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Mean Well

Mean Well MHB100-48S05 DC-DC Converter - 100W - 36~75V in 5V out 20A

SKU MHB100-48S05
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Overview

MHB100-48S05 is the 5V output model of this series: rated power 100W, typical efficiency 86%.

Features

  • Half-brick size (2.28"X2.4"X0.5") with industry standard pin out
  • 2:1 wide input range
  • Protections: Short circuit / Over current / Over voltage / Over temperature
  • High efficiency up to 89%
  • 1500VDC I/O isolation
  • Built-in remote ON/OFF control
  • Built-in remote sense function
  • Trimming output ±10%
  • Five-sided shield metal case
  • Optional heat sinks for extended operating temperature
  • Output 3.3V/15V available
  • Approvals: UL / CUL / EAC / CE / UKCA
  • 3 years warranty

Specifications

MHB100-48S05Specifications from the official datasheet (2024-04-30 edition)

OUTPUT

DC VOLTAGE
5V
CURRENT RANGE
0 ~ 20A
RATED POWER
100W
RIPPLE & NOISE (max.)Note.2
100mVp-p
VOLTAGE ACCURACYNote.3
±1.0%
LINE REGULATION
±0.2%
LOAD REGULATION
±0.2%
SWITCHING FREQUENCY (Typ.)
500KHz
EXTERNAL TRIM ADJ. RANGE (Typ.)
±10%
EXTERNAL CAPACITIVE LOAD (max.)
20000uF

INPUT

RATED DC INPUT
48VDC
VOLTAGE RANGE
36 ~ 75VDC
SURGE VOLTAGE (100ms max.)
100VDC
UNDER VOLTAGE LOCKOUT
Power up: 34VDC, Power down: 32.5VDC
EFFICIENCY (Typ.)
86%
DC CURRENT FULL LOAD
2480mA
DC CURRENT NO LOAD
50mA
FILTER
Pi-network

PROTECTION

OUTPUT OVER CURRENT
110 ~ 140% rated output power Protection type : Over current limiting, recovers automatically after fault condition is removed
OUTPUT OVER VOLTAGE (Typ.)
115 ~ 140% rated output voltage Protection type : Output voltage clamp
OUTPUT SHORT CIRCUIT
Protection type : Can be continuous, recovers automatically after fault condition is removed
OVER TEMPERATURE
100℃±5℃of case temperature

FUNCTION

REMOTE CONTROL
Please refer to "Remote ON/OFF Control" for details

OPERATING

OUTPUT TRIMMING
±10%, Please refer to "External Output Trimming" for details

ENVIRONMENT

WORKING TEMPERATURE (Typ.)
-40 ~ +100℃ ; Thermal shutdown at 100℃±5℃of case temperature (please refer to "Thermal Curve")
WORKING HUMIDITY
0% ~ 95% RH max.
STORAGE TEMP., HUMIDITY
-55 ~ +105℃, 0 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0~60℃)

SAFETY & EMC

SAFETY STANDARDS
UL60950-1, EAC TP TC 020/2011(EAC TP TC 004 for 48Vin type only) approved
ISOLATION VOLTAGE
I/P-O/P:1500VDC, I/P-Case:1500VDC, O/P-Case:1500VDC
ISOLATION RESISTANCE
I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION
Compliance to BS EN/EN55032 (CISPR32) Class A with external components (please refer to "EMC Suggestion Circuit"), EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8; BS EN/EN55024, light industry level, criteria A, EAC TP TC 020

OTHERS

CASE MATERIAL
Aluminum
MTBF
900K hrs typ. MIL-HDBK-217F (25℃)
DIMENSION
57.9*61*12.7mm (2.28"*2.40"*0.5") (L*W*H)
PACKING
95g ; 12pcs/EPE, 60pcs/5 per carton
Test conditions and notes4
  1. 1. All parameters NOT specially mentioned are measured at 24,48VDC input, rated load and 25℃ of ambient temperature.
  2. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 1uf ceramic & 10uf tantalum capacitor across output.
  3. 3. The power supply need to connect "+Vout" to "+R.S" and "-Vout" to "-R.S".
  4. 4. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to "EMI testing of component power supplies."

Technical drawings

MHB100-48S05 MHB100 series
MHB100 series
MHB100-48S05 Remote ON/OFF Control
Remote ON/OFF Control
MHB100-48S05 +Vin
+Vin
MHB100-48S05 Output
Output
MHB100-48S05 Thermal Curve
Thermal Curve
MHB100-48S05 Case Heat Sink (Optional)
Case Heat Sink (Optional)
MHB100-48S05 Heatsink Assembly
Heatsink Assembly
MHB100-48S05 Packing
Packing

Downloads

FAQ

Can I use the MHB100-48S05 to power 5V industrial logic from a 36-75VDC source?

Yes, this model is designed for 36-75VDC input and provides constant 5V output. Its 20A output current and 100W power rating make it appropriate for high-current 5V logic, controllers, and embedded electronics within those limits.

Is this converter suitable for 5V embedded processors or industrial communication hardware?

It can be a fit for 5V embedded and communications hardware when the total load stays at or below 20A and 100W. The constant-voltage 5V output is intended for electronics that require a fixed 5V rail rather than a higher 12V or 24V bus.

Can the MHB100-48S05 support multiple 5V automation boards in one system?

It is suited to grouped 5V loads as long as the combined demand does not exceed 20A or 100W. That makes it useful for dense low-voltage control assemblies powered from a 36-75VDC input range.

Is the MHB100-48S05 appropriate for outdoor cabinets or temperature-extreme installations?

The operating range is -40°C to +100°C case temperature, with thermal shutdown at 100°C±5°C, so derating or cooling per the thermal curve is needed. However, no IP rating is listed in the provided specs, so the information here does not verify exposed outdoor or wet-location use.

How does the MHB100-48S05 compare with the other models in the series?

All listed MHB100 siblings are rated at 100W. The available outputs are 5V 20A, 12V 8.3A, and 24V 4.17A, offered across both the 24S input family and the 48S input family, including this 48S05 model.

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Mean Well MHB100-48S05 DC-DC Converter - 100W - 36~75V in 5V out 20A
Mean Well

Mean Well MHB100-48S05 DC-DC Converter - 100W - 36~75V in 5V out 20A

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MHB100-48S05 is the 5V output model of this series: rated power 100W, typical efficiency 86%.

Features

  • Half-brick size (2.28"X2.4"X0.5") with industry standard pin out
  • 2:1 wide input range
  • Protections: Short circuit / Over current / Over voltage / Over temperature
  • High efficiency up to 89%
  • 1500VDC I/O isolation
  • Built-in remote ON/OFF control
  • Built-in remote sense function
  • Trimming output ±10%
  • Five-sided shield metal case
  • Optional heat sinks for extended operating temperature
  • Output 3.3V/15V available
  • Approvals: UL / CUL / EAC / CE / UKCA
  • 3 years warranty
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