SOCKETS FOR PLASTIC LEADED
CHIP CARRIERS (PLCC)
SMT TERMINATIONS
Series 540 PLCC sockets with SMT terminations come with square sizes for IC-packages according to JEDEC MO-047 and rectangular size (32) according
to JEDEC MO-052, low profile.
TECHNICAL SPECIFICATIONS (FOR GENERAL SPECS, SEE PAGE 155)
INSULATOR Glass filled thermoplastic PPS-GF30-FR
FLAMMABILITY UL 94V-O
CONTACT Phosphor bronze
CONTACT PRESSURE Min. 1.5 N per contact
MECHANICAL LIFE Min. 50 cycles
RATED CURRENT 1 A
CONTACT RESISTANCE Max. 20 m
DIELECTRIC STRENGTH Min. 600 VRMS
INSULATION RESISTANCE Min. 5’000 M
CAPACITANCE Max. 2 pF
COPLANARITY
SMD TERMINATIONS Max. 0.1 mm
ORDERING INFORMATION ROHS COMPLIANT PARTS
PP PLATING CODE TERMINATION CONTACT
88 Tin Tin
PCB LAYOUT SERIES 540, SMD TYPES
172
Option: parts with positioning pegs add suffix -2 to part number (only
available for No. of poles 32 and 68).
Tape & Reel packaging:
add suffix -TR to part number (except for 540-88-084-17-400).
Please consult www.precidip.com for availability size of tape, size of
reel, number of components per reel and packing units.
WWW.PRECIDIP.COM TEL +41 32 421 04 00 SALES@PRECIDIP.COM
NO. OF POLES A1/A2 B1/B2 C1/C2 D E ORDER CODES
20 14.86 7.02 9.20 4.60 16.20 540-88-020-17-400
28 17.34 9.50 11.76 4.60 19.70 540-88-028-17-400
16.95 / 9.40 / 11.60 /
32*
19.50 11.90 14.20
3.80
22.00
540-88-032-17-400
44 22.42 14.50 16.70 4.60 27.00 540-88-044-17-400
52 25.40 17.24 19.46 4.60 30.80 540-88-052-17-400
68 30.54 22.26 24.40 4.60 37.65 540-88-068-17-400
84 35.56 27.34 29.58 * RECTANGULAR 4.60 45.10 540-88-084-17-400
Due to technical progress, all information provided is subject to change without prior notice.