# Power adapter MEAN WELL MFM-20-12 20W 12V 90-264V

**URL:** https://aio.lv/en/product--mean-well-mfm-20-12--4026936
**Data updated:** 2026-01-06 11:14 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** mean well
**Manufacturer code:** MFM-20-12
**EAN:** 4021087048934
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.49 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 22.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-mfm-20-12--4026936

## 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

The MEAN WELL MFM-20-12 is a 20W power adapter with an input voltage range of 90-264V and an output voltage of 12V. It is compact with a depth of 49mm and height of 23mm, weighing only 28g. This adapter is RoHS compliant, making it an environmentally friendly choice for powering devices.

## Long description

The MEAN WELL MFM-20-12 is an AC-DC single-output medical open-frame power supply providing 12 V DC at 1.8 A (20 W). Designed for PCB mounting, it supports a wide input range of 90–264 V AC, features 2×MOPP isolation for medical applications, and is RoHS compliant. Its compact dimensions (depth 49 mm, height 23 mm) and light weight (28 g) make it suitable for integration into space-constrained equipment.
Advantages
The MFM-20-12 delivers a regulated 12 V output with up to 1.8 A current while meeting medical isolation standards via 2×MOPP. Its wide input voltage range allows global use without additional converters. PCB-mount form factor and small size simplify installation in embedded or medical devices. RoHS compliance ensures reduced use of hazardous substances.
Suitable for
 Medical and healthcare equipment requiring 2×MOPP isolation
 Embedded systems and PCB-mounted devices
 Low-power instrumentation and control circuits
Key specifications
 Output voltage: 12 V DC
 Output current: 1.8 A (20 W)
 Input voltage: 90–264 V AC
 Isolation: 2×MOPP (medical)
 Mounting: PCB mount, open-frame
 Dimensions: depth 49 mm, height 23 mm
 Weight: 28 g
 Compliance: RoHS
How to use
Mount the MEAN WELL MFM-20-12 directly to the device PCB following the manufacturer’s recommended footprint and soldering guidelines. Connect the AC input according to the device wiring and ensure correct polarity on the 12 V DC output. Observe proper creepage and clearance distances in the system layout to maintain medical isolation performance. Verify output voltage under load before final assembly.
Usage recommendations
Install the module in an environment within its rated input voltage and temperature ranges, provide adequate airflow if enclosed, and follow medical device safety standards when integrating into patient-connected systems. Refer to the manufacturer datasheet for detailed electrical, thermal and mechanical requirements.

## Specifications

| Feature | Value |
|---|---|
| Input voltage | 90 - 264 |
| Output voltage | 12 |
| Output power | 20 W |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | RoHS |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.028 kg |
| Height | 23 mm |
| Depth | 49 mm |

### Logistics data

| Feature | Value |
|---|---|
| Quantity per pack | 200 pc(s) |

## FAQ

### How much does the Power adapter MEAN WELL MFM-20-12 cost, and is it available for purchase?

The price is 27.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 MFM-20-12?

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/4026936/64244171_large.webp