THF 409 TO 220
Retaining Spring, Clip Mount, 4 mm Thick, Stainless Steel, 18 mm x 15.5 mm
| Manufacturer | FISCHER ELEKTRONIK |
|---|---|
| Manufacturer Part No | THF 409 TO 220Copy |
| Manufacturer Standard Lead Time | 15 weeks |
| Order Code | 1892351 |
| Your Part Number | |
| Technical Datasheet |
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| Quantity | Price (Incl GST) |
|---|---|
| 10+ | $0.344 ($0.3956) |
| 50+ | $0.301 ($0.3462) |
| 100+ | $0.249 ($0.2864) |
| 500+ | $0.244 ($0.2806) |
Product Information
| Manufacturer | FISCHER ELEKTRONIK |
|---|---|
| Manufacturer Part No | THF 409 TO 220Copy |
| Manufacturer Standard Lead Time | 15 weeks |
| Order Code | 1892351 |
| Technical Datasheet | |
| Fixing Type | Retaining Spring |
| For Use With | Transistor Design TO-220/TO-3P/TO-247/TO-248 |
| External Length | 15.5mm |
| External Width | 18mm |
| Product Range | - |
| SVHC | No SVHC (25-Jun-2025) |
Product Overview
The THF 409 TO 220 is a stainless steel retaining spring designed for securing power transistors in TO-220, TO-3P, TO-247, and TO-248 packages to heatsinks. It provides reliable mechanical fastening without the need for screws, making it ideal for quick assembly and maintenance in thermal management applications. This clip-style mount is compatible with Fischer’s SK 409 series extruded heatsinks and supports plate thicknesses ranging from 1.5 mm to 3 mm. With dimensions of approximately 18 mm in length, 13.3mm in height, and 3 mm in depth, it ensures firm contact between the transistor and heatsink surface, enhancing thermal conductivity.
- Type: Retaining spring for TO-220, TO-3P, TO-247, and TO-248 packages
- Material: Stainless steel
- Mounting Method: Clip-on (no screws required)
- Compatible Heatsinks: Designed for use with SK 409 series
- Supported Plate Thickness: 1.5 mm to 3 mm
- Dimensions (LxHxH): 18mm x 13.3mm x 3mm (Approx.)
Technical Specifications
| Fixing Type | Retaining Spring |
|---|---|
| External Length | 15.5mm |
| Product Range | - |
| For Use With | Transistor Design TO-220/TO-3P/TO-247/TO-248 |
|---|---|
| External Width | 18mm |
| SVHC | No SVHC (25-Jun-2025) |
Technical Docs (2)
Legislation and Environmental
| Country of Origin: Country in which last significant manufacturing process was carried outCountry of Origin: | Germany Country in which last significant manufacturing process was carried out |
|---|---|
| Tariff No: | 73201011 |
| US ECCN: | EAR99 |
| EU ECCN: | NLR |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | Yes RoHS |
| SVHC: | No SVHC (25-Jun-2025) |
| Download Product Compliance Certificate | Product Compliance Certificate |
| Weight (kg): | .090718 |