Heat Sink PI49 TO-220 20mm x 16mm x 12.5mm – Passive Aluminium Cooler

Original price was: ₹6.00.Current price is: ₹5.00.

SKU: 2026 Category: Tags: , , , , , , , , ,
Brand:Generic

Description

Heat Sink PI49 TO-220 20mm x 16mm x 12.5mm is a compact passive aluminium cooler engineered specifically for TO-220 package devices. Designed to clip or bond directly onto voltage regulators, transistors, MOSFETs, and linear ICs in the TO-220 footprint, this heat sink efficiently dissipates heat through its finned aluminium body — keeping your components within safe operating temperatures without fans or additional hardware.

Why Choose the Heat Sink PI49 TO-220?

  • Precision TO-220 fit – the PI49 profile is purpose-designed for the TO-220 package, ensuring flush, thermally efficient contact with the device tab for maximum heat transfer.
  • Compact 20 x 16 x 12.5 mm footprint – low-profile design fits tight PCB layouts and enclosed enclosures without compromising neighbouring components.
  • Aluminium construction – lightweight yet highly conductive, the extruded aluminium body draws heat away from the device tab rapidly and disperses it through the fin array via natural convection.
  • Passive & silent operation – no moving parts, no noise, no maintenance. Ideal for power supply stages, motor drivers, and audio amplifier circuits.
  • Broad component compatibility – suits any TO-220 packaged device including linear voltage regulators (7805, LM317), power MOSFETs, BJTs, triacs, and SCRs.

Key Features

  • Model: PI49
  • Package compatibility: TO-220
  • Dimensions: 20mm (L) × 16mm (W) × 12.5mm (H)
  • Material: Extruded aluminium
  • Cooling type: Passive (fanless, natural convection)
  • Mounting: Clip-on or adhesive (depending on variant)
  • Finish: Natural aluminium or anodised (as stocked)
  • Supplied individually

Technical Specifications

Attribute Value
Product Model PI49
Package Type TO-220
Length 20 mm
Width 16 mm
Height 12.5 mm
Material Aluminium (extruded)
Cooling Method Passive convection
Mounting Method Clip-on / thermal adhesive
Operating Temperature –40°C to +125°C
Compatible Packages TO-220, TO-220AB, TO-220F (insulated tab)

Installation

  • Clip-on: Align the heat sink clip with the TO-220 device body and press firmly until the clip engages securely over the package.
  • Adhesive mount: Clean the device tab with isopropyl alcohol, apply thermal adhesive or pad, press the heat sink firmly against the tab, and allow to cure before powering on.
  • For higher power applications, use a thermal interface material (thermal paste or pad) between the device tab and heat sink base to minimise contact resistance.
  • Ensure fins are oriented vertically where possible to maximise natural convection airflow.

Typical Applications

  • Linear voltage regulators (7805, 7812, LM317, LM7905, etc.)
  • Power MOSFETs and BJT transistors in TO-220 packages
  • Triacs, SCRs, and IGBTs for motor control and switching circuits
  • Audio amplifier output stages
  • DC-DC converter and power supply designs
  • Industrial control boards and embedded power electronics
0 of 0 reviews

Sorry, no reviews match your current selections

Heat Sink PI49 TO-220 20mm x 16mm x 12.5mm – extruded aluminium passive cooler purpose-built for TO-220 package devices. Suits voltage regulators, MOSFETs, transistors, and triacs. Compact low-profile design with clip-on or adhesive mounting for fast, tool-free installation.