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Mean Well

Mean Well SCW12A-12 DC-DC Converter - 12W 9~18V DC in 12V out 1A

SKU SCW12A-12
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Overview

SCW12A-12 is the 12V 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-12Specifications from the official datasheet (2024-08-02 edition)

OUTPUT

DC VOLTAGE
12V
CURRENT RANGE
200 ~ 1000mA
RATED POWER
12W
RIPPLE & NOISE (max.)Note.2
60mVp-p
LINE REGULATIONNote.3
±0.5%
LOAD REGULATIONNote.4
±0.5%
VOLTAGE ACCURACY
±2.0%
SWITCHING FREQUENCY
400KHz min.
EXTERNAL CAPACITANCE LOAD (max.)
220uF

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-12 Mechanical Specification
Mechanical Specification
SCW12A-12 Packing
Packing

Downloads

FAQ

Can I use the SCW12A-12 for 12V PLC accessories or control electronics?

Yes, this converter is suited to 12V constant-voltage loads that fit within its 1A and 12W output rating. With a 9-18VDC input range, it matches equipment that needs regulated 12V output from that input window.

Is the SCW12A-12 appropriate for small 12V industrial sensors or relays?

It can be used for 12V industrial devices that require constant-voltage power and draw no more than 1A total. The 12W rating makes it better suited to lower-power sensors, relays, and compact control modules rather than heavier 12V loads.

Can this model work in compact embedded or automation housings?

Yes, the body measures 31.8 × 20.3 × 12.2 mm and weighs 17.5 g, so it is sized for compact equipment designs. That makes it a practical option where 12V regulated output is needed but enclosure space is limited.

Is the SCW12A-12 suitable for outdoor or harsh-location use?

Its operating temperature range is -40°C to +71°C (with load derating at higher temperatures per the derating curve), so the temperature spec supports a wide range of industrial conditions. However, no IP rating is listed in the provided specs, so outdoor exposure or washdown suitability cannot be confirmed from this data alone.

What is the difference between SCW12A-12 and the other SCW12A versions?

The SCW12A-05, SCW12A-12, and SCW12A-15 all share 12W power, 9-18VDC input, constant-voltage operation, 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. Their outputs differ: 5V at 2.4A, 12V at 1A, and 15V at 0.8A respectively.

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Mean Well SCW12A-12 DC-DC Converter - 12W 9~18V DC in 12V out 1A
Mean Well

Mean Well SCW12A-12 DC-DC Converter - 12W 9~18V DC in 12V out 1A

Log in to see price

SCW12A-12 is the 12V 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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