login
BECOME A PEI INSIDER
Sign up to receive the most up-to-date information on our products & services.

LEMO B-Series Connector

LEMO B-Series Connector






SECURE PUSH-PULL HIGH-DENSITY CONNECTOR

PEI-Genesis offers LEMO’s B-Series connector: a secure, push-pull latching system with high-density panel spacing, 360 degree EMI shielding and quick mating or unmating. This series is designed for indoor or vacuum-tight applications, making it an ideal choice for test and measurement instrumentation, medical devices, research, audio/video and applications where a highly reliable, quick-mating connector is needed. Modular insert configurations include a wide range of high-density or hybrid electrical contacts, including solder, crimp, PCB straight or elbow, fibre, coax, thermocouple, pneumatic, fluidic or high voltage contacts. LEMO’s proprietary keying system allows for a higher contact density while preventing mismating. The LEMO B-Series includes the family size range of 0B to 5B, as well as the 00 multipole and 2G (shortened version of the 2B series). PEI-Genesis’ Value Add Services are available for the LEMO B-Series with rapid turnaround. Contact us today to discuss your next application.

LEMO




FEATURES

LEMO B-SERIES CONNECTOR FEATURES

  • Secure Push-Pull self-latching system

  • Solder, crimp or PCB straight or elbow contacts

  • Multiple key options to avoid mismating

  • 360 degree screening for full EMI shielding

  • Multipole types: 2 to 64 contacts and hybrid electrical plus fiber, coax, thermocouple, pneumatic, fluidic or high voltage contacts

  • High packing density for space savings on panel

MATERIALS & FINISHES

LEMO B-SERIES CONNECTOR MATERIALS & FINISHES
Shell
Brass, Stainless Steel, Aluminum alloy
Shell Plating
Chrome, Nickel, Black Chrome, Anodized, Nickel Antracite
Contacts
Brass or Bronze Beryllium with Stainless Steel Clips
Contact Platings
Gold over Nickel over Copper
Insulator
PEEK, PSU, PPSU, PA 6.6
O-ring and Gaskets
Silicone

ELECTRICAL DATA

LEMO B-SERIES CONNECTOR ELECTRICAL DATA

Test Voltage (Ue)

Test Voltage is dependant on contact and shell size, along with Insert Configuration.
See Insert Configuration Table.

It corresponds to 75% of the mean breakdown voltage.
Test voltage is applied at 500 V/s and the test duration is 1 minute.
This test has been carried out with a mated plug and socket, with power supply only on the plug end.


Operating Voltage (Us):

It is proposed according to the following ratio : Us = Ue/3

Voltage values are given in the table on insulator types for each series.

They correspond with values measured at sea level.
They are adapted to all applications up to an altitude of 2000m.

In case a device is used at a higher altitude, air clearance between live parts has to be multiplied by the following coefficients.
It means also that test voltage has to be divided by this coefficients.

Altitude (m)

Coefficient

2000

1.00

3000

1.14

4000

1.29

5000

1.48



Electrical Data - Current Rating

Current Rating is dependant on contact and shell size, along with Insert Configuration.
See Insert Configuration Table.

The specified rated current can be applied simultaneously to all the contacts. It corresponds with an average temperature rise of 40°C of the connector.

B-Series Current Rating Graph

MECHANICAL

LEMO B-SERIES CONNECTOR MECHANICAL
Wire Range Sizes
30-8AWG AWG (stranded) or 28-10 AWG (solid)
Mating Life
>5,000 cycle, per IEC 60512-5 test 9a
Salt Spray
>144 hours, per IEC 60512-6 test 11F
Operating Temperature
-55°C to +250°C (-67°F to 482°F)
Protection Index (mated)
IP50, per IEC 60529, IP68 vacuumtight
Humidity
Up to 95% at 60°C
Vibration
10-2000 Hz, 15g per, IEC 60512-4 test 6d
Shock
100g, 6ms, per IEC 60512-4 test 6c
Shielding Efficiency
at 10 MHz >75 dB, per IEC 60169-1-3
at 1 GHz >40 dB, per IEC 60169-1-3
Contact Type
Solder, Crimp, PCB (straight & right angle)
Number of Circuits
2 to 64 (See Insert Configuration Table)
Polarization
Integral Key(s) and Keyway(s)



Insert Material


Characteristics

PEEK

PSU

PPSU

Standard

Color

Natural (beige)

White or Grey

Cream

-

Temperature range

- 50° C/+250° C

- 50° C/+150° C

- 50° C/+180° C

-

Sterilization resistance*

>200 Cycles

~20 Cycles

>100 Cycles

IEC 60601-1 § 44.7

Resistance to solvents

Very good

Limited

Good

-

*Steam sterilization


Contact Resistance with Relation to the Number of Mating Cycles
Average values measured after the mating cycles and the salt spray test according to IEC 60512-6 test 11f.


Contact Resistance (m ohm symbol)

A ø (mm)

1000 Cycles

3000 Cycles

5000 Cycles

0.5

7.5

8.3

8.7

0.7

5.6

5.7

6.1

0.9

4.1

4.2

4.8

1.3

2.8

2.9

3.6

1.6

2.6

2.7

3.5

2.0

2.9

3.1

3.3

3.0

2.0

2.2

3.1

4.0

1.6

2.0

2.8

5.0

1.4

-

-

6.0

1.2

-

-

8.0

0.8

-

-

12.0

0.7

-

-




Insulation Resistance Between the Contacts and Contact/Shell


Multipole

Unipole

Insulating Material

PEEK

PTFE

New

> 1012 ohms

> 1012 ohms

After Humidity Test 1)

> 1010 ohms

> 1010 ohms


Note: 1) 21 days at 95% RH according to IEC 60068-2-3.


Contact Retention Force - Crimp Contacts
Solder contacts are pressed fit and will have higher retention force.

Contact Size

Retention Axial Load (Newtons)

0.5

12

0.7

22

0.9

30

1.3

40

1.6

50

2.0

65

3.0

75

4.0

90



 
oblivion