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Mean Well

Mean Well EPS-65-3.3 Power Supply 36W 3.3V 11A

5.0 (1 review)
4" x 2"high efficiencyoptional L-bracket and coverno load power consumption<0.3W
SKU EPS-65-3.3
$16.19 USD
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Overview

EPS-65-3.3 is the 3.3V output model of this series: rated current 11A, rated power 36.3W, typical efficiency 80%. Type Blank: Blank.

Features

  • Universal AC input / Full range
  • Optional L-Bracket and cover
  • High efficiency up to 90%
  • Protections: Short circuit / Overload / Over voltage
  • Cooling by free air convection
  • 4"×2" compact size
  • LED indicator for power on
  • No load power consumption<0.3W
  • Operating altitude up to 4000 meters
  • 3 years warranty

Specifications

EPS-65-3.3Specifications from the official datasheet (2026-03-31 edition)

OUTPUT

DC VOLTAGE
3.3V
RATED CURRENT
11A
CURRENT RANGE
0 ~ 12A
RATED POWER
36.3W
PEAK LOAD(10sec.)Note.6
39.6W
RIPPLE & NOISE (max.)Note.2
80mVp-p
VOLTAGE ADJ. RANGE
3.1 ~ 3.6V
VOLTAGE TOLERANCENote.3
±3.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±2.0%
SETUP, RISE TIME
1000ms, 50ms/230VAC 2000ms, 50ms/115VAC at full load
HOLD UP TIME (Typ.)
50ms/230VAC 12ms/115VAC at full load

INPUT

VOLTAGE RANGENote.5
90 ~ 264VAC 127 ~ 370VDC [DC input operation possible by connecting AC/N(+), AC/L(-)]
FREQUENCY RANGE
47 ~ 63Hz
EFFICIENCY (Typ.)
80%
AC CURRENT (Typ.)
1.8A/115VAC 1 A/230VAC
INRUSH CURRENT (Typ.)
COLD START 60A/230VAC
LEAKAGE CURRENT
<2mA/240VAC

PROTECTION

OVER LOAD
115 ~ 180% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
3.7 ~ 4.45V Protection type : Shut down o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.
-30 ~ +70℃ (Refer to output load derating curve)
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃(0 ~ 50℃)
OPERATING ALTITUDENote.7
4000 meters
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC (Note 4)

SAFETY STANDARDS
UL62368-1, TUV BS EN/EN62368-1, CCC GB4943.1, 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, GB9254.1 Class B,GB17625 Class A,EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, heavy industry level, EAC TP TC 020

OTHERS

MTBF
3077.6K hrs min. Telcordia SR-332 (Bellcore) ; 563.0K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
PCB:101.6*50.8*29mm (L*W*H) ; with optional CASE:103.4*62*37mm (L*W*H)
PACKING
PCB: 0.15Kg; 96pcs/ 15.4 Kg/1.39CUFT ; with optional CASE: 0.3Kg; 45pcs/ 14.5Kg/0.63CUFT

MODEL ENCODING

Blank (this model)
Blank
C
Enclosed type
Test conditions and notes7
  1. 1. All parameters NOT specially mentioned are measured at 230VAC 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 0.1μF & 47μF parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. Derating may be needed under low input voltage. Please check the static characteristics for more details.
  5. 5. 33% Duty cycle maximum within every 30 seconds. Average output power should not exceed the rated power.
  6. 6. 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 )
  7. 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

EPS-65-3.3 Mechanical Specification
Mechanical Specification
EPS-65-3.3 Block Diagram
Block Diagram
EPS-65-3.3 Output Derating
Output Derating

Downloads

FAQ

Can I use the EPS-65-3.3 for a 3.3V industrial controller or PLC-related board?

Yes, if the equipment requires a 3.3V constant-voltage supply and stays within 11A and 36.3W. That makes it a fit for 3.3V control electronics, logic boards, and embedded industrial hardware that need higher current at low voltage.

Is the EPS-65-3.3 suitable for powering 3.3V embedded systems or single-board electronics in OEM equipment?

It can be suitable for 3.3V embedded electronics when the total load does not exceed 11A or 36.3W. The unit is a constant-voltage model, so it is intended for loads designed to run from a fixed 3.3V output.

Can this 3.3V power supply be used for automation I/O or low-voltage digital assemblies?

Yes, this model is aimed at low-voltage applications that need a stable 3.3V output with up to 11A available. It is more appropriate for digital assemblies and automation electronics than for higher-voltage devices.

Is the EPS-65-3.3 good for indoor control cabinets or enclosed industrial equipment?

The operating temperature range is -30°C to +70°C (per the output load derating curve), which supports demanding indoor industrial environments. No IP rating is listed in the provided specs, so it is better suited to protected indoor enclosures rather than exposed outdoor locations.

How does the EPS-65-3.3 compare with other 3.3V models in the EPS series?

Within the EPS-65 series on this datasheet, the 3.3V options are EPS-65-3.3 and EPS-65-3.3-C, both rated 3.3V, 11A and 36.3W. EPS-65-3.3 is the 101.6 × 50.8 × 29.0 mm PCB version at 0.15 kg, while EPS-65-3.3-C is 103.4 × 62.0 × 37.0 mm at 0.3 kg; other EPS series are not covered by this sheet.

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Customer reviews

5.0 Reviews verified for authenticity
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1 ★ (0)

Reviewed by 1 customer across the EPS series

  1. Replacement PS

    By Gary Z.|2026-07-09✓ Verified Buyer
    Model: EPS-15-15 ×1, EPS-15-5 ×1, EPS-15-7.5 ×1Quantity: 1

    Power Supplies were used to replace the one that was removed on a Phillips PM6680 counter, a +5V, +15V and -7V. They seem to work well so far. I have to put in a boost converter on the +15V for space and not use the +15V EPS.

Mean Well

Mean Well EPS-65-3.3 Power Supply 36W 3.3V 11A

$16.19 USD

EPS-65-3.3 is the 3.3V output model of this series: rated current 11A, rated power 36.3W, typical efficiency 80%. Type Blank: Blank.

Features

  • Universal AC input / Full range
  • Optional L-Bracket and cover
  • High efficiency up to 90%
  • Protections: Short circuit / Overload / Over voltage
  • Cooling by free air convection
  • 4"×2" compact size
  • LED indicator for power on
  • No load power consumption<0.3W
  • Operating altitude up to 4000 meters
  • 3 years warranty
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