# Power adapter/inverter Mean Well SPAN02B-03 — 18–36 V input, 2 W output, 0.5 A

**URL:** https://aio.lv/en/product--mean-well-span02b-03--3812974
**Data updated:** 2026-03-27 13:20 (EET)
**Category:** Power Inverters
**Manufacturer:** mean well
**Manufacturer code:** SPAN02B-03
**EAN:** 4021087041119
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 20.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 16.93 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-span02b-03--3812974

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Mean Well SPAN02B-03 is a compact power adapter/inverter with an input voltage range of 18–36 V, rated output power of 2 W and maximum output current of 0.5 A. Designed for low-power DC applications, it is RoHS-compliant and suitable for industrial controls, sensors, and embedded systems that require stable low-wattage conversion.

## Long description

Mean Well SPAN02B-03 is a compact DC-DC converter designed for PCB-mount applications where stable low-power conversion is required. The module accepts a wide input range of 18–36 Vdc and delivers a regulated single output of 3.3 Vdc at up to 0.5 A, with a rated output power of 2 W. Packaged in a SIP through-hole format for straightforward insertion on printed circuit boards, the converter is intended for embedded systems, industrial control modules and sensor interfaces that need a reliable 3.3 V supply from higher-voltage DC rails.
Advantages
The SPAN02B-03 offers a compact footprint and through-hole SIP package that simplifies PCB mounting and mechanical support. Its wide input range of 18–36 V allows use with various DC supply sources, while the regulated 3.3 V output provides a stable voltage for digital electronics and low-power peripherals. Compliance with RoHS ensures reduced hazardous substances, and the converter’s low output power and current rating make it suitable for energy-efficient and temperature-sensitive installations.
Suitable for
 Embedded systems and microcontroller boards requiring 3.3 V from higher-voltage rails
 Industrial control modules and PLC I/O interfaces
 Sensor power for low-current measurement and transmit modules
 Prototyping and small-volume PCB designs where SIP mounting is preferred
Key specifications
 Input voltage range: 18–36 Vdc
 Output voltage: 3.3 Vdc (regulated)
 Maximum output current: 0.5 A
 Rated output power: 2 W
 Package type: SIP through-hole PCB mount
 Application type: DC-DC converter for low-power use
 Standards: RoHS-compliant
How to use
Install the SPAN02B-03 into the PCB using the SIP through-hole pins and ensure correct polarity and secure solder joints. Connect the input to a DC supply within 18–36 V range and verify that the supply can provide any inrush current required by the system. Load the 3.3 V output with devices that do not exceed 0.5 A continuous current. Observe standard PCB layout practices for DC-DC converters: keep input and output traces short, provide adequate grounding and place decoupling capacitors near sensitive circuits as recommended by the system design.
Usage recommendations
Use the converter within specified voltage and current limits to ensure reliable operation. For thermal management, avoid enclosing the module in poorly ventilated spaces when operating near maximum load. Verify compatibility of connected devices with a 3.3 V supply and include fusing or current protection on the input if the application requires additional safety.

## Specifications

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 2576 pc(s) |

### Features

| Feature | Value |
|---|---|
| Input voltage | 18 - 36 |
| Output current | 0.5 A |
| Output power | 2 W |

### Sustainability

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

## FAQ

### How much does the Power adapter/inverter Mean Well SPAN02B-03 cost, and is it available for purchase?

The price is 20.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 18 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 14.07.2026 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: input voltage, 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/inverter Mean Well SPAN02B-03?

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/3812974/58570139_large.webp