Description
202K121-25/225-0 Molded Part, Heat-Shrinkable, Straight, 150 °C, Fit Size 9 Backshell — BOLTON SKU 53904.
About the 202K121-25/225-0 Backshell
The 202K121 range from TE Connectivity Raychem consists of moulded, heat-shrinkable parts used to seal and strain-relieve the transition between a connector backshell and the cable or harness behind it. This variant has a straight body form and is moulded in a black semi-rigid elastomer with an internal adhesive lining, so that on recovery the boot both grips the substrate and forms a moisture seal. Published data for the part gives an operating temperature range of -70 degrees C to +150 degrees C and a recovery temperature window of +135 degrees C to +200 degrees C, meaning it is installed with a controlled hot-air source rather than an open flame. The part designation identifies it as fitting a size 9 backshell, and the boot is installed after the harness has been terminated and tested.
Key specifications
| Manufacturer range | TE Connectivity Raychem 202K121 moulded parts |
|---|---|
| Type | Heat-shrinkable moulded transition boot |
| Body form | Straight |
| Material | Semi-rigid elastomer, black |
| Adhesive | Internally adhesive lined |
| Operating temperature | -70 degrees C to +150 degrees C |
| Recovery temperature | +135 degrees C to +200 degrees C |
| Backshell fit size | 9 (per part designation) |
Typical applications
Moulded heat-shrink boots are standard consumables in aerospace and defence harness manufacture, used to environmentally seal connector-to-cable transitions on airframe looms, UAV payload harnesses and vehicle wiring. They are equally common in MRO workshops during loom repair and re-termination. Selection is normally driven by backshell size, cable bundle diameter and the temperature class of the installation.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
Browse more in Backshells & Strain Relief.
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