Over 15 years experience of providing support of MEAN WELL Power Supplies
Image shown is a representation only. Exact specifications should be obtained from the product datasheet.
Mean Well IRM-03-24 Switching Power Supply 3W 24V 125mA - Encapsulated
Overview
IRM-03-24 is the 24V output model of this series: rated current 125mA, rated power 3W, typical efficiency 80%. 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
OUTPUT
- DC VOLTAGE
- 24V
- RATED CURRENT
- 125mA
- CURRENT RANGE
- 0 ~ 125mA
- RATED POWER
- 3W
- RIPPLE & NOISE (max.)Note.2
- 240mVp-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 8ms/115Vac at full load
INPUT
- VOLTAGE RANGE
- 85 ~ 305Vac 120~430Vdc
- FREQUENCY RANGE
- 47 ~ 63Hz
- EFFICIENCY (Typ.)
- 80%
- 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
- 25.2 ~ 32.4V 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
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-03-24 for a small 24V industrial sensor or control circuit?
Yes, it is a constant-voltage 24V power supply rated at 3W. That fits low-power 24V control, sensing, and interface electronics that stay within the 3W output limit.
Is the IRM-03-24 suitable for embedded 24V monitoring or signaling boards?
It can be used when the embedded load requires regulated 24V and remains within the 3W rating. The encapsulated miniature body measures 37.0 × 24.0 × 15.0 mm, which supports compact internal designs.
Would the IRM-03-24 work for low-power automation electronics that operate on 24V DC?
Yes, for smaller 24V automation modules, it provides constant-voltage output from an 85-305VAC input. It is intended for lighter 24V electronic loads rather than higher-power field devices.
Can this model be used in equipment shipped to different AC mains regions?
Yes, the specified input range is 85-305VAC, which supports broad AC input coverage. That is useful for OEM equipment using a fixed 24V, 3W internal supply across multiple markets.
Is the IRM-03-24 suitable for outdoor enclosures?
The unit is rated for operation from -30°C to +85°C, so its temperature range is broad. No IP rating is provided in the listed specs, so exposed outdoor suitability is not established by this product data.
How does the IRM-03-24 compare with other 24V IRM models?
Within the IRM-03 series, the 24V output comes in two versions: IRM-03-24 (PCB mounting style, 37 x 24 x 15 mm) and IRM-03-24S (SMD style, 37 x 24 x 16 mm), both rated 3W and 125mA. The series also covers 3.3V, 5V, 9V, 12V and 15V outputs, all at 3W. The IRM-03-24 is the PCB mounting style 3W option in that 24V family.
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.
Write a review
Reviews are checked before publishing. By submitting you confirm this is your genuine experience with this product.
Submitting your review…
It's published and now helps other buyers.
We're checking it and it'll appear shortly.
Please try again.
