Mean Well IRM-03-5 Switching Power Supply 3W 5V 600mA - Encapsulated

Name: Mean Well IRM-03-5 Switching Power Supply 3W 5V 600mA - Encapsulated
Brand: Mean Well
SKU: IRM-03-5
Price: 7.05 USD
Availability: InStock

Overview

IRM-03-5 is the 5V output model of this series: rated current 600mA, rated power 3W, typical efficiency 72%. Type Blank: PCB mounting style.

IRM-03 is a 3W miniature (37*24*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 80% and the extremely low no-load power consumption below 0.075W, IRM-03 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-03 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-03-5Specifications from the official datasheet (2025-08-08 edition)

OUTPUT

DC VOLTAGE: 5V
RATED CURRENT: 600mA
CURRENT RANGE: 0 ~ 600mA
RATED POWER: 3W
RIPPLE & NOISE (max.)^Note.2: 100mVp-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 8ms/115Vac at full load

INPUT

VOLTAGE RANGE: 85 ~ 305Vac 120~430Vdc
FREQUENCY RANGE: 47 ~ 63Hz
EFFICIENCY (Typ.): 72%
AC CURRENT (Typ.): 70mA/115Vac 40mA/230Vac 35mA/277Vac
INRUSH CURRENT (Typ.): 10A/115Vac 20A/230Vac
LEAKAGE CURRENT: < 0.25mA/277Vac

PROTECTION

OVERLOAD: 105%~260% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 5.2~ 6.8V 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 ~ 50℃)
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, BS EN/EN60335-1, BS EN/EN61558-1/-2-16, EAC TP TC 004, BSMI CNS15598-1 approved, design refer to IEC60601-1 (By request)
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: 10762.8K hrs min. Telcordia SR-332 (Bellcore) ; 2137.6K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: PCB mounting style : 37*24*15mm (L*W*H) SMD style : 37*24*16mm (L*W*H)
PACKING: PCB mounting style : 0.023Kg;560pcs/14.1Kg/0.77CUFT SMD style :0.023Kg;560pcs/14.1Kg/0.77CUFT

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-03-5 Derating Curve — Derating Curve

IRM-03-5 Mechanical Specification — Mechanical Specification

IRM-03-5 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-03-5 datasheetIRM-03-SPEC.PDF · 2025-08-08 edition PDF Download

Certificates4

EMC Certificate (IRM-03)(EN) PDF Download

UL Certificate (IRM-03)(EN) PDF Download

CB Certificate (IRM-03)(EN) PDF Download

TUV Certificate (IRM-03)(EN) PDF Download

Test reports1

Test Report (IRM-03-5)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

What is the Mean Well IRM-03-5 designed for?

The IRM-03-5 is a compact encapsulated AC-DC switching power supply designed to provide a regulated 5V DC output at up to 600mA. With a 3W power rating and small footprint, it is suited to space-constrained PCB-based equipment and embedded industrial or commercial electronics.

What are the main electrical ratings of the IRM-03-5?

This model is rated for 3W total output power and delivers 5V DC with a rated current of 600mA. It accepts a universal input range of 85 to 305VAC or 120 to 430VDC, which makes it suitable for designs intended for broad global input conditions.

What protection features are included in the Mean Well IRM-03-5?

The IRM-03-5 includes short circuit, overload, and over voltage protection. Its overload protection operates in hiccup mode with auto-recovery, and over voltage protection trips at 5.2 to 6.8V, shutting off the output via zener diode clamping.

Is the IRM-03-5 suitable for low standby power applications?

Yes. Mean Well specifies no-load power consumption of less than 0.075W for the IRM-03-5, which is useful for designs that need to minimize standby energy use. This can make it a practical option for always-on equipment with strict idle power targets.

What operating temperature range can the IRM-03-5 handle?

The specified working temperature range is -30°C to +85°C, subject to the output derating curve. That gives this model a broad operating window for equipment used in demanding indoor enclosures or variable ambient conditions.

What certifications and compliance standards are listed for this power supply?

The IRM-03-5 is listed with IEC62368-1, UL62368-1, TUV BS EN/EN62368, BS EN/EN60335-1 and IEC/BS EN/EN61558-1/-2-16 safety approvals, with design reference to IEC60601-1 on request. EMC standards listed include BS EN/EN55032 Class B, BS EN/EN61000-3-2,-3, BS EN/EN61000-4 series, and BS EN/EN55035.

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