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401A Board level heat sink from Wakefield-Vette designed for TO-3 and stud mount power packages. Features aluminum construction with black anodized finish and a thermal resistance of 2.60°C/W under natural convection.
Mfr Part #:

401A

Available from 1 distributors
Mfr Name: Wakefield-Vette
Wakefield-Vette
Board level heat sink from Wakefield-Vette designed for TO-3 and stud mount power packages. Features aluminum construction with black anodized finish and a thermal resistance of 2.60°C/W under natural convection.
✓ Total Stock: 1 pcs
$ Price Range: $3.11 - $4.48

401A Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Hybrid Electronics ✓
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1 pcs
On Request
1 pcs On Request 1 On Request On Request On Request 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.

401A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Attachment Method
Fin Height
Length
Material
Material Finish
Mounting Type
Package Cooled
Power Dissipation @ Temperature Rise
Shape
Thermal Resistance @ Forced Air Flow
Thermal Resistance @ Natural
Type
Width
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401A Description

Short technical summary and product information.

The Wakefield-Vette 401A is a board level heat sink designed for cooling TO-3 and stud mount power packages. It features a rectangular fin shape made from aluminum with a black anodized finish for enhanced heat dissipation. The heat sink has dimensions of 38.10mm length, 120.65mm width, and 31.75mm fin height.

 

Under natural convection, the 401A provides a typical thermal resistance of 2.60°C/W. With forced air cooling at 250 LFM, the thermal resistance drops to 1.50°C/W. The heat sink is rated for a power dissipation of 30.0W at an 80°C temperature rise. It attaches to the device using a bolt-on method, making it suitable for secure mounting in various applications.

 

This heat sink is suitable for use in power supplies, amplifiers, and industrial equipment where reliable thermal management is required. The black anodized finish provides corrosion resistance and improved thermal emissivity.

401A Quick Information

Product Type: Board Level Heat Sink
Canonical Name: Board Level Heat Sink for TO-3, Rectangular with Fins
Subcategory: Rectangular Fin Heat Sink for TO-3

401A Compliance

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

401A Estimated Pricing

Qty Low High
1+ $4.48 $4.48
10+ $4.23 $4.23
25+ $3.98 $3.98
50+ $3.73 $3.73
100+ $3.48 $3.48
250+ $3.23 $3.23
500+ $3.17 $3.17
1,000+ $3.11 $3.11

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

401A Features

  • Board level heat sink for TO-3 packages.
  • Aluminum construction with black anodized finish.
  • Thermal resistance 2.60°C/W at natural convection.
  • 30.0W power dissipation at 80°C temperature rise.
  • Rectangular fin design with 38.10x120.65mm footprint.

401A Applications

  • Cools power transistors in TO-3 packages.
  • Suitable for industrial power supplies.
  • Ideal for audio amplifier heat management.
  • Works with forced air cooling applications.
  • Used in motor drive and inverter systems.

401A FAQs

7 frequently asked questions generated from this part’s specifications.
What packages does the Wakefield-Vette 401A heat sink cool?

The heat sink is designed for TO-3 and stud mount packages.

Is the Wakefield-Vette 401A RoHS compliant?

The database lists it as RoHS3 Compliant, but this status is unverified (low confidence).

What is the thermal resistance under natural convection?

The typical thermal resistance is 2.60°C/W under natural convection.

What is the thermal resistance at 250 LFM forced air?

The typical thermal resistance is 1.50°C/W at 250 LFM forced air flow.

What is the maximum power dissipation?

The heat sink can dissipate 30.0W at an 80°C temperature rise.

What material is the heat sink made of?

It is fabricated from aluminum with a black anodized finish.

What are the dimensions of the 401A heat sink?

The heat sink measures 38.10mm long, 120.65mm wide, with a fin height of 31.75mm.

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