218-40CTE3 SMD top mount heat sink from Wakefield-Vette, made of copper with tin plating. Features 10.16mm fin height, 31°C/W natural thermal resistance, and 21°C/W at 200 LFM forced air.
Mfr Part #:

218-40CTE3

Available from 1 distributors
Mfr Name: Wakefield-Vette
Wakefield-Vette
SMD top mount heat sink from Wakefield-Vette, made of copper with tin plating. Features 10.16mm fin height, 31°C/W natural thermal resistance, and 21°C/W at 200 LFM forced air.
Total Stock: 3,760 pcs
$ Price Range: $0.54 - $0.92

218-40CTE3 Available from 1 distributor

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
3,760 pcs
3760 pcs On Request 1 On Request On Request On Request On Request On Request

218-40CTE3 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Attachment Method
Fin Height
Lead Style
Length
Material
Material Finish
Package Cooled
Power Dissipation @ Temperature Rise
SVHC Present
Shape
Tape & Reel
Thermal Resistance @ Forced Air Flow
Thermal Resistance @ Natural
Type
Width

218-40CTE3 Description

Short technical summary and product information.

The Wakefield-Vette 218-40CTE3 is a surface mount heat sink designed for cooling SMD packages. It is constructed from copper with a matte tin plated finish, ensuring excellent thermal conductivity and corrosion resistance. The heat sink has a rectangular shape with fins and measures 22.86mm (0.900") in width, 8.13mm (0.320") in length, and 10.16mm (0.400") in height. It utilizes an SMD pad attachment method for easy mounting. Thermally, the 218-40CTE3 offers a natural convection thermal resistance of 31.00°C/W and a forced air thermal resistance of 21.00°C/W at 200 LFM. It can dissipate up to 2.0W at a 62°C temperature rise. This heat sink is RoHS3 compliant and has an MSL of 1 (unlimited). It is suitable for applications requiring efficient thermal management in confined spaces.

218-40CTE3 Quick Information

Product Type: Surface Mount Heat Sink
Series: 218
Canonical Name: Wakefield-Vette 218-40CTE3 SMD Heat Sink, Copper, Tin Plated, 10.16mm Height
Subcategory: Board Level Heat Sinks

218-40CTE3 Compliance

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

218-40CTE3 Estimated Pricing

Qty Low High
1+ $0.92 $0.92
10+ $0.81 $0.81
25+ $0.79 $0.79
50+ $0.76 $0.76
100+ $0.72 $0.72
250+ $0.68 $0.68
500+ $0.66 $0.66
1,000+ $0.63 $0.63
5,000+ $0.54 $0.54

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

218-40CTE3 Features

  • Copper construction with tin plating.
  • SMD pad attachment for easy mounting.
  • Natural convection thermal resistance of 31°C/W.
  • Forced air resistance of 21°C/W at 200 LFM.
  • Power dissipation of 2W at 62°C rise.

218-40CTE3 Applications

  • Used for cooling SMD packages in power electronics.
  • Ideal for thermal management in compact designs.
  • Suitable for applications requiring moderate heat dissipation.
  • Common in telecommunications and industrial systems.

218-40CTE3 FAQs

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

10.16 mm (0.400 inches).

What material is the heat sink made of?

Copper with tin plating.

What is the thermal resistance?

31.00°C/W natural convection, 21.00°C/W at 200 LFM forced air.

What is the power dissipation?

2.0W at 62°C temperature rise.

What is the attachment method?

SMD Pad.

Is the heat sink RoHS compliant?

Yes, RoHS3 Compliant (unverified).

What package types does this heat sink cool?

SMD packages.

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