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Mean Well

Mean Well SKM50C-12 DC-DC Converter - 50W - 36~75V in 12V out 4.17A

SKU SKM50C-12
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Overview

SKM50C-12 is the 12V output model of this series: rated power 50W, typical efficiency 91%.

Features

  • 2"x1" compact size
  • 2:1 wide input range
  • High efficiency up to 92%
  • 1500VDC I/O isolation
  • Built-in remote ON/OFF control
  • Built-in trimming output
  • Comply with CE / FCC without external components
  • Protections: Short circuit / Overload / Input and Output Over voltage
  • 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

SKM50C-12Specifications from the official datasheet (2024-08-02 edition)

OUTPUT

DC VOLTAGE
12V
CURRENT RANGE
0.41 ~ 4.17A
RATED POWER
50W
RIPPLE & NOISE (max.)Note.2
80mVp-p
LINE REGULATIONNote.3
±0.2%
LOAD REGULATIONNote.4
±0.5%
VOLTAGE ACCURACY
±2.0%
SWITCHING FREQUENCY
300KHz typ.
EXTERNAL CAPACITANCE LOAD (max.)
1000uF
EXTERNAL TRIM Adj. RANGE(Typ.)
-20 ~ +10%

INPUT

VOLTAGE RANGE
C: 36 ~ 75VDC
UNDER VOLTAGE SHUTDOWN
C: 32VDC
EFFICIENCY (Typ.)
91%
DC CURRENT Full load
1160mA
DC CURRENT No load
60mA
FILTER
Pi network
REMOTE CONTROL
Power ON : R.C ~ -Vin > 2.5V ~ 30VDC 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 Input(Typ.)
>80 ~ 100VDC input voltage Protection type : Shut down o/p voltage, recovers automatically after fault condition is removed
OVER VOLTAGE Output(Typ.)
5Vo : 7V ~ 8.95V ; 12Vo : 15V ~ 19.2V ; 15Vo : 18V ~ 23.3V Protection type : Clamp by TVS diode

ENVIRONMENT

WORKING TEMP.
-40 ~ +75℃ (Refer to "Derating Curve")
CASE TEMP.
+115℃ max.
WORKING HUMIDITY
20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-55 ~ +125℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03% / ℃ (0 ~ 55℃)
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 EMISSIONNote.5
Compliance to BS EN/EN55032 Class A, FCC part 15 Class A without external components , 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
700Khrs min. MIL-HDBK-217F(25℃)
DIMENSION
50.8*25.4*13.7 mm or 2"*1"*0.54" inch (L*W*H)
PACKING
43g ; 10pcs/per tube, 320pcs/32 tube/per carton
Test conditions and notes6
  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.Consult MEAN WELL for deployment of Class B.
  6. 6.Please prevent the converter from operating in overload or short circuit condition for more than 30 seconds.

Technical drawings

SKM50C-12 Mechanical Specification
Mechanical Specification
SKM50C-12 Packing
Packing

Downloads

FAQ

Can I use the SKM50C-12 for 12V PLC accessories or industrial control loads on a 36-75VDC input?

Yes, this converter is intended for constant-voltage 12V output when the source falls within 36-75VDC. It supports up to 4.17A and 50W, which fits many control and automation loads that need a regulated 12V rail.

Is the SKM50C-12 suitable for embedded 12V electronics in mobile or industrial systems?

It can be suitable when the equipment needs a constant 12V supply and the total load stays within 4.17A or 50W. Its wide 36-75VDC input range and compact 50.8 × 25.4 × 13.7 mm size make it relevant where space and input flexibility both matter.

Can this model power 12V monitoring, relay, or interface modules in automation equipment?

Yes, if those modules require constant-voltage 12V and their combined demand is within 4.17A and 50W. That makes it a reasonable choice for auxiliary 12V rails in industrial or embedded assemblies using a 36-75VDC source.

Is the SKM50C-12 a fit for compact instrumentation that needs 12V output but limited installation space?

It can be, because the converter is compact at 50.8 × 25.4 × 13.7 mm and weighs 0.043 kg. It provides a constant 12V output up to 4.17A, so the electrical and physical fit both need to line up with the instrument design.

How does the SKM50C-12 differ from the 5V and 15V versions in the same family?

All listed SKM50C models are rated for 50W with 36-75VAC input, but their output combinations differ. The SKM50C-05 is 5V at 10A, the SKM50C-12 is 12V at 4.17A, and the SKM50C-15 is 15V at 3.33A. The choice depends on the output voltage your equipment requires.

Can the SKM50C-12 handle wide temperature swings, and is it suitable for exposed outdoor use?

The operating temperature range is -40°C to +75°C, so it is specified for substantial hot and cold variation. The listed specs do not provide an IP rating, which means enclosure protection for exposed outdoor conditions is not defined here.

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Mean Well SKM50C-12 DC-DC Converter - 50W - 36~75V in 12V out 4.17A
Mean Well

Mean Well SKM50C-12 DC-DC Converter - 50W - 36~75V in 12V out 4.17A

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SKM50C-12 is the 12V output model of this series: rated power 50W, typical efficiency 91%.

Features

  • 2"x1" compact size
  • 2:1 wide input range
  • High efficiency up to 92%
  • 1500VDC I/O isolation
  • Built-in remote ON/OFF control
  • Built-in trimming output
  • Comply with CE / FCC without external components
  • Protections: Short circuit / Overload / Input and Output Over voltage
  • 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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