38999 Series III-Type Fiber-Optic and Hybrid Connectors
Fiber + power + coax + data in one 38999 shell · ≤ 0.6 dB

Size 8 differential · 1.65 Gbps · marine grade
These 38999 Series III-type connectors carry high-speed differential networks with matched impedance. Size 8 differential contacts (2 or 4 conductors) reach 1.65 Gbps and can be mixed with power, RF and fiber contacts in one shell. Triple-start threaded coupling with anti-decoupling suits high-vibration environments, and construction is marine grade.
| Parameter | Value | Condition |
|---|---|---|
| Withstanding voltage, M / N | 1300 / 1000 Vrms | Sea level |
| Withstanding voltage, I / II | 1800 / 2300 Vrms | Sea level |
| Differential contact | 1.65 Gbps; 1 A; 500 VAC centre-to-outer; 1000 VAC between centres |
| Parameter | Value | Condition |
|---|---|---|
| Acid salt spray | 240 h (5 × 48 h), pH 3.5 ± 0.5 | GJB 150.11A |
| Acid atmosphere | 4 cycles, pH 3.5 ± 0.5 | GJB 150.28 |
| Mould | 84 days, grade 1 or better | GJB 150.10A |
GJB 599A Series III (type) — Mating interface.
Values not listed above — for example vibration level, leak rate or other environmental tests — can be tested to your requirements, including third-party testing. Specifications are subject to change; contact us for the current datasheet.
| Code | Shell material | Finish | Shell conductivity | EMI shielding | Temperature | Salt spray |
|---|---|---|---|---|---|---|
| W | Aluminum alloy | Olive-drab cadmium | 2.5 mΩ | 50 dB at 10 GHz | −65 to +175 °C | Marine grade |
| K | Stainless steel | Passivated | 10 mΩ | 45 dB at 10 GHz | −65 to +200 °C | Marine grade |
| M | Composite | Nickel | 1 mΩ | ≥ 65 dB at 10 GHz; ≥ 85 dB at 1 GHz | −65 to +200 °C | Marine grade |
| J | Composite | Olive-drab cadmium | 2.5 mΩ | ≥ 50 dB at 10 GHz | −65 to +175 °C | Marine grade |
| TA | Titanium alloy | None | 10 mΩ | ≥ 65 dB at 10 GHz | −65 to +200 °C | Marine grade |
Yes. Size 8 differential contacts sit in 38999 layouts with power, RF and fiber contacts; tell us the mix and we propose a layout.
Part number, drawing, pin-out or a short description of your application.
Our engineers match the configuration and reply with a drawing and quotation.
Samples are made to your order. Third-party testing to your specification is available on request.
You test the samples in your own equipment and approve them.
Production follows the approved sample configuration.
Send your part number, pin-out or drawing. An engineer will reply by email.
Fiber + power + coax + data in one 38999 shell · ≤ 0.6 dB
38999 Series III type · shell sizes 9–25 · 184 insert arrangements
6.25 Gbps · RF to 40 GHz · MT fiber · 3U and 6U