# Voltage regulator PCB kit H-TRONIC for LM317-T output 1.2–32 V DC (kit without regulator)

**URL:** https://aio.lv/en/product--h-tronic-115967--3691637
**Data updated:** 2026-03-27 13:20 (EET)
**Category:** Electronics Accessories
**Manufacturer:** H-TRONIC
**Manufacturer code:** 115967
**EAN:** 4016138115963
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 21.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 17.76 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--h-tronic-115967--3691637

## 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

PCB kit by H-TRONIC designed to implement an adjustable LM317-T based voltage regulator with an output range of 1.2–32 V DC. Supplied as a kit without the LM317 regulator, the board includes pads and trim potentiometer footprint for setting output voltage, mounting holes and connections for input, output and adjust. Intended for electronics assembly, prototyping and power supply projects requiring an adjustable DC output.

## Long description

PCB kit by H-TRONIC designed to implement an adjustable LM317-T based voltage regulator with an output range of 1.2–32 V DC. The board is supplied as a kit without the LM317 regulator and provides a compact layout with pads for the regulator in TO-220 format, a trim potentiometer footprint for setting the output voltage, mounting holes and clearly labelled input, output and adjust connections. The kit includes a detailed assembly manual and is intended for electronics assembly, prototyping and power supply projects that require a manually adjustable DC output.
Advantages
The printed circuit board offers a ready-made layout for a proven LM317 regulator circuit, reducing time spent on designing and etching custom PCBs. Clear silk-screen labels and dedicated pads simplify component placement and soldering, while the trim potentiometer footprint enables fine adjustment of the output voltage between 1.2 and 32 V DC. Mounting holes make it easy to secure the board in enclosures or test rigs. As the regulator is not included, you can select the exact LM317-T device and thermal mounting method suitable for your application.
Suitable for
Building adjustable bench power supplies for electronics testing
Prototyping circuits that require a variable DC voltage source
Repair or upgrade of existing equipment using LM317-based regulation
Educational projects and hands-on learning about linear voltage regulators
Key specifications
Output voltage range: 1.2–32 V DC
Maximum recommended input voltage: up to 25 V AC (observe regulator limits)
Regulator footprint: TO-220 package (LM317-T compatible)
Board dimensions: approximately 50 mm (length) × 31 mm (width)
Includes pads for trim potentiometer, input/output/adjust terminals and mounting holes
Supplied as a kit without the LM317 regulator; assembly manual included
How to use
Assemble components on the PCB following the supplied manual: solder the trim potentiometer, terminal connectors and any required capacitors or resistors specified in the assembly instructions. Mount the LM317-T regulator into the TO-220 footprint and, if necessary, attach an appropriate heatsink using the board’s mounting provision and insulating hardware if isolation is required. Apply input voltage within the specified limits, adjust the trim potentiometer to set the desired output voltage, and verify the output with a multimeter before connecting sensitive loads.
Usage recommendations
Use an LM317-T regulator rated for the expected input-output voltage differential and load current, and provide adequate heat dissipation. Observe correct polarity and grounding when connecting the input and output. Follow the assembly manual for recommended capacitor placement to ensure regulator stability. For persistent or high-power loads, choose a regulator with suitable thermal characteristics and mount it on a heatsink; consider fusing the input for added protection.

## FAQ

### How much does the H-TRONIC LM317-T voltage regulator PCB kit 1.2–32 V cost, and is it available for purchase?

The price is 21.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 49 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 H-TRONIC 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 H-TRONIC 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

## Image

https://aio.lv/img/cache/product/3691637/51397977_large.webp