# Power adapter MEAN WELL MDD01N-12 1 W 12 V Input 21.6-26.4 V

**URL:** https://aio.lv/en/product--mean-well-mdd01n-12--3812886
**Data updated:** 2026-04-20 17:28 (EEST)
**Category:** Power Supplies (PSU)
**Manufacturer:** mean well
**Manufacturer code:** MDD01N-12
**EAN:** 4021087043267
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 12.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-mdd01n-12--3812886

## 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 MDD01N-12 is a compact power adapter with an output of 1 W and a voltage of 12 V. It operates with an input voltage range of 21.6 to 26.4 V and is compliant with RoHS standards, ensuring environmental safety. Ideal for various electronic applications requiring reliable power supply.

## Long description

The MEAN WELL MDD01N-12 is a PCB-mount DC-DC medical converter designed for low-power applications. It accepts a nominal input range of 21.6–26.4 V DC and provides isolated dual outputs of ±12 V at ±0.042 A. The module is supplied in a SIP through-hole package and includes reinforced isolation (2xMOPP) suitable for medical equipment designs requiring patient safety separation.
Advantages
The converter offers compact PCB mounting in a SIP through-hole form factor, providing dual isolated outputs with low power consumption and compliance with medical isolation requirements (2xMOPP). Its narrow input range and steady dual ±12 V outputs make it suitable for small signal circuits and isolated power domains on medical PCBs.
Suitable for
Low-power medical electronic modules requiring isolated dual rails
Signal conditioning, sensors, and low-current analog circuitry
PCB-mounted designs where SIP through-hole packaging is preferred
When it may not be suitable
This module delivers only 1 W total and ±0.042 A per rail, so it is not suitable for applications needing higher output current or significant power. The input is limited to 21.6–26.4 V DC; systems with widely varying or lower input voltages will require a different converter or a preceding regulator.
Key specifications
Function: DC-DC converter (medical)
Mounting: SIP through-hole PCB mount
Input voltage: 21.6–26.4 V DC
Output voltages: ±12 V DC
Output current: ±0.042 A per rail
Output power: 1 W
Isolation: reinforced isolation (2xMOPP)
How to use
Solder the SIP through-hole pins to the PCB following the manufacturer’s recommended footprint and maintain required creepage and clearance distances for medical isolation. Provide the specified 21.6–26.4 V DC input and verify polarity before powering. Route output traces and grounding to preserve isolation and minimize noise; follow board layout guidelines for isolated converters and include appropriate input filtering if needed.
What to consider before purchase
Verify that ±12 V at ±0.042 A and 1 W total meet your load requirements
Confirm your system supplies a stable 21.6–26.4 V DC input
Ensure SIP through-hole mounting and PCB space suit your design
Check required medical isolation levels and regulatory testing for your end product
Usage recommendations
Use this converter for low-current, isolated dual-rail needs on medical PCBs; keep trace lengths short, separate analog and digital grounds where appropriate, and include input decoupling to maintain stable operation.

## Specifications

| Feature | Value |
|---|---|
| Input voltage | 21.6 - 26.4 |
| Output voltage | 12 |
| Output current | -0.042 A |
| Output power | 1 W |

### Certificates

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

### Logistics data

| Feature | Value |
|---|---|
| Quantity per pack | 3000 pc(s) |

## FAQ

### How much does the Power adapter MEAN WELL MDD01N-12 cost, and is it available for purchase?

The price is 15.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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

### Where can I download the instructions for Power adapter MEAN WELL MDD01N-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/3812886/64229786_large.webp