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Available Replacements
641K by wakefield
Image is representational - see manufacturer specifications

Wakefield Authorized Distributor

641K

Heat Sink Passive TO-3 Aluminum Alloy 0.9°C/W Black Anodized

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RoHS Compliant
Packaging
Certificate of Compliance
Description +
Heat Sink Passive TO-3 Aluminum Alloy 0.9°C/W Black Anodized
Search Keywords: 641K
SPECS +
Product Attribute Attribute Value Select Attribute
Supplier: Wakefield
Part No: 641K
Unit of Measure: Per Each
RoHS: Yes
HTS: 7616995090
COO: CN
ECCN: EAR99
Supplier's Standard Package: The item count, length, weight, or volume contained in the supplier’s original packaging for efficient storage, handling, and distribution. 30
Device Cooled: TO-3
Dimension: 76.2 x 104.8 x 25.4 mm
Thermal Resistance: 0.9@250LFM °C/W
Finish: Black Anodized
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Frequently Asked Questions
What replaces 641K?
The recommended replacement for 641K is 642-25AB from Wakefield, available from OnlineComponents.com.
Is 641K RoHS compliant?
Yes, 641K is RoHS compliant.
What is the lead time for 641K?
The standard lead time for 641K is approximately 17 weeks. In-stock quantities ship from OnlineComponents.com.

Price Match Guarantee
We’ll meet or beat any authorized competitor’s published price for this part.
In Stock: 404
Can Ship immediately
On Order:
600   can ship 11/30/26
Minimum Order Quantity:
5
17 Weeks can ship 3/11/27
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Price (USD)
Qty
Unit Price
5
$10.86
30
$10.10
60
$9.11
120
$9.07
270
$9.04
510
$8.09
1,020 +
$7.80
Supplier's Standard Package
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