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Mean Well

Mean Well DCW12A-12 DC-DC Converter - 12W - 9~18V in ±12V out 500mA

SKU DCW12A-12
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Overview

DCW12A-12 is the ±12V output model of this series: rated power 12W, typical efficiency 84%.

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

DCW12A-12Specifications from the official datasheet (2024-08-02 edition)

OUTPUT

DC VOLTAGE
±12V
CURRENT RANGE
±100~ ±500mA
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.)
100uF

INPUT

VOLTAGE RANGE
9 ~ 18VDC
EFFICIENCY (Typ.)
84%
DC CURRENT Full load
1245mA
DC CURRENT No load
70mA
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

DCW12A-12 Mechanical Specification
Mechanical Specification
DCW12A-12 Packing
Packing

Downloads

FAQ

What is the Mean Well DCW12A-12 used for?

The DCW12A-12 is a 12W isolated DC-DC converter for applications that need a 9 to 18V DC input and a ±12V DC output. It is suited to compact industrial and embedded systems where regulated dual-output DC power and input-to-output isolation are required.

What are the key electrical ratings of the DCW12A-12?

This model is rated for 12W output power, with a 9 to 18V DC input range and ±12V output. The rated output current is 500 mA, and voltage set point accuracy is specified at ±2.0%.

Does the DCW12A-12 provide input-to-output isolation?

Yes, the DCW12A-12 provides 1500VDC input-to-output isolation. Its specification lists I/P-O/P withstand voltage at 1.5KVDC, along with isolation resistance of 100M Ohms at 500VDC.

What protection features are included in the DCW12A-12?

This converter includes short circuit and overload protection. Overload protection is specified at 110% to 180% with auto-recovery, and short circuit protection uses hiccup mode that recovers automatically after the fault is removed.

Can the DCW12A-12 be used in demanding temperature environments?

It is designed for a wide operating temperature range of -40 to +71°C, subject to the output derating curve. Storage temperature is specified from -40 to +105°C, which supports use in demanding industrial environments.

How compact is the Mean Well DCW12A-12?

The DCW12A-12 has compact dimensions of 31.8 x 20.3 x 12.2 mm and weighs 17.5 g. It also uses a five-sided shield metal case, which helps combine small size with mechanical protection and shielding.

What compliance and reliability features does the DCW12A-12 offer?

The unit includes a built-in EMI filter, 100% full load burn-in testing, and a two-year warranty. EMC compliance is listed to EN55032 Class A, EN61000-4-2,3,4,5,6,8, and FCC Part 15 Class A.

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Mean Well

Mean Well DCW12A-12 DC-DC Converter - 12W - 9~18V in ±12V out 500mA

Log in to see price

DCW12A-12 is the ±12V output model of this series: rated power 12W, typical efficiency 84%.

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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