3O Connectors Overview

The BIRNS Millennium 3O is a powerful, extremely popular midsize connector. It is available with 7 to 46 contacts, and with 1 to 4 optical fibers, so it can be tailored to perform seamlessly in a wide range of extreme applications.

Ethernet: The 3O-17 configuration with our exclusive cable for Cat 8.2 use provides data transfer rates of up to 9.4+/- 0.1 Gigabits per second at 6km.

BIRNS has open-face tested the 3O-13 for 10 cycles per NAVMAT P-9290 to 10,000 PSI (6.8 Km), with no degradation in any properties. Fiber optic configurations for the Millennium 3O may have different overall dimensions than standard BIRNS Millennium electrical connectors. Contact the BIRNS sales team (service@birns.com) for detailed technical information.

Extreme cold, extreme depth capabilities

We offer a new precision testing capability—an extreme low temperature, extreme depth testing system. The test system successfully allows 48 hour+ continuous testing of connectors and cable assemblies at 6km in a controlled 2°C (±1°C) environment.

It was initially developed to meet customer requirements for the 3O-1F3 configuration, which features the company’s new miniature 1.25mm optical ferrule.

3O Connector Images

Pin Configuration for: 3O-46

Shell-Insert Pin Configuration & Wiring Worksheet:

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3O Product Information:
Support Materials

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