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Mean Well

Mean Well MHB75-48S05 DC-DC Converter - 75W - 36~72V in 5V out 15A

SKU MHB75-48S05
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Overview

MHB75-48S05 is the 5V output model of this series: rated power 75W, typical efficiency 84%.

Features

  • Half-brick size (2.28"×2.4"×0.5") 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

MHB75-48S05Specifications from the official datasheet (2024-04-30 edition)

OUTPUT

DC VOLTAGE
5V
CURRENT RANGE
0 ~ 15A
RATED POWER
75W
RIPPLE & NOISE (max.)Note.2
75mVp-p
VOLTAGE ACCURACYNote.3
±1.0%
LINE REGULATION
±0.2%
LOAD REGULATION
±0.2%
SWITCHING FREQUENCY (Typ.)
400KHz for 12/24Vin, 300KHz for 48Vin
EXTERNAL TRIM ADJ. RANGE (Typ.)
±10%
EXTERNAL CAPACITIVE LOAD (max.)
10000uF

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.)
84%
DC CURRENT FULL LOAD
1900mA
DC CURRENT NO LOAD
50mA
FILTER
Pi-network

PROTECTION

OUTPUT OVER CURRENT
110 ~ 150% 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 by TVS diode
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
1000K 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 12,24,48VDC 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

MHB75-48S05 M H B 7 5 series
M H B 7 5 series
MHB75-48S05 Remote ON/OFF Control
Remote ON/OFF Control
MHB75-48S05 +Vin
+Vin
MHB75-48S05 Output
Output
MHB75-48S05 Thermal Curve
Thermal Curve
MHB75-48S05 Case Heat Sink (Optional)
Case Heat Sink (Optional)
MHB75-48S05 Heatsink Assembly
Heatsink Assembly
MHB75-48S05 Packing
Packing

Downloads

FAQ

Can I use the MHB75-48S05 for 5V embedded or industrial electronics on higher-voltage systems?

Yes, this model is designed for a 36-75VDC input range and provides a 5V constant-voltage output. With up to 15A and 75W available, it suits 5V embedded or industrial electronics that need higher current from a higher-voltage source range.

Is the MHB75-48S05 suitable for 5V control or communications hardware in industrial equipment?

It is a fit for 5V constant-voltage hardware that stays within the 15A and 75W limits. In industrial equipment where the available input falls in the 36-75VDC range, this model matches 5V control or communications loads better than the 12V or 24V output versions.

Can this converter be used where space is limited but current demand is high at 5V?

The unit is compact at 61.0 × 57.9 × 12.7 mm and weighs 95 g, while still providing 5V at up to 15A. That combination is useful for dense assemblies that need more current on a 5V rail from a half-brick-size converter.

Is the MHB75-48S05 appropriate for harsh temperature environments or outdoor use?

Its operating range is -40°C to +100°C case temperature, with thermal shutdown at 100°C ±5°C, and derating or cooling is needed per the thermal curve. The specs do not include an IP rating, so suitability for outdoor exposure, water, or dust cannot be determined from this information alone.

How does the MHB75-48S05 compare with the other high-input MHB75 models?

Within the 36-75VDC input group, the available outputs are 5V at 15A for MHB75-48S05, 12V at 6.25A for MHB75-48S12, and 24V at 3.13A for MHB75-48S24. All are rated at 75W and share the same 61.0 × 57.9 × 12.7 mm dimensions, 95 g weight, and -40°C to +100°C operating case temperature range.

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Mean Well MHB75-48S05 DC-DC Converter - 75W - 36~72V in 5V out 15A
Mean Well

Mean Well MHB75-48S05 DC-DC Converter - 75W - 36~72V in 5V out 15A

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MHB75-48S05 is the 5V output model of this series: rated power 75W, typical efficiency 84%.

Features

  • Half-brick size (2.28"×2.4"×0.5") 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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