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Mean Well IRM-03-24S Switching Power Supply 3W 24V 125mA - Encapsul...
Overview
IRM-03-24S is the 24V output model of this series: rated current 125mA, rated power 3W, typical efficiency 80%. Type S: SMD 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
- 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-03-24S to power a 24V industrial sensor or transmitter?
Yes, this model is a constant-voltage 24V supply rated at 3W with 125mA output. That makes it a fit for low-power 24V sensor, transmitter, or interface circuits that stay within a 125mA load budget.
Is the IRM-03-24S suitable for a compact automation control board?
It can be a good fit for compact automation boards that need a low-power 24V rail rather than a higher-current field supply. The miniature encapsulated SMD package measures 37.0 x 24.0 x 16.0 mm and provides up to 3W.
Can this 24V power supply be used for relay or signal interface circuits?
Yes, if the relay or interface section is designed for a 24V constant-voltage source and the total load does not exceed 125mA. The 3W rating makes it more appropriate for light-duty control and signaling functions than for larger 24V loads.
Is the IRM-03-24S appropriate for wide-input equipment sold into different AC regions?
Yes, its 85-305VAC input range supports equipment intended for varied mains environments. That wide input range is useful for industrial and embedded products that may be deployed across multiple regions while still needing a 24V output.
Can the IRM-03-24S be used outdoors or in harsh temperature conditions?
The operating temperature range is -30°C to +85°C, so it can handle a broad temperature span inside protected equipment. No IP rating is listed, so it is better suited to enclosed indoor or sheltered assemblies rather than exposed outdoor use.
How does the IRM-03-24S compare with other IRM low-power 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-03-24S sits at the 3W, 24V level in the SMD-style version.
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