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Mean Well DCW05B-12 DC-DC Converter - 5W - 18~36V in ±12V out

SKU:

DCW05B-12

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Description

Features

2: 1 wide input range

4: 1 wide input range (option)

1000VDC I / O isolation

3000VDC I / O isolation (option)

Built-in EMI filter

Protection: 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

General Specification

Voltage set point accuracy	± 2% (max.)
Line regulation	± 0.5% (max.)
Load regulation	± 0.5% (max.) @ 10 ~ 100% load
Overload protection	150% ~ 250%, auto-recovery
Efficiency	85% (typical)
Short circuit protection	Continuous, auto-recovery
I / O isolation voltage	1000VDC (min.)
I / O isolation resistance	100MQ(min.)@500VDC
Isolation capacitance	80pF (max.)
Working temperature	-40 ~ + 71°C (refer to output derating curve)
Storage temperature	-40°C to + 105°C
EMC	Compliance to EN55022 class B, EN61000-4-2,3,4,5,6,8, FCC part15 class B
Temp. Coefficient	± 0.03% / ° C (max.)
Dimension (LxWxH) (mm)	1.25" x 0.8" x 0.48"
Case material	Five-sided shield metal case

Specifications

Brand

Mean Well
Series

DCW Series
Power Rating

5 Watt
Output Voltage

12 Volt
Rated Current

0.23 Ampere
Input Voltage

18V~36V
Standards Met

CE,EMC,FCC
Operation Mode

Constant Voltage
Operating Temperature

-40°C~71°C
Warranty

2 Year
Length

3.18 cm
Width

2.03 cm
Height

1.22 cm
Weight

0.02 kg

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Frequently Asked Questions

What are the input and output ratings of the Mean Well DCW05B-12?

The DCW05B-12 is a 5W DC-DC converter with an 18 to 36V DC input range. Its output is ±12V DC, and the rated current is 230mA. This makes it suitable for applications that need dual-output DC power from a nominal 24V input range.

What protection features does the DCW05B-12 include?

This model includes short circuit protection with continuous auto-recovery and overload protection with auto-recovery. The overload protection range is specified at 150% to 250%. These protections help support reliable operation in demanding electronic systems.

Is the DCW05B-12 designed for industrial or noise-sensitive applications?

Yes, this converter includes a built-in EMI filter and lists EMC compliance to EN55022 Class B, EN61000-4 series standards, and FCC Part 15 Class B. It also uses a five-sided shield metal case. Those features make it a practical option where compact isolated DC conversion and controlled EMI performance are important.

Can the Mean Well DCW05B-12 be used in harsh temperature environments?

The specified operating temperature range is -40°C to +71°C, subject to the output derating curve. Its storage temperature range is -40°C to +105°C. That allows it to fit many industrial and enclosed equipment environments where wide temperature tolerance is required.

Does the DCW05B-12 provide isolation between input and output?

Yes, the standard input-to-output isolation voltage is 1000V DC minimum. The specification also lists 100MΩ minimum isolation resistance at 500V DC and 80pF maximum isolation capacitance. This isolation can be useful in systems that need separation between power domains.

How accurate and efficient is the DCW05B-12?

The voltage set point accuracy is specified at ±2% maximum. Line regulation and load regulation are each rated at ±0.5% maximum, with load regulation measured across 10% to 100% load. Typical efficiency is 85%, which is solid for a compact 5W isolated DC-DC converter.

Model	Power	Voltage	Current	IP Rating
Mean Well DCW05C-15 DC-DC Converter - 5W - 36~72V in ±15V out	5W	15V	0.19A	—	View
Mean Well DCW05C-12 DC-DC Converter - 5W - 36~72V in ±12V out	5W	12V	0.23A	—	View
Mean Well DCW05C-05 DC-DC Converter - 5W - 36~72V in ±5V out	5W	5V	0.5A	—	View
Mean Well DCW05B-15 DC-DC Converter - 5W - 18~36V in ±15V out	5W	15V	0.19A	—	View
Mean Well DCW05B-05 DC-DC Converter - 5W - 18~36V in ±5V out	5W	5V	0.5A	—	View
Mean Well DCW05A-15 DC-DC Converter - 5W - 9~18V in ±15V out	5W	15V	0.19A	—	View
Mean Well DCW05A-12 DC-DC Converter - 5W - 9~18V in ±12V out	5W	12V	0.23A	—	View
Mean Well DCW05A-05 DC-DC Converter - 5W - 9~18V in ±5V out	5W	5V	0.5A	—	View

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