1. Catalogs
  2. JC CHERRY INC.
  3. Direct Contact Socket

Direct Contact Socket

Direct Contact Socket

Direct Contact Socket

Product catalog summary
Overview: The document provides technical specifications and usage instructions for Direct Contact Sockets designed for QFP and SOP devices. These sockets enable high-speed transmission signal measurement by directly pressing the device lead against the board, minimizing signal deterioration.
Specifications:
  • Pitch: 0.4mm and above
  • Temperature Range: -40℃ to +150℃
  • Acceptable Device Types: QFP, SOP
  • Maximum Device Size: 40mm x 40mm
  • Note: There are limitations on the number of pins; contact the manufacturer for larger sizes.
Applications:
  • Mounting on PCB for mass production
  • Final testing and inspection in real environments (e.g., automotive, robotics)
  • IC failure analysis
Features:
  • Minimizes signal deterioration by reducing the number of contacts, ideal for high-speed IC device evaluation.
  • Available in Latch Lock, Screw Lock, and Rotary Lever types.
Performance:
  • Frequency Range: 10MHz-20GHz
  • Return Loss and Insertion Loss characteristics are provided for different pitches and pin arrangements.
Ordering Information:
  • Example: DCLC-QFP1414-100-P050
  • Pitch options: 0.4mm, 0.5mm, 0.65mm, 0.8mm, 1.0mm
Installation Instructions:
  1. Place the guide plate on the board and fix it with screws.
  2. Set the device along the guide ensuring the device lead is on the board pattern.
  3. Fix the lid using the latch lock mechanism.
  4. Tighten the M2 set screw to complete preparation for measurement.
Recommended tightening torque for M2 screws is specified.
Maintenance:
  • Regular cleaning of the PC Board pads is recommended to prevent contact instability.
  • Use a cotton swab dipped in alcohol (IPA) for cleaning.
Additional Options:
  • Reinforce plate for thin PC Boards
  • Torque Screwdriver for precise torque control
Contact Information: For custom designs and further details, contact the manufacturer via the provided websites.
See more

Catalog excerpts

Direct Contact Socket-1

www.connect.co.jp www.jccherry.com Latch Lock type Latch Lock and Screw Lock type Direct Contact Socket for QFP,SOP etc. Screw Lock type Rotary lever type The test socket that enables high-speed transmission signal measurement by adopting the contact method that directly presses the device lead against the board. Applications Mounting on PCB for mass-production Final test and inspection at real environment(ex. automobile, robotics, electrical devices for mobility)   IC failure analysis Specifications (Typical)  Pitch          :0.4mm ~ *  Temperature Range   :-40℃ ~ +150℃  Acceptable device type :QFP ,SOP  Acceptable device size :□40 mm max * Please contact us for bigger size. There have limited on the number of pins. Features:    Since the general IC socket has terminals (spring probe, plate vane, etc.) between the board and the device, the number of contacts are increases, and signal would occurs deterioration or attenuation, but this socket is in a state close to soldering. It's the ideal for evaluating high-speed IC devices because it suppresses the deterioration of the signal. High frequency characteristic (Simulation) Direct Contact Socket Return loss Insertion loss Device Hold Down 従来のソケット Traditional Test Socket Return loss Insertion loss

 Open the catalog to page 1
Direct Contact Socket-2

www.connect.co.jp www.jccherry.com Direct Contact Socket for QFP,SOP mm Latch Lock and Screw Lock type(Standard specifications) How to order DCLC - QFP 14 20 - 128 - P050 QFP SOP etc. Pitch P040:0.4mm B:20(mm) P050:0.5mm Number of Pins P065:0.65mm P080:0.8mm P100:1.0mm etc. A(Body Size) B(Body Size) Direct Contact Socket for QFP Feautures 〇This is a standard specification socket.  〇Short delivery times are possible. Important) The differences of dimensions A and B depending on the package manufacturer, so please send the device sample in advance. (*1)If the thickness of your PC Board is out of...

 Open the catalog to page 2
Direct Contact Socket-3

Device Guide Plate t PC Board(*4) M2 Screw (Attached) ①Place the guide plate on the board and  fix it with four screws from bottom.(*5) ②Set the device along the guide.  (After setting, make sure that the  device-lead is on the board pattern.) ③Fix the lid (latch lock mechanism) to the guide plate. (At this time, make sure the latch is securely locked to the guide plate.) (Recommended) M2 Screw Tightening Torque : 8.8cN・m The order to tighten the screws (1)→(2)→(3)→(4)→(5)→(6)→(7)→(8) →(1)→(2)→(3)→(4)→(5)→(6)→(7)→(8) ④By tightening the M2 set screw installed on the lid, preparation for measurement...

 Open the catalog to page 3
Direct Contact Socket-4

(*3) There is no restriction for height. Socket lineup for Device(For QFP) Important : •The differences of dimensions A and B depending on the package manufacturer, so please send the device sample in advance. •We accept IC device foot pattern and thickness other than on this. Should you have any questions or concerns regarding this matter, please feel free to contact us.

 Open the catalog to page 4
Direct Contact Socket-5

Direct Contact Socket for QFP, SOP Torque Screwdriver (Option) Rotary Slip Model Torque Screwdriver from TOHNICHI Mfg.Co.,Ltd. It would be rotary slip when reached the set torque value, it prevents damage to the socket and screws without further tightening. OHow to order Example) In case of using Latch Lock and Screw Lock type • RTD15CN (Torque driver body) Note) . A bit is required when using a torque driver. .Regular inspection is necessary for accurate torque control. Socket Type Reinforce plate (Option) To ensure the strength of the PC Board, and when the PC Board is thin, it might be more...

 Open the catalog to page 5

All JC CHERRY INC. catalogs and technical brochures

  1. DSMP-CR24

    1  Page

  2. D2RF-PLUG-L

    3  Pages

  3. SHVR15-T16P

    1  Page

  4. SHVR-T16P

    1  Page

  5. FSE1A-5P

    1  Page

  6. UJMSF Series

    1  Page

  7. UJMSW Series

    1  Page

  8. UJMST Series

    1  Page

  9. LD254-xP-

    1  Page

  10. ULK60S-ML65M6

    2  Pages

  11. HVL-x-2P-30

    2  Pages

  12. SCH-8P-xxxx

    1  Page

  13. MDSxxx-xxx-xx

    7  Pages

  14. MDSxxR-ST-x

    1  Page

  15. MDSxxP-ST-x

    1  Page

  16. MDSxxP-SC-x

    1  Page

  17. MDSxxR-SC-x

    1  Page

  18. RPSMAJ103-T

    1  Page

  19. Slit Pin

    3  Pages

  20. LD254P-xP-F8

    1  Page

  21. LD200-4P-xx

    1  Page

  22. LD200P-xP-F8

    1  Page

  23. LD143-xP-H85

    1  Page

  24. TT3P-L214

    1  Page

  25. UJRK60-2x

    1  Page

  26. HAYC-x-2P-15

    1  Page

  27. MPGAP Series

    2  Pages

  28. GU10 Series

    3  Pages

  29. PDSP series

    1  Page

  30. PDSP-

    1  Page

  31. PDSP

    1  Page

  32. T4P-L214-ST-

    1  Page

  33. LD143-4P-H85

    1  Page

  34. LD254-3P-

    1  Page

  35. LD200P-3P-F8

    1  Page

  36. PDHS254-

    2  Pages

  37. PDSA-

    2  Pages

  38. T

    4  Pages

  39. GD18 series

    4  Pages

  40. GU16 series

    2  Pages

Archived catalogs

  1. NSP126

    1  Page

  2. T3P

    1  Page

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.