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Pogo pin - Wikipedia, the free encyclopedia
Pogo pins were used to connect the module layers in the Cray-2. A Pogo pin is a device used in electronics to establish a (usually temporary) ...
en.wikipedia.org

Emulation Technology - Ultra-Mini Pogo Pin
Standard catalog pogo pin available from stock. Customs available upon request ... Ask about our new, high-performance, pogo pin based board-to-board interconnect ...
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POGO PIN Connector Manufacturers & Suppliers
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Spring Probe-Pogo Pin
Spring Probes or also known as "pogo pins" are used for the In-circuit and ... Unlike traditional pin and solder combinations, the conductive polymer offers ...
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A pogo pin is a device used in electronics to establish a (usually temporary) connection between two printed circuit boards. Named by analogy with the pogo stick toy, the pogo pin usually takes the form of a slender cylinder containing two sharp, Spring (device) pins. Pressed between two electronic circuits, the sharp points at each end of the pogo pin make secure contacts with the two circuits and thereby connect them together.

Pogo pins are usually arranged in a dense array, connecting together many individual nodes of the two circuit boards. They are very commonly found in automatic test equipment in the form of a bed of nails, where they facilitate the rapid, reliable connection of the Device under test (DUTs). In one extremely high-density configuration, the array takes the form of a ring containing hundreds or thousands of individual pogo pins; this device is sometimes referred to as a pogo tower.

They can also be used to establish more permanent connections, for example, in the Cray 2 computer.

When used in the highest-performance applications, pogo pins must be very carefully designed to allow not only high reliability across many mating/unmating cycles but also high-fidelity transmission of the electrical Signal (electrical engineering). The pins themselves must be hard, yet Electroplating with a substance (such as gold) that provides for reliable contact. Within the body of the pogo pin, the pins must make good electrical contact with the body lest the spring carry the signal (along with the undesireable inductance that the spring represents). The design of pogo pins to be used in Electrical impedance circuits is especially challenging; to maintain the correct characteristic impedance, pogo pins are sometimes arranged with one signal-carrying pin surrounded by four, five, or six Ground (electricity) pins.

See also

• Jumper (computing), performs similar function but bridges a circuit between two pins