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Mean Well

Mean Well SCW05B-12 DC-DC Converter - 5W 18~36V DC in 12V out 470mA

SKU SCW05B-12
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End of Life, Succeeded by SCWN06B-12
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Overview

SCW05B-12 is the 12V output model of this series: rated power 5.6W, typical efficiency 82%.

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
  • Protections: Short circuit / Overload
  • Cooling by free air convection
  • Five-sided shield metal case
  • 100% burn-in test
  • Low cost / High reliability
  • Approvals: FCC / CE
  • 2 years warranty

Specifications

SCW05B-12Specifications from the official datasheet (2018-03-23 edition)Download datasheet PDF

OUTPUT

DC VOLTAGE
12V
CURRENT RANGE
94 ~ 470mA
RATED POWER
5.6W
RIPPLE & NOISE (max.)Note.2
60mVp-p
LINE REGULATIONNote.3
±0.5%
LOAD REGULATIONNote.4
±0.5%
VOLTAGE ACCURACY
±2.0%
SWITCHING FREQUENCY
50KHz min.

INPUT

VOLTAGE RANGE
18 ~ 36VDC
EFFICIENCY (Typ.)
82%
DC CURRENT Full load
301mA
DC CURRENT No load
22mA
FILTER
Pi network
PROTECTION
Fuse recommended

PROTECTION (Note. 5)

OVERLOAD
150 ~ 250% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
SHORT CIRCUIT
All output equipped with short circuit Protection type : Hiccup mode, recovers automatically after fault condition is removed

ENVIRONMENT

WORKING TEMP.
-40 ~ +71℃ (Refer to output load derating curve)
WORKING HUMIDITY
20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +105℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03% / ℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS
EAC TP TC 004 approved
WITHSTAND VOLTAGE
I/P-O/P:1KVDC
ISOLATION RESISTANCE
I/P-O/P: 100M Ohms / 500VDC / 25℃/ 70% RH
ISOLATION CAPACITANCE
80pF max.
EMC EMISSION
Compliance to EN55032 Class B, FCC part 15 Class B , EAC TP TC 020
EMC IMMUNITY
Compliance to EN61000-4-2,3,4,5,6,8, light industry level, criteria A , EAC TP TC 020

OTHERS

MTBF
900khrs min. MIL-HDBK-217F(25℃)
DIMENSION
31.8*20.3*12.2mm or 1.25"*0.80"*0.48" inch (L*W*H)
WEIGHT
15g
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

SCW05B-12 Mechanical Specification
Mechanical Specification

Downloads

FAQ

What applications is the Mean Well SCW05B-12 best suited for?

The SCW05B-12 is suited to low-power industrial and OEM equipment that needs a regulated 12V DC output from an 18~36V DC source. Typical fit is auxiliary power for control, monitoring, instrumentation, and embedded electronics where the load stays within its 5.6W rating.

Is the SCW05B-12 suitable for nominal 24V DC systems?

Yes. Its 18~36V DC input range makes it a fit for systems built around a nominal 24V DC supply, provided normal operating conditions stay inside that range. It converts that input to a regulated 12V DC output.

How much output power and current can this DC-DC converter provide?

This model is rated for 5.6W total output power with a 12V DC output. Its rated output current is 0.47A, so it is intended for lighter auxiliary loads rather than larger 12V devices.

What protection and isolation features does the SCW05B-12 include?

The SCW05B-12 includes short circuit and overload protection, which supports reliable operation in industrial electronic equipment. It also provides 1000VDC input-to-output isolation and a built-in EMI filter.

Can this converter operate in demanding temperature conditions?

This model is specified for operation from -40°C to 71°C, with output load derating at higher temperatures per the datasheet derating curve. That makes it suitable for a wide range of indoor industrial environments when the overall equipment design keeps the converter within its rated conditions.

When should I choose the SCW05B-12 instead of a higher-power 12V DC-DC converter?

Choose the SCW05B-12 when your application needs a regulated 12V output from an 18~36V DC input and the load stays within 5.6W or 0.47A. If the equipment requires more 12V current than that, a higher-power converter would be the better fit.

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Mean Well SCW05B-12 DC-DC Converter - 5W 18~36V DC in 12V out 470mA
Mean Well

Mean Well SCW05B-12 DC-DC Converter - 5W 18~36V DC in 12V out 470mA

Log in to see price

SCW05B-12 is the 12V output model of this series: rated power 5.6W, typical efficiency 82%.

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
  • Protections: Short circuit / Overload
  • Cooling by free air convection
  • Five-sided shield metal case
  • 100% burn-in test
  • Low cost / High reliability
  • Approvals: FCC / CE
  • 2 years warranty
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