Aries Electronics 2.54mm Pitch Vertical 40 Way, Through Hole Closed Frame IC Dip Socket, 3A

These sockets have a low profile, with a unique ejector/latching action
They are ideal for use where frequent removal of an IC is anticipated or where vibration may make other types unsuitable. The removal action ensures that the IC pins are undamaged
High reliability is ensured by the collet type contacts, which will accept either round or rectangular pins
The contacts are gold plated over beryllium copper and have tin-plated brass solder tails
Temperature Range: -55°C to +105°C (Tin); -55°C to +125°C (Gold)
Insulation Resistance: 10000MΩ (at 500Vdc)