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NTE403 The NTE Electronics NTE403 is a board-level heat sink made from aluminum alloy. It features a fin height of 12.70mm and a black anodized finish.
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NTE403

Available from 1 distributors
Mfr Name: NTE Electronics
NTE Electronics
The NTE Electronics NTE403 is a board-level heat sink made from aluminum alloy. It features a fin height of 12.70mm and a black anodized finish.
✓ Total Stock: 5 pcs
$ Price Range: $2.00

NTE403 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
Non-Authorised Inventory information
5 pcs
On Request
5 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

NTE403 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Attachment Method
Fin Height
Length
Material
Material Finish
Package Cooled
Shape
Thermal Resistance @ Natural
Type
Width
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NTE403 Description

Short technical summary and product information.

The NTE Electronics NTE403 is a board-level heat sink designed for effective thermal management of power transistors. Constructed from a durable aluminum alloy, it offers a fin height of 0.500" (12.70mm) and a width of 0.710" (18.03mm), with a length of 1.000" (25.40mm). The heat sink has a thermal resistance of 20.30°C/W under natural convection.

 

This heat sink is suitable for cooling packages such as TO-3P, TO-126, TO-127, TO-202, TO-218, and TO-220. It features a rectangular shape with fins and a black anodized material finish for enhanced durability and heat dissipation. The attachment method is bolt-on, providing a secure mounting solution for various applications requiring efficient heat removal from electronic components.

NTE403 Quick Information

Product Type: Heat Sink
Canonical Name: NTE Electronics NTE403 Heat Sink
Subcategory: Thermal Management

NTE403 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

NTE403 Estimated Pricing

Qty Low High
1+ $2.00 $2.00

Estimated market price range - modelled values for guidance only, not live distributor offers.

NTE403 Features

  • Aluminum alloy construction with black anodized finish.
  • Fin height of 12.70mm (0.500").
  • Thermal resistance of 20.30°C/W at natural convection.
  • Bolt-on attachment method for secure mounting.
  • Cools TO-3P, TO-126, TO-220, and similar packages.

NTE403 Applications

  • Ideal for power transistor cooling.
  • Suitable for board-level thermal management.
  • Used with TO-3P and TO-220 packages.
  • Enhances thermal performance in electronics.

NTE403 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the fin height of the NTE403 heat sink?

The fin height of the NTE403 heat sink is 12.70mm (0.500").

What package types can the NTE403 heat sink cool?

The NTE403 heat sink is designed to cool TO-3P, TO-126, TO-127, TO-202, TO-218, and TO-220 packages.

What is the material of the NTE403 heat sink?

The NTE403 heat sink is made of aluminum alloy.

What is the thermal resistance of the NTE403 heat sink?

The thermal resistance of the NTE403 heat sink at natural convection is 20.30°C/W.

How is the NTE403 heat sink attached?

The NTE403 heat sink features a bolt-on attachment method.

What is the RoHS status of the NTE403 heat sink?

The RoHS status of the NTE403 heat sink is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the NTE403 heat sink?

The Moisture Sensitivity Level (MSL) for the NTE403 heat sink is 1 Unlimited.

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