M Series Connectors
Are lightweight triplestart ratchet coupling type connectors designed for avionics, aerospace, Harsh Environment Connectors, security, motorsport and heavy duty applications.
Previously known as MIL-C-38999, MIL-DTL-38999 connectors come in four series: Series I, Series II, Series III and Series IV. They are environmentally resistant connectors that use removable crimp contacts and have an operating range of -65 to +200°C.
Series I connectors are bayonet coupled and have high-vibration properties. They are scoop proof and are ideal for heavy wind and moisture environments. They are utilised when a fast disconnect coupling system is required.
Series II connectors are bayonet coupled, are non-scoop proof, and have a low profile, so are used when weight or space is limited, or in low-vibration, high moisture, and strong wind situations.
Series III connectors are coupled by a quick screw Tri start thread, are scoop proof, and are best suited for normal mating and unmating applications and can be used in high temperature, moisture, wind, or vibration environments when used with the correct accessories. Series III connectors are most commonly use in Aerospace designs.
| Shell | A | B (max) | C (max) | D (max) | E (max) | F | G Thread | d | p |
|---|---|---|---|---|---|---|---|---|---|
| 9 | 16.5 | 9.9 | 3.2 | 30.5 | 24 | 27 | M12*1-6g | 17.7 | 16.99 |
| 11 | 19.3 | 9.9 | 3.2 | 35.2 | 27 | 31.8 | M15*1-6g | 20.88 | 19.53 |
| 13 | 24 | 9.9 | 3.2 | 38.4 | 32 | 34.9 | M18*1-6g | 25.58 | 24.26 |
| 15 | 27.2 | 9.9 | 3.2 | 41.6 | 36 | 38.1 | M22*1-6g | 28.8 | 27.53 |
| 17 | 30.4 | 9.9 | 3.2 | 44.8 | 37 | 41.3 | M25*1-6g | 31.98 | 30.68 |
| 19 | 33.4 | 9.9 | 3.2 | 49.3 | 41 | 46 | M28*1-6g | 35.15 | 33.86 |
| 21 | 36.5 | 9.9 | 3.2 | 52.7 | 46 | 49.2 | M31*1-6g | 38.28 | 37.06 |
| 23 | 39.7 | 9.9 | 3.2 | 55.9 | 50 | 52.4 | M34*1-6g | 41.5 | 40.24 |
| 25 | 42.8 | 9.9 | 3.2 | 59 | 51.23 | 55.6 | M37*1-6g | 44.68 | 43.41 |
The 38999 specification defines families of shells that intermate to protect from vibration, shock, and moisture. MIL-DTL-38999 connectors attach cables to electronics boxes in various applications, including vehicles, ships, planes, and handheld equipment. They are also available for many non-Harsh Environment Connectors robust applications, such as the transportation and robust equipment markets.
| MPN | d38999/24wc35sn |
||
|---|---|---|---|
| Key | N |
||
| MPN | d38999/24wc35sn |
Key | N |
| Series | MIL-DTL-38999 Series Ⅲ |
||
|---|---|---|---|
| Connector Type | |||
| Orientation | |||
| Number of Positions | 22 |
||
| Shell Size | |||
| Fastening Type | |||
| Shell Material | Aluminum Alloy |
||
| Shell Finish | Cadmium olive drab |
||
| Insulation Material | PPS |
||
| Shielding | Shield |
||
| Series | MIL-DTL-38999 Series Ⅲ |
Connector Type | |
| Orientation | Number of Positions | 22 |
|
| Shell Size | Fastening Type | ||
| Shell Material | Aluminum Alloy |
Shell Finish | Cadmium olive drab |
| Insulation Material | PPS |
Shielding | Shield |
| Contact Type | |||
|---|---|---|---|
| Contact Termination | Crimp |
||
| Contact Material | Copper Alloy |
||
| Contact Finish | Gold |
||
| Contact Type | Contact Termination | Crimp |
|
| Contact Material | Copper Alloy |
Contact Finish | Gold |
| Contact Layout | 13-35 |
||
|---|---|---|---|
| Mount Type | Cable |
||
| Shell Color | Olive Drab |
||
| Protection Rating | IP67 |
||
| Contact Layout | 13-35 |
Mount Type | Cable |
| Shell Color | Olive Drab |
Protection Rating | IP67 |
| Rated Current | 5A |
|---|---|
| Rated Current | 5A |
| Operating Temperature | -65℃ to +175℃ |
|---|---|
| Operating Temperature | -65℃ to +175℃ |
| MPN | d38999/24wc35sn |
|---|---|
| Series | MIL-DTL-38999 Series Ⅲ |
| Connector Type | |
| Orientation | |
| Contact Type | |
| Number of Positions | 22 |
| Shell Size | |
| Contact Layout | 13-35 |
| Fastening Type | |
| Mount Type | Cable |
| Contact Termination | Crimp |
| Key | N |
| Shell Material | Aluminum Alloy |
| Shell Finish | Cadmium olive drab |
| Insulation Material | PPS |
| Contact Material | Copper Alloy |
| Contact Finish | Gold |
| Shell Color | Olive Drab |
| Protection Rating | IP67 |
| Shielding | Shield |
| Rated Current | 5A |
| Operating Temperature | -65℃ to +175℃ |
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