# Power adapter/inverter mean well IRM-01-3.3S, 1 W, 3.3 V output, 0.3 A, input 85–305 V

**URL:** https://aio.lv/en/product--mean-well-irm-01-33s--3710801
**Data updated:** 2026-03-27 13:20 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** mean well
**Manufacturer code:** IRM-01-3.3S
**EAN:** 4021087034791
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 14.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-irm-01-33s--3710801

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Mean Well IRM-01-3.3S is a compact 1 W power adapter/inverter with universal AC input 85–305 V and fixed 3.3 V DC output at up to 0.3 A. It weighs 19 g and has RoHS compliance. With dimensions suitable for space‑constrained installations (depth 33.7 mm, height 15 mm), it’s intended for low‑power electronics, embedded systems and signal devices.

## Long description

Mean Well IRM-01-3.3S is a compact 1 W AC-DC encapsulated power module with a universal input range of 85–305 VAC and a fixed 3.3 V DC output capable of supplying up to 0.3 A. Designed for surface-mount applications and space-constrained installations, this miniature power adapter provides regulated low-voltage power for small electronic systems while meeting RoHS environmental standards. Its small footprint and low weight make it suited to embedded designs, signal processing modules and compact consumer electronics where efficient, reliable low-power conversion is required.
Advantages
The module delivers stable 3.3 V output at low currents with high input voltage tolerance, enabling use across different mains supplies. Its encapsulated SMD form factor simplifies integration onto PCBs and helps protect internal components from dust and mechanical stress. Low weight and minimal depth make it practical for tight enclosures and portable devices. Compliance with RoHS supports environmentally conscious designs.
Suitable for
 Embedded systems and microcontroller boards requiring 3.3 V supply
 Signal processing and sensor modules with low power demand
 Compact consumer electronics and portable devices
 Industrial control units with space limitations
Key specifications
 Power output: 1 W nominal
 Input voltage range: 85–305 VAC (universal AC input)
 Output voltage: 3.3 V DC (fixed)
 Maximum output current: 0.3 A
 Mounting type: SMD / surface-mount
 Encapsulation: encapsulated module for PCB integration
 Dimensions: depth 33.7 mm, height 15 mm (compact footprint)
 Weight: approximately 19 g
 Environmental: RoHS compliant
How to use
Integrate the module onto the printed circuit board following standard SMD soldering guidelines and the manufacturer’s recommended land pattern to ensure reliable solder joints. Provide AC input within the specified 85–305 VAC range and route the DC 3.3 V output to the target circuitry, observing polarity and any decoupling requirements. Allow for adequate creepage and clearance when routing mains traces near low-voltage circuits and consider placing a thermal relief or ventilation if the module is enclosed in a small case to maintain safe operating temperature.
Usage recommendations
Use filtering and transient protection on the AC input when deploying in electrically noisy environments. Add local decoupling capacitors on the 3.3 V output close to sensitive ICs to stabilize supply and reduce noise. Verify thermal conditions in confined enclosures and avoid continuous operation at maximum rated current without ensuring sufficient heat dissipation.

## Specifications

| Feature | Value |
|---|---|
| Input voltage | 85 - 305 |
| Output current | 0.3 A |
| Output power | 1 W |

### Technical details

| Feature | Value |
|---|---|
| Sustainability certificates | RoHS |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.019 kg |
| Height | 15 mm |
| Depth | 33.7 mm |

### Logistics data

| Feature | Value |
|---|---|
| Quantity per pack | 640 pc(s) |

## FAQ

### How much does the Power adapter mean well IRM-01-3.3S 1 W cost, and is it available for purchase?

The price is 17.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All mean well products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized mean well service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Power adapter mean well IRM-01-3.3S 1 W?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/3710801/58541692_large.webp