those limits.

Is the SCW12A-05 suitable for 5V sensors or small industrial interface boards?

It can be a fit for 5V industrial electronics that require constant-voltage power and stay within the 2.4A, 12W output rating. The compact 31.8 × 20.3 × 12.2 mm size also helps where board or enclosure space is limited.

Can this converter be used in automation equipment that runs in very cold or hot environments?

The specified operating temperature range is -40°C to +71°C (with load derating at higher temperatures per the derating curve), which supports use in demanding industrial temperature conditions. The specs do not list an IP rating, so environmental sealing for wet, dusty, or outdoor exposure is not confirmed by the product data shown here.

Is the SCW12A-05 a good choice for compact 5V logic or monitoring circuits?

Yes, the combination of 5V output, 2.4A max current, and 12W power makes it suited to low-power logic, monitoring, and embedded electronics that need stable constant-voltage output. Its 17.5 g weight and small footprint make it easier to use in dense equipment layouts.

How does the SCW12A-05 compare with the other SCW12A models?

All SCW12A versions in this group are 12W constant-voltage converters with 9-18VDC input, the same 31.8 × 20.3 × 12.2 mm dimensions, 17.5 g weight, -40°C to +71°C operating range, EAC certification, and 2-year warranty. The difference is the output: SCW12A-05 is 5V at 2.4A, SCW12A-12 is 12V at 1A, and SCW12A-15 is 15V at 0.8A.

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Mean Well SCW12A-05 DC-DC Converter - 12W 9~18V DC in 5V out 2.4A
Mean Well

Mean Well SCW12A-05 DC-DC Converter - 12W 9~18V DC in 5V out 2.4A

Log in to see price

SCW12A-05 is the 5V output model of this series: rated power 12W, typical efficiency 82%.

Features

  • 2:1 wide input range
  • 1500VDC I/O isolation
  • Built-in remote ON/OFF control
  • Built-in EMI filter
  • Protections: Short circuit / Overload
  • Cooling by free air convection
  • Five-sided shield metal case
  • 100% full load burn-in test
  • Low cost / High reliability
  • Modified models available: output 2.5V/3.3V
  • 2 years warranty
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