D38999/26MJ43JA-LC vs CA3100R32-7SBF80F0
| Part Number |
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| Category | Circular Connectors - Housings | Circular Connectors - Housings |
| Manufacturer | TE Connectivity Deutsch Connectors | ITT Cannon, LLC |
| Description | CONN PLUG HSG FMALE 43POS INLINE | CONN RCPT HSG FMALE 35POS PNL MT |
| Package | - | - |
| Series | Military, MIL-DTL-38999 Series III, ACT | MIL-DTL-5015, CA-B |
| Type | For Female Sockets | For Female Sockets |
| Features | Coupling Nut | Backshell |
| Mounting Type | Free Hanging (In-Line) | Panel Mount |
| Ingress Protection | Environment Resistant | IP67 - Dust Tight, Waterproof |
| Orientation | A | N (Normal) |
| Number of Positions | 43 | 35 |
| Connector Type | Plug Housing | Receptacle Housing |
| Shielding | Shielded | Unshielded |
| Contact Type | Crimp | Crimp |
| Shell Size - Insert | 25-43 | 32-7 |
| Fastening Type | Threaded | Reverse Bayonet Lock |
| Shell Size, MIL | J | - |
| Contact Size | 16 (20), 20 (23) | 12 (7), 16 (28) |
| Shell Material | Composite | Aluminum Alloy |
| Housing Color | Silver | Olive Drab |
| Shell Finish | Electroless Nickel | Chromate over Cadmium |
| Mounting Feature | - | Flange |
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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. What are the installation methods for circular connector housings?
Common installation methods include panel installation, PCB installation, or free hanging. Choosing the appropriate installation method for the casing should consider the overall design requirements of the system.
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3. What is a quick disconnect housing?
Quick disconnect housing is a type of housing designed for quick connection and disconnection, typically used in applications that require frequent plugging or quick maintenance, such as military, aviation, and industrial automation fields.
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4. What are the advantages of plastic shells compared to metal shells?
The plastic casing is lightweight, cost-effective, corrosion-resistant, and suitable for low-power applications and indoor environments. The metal casing provides better strength, impact resistance, and shielding performance.

