💡 New range: Boke DALI-2 LED drivers | 10–240 W | 5-year warranty Explore the range

☎ 0800 88 87 86  |  +64 22 522 4414

Over 15 years experience of providing support of MEAN WELL Power Supplies

1 5

Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well

Mean Well SCW12B-12 DC-DC Converter - 12W 18~36V DC in 12V out 1A

SKU SCW12B-12
Log in to see price Trade pricing & online ordering for account holders
Log in or apply for a trade account →
In stock
|

Overview

SCW12B-12 is the 12V output model of this series: rated power 12W, typical efficiency 83%.

Features

  • 2:1 wide input range
  • 1500VDC I/O isolation
  • Built-in remote ON/OFF control
  • Built-in EMI filter
  • Protections: Short circuit / Overload
  • Cooling by free air convection
  • Five-sided shield metal case
  • 100% full load burn-in test
  • Low cost / High reliability
  • Modified models available: output 2.5V/3.3V
  • 2 years warranty

Specifications

SCW12B-12Specifications from the official datasheet (2024-08-02 edition)

OUTPUT

DC VOLTAGE
12V
CURRENT RANGE
200 ~ 1000mA
RATED POWER
12W
RIPPLE & NOISE (max.)Note.2
60mVp-p
LINE REGULATIONNote.3
±0.5%
LOAD REGULATIONNote.4
±0.5%
VOLTAGE ACCURACY
±2.0%
SWITCHING FREQUENCY
400KHz min.
EXTERNAL CAPACITANCE LOAD (max.)
220uF

INPUT

VOLTAGE RANGE
18 ~ 36VDC
EFFICIENCY (Typ.)
83%
DC CURRENT Full load
625mA
DC CURRENT No load
35mA
FILTER
Pi network
PROTECTION
Fuse recommended

PROTECTION (Note. 5)

OVERLOAD
110 ~ 180% 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 "Derating Curve")
WORKING HUMIDITY
20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +105℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.05% / ℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes

SAFETY

SAFETY STANDARDS
EAC TP TC 020/2011 approved
WITHSTAND VOLTAGE
I/P-O/P:1.5KVDC
ISOLATION RESISTANCE
I/P-O/P: 100M Ohms / 500VDC / 25℃/ 70% RH
ISOLATION CAPACITANCE
2200pF max.
EMC EMISSION
Compliance to BS EN/EN55032 Class A, FCC part 15 Class A , EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8 light industry level, criteria A , EAC TP TC 020

OTHERS

REMOTE CONTROL
Power ON: R.C. ~ -Vin > 4VDC or open ; Power OFF: R.C. ~ -Vin < 1VDC or short
MTBF
600Khrs min. MIL-HDBK-217F(25℃)
DIMENSION
31.8*20.3*12.2mm or 1.25"*0.80"*0.48" inch (L*W*H)
PACKING
17.5g ; 15pcs/per tube, 750pcs/50 tube/per carton
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

SCW12B-12 Mechanical Specification
Mechanical Specification
SCW12B-12 Packing
Packing

Downloads

FAQ

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

Yes, this converter accepts 18-36VDC 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 31.8 × 20.3 × 12.2 mm and weighs 17.5 g, 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 (with load derating at higher temperatures per the derating curve), 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 18-36VDC input, provide 12W constant-voltage output, and share the same 31.8 × 20.3 × 12.2 mm dimensions, 17.5 g 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.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

{ "id":8442692370731, "variants" :[{ "context":"default", "variant_id": 45712186442027, "sku":"SCW12B-12", "inventory_qty" : 2, "customer" :false, "custom_html" :"\u003ca class=\"text-current logged-out-price logged-out\" href=\"https:\/\/wellforces.co.nz\/customer_authentication\/redirect?locale=en\u0026region_country=NZ\"\u003e\n \u003cspan \u003ePlease \u003c\/span\u003e \u003cspan class=\"login-text\"\u003eLogin\u003c\/span\u003e \u003cspan\u003e for Pricing\u003c\/span\u003e\n \u003c\/a\u003e", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }
Mean Well SCW12B-12 DC-DC Converter - 12W 18~36V DC in 12V out 1A
Mean Well

Mean Well SCW12B-12 DC-DC Converter - 12W 18~36V DC in 12V out 1A

Log in to see price

SCW12B-12 is the 12V output model of this series: rated power 12W, typical efficiency 83%.

Features

  • 2:1 wide input range
  • 1500VDC I/O isolation
  • Built-in remote ON/OFF control
  • Built-in EMI filter
  • Protections: Short circuit / Overload
  • Cooling by free air convection
  • Five-sided shield metal case
  • 100% full load burn-in test
  • Low cost / High reliability
  • Modified models available: output 2.5V/3.3V
  • 2 years warranty
View product

  • Call us

    0800 88 87 86

  • Email us

    contact@wellforces.co.nz

  • Business Hours

    Mon-Fri 8:30am-5:00pm

  • Wholesale and Trade Account

    Let's grow together
Back to top