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Mean Well

Mean Well SKA15A-12 DC-DC Converter - 9.9W - 9~18V in 12V out 1.25A

SKU SKA15A-12
$22.90 USD
Shipping calculated at checkout.
Available to order
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Overview

SKA15A-12 is the 12V output model of this series: rated power 15W, typical efficiency 82%.

Features

  • 2:1 wide input range
  • 4:1 wide input range(option)
  • 1500VDC I/O isolation
  • 3000VDC I/O isolation(option)
  • Built-in EMI filter
  • Protections: Short circuit / Overload
  • Cooling by free air convection
  • Six-sided shield metal case
  • 100% burn-in test
  • Low cost / High reliability
  • Approvals: FCC / EAC / CE / UKCA
  • 2 years warranty

Specifications

SKA15A-12Specifications from the official datasheet (2024-08-02 edition)

OUTPUT

DC VOLTAGE
12V
CURRENT RANGE
125 ~ 1250mA
RATED POWER
15W
RIPPLE & NOISE (max.)Note.2
60mVp-p
LINE REGULATIONNote.3
±0.2%
LOAD REGULATIONNote.4
±0.5%
VOLTAGE ACCURACY
±2.0%
SWITCHING FREQUENCY
150KHz min.
EXTERNAL CAPACITANCE LOAD (max.)
1800uF

INPUT

VOLTAGE RANGE
9 ~ 18VDC
EFFICIENCY (Typ.)
82%
DC CURRENT Full load
1700mA
DC CURRENT No load
20mA
FILTER
Pi network
PROTECTION
Fuse recommended

PROTECTION (Note. 5)

OVER CURRENT
110% ~ 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 "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./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS
EAC TP TC 020/2011approved
WITHSTAND VOLTAGE
I/P-O/P:1.5KVDC
ISOLATION RESISTANCE
I/P-O/P: 100M Ohms / 500VDC / 25℃/ 70% RH
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

MTBF
300Khrs min. MIL-HDBK-217F(25℃)
DIMENSION
50.8*25.4*11.27 mm or 2"*1"*0.44" inch (L*W*H)
PACKING
31.2g ; 10pcs/per tube, 400pcs/40 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 10% 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

SKA15A-12 Mechanical Specification
Mechanical Specification
SKA15A-12 Packing
Packing

Downloads

FAQ

Can I use the SKA15A-12 for 12V automation accessories powered from a 9-18VDC source?

Yes, this model converts 9-18VDC input to a constant 12V output. It provides up to 1.25A with a 15W rating, which makes it suitable for lower-power 12V control accessories and auxiliary circuits within that load limit.

Is the SKA15A-12 suitable for 12V relays, indicator devices, or control-side peripherals?

It is a fit for 12V devices that need regulated constant-voltage output and do not exceed 1.25A. Because the total output power is 15W, it is better matched to lighter-duty 12V peripherals than to larger 12V loads.

Can this converter be used for small 12V monitoring or instrumentation circuits in industrial equipment?

Yes, the 12V constant-voltage output suits monitoring and instrumentation sections that run on 12V from a 9-18VDC source. The 1.25A current limit and 15W rating define it as a compact auxiliary supply rather than a high-power 12V source.

Is the SKA15A-12 appropriate when I need a small 12V converter inside a control enclosure?

The unit measures 50.8 × 25.4 × 11.27 mm and weighs 31.2g, so it is sized for compact equipment layouts. That makes it practical for control assemblies where 12V conversion has to fit into a limited footprint.

Can the SKA15A-12 handle cold or hot operating conditions, and is it outdoor rated?

Its specified operating range is -40°C to +71°C, which supports use across a broad industrial temperature span. No IP rating is listed, so it should be used in protected enclosures rather than in directly exposed outdoor conditions.

How does the SKA15A-12 differ from the other SKA15A versions?

The SKA15A family shares the same 9-18VDC input range, but the output options differ. SKA15A-033 is 3.3V at 3A (9.9W), SKA15A-05 is 5V at 3A (15W), SKA15A-12 is 12V at 1.25A (15W), and SKA15A-15 is 15V at 1A (15W).

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Mean Well SKA15A-12 DC-DC Converter - 9.9W - 9~18V in 12V out 1.25A
Mean Well

Mean Well SKA15A-12 DC-DC Converter - 9.9W - 9~18V in 12V out 1.25A

$22.90 USD

SKA15A-12 is the 12V output model of this series: rated power 15W, typical efficiency 82%.

Features

  • 2:1 wide input range
  • 4:1 wide input range(option)
  • 1500VDC I/O isolation
  • 3000VDC I/O isolation(option)
  • Built-in EMI filter
  • Protections: Short circuit / Overload
  • Cooling by free air convection
  • Six-sided shield metal case
  • 100% burn-in test
  • Low cost / High reliability
  • Approvals: FCC / EAC / CE / UKCA
  • 2 years warranty
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