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Mean Well

Mean Well SKM50B-05 DC-DC Converter - 50W - 18~36V in 5V out 10A

SKU SKM50B-05
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Overview

SKM50B-05 is the 5V 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

SKM50B-05Specifications from the official datasheet (2024-08-02 edition)

OUTPUT

DC VOLTAGE
5V
CURRENT RANGE
1 ~ 10A
RATED POWER
50W
RIPPLE & NOISE (max.)Note.2
60mVp-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.)
±10%

INPUT

VOLTAGE RANGE
B: 18 ~ 36VDC
UNDER VOLTAGE SHUTDOWN
B: 16VDC
EFFICIENCY (Typ.)
91%
DC CURRENT Full load
2300mA
DC CURRENT No load
110mA
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.)
>40 ~ 50VDC
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

SKM50B-05 Mechanical Specification
Mechanical Specification
SKM50B-05 Packing
Packing

Downloads

FAQ

Can I use the Mean Well SKM50B-05 to power 5V industrial control electronics from an 18-36VDC source?

Yes. The SKM50B-05 accepts 18-36VDC input and provides a constant 5V output at up to 10A, with 50W total output power. That makes it suitable for industrial control electronics that require a regulated 5V rail within those input and load limits.

Is this converter suitable for embedded systems that need a stable 5V supply in compact equipment?

Yes. It is a constant-voltage 5V converter rated for up to 10A and 50W, so it fits embedded systems that need a regulated 5V supply within that load range. Its compact 50.8 × 25.4 × 13.7 mm size and 0.043 kg weight also help where space is limited.

Can this model be used for automation or IT hardware that runs on 5V DC?

It can be used where the equipment needs a constant 5V output and the source available is 18-36VDC. The unit delivers up to 10A with 50W output, so it fits 5V automation or IT hardware that stays within those electrical limits.

Is the SKM50B-05 appropriate for harsh temperature environments or outdoor use?

It is rated for operation from -40°C to +75°C, so it can handle a wide temperature range. However, the provided specs list FCC, EAC, CE, and UKCA approvals but do not list an IP rating, so outdoor suitability is not established by the information provided.

How does the SKM50B-05 compare with the other SKM50B series models?

All three listed models are 50W converters in the same series. The SKM50B-05 provides 5V at 10A, the SKM50B-12 provides 12V at 4.17A, and the SKM50B-15 provides 15V at 3.33A. The main difference is the output voltage and corresponding output current.

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Mean Well SKM50B-05 DC-DC Converter - 50W - 18~36V in 5V out 10A
Mean Well

Mean Well SKM50B-05 DC-DC Converter - 50W - 18~36V in 5V out 10A

Log in to see price

SKM50B-05 is the 5V 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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