D38999/20FH21AB vs KJB7T19F32PNL
| Part Number |
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| Category | Circular Connectors - Housings | Circular Connectors - Housings |
| Manufacturer | TE Connectivity Deutsch Connectors | ITT Cannon, LLC |
| Description | CONN RCPT HSNG MALE 21POS PNL MT | CONN RCPT HSNG MALE 32POS PNL MT |
| Package | - | - |
| Series | Military, MIL-DTL-38999 Series III, DTS | MIL-DTL-38999 Series III, KJB |
| Type | For Male Pins | For Male Pins |
| Mounting Type | Panel Mount | Panel Mount |
| Ingress Protection | Environment Resistant | Environment Resistant |
| Orientation | B | N (Normal) |
| Number of Positions | 21 | 32 |
| Mounting Feature | Flange | Bulkhead - Front Side Nut |
| Connector Type | Receptacle Housing | Receptacle Housing |
| Shielding | Shielded | Unshielded |
| Contact Type | Crimp | Crimp |
| Shell Size - Insert | 23-21 | 19-32 |
| Fastening Type | Threaded | Threaded |
| Shell Size, MIL | H | - |
| Contact Size | 16 | 20 |
| Shell Material | Aluminum Alloy | Aluminum Alloy |
| Housing Color | Silver | Silver |
| Shell Finish | Electroless Nickel | Electroless Nickel |
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1. 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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2. 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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3. Can the circular connector housing be customized?
Yes, many manufacturers offer customized shell services, including customized materials, colors, sizes, and specific environmental adaptability requirements to meet specific application needs.
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4. Which applications require high shielding performance enclosures?
High shielding performance enclosures are mainly used for applications that prevent electromagnetic interference, such as communication equipment, radar systems, industrial control systems, and medical equipment.

