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Mean Well

Mean Well MHB75-12S24 DC-DC Converter - 75W - 9~18V in 24V out 3.13A

SKU MHB75-12S24
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Overview

MHB75-12S24 is the 24V output model of this series: rated power 75W, typical efficiency 87%.

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

MHB75-12S24Specifications from the official datasheet (2024-04-30 edition)

OUTPUT

DC VOLTAGE
24V
CURRENT RANGE
0 ~ 3.13A
RATED POWER
75W
RIPPLE & NOISE (max.)Note.2
240mVp-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.)
2000uF

INPUT

RATED DC INPUT
12VDC
VOLTAGE RANGE
9 ~ 18VDC
SURGE VOLTAGE (100ms max.)
25VDC
UNDER VOLTAGE LOCKOUT
Power up: 8.8VDC, Power down: 8VDC
EFFICIENCY (Typ.)
87%
DC CURRENT FULL LOAD
7200mA
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

MHB75-12S24 M H B 7 5 series
M H B 7 5 series
MHB75-12S24 Remote ON/OFF Control
Remote ON/OFF Control
MHB75-12S24 +Vin
+Vin
MHB75-12S24 Output
Output
MHB75-12S24 Thermal Curve
Thermal Curve
MHB75-12S24 Case Heat Sink (Optional)
Case Heat Sink (Optional)
MHB75-12S24 Heatsink Assembly
Heatsink Assembly
MHB75-12S24 Packing
Packing

Downloads

FAQ

Can I use the MHB75-12S24 for 24V industrial control circuits?

It is suited to 24V constant-voltage equipment that fits within its 75W output and 3.13A output current rating. That makes it a reasonable match for compact industrial control or automation devices that require 24V DC from a 9-18VDC input range.

Is this converter a fit for embedded 24V systems in low-voltage equipment?

This model provides a regulated 24V constant-voltage output at up to 3.13A, so it fits embedded systems designed around a 24V DC rail. Its compact 61.0 × 57.9 × 12.7 mm size also helps where board-space or enclosure space is limited.

Can the MHB75-12S24 be used in automation equipment that needs a wide operating temperature range?

Yes, the specified operating range is -40°C to +100°C case temperature, with thermal shutdown at 100°C ±5°C. For automation hardware exposed to very low or very high ambient temperatures, apply derating or cooling (airflow or the optional heat sink) per the thermal curve, in addition to matching the 24V, 75W output.

Is the MHB75-12S24 suitable for outdoor or washdown environments?

The specs list an operating range of -40°C to +100°C case temperature, with thermal shutdown at 100°C ±5°C, but they do not list an IP rating. Because no ingress-protection rating is provided here, outdoor or washdown suitability cannot be confirmed from these specs alone.

How does the MHB75-12S24 compare with the other MHB75 series models?

All listed MHB75 siblings are 75W converters, but they differ by input range and output voltage/current. The 12-input group includes MHB75-12S05 at 5V 15A, MHB75-12S12 at 12V 6.25A, and MHB75-12S24 at 24V 3.13A; the 24-input group includes MHB75-24S05, MHB75-24S12, and MHB75-24S24 with the same three outputs; the 48-input group includes MHB75-48S05, MHB75-48S12, and MHB75-48S24 with the same three outputs.

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Mean Well MHB75-12S24 DC-DC Converter - 75W - 9~18V in 24V out 3.13A
Mean Well

Mean Well MHB75-12S24 DC-DC Converter - 75W - 9~18V in 24V out 3.13A

Log in to see price

MHB75-12S24 is the 24V output model of this series: rated power 75W, typical efficiency 87%.

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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