The J599 MT series fiber optic connectors feature a three-thread quick-connect design with an anti-loosening mechanism. They include a five-key positioning system with blind-mate and anti-misinsertion functionality, as well as vibration resistance. The connectors are constructed from 316L stainless steel or aluminum alloy, offering low insertion loss and high reliability. The fiber optic components are removable, facilitating on-site installation. The product uses standard 12-core or 24-core MT fiber optic contact components, offering reliable performance, simple operation, and high integration. The product supports high-density optical signal transmission with configurations of 12 channels, 24 channels, 48 channels, 96 channels, and more.
Table1 J599 MT Main Parameters
| Insertion loss | ≤0.6 dB |
| Return loss | ≥20 dB (multi-mode PC) ≥40 dB (single-mode PC) ≥60 dB (single-mode APC) |
| Operating temperature | -40°C ~ +80°C |
| Vibration | 10 Hz to 2000 Hz, power spectral density 0.06 g²/Hz |
| Shock | 490 m/s² duration 11 ms |
| Mechanical life | 500 times |
| Salt spray test | 500 hours (Class K, stainless steel passivated) 500 hours (Class W, aluminum alloy cadmium-plated) 48 hours (Class F, aluminum alloy nickel-plated) |
Table 2 Dimensions Of The External Structure(See more at Figure 1)
| Shell number | Shell code | A max | Thread | L max |
| 09 | A | 21.80 | M12x1-6g | 32 |
| 11 | B | 25.00 | M15x1-6g | 32 |
| 13 | C | 29.40 | M18x1-6g | 32 |
| 21 | G | 41.70 | M31x1-6g | 32 |
Main Features
Compliant with GJB599A (MIL-DTL-38999) Series III interface
The connector uses a five-key circumferential identification and positioning mechanism to enable blind insertion and prevent incorrect insertion
Features a three-thread quick-connect design with an anti-loosening mechanism
Standard 12-core or 24-core MT fiber optic contact components are used, offering reliable performance, simple operation, and high integration. The product supports high-density optical signal transmission with 12, 24,
48, or 96 channels.
Three-stage guide limiting: housing > guide pin > MT guide needle
MT contact components can be ground using either PC or APC methods
Applications
Electronic radar
Supercomputers
Communication core network
Electricity
Table 3
| Shell Number | Shell Code | Connection Arrangement And Connection Code | |
| 9 | A | Connection Code | 12 | Connection Code | 24 | |
| Specification | 1-Mt12 | Specification | 1-Mt24 | |
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| |
| 11 | B | Connection Code | 12 | Connection Code | 24 | |
| Specification | 1-MT12 | Specification | 1-MT24 | |
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| |
| 13 | C | Connection Code | 12 | Connection Code | 24 | |
| Specification | 1-MT12 | Specification | 1-MT24 | |
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| |
| Connection Code | 2-12 | Connection Code | 2-24 | |
| Specification | 2-MT12 | Specification | 2-MT24 | |
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| |
| 21 | G | Connection Code | 48 | Connection Code | 96 | |
| Specification | 4-MT12 | Specification | 4-MT12 | |
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Figure 1
