KK 1 3.96 TO 5

Heat Sink, Black Anodised, 40 K/W, TO-5, 21.4 mm, 10.1 mm, 3.96 mm

⚠️ Given the current worldwide supply chain situation, we kindly ask you to take the information shown as a guideline.

Manufacturer: FISCHER ELEKTRONIK
Product type: Natural Convection Heat Sinks
SVHC: No SVHC (25-Jun-2025)
Product Range: KK 1 Series
Packages Cooled: TO-5
Heat Sink Material: Aluminium
Thermal Resistance: 40K/W
External Width - Metric: 21.4mm
External Height - Metric: 10.1mm
External Length - Metric: 3.96mm
External Width - Imperial: 0.84"
External Diameter - Metric: -
External Height - Imperial: 0.4"
External Length - Imperial: 0.16"
External Diameter - Imperial: -

Delivery and price
Units per pack	100
Price	1.46 €
Current stock	10+
Lead time	30 days

Datasheet

Updated at April 3, 2026