1. S series connector brief introduction:

The original standard self-latching connectors with stepped inserts for alignment (of multipole version). Making it an ideal choice for Medical, Test & Measurement, Research, Communications, Broadcast Connector, Machines, Defense, Robotic, Aerospace, public sector, Information Systems, Motorsport, Miscellaneous applications. The modular insert configurations include a wide range of high-density multi-pole contacts.

These high quality Spring connectors are CE certificated, ISO9001(2015) and cable assembly can be provided. it can cross Lemo variations and sizes.

2. S series connector description:

  • security of the Push-Pull self-latching system
  • multipole types 2 to 6 contacts
  • solder contacts
  • high packing density for space savings
  • polarisation by stepped insert (half-moon) fitted with male and female contacts
  • 360°screening for full EMC shielding.

3. S series connector technical specification:

Pulling and inserting times >5000.
Humidity Maximum humidity up to 95% at a temperature of 60°
Temperature -45°~+125°
Vibration 10~20000HZ,15g
Mechanical shock 100g·6ms
Salt spray corrosion test >48h
Protection level IP50
Connector type Plug, Male Pins; Socket, Female Pins
Number of positions 2-6 pin
Termination Solder
Fastening type Push-pull
Shell material Brass
Shell finish Chrome
Shell color Silver
Contact material Brass
Contact finish-mating Gold
Contact color Gold
Insert material polyphenylene sulfite ( PPS)
Cable opening 1.1mm~8.5mm

4. Cross reference

SPRING P/N LEMO P/N Definition
TFA Straight plug FFA Straight plug Shell Size 0S~1S, 2~6 Pin Contacts, outer shell in chrome-plated brass, PPS insulator, male solder contacts, for 1.1~8.5mm diameter cable, cable collet.
TFA Straight plug (with bend relief) FFA Straight plug (with bend relief) Shell Size 0S~1S, 2~6 Pin Contacts, outer shell in chrome-plated brass, PPS insulator, male solder contacts, for 1.1~8.5mm diameter cable, cable collet and nut for fitting a bend relief.
ZRA Fixed socket ERA Fixed socket Shell Size 0S~1S, 2~6 Pin Contacts, outer shell in chrome-plated brass, PPS insulator, female solder contacts, nut fixing, front panel mounting. M7, M9, M12, M15 connector.
ZRD Fixed socket (with two nuts) ERD Fixed socket (with two nuts) Shell Size 0S~1S, 2~6 Pin Contacts, outer shell in chrome-plated brass, PPS insulator, female solder contacts, back panel mounting. M9, M12, M15 connector.
DCA Free socket(with bend relief) PCA Free socket(with bend relief) Shell Size 0S~1S, 2~6 Pin Contacts, outer shell in chrome-plated brass, PPS insulator, female solder contacts, for 1.3~8.5mm diameter cable, cable collet and nut for fitting a bend relief.

Number of contacts and Insert configuration

Insert-configuration(S-series)

Cable Diameter

cable diameter
Series Cable Size(φA)
0S Series 1.3~6.7mm
1S Series 1.3~8.5mm

5. Chooseing tips:

If you have purchased Lemo connector and know the original model, please tell us. We will directly offer you our corresponding one.
If you don’t know much about the connector, please make choose according the following factors:

  1. the use of the environment, indoors or outdoors, waterproof or not;
  2. the panel hole size, to select the appropriate plug and socket of right dimension;
  3. the current-voltage, number of contact and the realization of the function, to determine the contact(cores) ;
  4. select the appropriate clamp diameter and sheath;
  5. according to the actual needs of different angles of the keys, to determine the keying (the standard keys as G).
Click to Selection Guide

6, Why choose our

  1. Lower your cost, cheap cable assembly offer, at least save your 30%-50% cost (100% compatible and work well)
  2. large stock, short lead times. The delivery time is short, the parts are in stock. Just need to assemble them.
  3. better quality at a reasonable price
  4. We can provide OEM/ODM service and cable assembly solution.
  5. Our factory has 9 years experience and strong and professional research and development capabilities.Advanced development and management, comprehensive R&D testing and highly automatic production line make our products high reliability and high performance.

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