D38999/20MG39AC vs DTS20W19-32SE-LC
| Part Number |
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| Category | Circular Connectors - Housings | Circular Connectors - Housings |
| Manufacturer | Amphenol Aerospace Operations | TE Connectivity Deutsch Connectors |
| Description | CONN RCPT HSNG MALE 39POS PNL MT | CONN RCPT HSG FMALE 32POS PNL MT |
| Package | - | - |
| Series | Military, MIL-DTL-38999 Series III, Tri-Start? TV | MIL-DTL-38999 Series III, DTS |
| Type | For Male Pins | For Female Sockets |
| Mounting Type | Panel Mount | Panel Mount |
| Ingress Protection | Environment Resistant | Environment Resistant |
| Orientation | C | E |
| Number of Positions | 39 | 32 |
| Mounting Feature | Flange | Flange |
| Connector Type | Receptacle Housing | Receptacle Housing |
| Shielding | Shielded | Shielded |
| Contact Type | Crimp | Crimp |
| Shell Size - Insert | 21-39 | 19-32 |
| Fastening Type | Threaded | Threaded |
| Shell Size, MIL | G | - |
| Contact Size | 16 (2), 20 (37) | 20 |
| Shell Material | Composite | Aluminum Alloy |
| Housing Color | Silver | Olive Drab |
| Shell Finish | Electroless Nickel | Chromate over Cadmium |
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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. 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. 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.

