FK 254 1 SA 3 TO 3

Heat Sink, 5.4 K/W, TO-3, 46 mm, 25.4 mm, 46 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: FK 254 Series
Packages Cooled: TO-3
Heat Sink Material: Aluminium
Thermal Resistance: 5.4K/W
External Width - Metric: 46mm
External Height - Metric: 25.4mm
External Length - Metric: 46mm
External Width - Imperial: 1.81"
External Diameter - Metric: -
External Height - Imperial: 1"
External Length - Imperial: 1.81"
External Diameter - Imperial: -

Delivery and price
Units per pack	50
Price	6.01 €
Current stock	10+
Lead time	30 days

Datasheet

Updated at April 3, 2026