Mean Well IRM-02-3.3 Switching Power Supply | 2W 3.3V 600mA - Encapsulated

Name: Mean Well IRM-02-3.3 Switching Power Supply 2W 3.3V 600mA - Encapsulated
Brand: Mean Well
SKU: IRM-02-3.3
Price: 7.47 USD
Availability: InStock

Overview

IRM-02-3.3 is the 3.3V output model of this series: rated current 600mA, rated power 2W, typical efficiency 66%. Type Blank: PCB mounting style.

IRM-02 is a 2W miniature (33.7*22.2*15mm) AC-DC module-type power supply, ready to be soldered onto the PCB boards of various kinds of electronic instruments or industrial automation equipments. This product allows a universal input voltage range of 85~305Vac. The phenolic case and potted with silicone enhance the heat dissipation and meet the anti-vibration demand up to 5G; moreover, it provides the fundamental resistance to dust and moisture. With the high efficiency up to 77% and the extremely low no-load power consumption below 0.075W, IRM-02 series fulfills the worldwide regulation for the low power consumption requirement for electronics. The entire series is a Class Ⅱ design (no FG pin), incorporating the built-in EMI filtering components, enabling the compliance with BS EN/ EN55032 Class B; the supreme EMC features keep the end electronic units from electromagnetic interference. In addition to module-type model, IRM-02 series also offers the SMD style model.

Features

Universal AC input / Full range
No load power consumption<0.075W
Compact size
Comply with BS EN/EN55032 Class B without any additional components
Wide operating temp. range -30~85℃
Protections: Short circuit / Overload / Over voltage
Cooling by free air convection
Isolation ClassⅡ
High reliability, low cost
3 years warranty

Specifications

IRM-02-3.3Specifications from the official datasheet (2025-11-21 edition)

OUTPUT

DC VOLTAGE: 3.3V
RATED CURRENT: 600mA
CURRENT RANGE: 0 ~ 600mA
RATED POWER: 2W
RIPPLE & NOISE (max.)^Note.2: 150mVp-p
VOLTAGE TOLERANCE^Note.3: ±2.5%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME: 600ms, 30ms/230Vac 600ms, 30ms/115Vac at full load
HOLD UP TIME (Typ.): 40ms/230Vac 12ms/115Vac at full load

INPUT

VOLTAGE RANGE: 85 ~ 305Vac 120 ~ 430Vdc
FREQUENCY RANGE: 47 ~ 63Hz
EFFICIENCY (Typ.): 66%
AC CURRENT (Typ.): 45mA/115Vac 30mA/230Vac 25mA/277Vac
INRUSH CURRENT (Typ.): 5A/115Vac 10A/230Vac
LEAKAGE CURRENT: < 0.25mA/277Vac

PROTECTION

OVERLOAD: ≥110% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 3.8 ~ 4.9V Protection type : Shut off o/p voltage, clamping by zener diode

ENVIRONMENT

WORKING TEMP.: -30 ~ +85℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +100℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 75℃)
VIBRATION: 10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes
SOLDERING TEMPERATURE: Wave soldering: 265℃,5s (max.); Manual soldering: 390℃,3s (max.); Reflow soldering(SMD style): 240℃,10s (max.)

SAFETY & EMC

SAFETY STANDARDS: IEC62368-1,IEC61558-1/-2-16,UL62368-1,TUV BS EN/EN62368-1, BS EN/EN61558-1/-2-16,EAC TP TC 004, BSMI CNS15598-1 approved
OVER VOLTAGE CATEGORY: IEC/EN 61558-1/-2-16(OVC Ⅱ, altitude up to 2000m); IEC/EN/UL 62368-1(OVC Ⅱ, altitude up to 2000m)
WITHSTAND VOLTAGE: I/P-O/P:4.2KVac
ISOLATION RESISTANCE: I/P-O/P: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, CNS15936 Class B
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, heavy industry level (surge L-N : 1KV), EAC TP TC 020

OTHERS

MTBF: 13571.4K hrs min. Telcordia SR-332 (Bellcore) ; 1960.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: PCB mounting style : 33.7*22.2*15mm (L*W*H) SMD style : 33.7*22.2*16mm (L*W*H)
PACKING: PCB mounting style : 0.024Kg; 640pcs/ 16.3 Kg/ 0.84CUFT SMD style : 0.024Kg; 640 pcs/ 16.3 Kg/ 0.84CUFT

Certifications & ratings

Marked features: LPS

MODEL ENCODING

Blank (this model): PCB mounting style
S: SMD style

Test conditions and notes4

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 0.1uf & 47uf parallel capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
4. 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

IRM-02-3.3 Block Diagram — Block Diagram

IRM-02-3.3 Mechanical Specification — Mechanical Specification

IRM-02-3.3 Recommended PCB Layout (for SMD — Recommended PCB Layout (for SMD

Typical applications

Industrial electrical equipment
Mechanical equipment
Factory automation equipment
Handheld electronic device

Downloads

Datasheet1

IRM-02-3.3 datasheetIRM-02-SPEC.PDF · 2025-11-21 edition PDF Download

Certificates4

EMC Certificate (IRM-02)(EN) PDF Download

UL Certificate (IRM-02)(EN) PDF Download

CB Certificate (IRM-02)(EN) PDF Download

TUV Certificate (IRM-02)(EN) PDF Download

Test reports1

Test Report (IRM-02-3.3)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the IRM-02-3.3 to power a 3.3V microcontroller or embedded logic board from AC mains?

Yes, this model is a 3.3V constant-voltage supply rated at 2W. It fits embedded control or logic boards that require 3.3V DC and stay within the unit's 2W output capability.

Is this a good fit for a small 3.3V IoT or monitoring module inside industrial equipment?

It can be a fit for low-power 3.3V monitoring, sensing, or IoT electronics used inside larger industrial equipment. The wide 85-305VAC input range and miniature encapsulated PCB-mount format support compact internal designs.

Can the IRM-02-3.3 power low-power 3.3V communication or interface electronics on a control PCB?

Yes, it is intended for small constant-voltage 3.3V DC loads on embedded or automation boards. The 2W rating makes it more suitable for low-power interface and control electronics than for high-demand 3.3V subsystems.

Would this work for a compact 3.3V sensor-processing board in a machine or instrument?

It is appropriate for compact 3.3V electronics in instruments or machines when the board's demand stays within 2W. The 33.7 × 22.2 × 15.0 mm package helps where internal board space is limited.

Is the IRM-02-3.3 meant for outdoor or unsealed environments?

No IP rating or outdoor-use rating is listed for this unit. The specified operating range is -30°C to +85°C, subject to the derating curve, but the encapsulated PCB-mount style indicates use inside protected enclosures rather than in direct outdoor exposure.

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Please log in to write a review.

{ "id":8656031908160, "variants" :[{ "context":"default", "variant_id": 46625301823808, "sku":"IRM-02-3.3", "inventory_qty" : 21, "customer" :true, "custom_html" :"\u003cdiv class=\"price\"\u003e\n \u003cdiv class=\"price__default\"\u003e\n \u003cstrong class=\"price__current\"\u003e$7.47\u003c\/strong\u003e\n \u003cs class=\"price__was\"\u003e\u003c\/s\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"unit-price relative\" hidden\u003e\u003cspan class=\"visually-hidden\"\u003eUnit price\u003c\/span\u003e\u003cspan class=\"unit-price__price\"\u003e\u003c\/span\u003e\u003cspan class=\"unit-price__separator\"\u003e \/ \u003c\/span\u003e\u003cspan class=\"unit-price__unit\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n \u003cdiv class=\"price__no-variant\" hidden\u003e\n \u003cstrong class=\"price__current\"\u003eUnavailable\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003c\/div\u003e", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }

Mean Well IRM-02-3.3 Switching Power Supply 2W 3.3V 600mA - Encapsulated

Select model — 10 in this family