# Diode THT 400V 3A DO201 – general-purpose through-hole rectifier diode, 400 V, 3 A, DO-201 package

**URL:** https://aio.lv/en/product--diode-tht-400v-3a-do201-general-purpose-through-hole-rectifier-diode-400-v-3-a-do-201-package--6653662
**Data updated:** 2026-02-12 14:21 (EET)
**Category:** Other Repair Parts
**Manufacturer code:** EB608501357#
**EAN:** 3100000735425
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1.15 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 0.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--diode-tht-400v-3a-do201-general-purpose-through-hole-rectifier-diode-400-v-3-a-do-201-package--6653662

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Through-hole diode specified for 400 V reverse voltage and 3 A forward current in a DO-201 package. Designed for general-purpose rectification, power supply protection, and basic power conversion tasks. Suitable for PCB mounting in repair, prototyping, and small-scale electronics where a robust THT diode with these electrical parameters is required.

## Long description

The Diode THT 400V 3A DO201 is a general-purpose through-hole rectifier diode rated for 400 volts reverse voltage and 3 amperes forward current, supplied in a DO-201 package for PCB mounting. It is intended for basic rectification tasks, power supply protection and simple power conversion where a robust THT diode with these electrical characteristics is required. The component's mechanical format and lead spacing suit repair work, prototyping and small-scale electronic assemblies that need a reliable discrete rectifier.
Advantages
This through-hole diode combines a 400 V reverse voltage rating with a continuous forward current capability of 3 A, offering a balance of voltage endurance and current handling in a compact DO-201 package. Its THT form factor simplifies mounting and replacement on printed circuit boards without the need for surface-mount equipment. The diode's straightforward, single-junction design provides predictable rectification behavior and compatibility with common power-supply topologies.
Suitable for
Rectification in low- to medium-power DC power supplies
Reverse-voltage protection in consumer and industrial circuits
Repair and replacement of through-hole rectifiers on PCBs
Prototyping and bench-power conversion experiments
Simple motor drive and charger circuits with matching voltage/current requirements
Key specifications
Maximum reverse voltage: 400 V
Maximum forward current (continuous): 3 A
Package type: DO-201 through-hole
Mounting style: PCB leaded (through-hole)
Application type: general-purpose rectification and protection
How to use
Mount the diode on the PCB according to the circuit polarity markings, ensuring the cathode and anode are connected to the correct traces for proper rectification or protection. Observe recommended soldering practices for through-hole components to avoid thermal damage to the diode and surrounding parts. Verify that the operating conditions in the circuit do not exceed the diode's maximum reverse voltage or continuous forward current ratings; include appropriate heatsinking or current sharing if the device is expected to run near its limits.
Usage recommendations
For reliable operation, use this diode within its rated voltage and current limits and allow for margin in design to accommodate transients. When used in power circuits with sustained currents near 3 A, ensure adequate copper area or a small heatsink is provided on the PCB to manage junction temperature. In designs exposed to voltage spikes, pair the diode with transient suppression components or snubber networks as appropriate.

## FAQ

### How much does the Diode THT 400V 3A DO201 cost, and is it available for purchase?

The price is 1.15 € (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 16.07.2026 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, Bank cards on-line, Apple Pay, Google Pay. 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.

### 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

## Image

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