D38999/20MG39HD-LC vs D38999/20MG39PD-LC
| Part Number |
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| Category | Circular Connectors - Housings | Circular Connectors - Housings |
| Manufacturer | Amphenol Aerospace Operations | Amphenol Aerospace Operations |
| Description | CONN RCPT HSNG MALE 39POS PNL MT | CONN RCPT HSNG MALE 39POS PNL MT |
| Package | - | - |
| Series | Military, MIL-DTL-38999 Series III, Tri-Start? TV | Military, MIL-DTL-38999 Series III, Tri-Start? TV |
| Type | For Male Pins | For Male Pins |
| Mounting Type | Panel Mount | Panel Mount |
| Ingress Protection | Environment Resistant | Environment Resistant |
| Orientation | D | D |
| Number of Positions | 39 | 39 |
| Mounting Feature | Flange | Flange |
| Connector Type | Receptacle Housing | Receptacle Housing |
| Shielding | Shielded | Shielded |
| Contact Type | Crimp | Crimp |
| Shell Size - Insert | 21-39 | 21-39 |
| Fastening Type | Threaded | Threaded |
| Shell Size, MIL | G | G |
| Contact Size | 16 (2), 20 (37) | 16 (2), 20 (37) |
| Shell Material | Composite | Composite |
| Housing Color | Silver | Silver |
| Shell Finish | Electroless Nickel | Electroless Nickel |
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1. Does the circular connector housing support waterproof function?
Yes, many circular connector housings have waterproof features, especially IP67 or IP68 rated housings, suitable for use in humid or outdoor environments.
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2. What are the advantages of circular connector housings in outdoor applications?
The shell provides protection level, weather resistance, and corrosion resistance, ensuring that the connector operates stably for a long time in humid, extreme temperature, and outdoor environments.
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3. 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.
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4. How does the circular connector housing ensure the mechanical stress release of the cable?
The casing is usually equipped with cable clamps or stress relief devices, which firmly fix the cable to prevent mechanical stress caused by pulling or bending from being transmitted to the electrical connection part of the connector, thereby extending the life of the connector.
