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Mean Well

Mean Well EPS-35-3.3 Power Supply 20W 3.3V 6A

3" x 2"economical non-PFCsmall sizehigh efficiency
SKU EPS-35-3.3
$15.77 USD
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In stock
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Overview

EPS-35-3.3 is the 3.3V output model of this series: rated current 6A, rated power 19.8W, typical efficiency 80%.

Features

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

Specifications

EPS-35-3.3Specifications from the official datasheet (2026-03-31 edition)

OUTPUT

DC VOLTAGE
3.3V
RATED CURRENT
6A
CURRENT RANGE
0 ~ 6.6A
RATED POWER
19.8W
PEAK LOAD(10sec.)Note.6
21.78W
RIPPLE & NOISE (max.)Note.2
60mVp-p
VOLTAGE ADJ. RANGE
3.1 ~ 3.6V
VOLTAGE TOLERANCENote.3
±2.5%
LINE REGULATION
±0.5%
LOAD REGULATION
±1.5%
SETUP, RISE TIME
1000ms, 30ms/230VAC 1000ms, 30ms/115VAC at full load
HOLD UP TIME (Typ.)
50ms/230VAC 16ms/115VAC at full load

INPUT

VOLTAGE RANGENote.5
85 ~ 264VAC 120 ~ 370VDC
FREQUENCY RANGE
47 ~ 63Hz
EFFICIENCY (Typ.)
80%
AC CURRENT (Typ.)
0.75A/115VAC 0.5A/230VAC
INRUSH CURRENT (Typ.)
COLD START 40A/230VAC
LEAKAGE CURRENT
<1mA/240VAC

PROTECTION

OVER LOAD
115 ~ 170% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
3.7 ~ 4.6V Protection type : Shut down o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.
-30 ~ +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℃ )
OPERATING ALTITUDENote.8
2000 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
3673.9K hrs min. Telcordia SR-332 (Bellcore) ; 649.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
76.2*50.8*24mm (L*W*H)
PACKING
0.085Kg; 120pcs/11.2Kg/0.94CUFT
Test conditions and notes8
  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. 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. 5. Derating may be needed under low input voltage. Please check the static characteristics for more details.
  6. 6. 33% Duty cycle maximum within every 30 seconds. Average output power should not exceed the rated power.
  7. 7. EPS-35-24/27/36/48 without Hs1.
  8. 8. 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-35-3.3 Mechanical Specification
Mechanical Specification
EPS-35-3.3 Block Diagram
Block Diagram
EPS-35-3.3 Output Derating
Output Derating

Downloads

FAQ

Can I use the EPS-35-3.3 for 3.3V embedded controllers or logic boards?

Yes, it is a constant-voltage 3.3V supply rated for 19.8W and up to 6A, which suits embedded controllers, logic circuits, and processor-based boards that require a regulated 3.3V rail. The load still needs to stay within the 6A output current limit.

Is the EPS-35-3.3 a good fit for industrial I/O electronics that run on 3.3V DC?

It can be used for industrial or automation electronics that specifically require 3.3V DC and draw no more than 19.8W total. With an 85-264VAC input range, it works where the equipment needs a compact AC-to-3.3V supply inside the system enclosure.

Can this model power a small 3.3V communications or control subsystem?

Yes, if the subsystem is designed for 3.3V constant voltage and the total demand stays within 6A. That makes it appropriate for low-voltage digital subsystems, control logic, or embedded communication electronics that need a regulated 3.3V rail.

Can I use the EPS-35-3.3 in outdoor equipment or unsealed areas?

The operating temperature range is -30°C to +70°C, but no IP rating is listed in the provided specs. Based on that, the temperature range is defined, while outdoor or water-exposed suitability is not established by this data.

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Mean Well EPS-35-3.3 Power Supply 20W 3.3V 6A
Mean Well

Mean Well EPS-35-3.3 Power Supply 20W 3.3V 6A

$15.77 USD

EPS-35-3.3 is the 3.3V output model of this series: rated current 6A, rated power 19.8W, typical efficiency 80%.

Features

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