The 053513-1956 is a Combo D series D-Subminiature connector featuring a 9C4 mixed contact arrangement, which includes five size 20 signal contacts and four size 8 contacts. It is designed for right-angle PCB mounting with a metal bracket, 4-40 fastener, and boardlocks. This connector operates over a wide temperature range of -55°C to +125°C, has a dielectric withstanding voltage of 500 VAC, and is rated for 50 mating cycles. Constructed with a tin-plated steel shell and gold-flashed copper alloy contacts, it is ideal for applications requiring a combination of signal and power in a single, durable housing.