Mean Well IRM-02-12 Switching Power Supply 2W 12V 167mA - Encapsulated

Name: Mean Well IRM-02-12 Switching Power Supply 2W 12V 167mA - Encapsulated
Brand: Mean Well
SKU: IRM-02-12
Price: 7.47 USD
Availability: InStock

Overview

IRM-02-12 is the 12V output model of this series: rated current 167mA, rated power 2W, typical efficiency 74%. 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-02-12Specifications from the official datasheet (2025-11-21 edition)

OUTPUT

DC VOLTAGE: 12V
RATED CURRENT: 167mA
CURRENT RANGE: 0 ~ 167mA
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.): 74%
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: 12.6 ~ 16.2V 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-02-12 Mechanical Specification — Mechanical Specification

IRM-02-12 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-02-12 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-02-12)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the IRM-02-12 for a small 12V PLC interface or relay logic circuit?

It can fit low-power 12V control or interface sections that need constant-voltage output and stay within 2W and 167mA. That makes it more suitable for light control electronics than for larger 12V loads.

Is the IRM-02-12 a good fit for embedded 12V industrial monitoring hardware?

Yes, if the embedded hardware needs 12V and its total consumption does not exceed 167mA. The miniature encapsulated body and 33.7 × 22.2 × 15.0 mm size are suited to compact internal PCB assemblies.

Can this power supply run a small 12V sensor or instrumentation module from global AC input?

It is designed for AC input from 85-305VAC, so it works across a broad mains range. On the output side, the load still has to stay within 12V, 167mA, and 2W.

Is the IRM-02-12 meant for outdoor applications?

Its operating temperature range is -30°C to +85°C, subject to the derating curve, which covers a broad indoor equipment range. The specs provided do not include an IP rating, so it should be used inside a protected enclosure rather than in exposed outdoor conditions.

How does the IRM-02-12 compare with other 12V IRM power levels?

This datasheet covers only the 2W IRM-02 series, so it does not specify other 12V IRM power levels. IRM-02-12 is the 2W, 12V, 167mA PCB mounting style option (33.7 × 22.2 × 15 mm); the IRM-02-12S is the SMD style version of the same rating (33.7 × 22.2 × 16 mm).

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