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Mean Well DCWN03W8-05 DC-DC Converter - 3W 9~75V DC in ±5V out

8:1(9~75VDC) ultra-wide input range, no minimum load required, 3KVdc I/O isolation
SKU:
DCWN03W8-05

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Description

Features:

  • DIP24 package with industry standard pinout
  • 8:1(9~75Vdc) ultra-wide input range
  • Operating temperature range -40 ~ +95℃
  • No minimum load required
  • Comply to BS EN/EN55032 radiated Class B without additional components
  • High efficiency up to 84%
  • Protections: Short circuit (Continuous) / Overload / Over voltage / UVLO
  • Remote ON/OFF control (Optional)
  • 3KVdc I/O isolation
  • 3 years warranty

    General Specification:

 
Input Voltage
Nominal 12V, 24V,36V,48V,72V (9 - 75V)
Protection
1A Fast-Acting Type
Over Load Protection
110 - 230% rated output power
Protection type : Hiccup mode, recovers automatically after fault condition is removed
Short Circuit Protection
Protection type : Continuous, automatic recovery
Over Voltage Protection
Protection type : Clamp by zener diode
Under Voltage Lockout
Start-up voltage: 8.8Vdc
Shutdown voltage: 8Vdc
Withstand Voltage
I/P-O/P:3KVdc
Operating Temperature
-40 - +95℃ (Refer to "Derating Curve")
Safety Standard
EAC TP TC 020/2011 approved
Dimension (LxWxH)
31.8 x 20.3 x 10.2mm

Specifications

  • Brand
    Mean Well
  • Series
    DCWN Series
  • Power Rating
    3 Watt
  • Output Voltage
    5 Volt
  • Rated Current
    0.00 Ampere
  • Input Voltage
    9V~75V
  • Standards Met
    CE,EAC
  • Operation Mode
    Constant Voltage
  • Operating Temperature
    -40°C~95°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 kind of applications is the Mean Well DCWN03W8-05 suited for?

The DCWN03W8-05 is a 3W isolated DC-DC converter designed for equipment that needs regulated ±5V output from a very wide DC input range. Its 9 to 75V DC input window makes it relevant for industrial, control, and distributed power applications where supply voltage can vary across 12V, 24V, 36V, 48V, or 72V nominal systems.

What input range does the DCWN03W8-05 support?

This model supports an ultra-wide 8:1 input range of 9 to 75V DC. That allows one converter model to cover multiple nominal DC bus voltages, including 12V, 24V, 36V, 48V, and 72V systems.

Does the DCWN03W8-05 provide isolation between input and output?

Yes. The DCWN03W8-05 provides 3KV DC input-to-output isolation, which is an important specification in systems that need electrical separation between the source side and the powered circuitry. This can help in designs where noise isolation or protection between stages is required.

Can the DCWN03W8-05 be used in demanding temperature conditions?

This converter is rated for operation from -40°C to +95°C, subject to the product's derating curve. That wide operating range makes it a stronger fit for industrial environments than products limited to room-temperature use.

What protection features are included in the DCWN03W8-05?

The DCWN03W8-05 includes short circuit, overload, over voltage, and under-voltage lockout protection. Short circuit protection is continuous with automatic recovery, and overload protection operates in hiccup mode with automatic recovery after the fault is removed.

How does the DCWN03W8-05 differ from a narrower-input DC-DC converter?

Its main differentiator is the 9 to 75V DC ultra-wide input range in a compact DIP24 package. Compared with narrower-input models, it gives more flexibility when the source voltage may vary across different DC systems while still providing 3W output, up to 84% efficiency, and 3KV DC isolation.

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Mean Well DCWN03W8-05 DC-DC Converter - 3W 9~75V DC in ±5V out
Mean Well

Mean Well DCWN03W8-05 DC-DC Converter - 3W 9~75V DC in ±5V out

Features:

 
Input Voltage
Nominal 12V, 24V,36V,48V,72V (9 - 75V)
Protection
1A Fast-Acting Type
Over Load Protection
110 - 230% rated output power
Protection type : Hiccup mode, recovers automatically after fault condition is removed
Short Circuit Protection
Protection type : Continuous, automatic recovery
Over Voltage Protection
Protection type : Clamp by zener diode
Under Voltage Lockout
Start-up voltage: 8.8Vdc
Shutdown voltage: 8Vdc
Withstand Voltage
I/P-O/P:3KVdc
Operating Temperature
-40 - +95℃ (Refer to "Derating Curve")
Safety Standard
EAC TP TC 020/2011 approved
Dimension (LxWxH)
31.8 x 20.3 x 10.2mm

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