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644 Series Direct Entry SOJ Socket
Preloaded high normal force contacts
Staggered contact tails provide .100” x .100” pin out spacing
Allows probing of contacts with device in place
Live bug or dead bug insertion
Center “sword” slot and index hole allow automatic loading and unloading of the device
| Lead | Pitch | Socket Dimensions (mm) | MFR. | |||
| Count | e (mm) | Part Number | Length (A) | Width (B) | Height (C) | |
| 20 | .050 (1.27) | 644-1200312-001 | .775 (19.69) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 20 | .050 (1.27) | 644-1200312-002 | .750 (19.05) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 20 | .050 (1.27) | 644-1200312-003 | .795 (20.19) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 24 | .050 (1.27) | 644-1240312 | .700 (17.78) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 26 | .050 (1.27) | 644-1260312-001 | .775 (19.69) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 26 | .050 (1.27) | 644-1260312-002 | .750 (19.05) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 26 | .050 (1.27) | 644-1260312-003 | .795 (20.19) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 28 | .050 (1.27) | 644-1280312 | .800 (20.32) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 28 | .050 (1.27) | 644-2280312 | .800 (20.32) | .674 (20.32) | .551 (14.00) | WELLS-CTI |
| 32 | .050 (1.27) | 644-1320312 | .950 (24.13) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 32 | .050 (1.27) | 644-2320312 | .950 (24.13) | .674 (20.32) | .551 (14.00) | WELLS-CTI |
| 36 | .050 (1.27) | 644-2360312 | 1.050 (26.67) | .674 (20.32) | .551 (14.00) | WELLS-CTI |
| 40 | .050 (1.27) | 644-2400312 | 1.150 (29.21) | .674 (20.32) | .551 (14.00) | WELLS-CTI |
| 42 | .050 (1.27) | 644-2420312-014 | 1.200 (30.48) | .702 (17.83) | .551 (14.00) | WELLS-CTI |
| 44 | .050 (1.27) | 644-2440312-014 | 1.250 (31.75) | .702 (17.83) | .551 (14.00) | WELLS-CTI |
657 Series ZIP Socket
Dual face-wipe contacts for long, dependable life
Wide target area for easy entry and removal of device
Designed for fully automatic load and unloading of devices
Sockets manufactured for high humidity tests
| Lead | Pitch | Socket Dimensions (mm) | MFR. | ||
| Count | e(mm) | Part Number | Length (A) | Width (B) | |
| 16 | .050 (1.27) | 657-0160311 | .890 (22.61) | .300 (7.62) | WELLS-CTI |
| 20 | .050 (1.27) | 657-0200311 | 1.090 (27.69) | .300 (7.62) | WELLS-CTI |
| 24 | .050 (1.27) | 657-0240311 | 1.290 (32.77) | .300 (7.62) | WELLS-CTI |
| 28 | .050 (1.27) | 657-0280311 | 1.490 (37.85) | .300 (7.62) | WELLS-CTI |
| 32 | .050 (1.27) | 657-0320311 | 1.790 (45.47) | .300 (7.62) | WELLS-CTI |
| 40 | .050 (1.27) | 657-0400311 | 2.090 (53.09) | .300 (7.62) | WELLS-CTI |
672 Series Direct Entry Dual Beam SOJ Socket
Preloaded high normal force contacts
Staggered contact tails provide .100” x .100” pin out spacing
Allows probing of contacts with device in place
Live bug insertion
Center “sword” slot and index hole allow automatic loading and unloading of the device
Dual beam contact provids two points of wipe on each device lead
Contact overstress protection
| Lead | Pitch | Package Dimensions (mm) | Socket Dimensions (mm) | MFR. | |||||
| Count | e(mm) | Width (E1) | Lead Tip to Tip (E) | Length (D) | Part Number | Length (A) | Width (B) | Height (C) | |
| 20 | .050 (1.27) | .300 (7.62) | .339 (8.61) | .676 (17.17) | 672-1200311-001 | .775 (19.69) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 20 | .050 (1.27) | .300 (7.62) | .339 (8.61) | .676 (17.17) | 672-1200311-002 | .750 (19.05) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 20 | .050 (1.27) | .300 (7.62) | .339 (8.61) | .676 (17.17) | 672-1200311-003 | .795 (20.19) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 24 | .050 (1.27) | .300 (7.62) | .339 (8.61) | .626 (15.90) | 672-1240311 | .700 (17.78) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 24 | .050 (1.27) | .300 (7.62) | .339 (8.61) | .676 (17.17) | 672-1260311-008 | .750 (19.05) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 26 | .050 (1.27) | .300 (7.62) | .339 (8.61) | .676 (17.17) | 672-1260311-001 | .775 (19.69) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 26 | .050 (1.27) | .300 (7.62) | .339 (8.61) | .676 (17.17) | 672-1260311-002 | .750 (19.05) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 26 | .050 (1.27) | .300 (7.62) | .339 (8.61) | .676 (17.17) | 672-1260311-003 | .795 (20.19) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 28 | .050 (1.27) | .300 (7.62) | .339 (8.61) | .726 (18.44) | 672-1280311 | .800 (20.32) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 28 | .050 (1.27) | .400 (10.16) | .439 (11.15) | .726 (18.44) | 672-2280311 | .800 (20.32) | .674 (17.12) | .551 (14.00) | WELLS-CTI |
| 32 | .050 (1.27) | .300 (7.62) | .339 (8.61) | .826 (20.98) | 672-1320311 | .945 (24.00) | .574 (14.58) | .551 (14.00) | WELLS-CTI |
| 32 | .050 (1.27) | .400 (10.16) | .439 (11.15) | .826 (20.98) | 672-2320311 | .950 (34.13) | .674 (17.12) | .551 (14.00) | WELLS-CTI |
| 36 | .050 (1.27) | .400 (10.16) | .439 (11.15) | .926 (23.52) | 672-2360311 | 1.050 (26.67) | .674 (17.12) | .551 (14.00) | WELLS-CTI |
| 40 | .050 (1.27) | .400 (10.16) | .439 (11.15) | 1.026 (26.06) | 672-2400311 | 1.150 (29.21) | .674 (17.12) | .551 (14.00) | WELLS-CTI |
| 42 | .050 (1.27) | .400 (10.16) | .439 (11.15) | 1.069 (27.15) | 672-2420311-004 | 1.200 (30.48) | .702 (17.83) | .551 (14.00) | WELLS-CTI |
| 44 | .050 (1.27) | .400 (10.16) | .439 (11.15) | 1.123 (28.52) | 672-2440311-004 | 1.250 (31.75) | .702 (17.83) | .551 (14.00) | WELLS-CTI |