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Mean Well SCW12B-12 DC-DC Converter - 12W 18~36V DC in 12V out

SKU:

SCW12B-12

$18.90 USD

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Description

Features

2: 1 wide input range

1500VDC I / O isolation

Built-in remote ON / OFF control

Modified models available: output 2.5V / 3.3V

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	110% to 180%, auto-recovery
Efficiency	85% (typical)
Short circuit protection	Continuous, auto-recovery
I / O isolation voltage	1500VDC (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

SCW Series
Power Rating

12 Watt
Output Voltage

12 Volt
Rated Current

1 Ampere
Input Voltage

18V~36V
No of Output

1
Dimming Control

None
Standards Met

EAC
Operation Mode

Constant Voltage
Operating Temperature

-40°C~71°C
Warranty

2 Year
Length

1.25 in
Width

0.8 in
Height

0.48 in
Weight

0.03 lb

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Frequently Asked Questions

Can I use the SCW12B-12 for 12V loads in a 24V-class industrial system?

Yes, this converter accepts 18-36VAC input and provides a regulated 12V constant-voltage output. Its output is rated at 1A and 12W, which suits lower-power 12V industrial electronics within that load range.

Is the SCW12B-12 a fit for 12V automation modules or HMI support circuits?

It can be a good fit for compact 12V automation electronics that need stable constant-voltage power and draw no more than 1A. The 12W rating makes it appropriate for smaller control and interface loads rather than larger 12V devices.

Can this model be used in embedded systems where board space is limited?

Yes, the SCW12B-12 measures 31.75 × 20.32 × 12.19 mm and weighs 0.015 kg, so it is well suited to compact embedded or control assemblies. That size is useful when a regulated 12V rail is needed in a small package.

Is the SCW12B-12 suitable for indoor-only use or wider environmental conditions?

The converter is rated for operation from -40°C to +71°C, which covers a wide temperature range for industrial indoor environments. Because no IP rating is listed in the provided specs, sealed outdoor suitability cannot be confirmed from this product data.

What are the differences between SCW12B-12 and its sibling models?

SCW12B-05, SCW12B-12, and SCW12B-15 all use 18-36VAC input, provide 12W constant-voltage output, and share the same 31.75 × 20.32 × 12.19 mm dimensions, 0.015 kg weight, -40°C to +71°C operating range, EAC certification, and 2-year warranty. The output options are 5V 2.4A, 12V 1A, and 15V 0.8A respectively.

Model	Power	Voltage	Current	IP Rating	Price
Mean Well SCW12C-15 DC-DC Converter - 12W 36~72V DC in 15V out	12W	15V	2.4A	Indoor	$18.90	View
Mean Well SCW12C-12 DC-DC Converter - 12W 36~72V DC in 12V out	12W	12V	0.8A	Indoor	$18.90	View
Mean Well SCW12C-05 DC-DC Converter - 12W 36~72V DC in 5V out	12W	5V	1A	Indoor	$17.20	View
Mean Well SCW12B-15 DC-DC Converter - 12W 18~36V DC in 15V out	12W	15V	0.8A	Indoor	$18.90	View
Mean Well SCW12B-05 DC-DC Converter - 12W 18~36V DC in 5V out	12W	5V	2.4A	Indoor	$18.90	View
Mean Well SCW12A-15 DC-DC Converter - 12W 9~18V DC in 15V out	12W	15V	0.8A	Indoor	$18.90	View
Mean Well SCW12A-12 DC-DC Converter - 12W 9~18V DC in 12V out	12W	12V	1A	Indoor	$18.90	View
Mean Well SCW12A-05 DC-DC Converter - 12W 9~18V DC in 5V out	12W	5V	2.4A	Indoor	$18.90	View