Product Summary

The MPGA478B is a surface mount, ZIF (Zero Insertion Force) socket intended for performance and value desktop platforms based on future Intel microprocessors. The MPGA478B provides I\O, power and ground contacts. The MPGA478B contacts with a cavity in the center of the socket. The socket has solder balls/surface mount features for surface mounting with the motherboard. The MPGA478B has 50mil pitch with regular pin array, to mate with a 478-pin processor package.

Parametrics

MPGA478B absolute maximum ratings: (1)Mated loop inductance, Lloop: <3.3nH; (2)Maximum mutual capacitance, C: ≤ 1.1 pF; (3)Final mated connection resistance for Kovar pin daisy chain Package Test Vehicle (average of minimum 40 pin/connector mated connections): ≤ 25 mΩ; (4)Final mated connection resistance for Cu alloy pin daisy chain Package Test Vehicle (average of minimum 40 pin/connector mated connections): ≤ 17 mΩ; (5)Socket minimum current rating @ 1.0A: Read and Record; (6)Pin-to-Pin/Connector-to-Connector insulation resistance (min): > 800 MΩ; (7)Measurement frequency for Pin-to-Pin/Connector-to-Connector capacitance: 400 MHz; (8)Measurement frequency(s) for Pin-to-Pin/Connector-to-Connector inductance: 1GHz.

Diagrams

MPGA478B pin configuration