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Be prepared for product discontinuation with KEC’s no-obsolescence guarantee

When products are discontinued, the impact on high-reliability markets can be significant. It causes supply chain issues for many defence and harness manufacturers. The market sees increases in unit costs, which often compound over subsequent months.

The partnership between backshell manufacturer KEC and distributor Princeps is there to support and avoid product obsolescence.

Discuss reducing product obsolescence with Princeps

Example benefits of no-obsolescence guarantees

Polamco 91 alternative KEC KC2500 EMC backshell with 360° shielding

Direct replacements for products from other manufacturers

A focus on UK manufactured components

KEC KC2500 UK‑made backshell replacing the Polamco 91 series

Products available from stock

Avoid redesign resource & cost

Comparison of Polamco 91 alternative options from KEC and Princeps

Control over supply chain

icon symobilising a reduction in project delays

Reduce project delays

Contact Princeps for further information

How KEC simplifies product transition

The KEC KC2500 backshell series is an example of commitment to component availability. It was engineered to meet a range of industry-standard products, with compatibility integral to the design, full traceability and a no-obsolescence guarantee.

It supports constant force spring, band strap or no termination device (NS suffix option), giving your purchasing team assurance when specifying a permanent replacement. We frequently help customers cross-reference components from major manufacturers such as Glenair, Amphenol and TE/Polamco and offer a complete part number matching service.

The KEC KC2500 is a proven, long-term replacement for products that include the Polamco 91 Series. The KEC KC2500 product is available for immediate distribution through Princeps. The KEC KC2500 gives you a permanent replacement to the Polamco 91.

How KEC simplifies product transition

As a UK stockist, Princeps is holding immediate inventory of key KEC solutions, including the KEC KC2500. This partnership ensures you not only secure future availability, but also immediate access, avoiding frustrating lead and delivery times.

For a replacement to the Polamco 91, or any other key obsolete or discontinued parts contact our team for help with our part number conversion service and protect your company’s long-term supply chain stability.

KEC KC2500 Questions

What is the KEC KC2500 EMC Backshell?

The KC2500 is an EMC backshell for circular connectors produced by KEC. Compatible with most circular connector series, the KC2500 backshells provide exceptional 360° EMC performance and environmental protection, similar to the Polamco 91 series.

Available in a variety of materials, including aluminium, aluminium-bronze, and stainless steel, with various platings (finishes), the KC2500 meets a range of requirements, is constructed to resist mechanical stress and vibration, and delivers 360° EMC shielding. It is designed to meet MIL-SPEC standards and is compatible with a wide range of circular connector types including MIL-C-38999 Series III & IV, MIL-C-26482 Series I & II and MIL-C-5015.

This backshell is available in straight, 45 degree and 90 degree configurations. Customers can continue to use the screen termination method of their choice, and environmental sealing of the cable system can be achieved by the addition of a heat shrink boot.

Customers find the KEC KC2500 EMC backshell provides exceptional 360° EMC performance and environmental protection. It is quick and easy to install and backed by UK-based manufacturing to deliver exceptional quality and full traceability with a no-obsolescence guarantee. The KEC KC2500 is often used to replace the Polamco 91.

Are the Polamco 91 and KEC KC2500 similar products?

Whilst the Polamco 91 EMC Backshell and KEC KC2500 are not exactly the same product, they are designed to serve the same purpose and are compatible. The KEC KC2500 is specified by KEC as the direct alternative to the Polamco 91 Series.

Both are EMC backshells for circular connectors designed to terminate shields and deliver 360° EMC performance and environmental protection, but they are made by different manufacturers with slightly different designs. The KEC product is manufactured in the UK, so has shorter lead times, comes with full traceability and is available from stock at Princeps.

Is there a Polamco 91 alternative?

The KEC KC2500 is a direct alternative to the Polamco 91 series and other EMC circular backshells including Weald LMA 19, Amphenol BK4 and BL1, Glenair 440, TE/Polamco/Raychem BT and TXR, and the EMCA A3 Series.

KEC KC2500

  • Function: Replaces the Polamco 91
  • Key features: Designed to meet MIL STD specifications, providing exceptional 360° EMC performance and environmental protection
  • Connector compatibility: Works with most circular connector types including MIL-C-38999 Series III & IV, MIL-C-26482 Series I & II and MIL-C-5015
  • Full traceability and no-obsolescence: guaranteed

The KEC 2500 is regarded as the most suitable replacement to the Polamco 91.

Depending on the part number, other alternative KEC backshells are available with even higher levels of EMC performance including TEMPEST, environmental sealing protection up to IP68, and cable clamp options from distributors such as Princeps.

We also offer a full design and build service. KEC can modify all of their standard backshells to meet individual requirements, and KEC’s experienced design team can work with you to offer a custom backshell to meet your specific requirements.