Fischer Elektronik Heatsink Retaining Spring for use with LAM Heatsink, SK Heatsink, TO-218, TO-220, TO-247, TO-248, TO-3P

Enrgtech Part No: ET14085705
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Manufacturer Part No:
THFU 2
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Manufacturer: Fischer Elektronik

THFU-2 Fischer Elektronik Heatsink Retaining Spring for use with LAM Heatsink, SK Heatsink, TO-218, TO-220, TO-247, TO-248, TO-3P

Product Information

For Use With:

LAM Heatsink, SK Heatsink, TO-218, TO-220, TO-247, TO-248, TO-3P

Accessory Type:

Retaining Spring

Checking for live stock

The Fischer Elektronik THFU 2 is a stainless‑steel retaining spring engineered for secure mounting of TO‑style semiconductor packages (TO‑218, TO‑220, TO‑247, TO‑248, TO‑3P) to LAM and SK series heatsinks. It enables reliable thermal contact and mechanical fixation under vibration and thermal cycling conditions. The compact clip‑style design ensures fast installation and consistent pressure across the interface, reducing thermal resistance and improving device reliability in power conversion, industrial electronics, and thermal management applications.

Standout Features and Benefits of Choosing the Fischer Elektronik Heatsink Retaining Spring

Stainless‑steel construction offers corrosion resistance and long service life.
Compatible with a broad range of semiconductor packages: TO‑218, TO‑220, TO‑247, TO‑248, TO‑3P.
Clip‑style mounting secures the device to the heatsink without additional hardware.
Ensures uniform contact pressure for improved thermal transfer.
Reduces assembly time compared to screw‑mounted alternatives.
Fits LAM and SK series heatsinks from Fischer Elektronik.

Engineered for Thermal & Mechanical Stability

The THFU 2 retaining spring is designed to deliver dependable performance in demanding electronics environments. Maintaining consistent clamping force keeps the semiconductor package flush against the heatsink base, reducing the risk of hotspots and delamination over the operating life. Its stainless‑steel material withstands repeated thermal cycles and mechanical stress, making it well‑suited for industrial power modules, converters, and electronics assemblies where reliability is critical.

Wide Application Range

Mounting TO‑220 or TO‑247 packaged transistors or modules onto LAM/SK heatsinks in power supplies.
Securing power semiconductors in industrial inverters or motor drives.
Use in high‑reliability electronics.
Thermal management in telecom or data‑centre electronics with compact heatsinks.
Retrofit or field‑service applications.

Retaing Springs for Transistors Data Sheet(Technical Reference)

THFU 2 Drawing(Technical Reference)

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FAQs

Yes. We ship THFU 2 Internationally to many countries around the world.

Yes. You can also search THFU 2 on website for other similar products.

We accept all major payment methods for all products including ET14085705. Please check your shopping cart at the time of order.

We use our internationally recognized delivery partners UPS/DHL. Collection of ET14085705 can also be arranged for the customer by international shipments through contacting our customer support team. Additionally, you can also search"Fischer Elektronik" products on our website by using Enrgtech's Unique Manufacturing Part Number ET14085705.

You can order Fischer Elektronik brand products with THFU 2 directly through our website or call us at +44 (0) 3303 800 157 or email our support team at sales@enrgtech.co.uk.

Yes. Our products in Heatsink Mounting Accessories category are shipped in lowest possible time.

You will get a confirmation email regarding your order of Fischer Elektronik Heatsink Retaining Spring for use with LAM Heatsink, SK Heatsink, TO-218, TO-220, TO-247, TO-248, TO-3P. You can also check on our website or by contacting our customer support team for further order details on Fischer Elektronik Heatsink Retaining Spring for use with LAM Heatsink, SK Heatsink, TO-218, TO-220, TO-247, TO-248, TO-3P.