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Mean Well MHB75-48S24 DC-DC Converter - 75W - 36~72V in 24V out 3.13A
Overview
MHB75-48S24 is the 24V output model of this series: rated power 75W, typical efficiency 89%.
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 2.5V/3.3V/15V available
- Approvals: UL / CUL / CE
- 3 years warranty
Specifications
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
- 48VDC
- VOLTAGE RANGE
- 36 ~ 75VDC
- SURGE VOLTAGE (100ms max.)
- 100VDC
- UNDER VOLTAGE LOCKOUT
- Power up: 34VDC, Power down: 32.5VDC
- EFFICIENCY (Typ.)
- 89%
- DC CURRENT FULL LOAD
- 1800mA
- 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 OPERATING
- REMOTE CONTROL
- Please refer to "Remote ON/OFF Control" for details
- 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 (Note 4)
- SAFETY STANDARDS
- UL60950-1, EAC TP TC 004 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 EN55032 (CISPR32) Class A with external components (please refer to "EMC Suggestion Circuit"), EAC TP TC 020
- EMC IMMUNITY
- Compliance to EN61000-4-2,3,4,5,6,8; 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)
- WEIGHT
- 92g
Test conditions and notes4
- 1. All parameters NOT specially mentioned are measured at 12,24,48VDC input, rated load and 25℃ of ambient temperature.
- 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. The power supply need to connect "+Vout" to "+R.S" and "-Vout" to "-R.S".
- 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
Downloads
FAQ
Can I use the MHB75-48S24 for 24V automation controllers in a 48V power system?
Yes, this model provides constant 24V output from a 36-72VAC input range. It supports loads up to 3.13A and 75W, which suits many 24V control and embedded electronics that remain within those limits.
Is this a good fit for 24V industrial sensors, I/O modules, or interface electronics?
It can be used where those devices need a stable 24V supply and the total current draw stays at or below 3.13A. The constant-voltage output is appropriate for 24V electronics rather than variable-output applications.
Can the MHB75-48S24 power 24V telecom or monitoring equipment from a higher-voltage source?
It is suitable when the source is within 36-72VAC and the load requires 24V at up to 3.13A. That makes it relevant for compact 24V communication, monitoring, or embedded equipment that fits inside a 75W power budget.
Would this model work in space-constrained embedded equipment?
It is relatively compact at 61.0 x 57.9 x 12.7 mm and weighs 0.092 kg, which supports use in dense assemblies. The key electrical fit is still the same: 36-72VAC input and constant 24V output up to 3.13A.
Can the MHB75-48S24 be used in demanding indoor temperature conditions?
The specified operating temperature is -55°C to +105°C, so the thermal range is very broad. No IP rating is listed in the provided specs, so it should not be treated as an outdoor-exposure product unless the end equipment enclosure provides that protection.
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Other MHB75 Models
8 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well MHB75-48S12 DC-DC Converter - 75W - 36~72V in 12V out 6.25A | 75W | 12V | 6.25A | IP20 | $70.43 | View |
| Mean Well MHB75-48S05 DC-DC Converter - 75W - 36~72V in 5V out 15A | 75W | 5V | 15A | IP20 | $70.43 | View |
| Mean Well MHB75-24S24 DC-DC Converter - 75W - 18~36V in 24V out 3.13A | 75W | 24V | 3.13A | IP20 | $70.43 | View |
| Mean Well MHB75-24S12 DC-DC Converter - 75W - 18~36V in 12V out 6.25A | 75W | 12V | 6.25A | IP20 | $70.43 | View |
| Mean Well MHB75-24S05 DC-DC Converter - 75W - 18~36V in 5V out 15A | 75W | 5V | 15A | IP20 | $70.43 | View |
| Mean Well MHB75-12S24 DC-DC Converter - 75W - 9~18V in 24V out 3.13A | 75W | 24V | 3.13A | IP20 | $66.92 | View |
| Mean Well MHB75-12S12 DC-DC Converter - 75W - 9~18V in 12V out 6.25A | 75W | 12V | 6.25A | IP20 | $69.27 | View |
| Mean Well MHB75-12S05 DC-DC Converter - 75W - 9~18V in 5V out 15A | 75W | 5V | 15A | IP20 | $70.43 | View |
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