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Mean Well IRM-02-12S Switching Power Supply 2W 12V 167mA - Encapsul...
Overview
IRM-02-12S is the 12V output model of this series: rated current 167mA, rated power 2W, typical efficiency 74%. Type S: SMD 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
OUTPUT
- DC VOLTAGE
- 12V
- RATED CURRENT
- 167mA
- CURRENT RANGE
- 0 ~ 167mA
- RATED POWER
- 2W
- RIPPLE & NOISE (max.)Note.2
- 150mVp-p
- VOLTAGE TOLERANCENote.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
- PCB mounting style
- S (this model)
- 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
Typical applications
- Industrial electrical equipment
- Mechanical equipment
- Factory automation equipment
- Handheld electronic device
Downloads
Datasheet1
Certificates4
Test reports1
Catalogues1
FAQ
Can I use the IRM-02-12S for a compact 12V embedded controller board?
Yes, if the controller needs a 12V constant-voltage supply and stays within 2W and 167mA. The SMD style and 33.7 × 22.2 × 16.0 mm dimensions make it suitable for space-constrained embedded assemblies.
Is the IRM-02-12S suitable for low-power industrial I/O or alarm electronics?
It can support small 12V industrial electronics where the load remains within 167mA. For anything needing materially more than 2W, a higher-power 12V supply is the better fit.
Can this model be used in automation equipment sold into different AC markets?
Yes, its specified input range is 85-305VAC, so it covers a wide AC input span. The output remains a 12V constant-voltage supply with a 2W limit.
Can the IRM-02-12S be used in outdoor control boxes?
The temperature range of -30°C to +85°C, subject to the derating curve, supports demanding indoor equipment environments. Because no IP rating is listed in the provided specs, it should be treated as an enclosed indoor component rather than an exposed outdoor unit.
What is the difference between IRM-02-12S and nearby 12V IRM siblings?
This datasheet covers only the 2W IRM-02 series, so it does not specify other 12V IRM power levels. Within the 2W tier, IRM-02-12 is the PCB mounting style version (33.7 × 22.2 × 15 mm) and IRM-02-12S is the SMD style version (33.7 × 22.2 × 16 mm), both rated 12V and 167mA.
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