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Mean Well HRP-75-3.3 Power Supply 49.5W 3.3V 15A

built-in active PFChigh efficiency up to 90%no load power consumption <0.5W~0.75W

SKU HRP-75-3.3

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Select model — 7 in this family

HRP-75-3.3

HRP-75-3.3 75W 3.3V Backorder

HRP-100-3.3 100W 3.3V Backorder

HRP-150-3.3 150W 3.3V Backorder

HRP-200-3.3 200W 3.3V Backorder

HRP-300-3.3 300W 3.3V Backorder

HRP-450-3.3 450W 3.3V Backorder

HRP-600-3.3 600W 3.3V Backorder

Product variants

Available to order

Overview

HRP-75-3.3 is the 3.3V output model of this series: rated current 15A, rated power 49.5W, typical efficiency 77%.

Features

Universal AC input / Full range
Built-in active PFC function
Withstand 300VAC surge input for 5 seconds
Protections: Short circuit / Overload / Over voltage
Protections: Over temperature (optional)
Cooling by free air convection
1U low profile 38mm
Built-in remote ON-OFF control
No load power consumption<0.5W
All using 105℃ long life electrolytic capacitors
5 years warranty

Specifications

HRP-75-3.3Specifications from the official datasheet (2026-04-03 edition)

OUTPUT

DC VOLTAGE: 3.3V
RATED CURRENT: 15A
CURRENT RANGE: 0 ~ 15A
RATED POWER: 49.5W
RIPPLE & NOISE (max.)^Note.2: 80mVp-p
VOLTAGE ADJ. RANGE: 3.1 ~ 3.8V
VOLTAGE TOLERANCE^Note.3: ±2.5%
LINE REGULATION: ±1.0%
LOAD REGULATION: ±2.0%
SETUP, RISE TIME: 1800ms, 25ms/230VAC 1800ms, 25ms/115VAC at full load
HOLD UP TIME (Typ.): 50ms/230VAC 20ms/115VAC at full load

INPUT

VOLTAGE RANGE^Note.5: 85 ~ 264VAC 120 ~ 370VDC
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF>0.9/230VAC PF>0.95/115VAC at full load
EFFICIENCY (Typ.): 77%
AC CURRENT (Typ.): 0.9A/115VAC 0.5A/230VAC
INRUSH CURRENT (Typ.): 35A/115VAC 65A/230VAC
LEAKAGE CURRENT: <1mA / 240VAC

PROTECTION

OVERLOAD: 105 ~ 135% rated output power Protection type : Constant current limiting, switch to hiccup mode for Vo<50% of rated voltage, recovers automatically after fault condition is removed
OVER VOLTAGE: 3.96 ~ 4.62V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE (OPTIONAL): Shut down o/p voltage, recovers automatically after temperature goes down

FUNCTION

REMOTE CONTROL: RC+ / RC-: 0 ~ 0.8V = power on ; 4 ~ 10V = power off

ENVIRONMENT

WORKING TEMP.: -40 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 50℃)
VIBRATION: 10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC (Note 4)

SAFETY STANDARDS: UL62368-1,TUV BS EN/EN62368-1, AS/NZS62368.1, EAC TP TC 004 approved
WITHSTAND VOLTAGE: I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
ISOLATION RESISTANCE: I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION: Compliance to BS EN/EN55032 (CISPR32) Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11,BS EN/EN55035 , BS EN/ EN61000-6-2 ,heavy industry level, EAC TP TC 020

OTHERS

MTBF: 2385.6K hrs min. Telcordia SR-332 (Bellcore) ; 352.7K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 129*98*38mm (L*W*H)
PACKING: 0.47Kg; 30pcs/ 15Kg/ 0.97CUFT

Test conditions and notes7

1. All parameters NOT specially mentioned are measured at 230VAC 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 0.1μF & 47μF parallel capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
4. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 360mm*360mm metal plate with 1mm of thickness. 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.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
5. Derating may be needed under low input voltages. Please check the derating curve for more details.
6. Length of set up time is measured at cold first start. Turning ON/OFF the power supply may lead to increase of the set up time.
7. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).

Technical drawings

HRP-75-3.3 Mechanical Specification — Mechanical Specification

HRP-75-3.3 Block Diagram — Block Diagram

HRP-75-3.3 Derating Curve — Derating Curve

Downloads

Certificates3

UL Certificate (HRP-75)(EN) PDF Download

TUV Certificate (HRP-75)(EN) PDF Download

EMC Certificate (HRP-75)(EN) PDF Download

Test reports1

Test Report (HRP-75-3.3)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the HRP-75-3.3 for 3.3V embedded boards or logic-level electronics?

Yes, this supply provides constant voltage 3.3V output up to 15A and 49.5W, which fits 3.3V embedded electronics that stay within that power budget. It is better aligned with logic and board-level loads than with higher-voltage industrial field devices.

Is the HRP-75-3.3 suitable for FPGA, processor, or communications boards that run on 3.3V?

It can be suitable for boards that specifically require a regulated 3.3V source and draw no more than 15A or 49.5W. The wide 85-264VAC input also makes it usable where the AC source may vary by site.

Would the HRP-75-3.3 work for industrial control logic or interface circuits?

It can support control logic and interface circuits that use a 3.3V rail and remain within the 15A output current limit. With dimensions of 129.0 × 98.0 × 38.0 mm, it can also fit smaller equipment housings.

Can this power supply be used for 3.3V test fixtures or embedded development equipment?

Yes, it can fit 3.3V test or development equipment when the total draw stays within 49.5W and 15A. The output can also be trimmed between 3.1V and 3.8V, and typical efficiency is 77%.

How does the HRP-75-3.3 compare with other 3.3V models in the HRP line?

Within the HRP-75 series, the outputs are 3.3V 49.5W 15A, 5V 75W 15A, 7.5V 75W 10A, 12V 75.6W 6.3A, 15V 75W 5A, 24V 76.8W 3.2A, 36V 75.6W 2.1A, and 48V 76.8W 1.6A. HRP-75-3.3 is the only 3.3V model in the HRP-75 group and the lowest-wattage one, at 49.5W.

Is the HRP-75-3.3 suitable for outdoor use or only indoor enclosures?

The temperature rating is -40°C to +70°C, with output derating at the upper end per the derating curve (-40°C start-up is possible with 230VAC input), so the operating temperature spec is broad. However, no IP rating is provided in the supplied specs, so outdoor exposure suitability cannot be confirmed from the listed data.

Payment & Security

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Mean Well HRP-75-3.3 Power Supply 49.5W 3.3V 15A

Select model — 7 in this family

Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

FUNCTION

ENVIRONMENT

SAFETY & EMC (Note 4)

OTHERS

Technical drawings

Downloads

Certificates3

Test reports1

Catalogues1

FAQ

Payment & Security

Other HRP-75 Models

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Mean Well HRP-75-3.3 Power Supply 49.5W 3.3V 15A

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