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Mean Well DCWN03C-12 DC-DC Converter - 3W 36~72V DC in 12V out

SKU:
DCWN03C-12

|

Description

Features

DIP24 package with industry-standard pinout
2:1 wide input range
Operating temperature range -40~+90°C 
No minimum load required
Comply to BS EN/EN55032 radiated Class A without additional components
High efficiency up to 87%
Protections: Short circuit(Continuous)/Overload/Input under voltage
3KVDC I/O isolation
3 years warranty

General Specification 

Voltage set point accuracy ±1.5% (max.)
Line regulation ±0.5% (max.)
Load regulation Single output models:±0.5%, Dual output models:±1%
Overload protection 120%~250%, auto-recovery
Efficiency 87% (typical)
Short circuit protection Continuous, auto-recovery
I/O isolation voltage I/P-O/P:3KVDC
I/O isolation resistance I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
Isolation capacitance 250pF (max.)
Working temperature -40~+90°C
Storage temperature -40°C to +105°C
EMC Compliance to EN55032 class A, EN61000-4-2,3,4,5,6,8
Temp. Coefficient 0.03% / ℃ (0 ~ 85℃)
Dimension (LxWxH) (mm) 31.8*20.3*10.2mm (1.25*0.8*0.4 inch)
Case material Non-conductive black plastic(UL 94V-0 rated)

Specifications

  • Brand
    Mean Well
  • Series
    DCWN Series
  • Power Rating
    3 Watt
  • Output Voltage
    12 Volt
  • Rated Current
    0.12 Ampere
  • Input Voltage
    36V~72V
  • Standards Met
    CE,EAC
  • Operation Mode
    Constant Voltage
  • Operating Temperature
    -40°C~90°C
  • Warranty
    3 Year
  • Length
    3.18 cm
  • Width
    2.03 cm
  • Height
    1.02 cm
  • Weight
    0.01 kg

File Downloads

::specification::

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Frequently Asked Questions

What is the DCWN03C-12 typically used for?

The Mean Well DCWN03C-12 is typically used for isolated low-power DC-DC conversion from a 36-72V DC source to a 12V output. With 3W rated power and 0.125A output current, it is suited to compact systems that need an isolated 12V rail from a higher-voltage DC source.

Is the DCWN03C-12 a good fit when the source voltage is 36-72V and the load needs 12V?

Yes. The DCWN03C-12 is designed for exactly that conversion profile, provided the output demand remains within its 3W and 0.125A rating.

Can the DCWN03C-12 be used for compact isolated 12V support power?

Yes. Its published features include 3KVDC I/O isolation, a DIP24 package, and no minimum load requirement, which make it suitable for isolated low-power 12V auxiliary rails in compact designs.

Is the DCWN03C-12 suitable for broad temperature conditions?

It is rated for -40°C to +90°C working temperature, which supports use in demanding protected electronic environments. It should still be used inside equipment or similar protected installations rather than exposed outdoor use.

How does the DCWN03C-12 compare with the other DCWN03 12V options?

The DCWN03C-12 provides 3W at 12V from a 36-72V input range. Other 12V DCWN03 variants serve 9-18V, 18-36V, and 4.5-9V inputs. The choice mainly depends on the source-side voltage range available in your system.

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Mean Well DCWN03C-12 DC-DC Converter - 3W 36~72V DC in 12V out
Mean Well

Mean Well DCWN03C-12 DC-DC Converter - 3W 36~72V DC in 12V out

Features

DIP24 package with industry-standard pinout
2:1 wide input range
Operating temperature range -40~+90°C 
No minimum load required
Comply to BS EN/EN55032 radiated Class A without additional components
High efficiency up to 87%
Protections: Short circuit(Continuous)/Overload/Input under voltage
3KVDC I/O isolation
3 years warranty

General Specification 

Voltage set point accuracy ±1.5% (max.)
Line regulation ±0.5% (max.)
Load regulation Single output models:±0.5%, Dual output models:±1%
Overload protection 120%~250%, auto-recovery
Efficiency 87% (typical)
Short circuit protection Continuous, auto-recovery
I/O isolation voltage I/P-O/P:3KVDC
I/O isolation resistance I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
Isolation capacitance 250pF (max.)
Working temperature -40~+90°C
Storage temperature -40°C to +105°C
EMC Compliance to EN55032 class A, EN61000-4-2,3,4,5,6,8
Temp. Coefficient 0.03% / ℃ (0 ~ 85℃)
Dimension (LxWxH) (mm) 31.8*20.3*10.2mm (1.25*0.8*0.4 inch)
Case material Non-conductive black plastic(UL 94V-0 rated)
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