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Mean Well IRM-03-9 Switching Power Supply 3W 9V 333mA - Encapsulated

miniature encapsulated typePCB mouting style

SKU IRM-03-9

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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

Can I use the IRM-03-9 for a 9V control or signal-processing circuit?

Yes, it provides a constant 9V output rated at 3W with 333mA available. That suits low-power 9V control, signal-processing, or interface circuits that stay within a 333mA load range.

Is the IRM-03-9 suitable for compact test or measurement electronics?

It can be a fit for compact test and measurement electronics that need a regulated 9V rail from AC input. The 3W rating makes it appropriate for modest-power analog or control sections rather than larger 9V loads.

Can this 9V model be used in embedded monitoring equipment?

Yes, if the monitoring electronics are designed around a 9V constant-voltage supply and do not exceed 333mA. The wide 85-305VAC input range is useful for embedded equipment intended for more than one mains standard.

Would the IRM-03-9 work on a PCB in a space-limited industrial device?

Yes, the PCB mounting style and compact 37.0 x 24.0 x 15.0 mm package support internal integration on space-limited boards. With 3W available, it is aimed at low-power 9V circuitry inside industrial or embedded products.

Can the IRM-03-9 handle cold or hot operating environments?

The specified operating temperature range is -30°C to +85°C, which supports use in equipment exposed to a broad temperature window. No IP rating is listed, so it is best used inside protected housings instead of exposed outdoor environments.

How does the IRM-03-9 compare with the other 9V models in the series?

For 9V output, the IRM line includes IRM-01-9 and IRM-01-9S at 1W and 111mA, IRM-02-9 and IRM-02-9S at 2W and 222mA, and IRM-03-9S at 3W and 333mA. The IRM-03-9 is the 3W PCB-mount 9V option at the top of that low-power 9V group.

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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-03-9 Switching Power Supply 3W 9V 333mA - Encapsulated

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Mean Well IRM-03-9 Switching Power Supply 3W 9V 333mA - Encapsulated

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