Two new series of connector backshells offer a wide range of sizes and plating finishes

Weald Electronics offers two new series of connector backshells for rugged applications. Both series are manufactured in accordance with AS85049/M85049 specifications, which are considered to be the industry standard for connector accessories.

The company's LMA 69H1 backshells provide secure strain relief to cables via an adjustable cable clamp. They are compatible with MIL-DTL-38999 Series III (Souriau 8D Series) connectors with rear accessory threads and can be specified with the same plating finishes. The backshells' metalwork is machined from solid material rather than cast, providing optimum strength and in-service reliability.

While the connector interface includes an O-ring seal, this series of backshells does not provide extra environmental protection to the connector and cable and is designed to be employed without heat shrink boots over the connector-to-cable transition. For EMC screen termination variants, the LMA19 Series is available, and for ultra-low-profile style, consider the LMA67 Series. For heat shrink boot backshells, select the LMA79 Series.

Key Features include:

• Compatible with MIL-DTL-38999 / D38999 Series III and IV (H interface) circular connectors
• Provide secure strain-relief and cable support to prevent cable or connector damage due to bending or overloading at the rear of the connector.
• Straight variants are available; please consult the factory regarding 90-degree versions.
• Machined aluminium metalwork for high strength and reliability
• A wide range of sizes and plating finishes available from stock

LMA 79 Series backshells allow the secure mounting of heatshrink boots over the connector-to-cable transition. They are compatible with MIL-DTL-38999 Series III (Souriau 8D Series) and IV or MIL-DTL-26482 Series I (Weald LMH Series) connectors and can be supplied with a variety of finishes and variants to match the connector they are being used on.

The connector interface includes an O-ring seal around the connector interface, while using a suitable lipped heatshrink boot locked in place via a groove, which provides further mechanical and environmental protection for the cable. The complete assembly with boot decreases the risk of damage due to bending and pulling of the cable and provides sealing against water and dirt ingress.

The two-part spin-coupling design allows uncoupling for repair without removing the heatshrink boot. This series of backshells does not provide an option to terminate a cable screen for the connector. For EMC screen termination style, please see LMA19 Series; for an alternative ultra-low-profile style backshells, please see LMA67 Series.

Key features include:

• Compatible with MIL-DTL-38999 / D38999 Series III and IV (H interface) or MIL-DTL-26482 Series I / LMH (D interface) circular connectors
• It helps protect and maintain the effectiveness of the cable, sealing it against water and dirt ingress.
• It provides secure strain relief and cable support to prevent cable or connector damage due to bending or overloading of the cable at the rear of the connector.
• Straight variants are available; please consult the factory regarding 90-degree versions.
• Made of aluminium, stainless steel or nickel aluminium bronze
• Many sizes and plating finishes available from stock