MS27467T25F61SLC vs D38999/20JJ11PA-LC
| Part Number |
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| Category | Circular Connectors - Housings | Circular Connectors - Housings |
| Manufacturer | Amphenol Aerospace Operations | Amphenol Aerospace Operations |
| Description | CONN PLG HSG FMALE 61POS INLINE | CONN RCPT HSNG MALE 11POS PNL MT |
| Package | - | - |
| Series | Military, MIL-DTL-38999 Series I, LJT | Military, MIL-DTL-38999 Series III, Tri-Start? TV |
| Type | For Female Sockets | For Male Pins |
| Features | Coupling Nut | - |
| Mounting Type | Free Hanging (In-Line) | Panel Mount |
| Ingress Protection | Environment Resistant | Environment Resistant |
| Orientation | N (Normal) | A |
| Number of Positions | 61 | 11 (2 + 9 Power) |
| Connector Type | Plug Housing | Receptacle Housing |
| Shielding | Shielded | Shielded |
| Contact Type | Crimp | Crimp |
| Shell Size - Insert | 25-61 | 25-11 |
| Fastening Type | Bayonet Lock | Threaded |
| Contact Size | 20 | 20 (2), 10 Power (9) |
| Shell Material | Aluminum Alloy | Composite |
| Housing Color | Silver | Olive Drab |
| Shell Finish | Electroless Nickel | Cadmium |
| Mounting Feature | - | Flange |
| Shell Size, MIL | - | J |
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1. What are the common materials for circular connector housings?
Common shell materials include metal (such as aluminum, stainless steel) and plastic. Metal casings typically have better shielding and corrosion resistance, while plastic casings are lightweight and suitable for applications that do not require shielding.
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2. What is the protection level of the circular connector housing?
The protection level is usually represented by an IP code, such as IP67. This level indicates the protective ability of the shell against solids (such as dust) and liquids (such as water). High IP rating is suitable for outdoor and harsh environments.
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3. How to ensure compatibility between the casing and internal connectors?
When selecting a casing, it is necessary to confirm its size, thread specifications, installation method, and compatibility with internal connectors to ensure that the casing can be fully adapted.
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4. How to maintain the circular connector housing?
Regularly inspect the surface of the casing for wear or corrosion, ensuring that the seals are intact and kept clean. If necessary, aging or damaged casings and seals should be replaced in a timely manner.

