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Mean Well IRM-03-12 Switching Power Supply 3W 12V 250mA - Encapsulated

miniature encapsulated typePCB mouting style

SKU IRM-03-12

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The IRM-03 is a 3W Mean Well power converter (input range: 85~305VAC, operating temperature: -30~+85℃).

Key Features

✓ Input voltage range: 85~305VAC
✓ 3KVAC reinforced I/O isolation
✓ Cooling by free air convection — no minimum load required
✓ Wide operating temperature: -30~+85℃
✓ Protections: Short circuit / Overload / Over voltage
✓ Safety approvals: UL62368-1, TUV EN62368, TUV EN60335-1, EAC TP TC 004 BSMI CNS14336-1
✓ 3 years warranty

Frequently Asked Questions

What are the main output specifications of the Mean Well IRM-03-12?

The IRM-03-12 is a 3W encapsulated switching power supply with a regulated 12V DC output. Its rated output current is 250mA, making it suitable for low-power PCB-based equipment that needs a compact internal power source.

What input voltage range does the IRM-03-12 support?

This model supports a universal input range of 85 to 305VAC and 120 to 430VDC. That wide range helps it fit products intended for different mains environments without needing region-specific input versions.

What types of applications is the IRM-03-12 best suited for?

The IRM-03-12 is designed for compact embedded applications where space, low standby power, and board-level integration matter. It is a practical choice for OEM and industrial electronics that need a small enclosed AC-DC power module rather than a larger chassis-style supply.

Can the IRM-03-12 operate in demanding temperature conditions?

Yes, the specified working temperature range is -30°C to +85°C, subject to the output derating curve. That makes it a strong candidate for equipment exposed to a broad range of indoor or controlled industrial temperature conditions.

What protection and safety features are included in the IRM-03-12?

This model includes short circuit, overload, and over voltage protection, with overload behavior specified as hiccup mode with auto-recovery. It is also listed with isolation class II and references multiple safety and EMC standards, which supports use in professionally designed equipment.

How compact is the Mean Well IRM-03-12 compared with larger internal power supplies?

The IRM-03-12 is much smaller than conventional enclosed or open-frame power supplies, with a PCB mounting size of 37 x 24 x 15mm. Its encapsulated format is intended for space-constrained designs that need a low-power internal AC-DC module.

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Key Features

✓ Input voltage range: 85~305VAC

✓ 3KVAC reinforced I/O isolation

✓ Cooling by free air convection — no minimum load required

✓ Wide operating temperature: -30~+85℃

✓ Protections: Short circuit / Overload / Over voltage

✓ Safety approvals: UL62368-1, TUV EN62368, TUV EN60335-1, EAC TP TC 004 BSMI CNS14336-1

✓ 3 years warranty

Mean Well IRM-03-12 Switching Power Supply 3W 12V 250mA - Encapsulated

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Mean Well IRM-03-12 Switching Power Supply 3W 12V 250mA - Encapsulated

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