5pcs LM317T Adjustable Voltage Regulator 1.2V-37V 1.5A TO-220

Name: 5pcs LM317T Adjustable Voltage Regulator 1.2V-37V 1.5A TO-220
Brand: satkit
SKU: 1C090206
Price: 1.72 EUR
Availability: InStock

Brand: satkit

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1.72€

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The LM317T voltage regulator is an essential electronic component for projects that require a stable, adjustable power supply. This pack includes 5 units of the LM317T regulator in TO-220 package, with the ability to deliver a maximum current of 1.5 amperes and an adjustable voltage range between 1.2V and 37V, ideal for a wide variety of applications.

Main features:

Standard LM317T variable voltage regulator.
Adjustable output voltage from 1.2V to 37V.
Maximum output current of 1.5A, suitable for moderate power circuits.
Low load error of 0.5%, ensuring output stability.
Maximum input voltage of 40V for broad compatibility.
Maximum operating temperature of +125ºC for reliable use in various conditions.
TO-220 package that makes heat dissipation and mounting on boards or heatsinks easier.
Positive polarity and 80dB ripple rejection to minimise interference.

Typical uses:

Adjustable power supplies for electronics projects and prototypes.
Voltage regulation in audio circuits, sensors and microcontrollers.
Applications in power electronics where a stable and adjustable voltage is required.
Replacement or repair of regulators in existing electronic equipment.

Compatibility: Compatible with any circuit that requires an adjustable positive voltage regulator within the specified range. Its TO-220 package makes it easy to integrate into printed circuit boards and allows simple mounting with heatsinks to improve thermal management.

This pack of 5 units is ideal for professionals, students and hobbyists looking for a reliable and versatile voltage regulator for their electronics projects.

Package contents:

5 units of LM317T adjustable voltage regulator 1.2V-37V 1.5A TO-220 package.

Standard LM317T variable voltage regulator
Adjustable output voltage between 1.2V and 37V
Maximum output current: 1.5A
0.5% load error for high accuracy
Maximum input voltage: 40V
Maximum operating temperature: +125ºC
TO-220 package for easy mounting and heat dissipation
80dB ripple rejection for a clean signal
Positive polarity
Pack of 5 units ideal for projects and repairs

Customer Questions & Answers

What additional components are needed to configure different output voltages with this regulator?

To set different output voltages, two resistors are required (one for adjustment and one for reference), preferably with low tolerance for accuracy. An input capacitor (0.1 µF) and an output capacitor (1 µF) are also recommended to improve stability and ripple rejection. The choice of values depends on the desired voltage according to the standard LM317 formula.

What are the key differences between this TO-220 LM317T and a fixed-voltage regulator such as the 7805?

Unlike the 7805, which provides a fixed 5 V output, the LM317T is adjustable from 1.2 V to 37 V depending on the external resistor configuration. Both offer thermal protection and current limiting, but the LM317T provides greater flexibility at the cost of requiring external components for adjustment, while the 7805 is simpler to implement but has a narrower range of applications.

What recommendations are there to ensure a long service life and avoid failures due to overheating in the LM317T?

To maximise durability, it is essential to fit a suitable heatsink if the power dissipated (P = (Vin - Vout) × Iout) exceeds 1–2 W, avoid exceeding the input limits (max 40 V) and current (1.5 A), and ensure adequate ventilation. The built-in thermal protection cuts the output in the event of overheating, but repeated events can shorten service life.

What is the output voltage range of the LM317T?

The LM317T allows an adjustable output voltage from 1.2V to 37V.

What maximum current can this regulator handle?

This regulator can supply a maximum current of 1.5 amperes.

What package does the LM317T come in?

The LM317T comes in a TO-220 package, which makes mounting and heat dissipation easier.

What applications is this regulator suitable for?

It is ideal for adjustable power supplies, voltage regulation in electronic circuits and power electronics projects.

How many units are included in this pack?

The pack includes 5 units of the LM317T regulator.