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Mean Well

Mean Well SKA40A-12 DC-DC Converter - 35W - 9~18V in 12V out 3.33A

SKU SKA40A-12
$47.46 USD
Shipping calculated at checkout.
In stock
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Overview

SKA40A-12 is the 12V output model of this series: rated power 40W, typical efficiency 90%.

Features

  • 2:1 wide input range
  • High efficiency up to 92%
  • 1500VDC I/O isolation
  • Built-in EMI filter
  • Built-in remote ON / OFF control
  • Built-in remote sense
  • Trimming output ±10%
  • Protections: Short circuit / Overload / Over voltage
  • Cooling by free air convection
  • Six-sided shield metal case
  • 100% burn-in test
  • Low cost / High reliability
  • Output 3.3V/9V available
  • Approvals: FCC / EAC / CE / UKCA
  • 2 years warranty

Specifications

SKA40A-12Specifications from the official datasheet (2024-08-02 edition)

OUTPUT

DC VOLTAGE
12V
CURRENT RANGE
0.3 ~ 3.33A
RATED POWER
40W
RIPPLE & NOISE (max.)Note.2
80mVp-p
LINE REGULATIONNote.3
±0.5%
LOAD REGULATIONNote.4
±0.5%
VOLTAGE ACCURACY
±2.0%
SWITCHING FREQUENCY
200KHz min.
EXTERNAL CAPACITANCE LOAD (max.)
1000uF
EXTERNAL TRIM Adj. RANGE(Typ.)
±10%

INPUT

VOLTAGE RANGE
9 ~ 18VDC
EFFICIENCY (Typ.)
90%
DC CURRENT Full load
3850mA
DC CURRENT No load
150mA
FILTER
Pi network
REMOTE CONTROL
Power ON : R.C ~ -Vin > 2.5V ~ 75VDC or open circuit ; Power OFF : R.C ~ -Vin < 0.5VDC or short
PROTECTION
Fuse recommended

PROTECTION (Note. 5)

OVER CURRENT
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
OVER VOLTAGE
5Vo : 7V ~ 8.95V ; 12Vo : 15V ~ 19.2V ; 15Vo : 18V ~ 23.3V Protection type : Clamp by TVS diode

ENVIRONMENT

WORKING TEMP.
-40 ~ +80℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-55 ~ +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 020/2011 (EAC TP TC 004 for 48Vin type only) approved
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

DIMENSION
50.8*50.8*11.0 mm or 2"*2"*0.43" inch (L*W*H)
PACKING
50g ; 5pcs/per tube, 200pcs/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

SKA40A-12 Mechanical Specification
Mechanical Specification
SKA40A-12 Packing
Packing

Downloads

FAQ

Can I use the SKA40A-12 for 12V industrial sensors, relays, or control modules in a 9-18VDC system?

This unit delivers constant-voltage 12V output at up to 3.33A with 40W capacity. It is a match for 12V industrial or automation loads that stay within those output limits and use a 9-18VDC input source.

Is the SKA40A-12 suitable for powering 12V embedded or communications equipment?

The listed output is a regulated 12V rail with up to 3.33A available. That fits embedded or communications hardware that requires 12V and remains within the 40W maximum output.

Can the SKA40A-12 be used in mobile or battery-adjacent control equipment with a 9-18VDC input range?

Its published input range is 9-18VDC, and it converts that to a constant 12V output. For control equipment operating in that source window, the main sizing limits are 40W total power and 3.33A output current.

Does this converter fit compact automation assemblies that need moderate 12V power?

The housing measures 50.8 × 50.8 × 11.0 mm and weighs 50g. Those dimensions can help when integrating a 12V, 40W converter into smaller embedded or industrial assemblies.

Is the SKA40A-12 intended for indoor or outdoor use?

The specified operating temperature range is -40°C to +80°C, which covers demanding temperature conditions. No IP rating is provided in the specs, so exposed outdoor suitability is not confirmed from the published data.

How does the SKA40A-12 compare with the other SKA40A output options?

The SKA40A-12 is the 12V version in the series, rated at 40W and 3.33A. The SKA40A-05 is 35W with 5V at 7A, while the SKA40A-15 is 40W with 15V at 2.67A.

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Mean Well SKA40A-12 DC-DC Converter - 35W - 9~18V in 12V out 3.33A
Mean Well

Mean Well SKA40A-12 DC-DC Converter - 35W - 9~18V in 12V out 3.33A

$47.46 USD

SKA40A-12 is the 12V output model of this series: rated power 40W, typical efficiency 90%.

Features

  • 2:1 wide input range
  • High efficiency up to 92%
  • 1500VDC I/O isolation
  • Built-in EMI filter
  • Built-in remote ON / OFF control
  • Built-in remote sense
  • Trimming output ±10%
  • Protections: Short circuit / Overload / Over voltage
  • Cooling by free air convection
  • Six-sided shield metal case
  • 100% burn-in test
  • Low cost / High reliability
  • Output 3.3V/9V available
  • Approvals: FCC / EAC / CE / UKCA
  • 2 years warranty
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