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Mean Well

Mean Well DCW12C-05 DC-DC Converter - 12W - 36~72V in ±5V out 1.2A

SKU DCW12C-05
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Overview

DCW12C-05 is the ±5V output model of this series: rated power 12W, typical efficiency 81%.

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
  • 2 years warranty

Specifications

DCW12C-05Specifications from the official datasheet (2024-08-02 edition)

OUTPUT

DC VOLTAGE
±5V
CURRENT RANGE
±240 ~ ±1200mA
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.)
670uF

INPUT

VOLTAGE RANGE
36 ~ 72VDC
EFFICIENCY (Typ.)
81%
DC CURRENT Full load
320mA
DC CURRENT No load
25mA
FILTER
Pi network
PROTECTION
Fuse recommended

PROTECTION

OVERLOADNote.5
110 ~ 180% rated output load Protection type : Hiccup mode, recovers automatically after fault condition is removed
SHORT CIRCUIT
All output equipped with over current protection 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./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC

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 (L*W*H) or 1.25"*0.80"*0.48" inch (L*W*H)
PACKING
17.5g ; 15 pcs/per tube, 750 pcs/ 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

DCW12C-05 Mechanical Specification
Mechanical Specification
DCW12C-05 Packing
Packing

Downloads

FAQ

What is the input and output range of the Mean Well DCW12C-05?

The DCW12C-05 is a 12W DC-DC converter with a 36 to 72V DC input range and a regulated ±5V DC output. It is designed for applications that need dual 5V rails from a wide 2:1 input range. The rated output current is 1.2A.

What kinds of applications is the DCW12C-05 typically used for?

This model is suited to industrial and OEM equipment that needs isolated DC-DC conversion from a 36 to 72V DC source. Its compact size, metal case, and built-in EMI filter make it a practical choice for embedded power designs where space and noise control matter. Buyers often consider it for systems requiring dual ±5V output in a modular converter format.

Does the DCW12C-05 provide electrical isolation?

Yes. The DCW12C-05 provides 1500VDC input-to-output isolation. It also specifies input-to-output isolation resistance of 100M Ohms at 500VDC under stated test conditions.

How does this model handle overload and short circuit conditions?

The converter includes overload protection with auto-recovery, specified at 110% to 180%. It also has short circuit protection on all outputs using hiccup-mode recovery after the fault condition is removed. These protections help support reliability in demanding equipment designs.

Is the DCW12C-05 suitable for harsh temperature environments?

It is rated for operation from -40°C to +71°C, subject to the output derating curve. Storage temperature is specified from -40°C to +105°C. That makes it appropriate for a wide range of industrial environments where temperature tolerance is important.

What makes the DCW12C-05 different from a non-isolated DC-DC converter?

Compared with non-isolated converters, the DCW12C-05 adds 1500VDC isolation between input and output, which can be important for noise control and system protection. It also includes a built-in EMI filter and a five-sided shield metal case. Those features make it better suited to applications where isolation and EMC performance are priorities.

What are the physical size and reliability features of this converter?

The DCW12C-05 measures 31.8 x 20.3 x 12.2mm and uses a five-sided shield metal case. Mean Well specifies 100% full-load burn-in testing for this model. It also carries a 2-year warranty.

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Mean Well DCW12C-05 DC-DC Converter - 12W - 36~72V in ±5V out 1.2A
Mean Well

Mean Well DCW12C-05 DC-DC Converter - 12W - 36~72V in ±5V out 1.2A

Log in to see price

DCW12C-05 is the ±5V output model of this series: rated power 12W, typical efficiency 81%.

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
  • 2 years warranty
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