MS27466T25B61HC-LC vs MS27474T20B35S-LC
| Part Number |
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| Category | Circular Connectors - Housings | Circular Connectors - Housings |
| Manufacturer | TE Connectivity Deutsch Connectors | Amphenol Aerospace Operations |
| Description | CONN RCPT HSNG MALE 61POS PNL MT | CONN RCPT HSG FMALE 79POS PNL MT |
| Package | - | - |
| Series | Military, MIL-DTL-38999 Series I, DJT | Military, MIL-DTL-38999 Series II, JT |
| Type | For Male Pins | For Female Sockets |
| Mounting Type | Panel Mount | Panel Mount |
| Ingress Protection | Environment Resistant | Environment Resistant |
| Orientation | C | N (Normal) |
| Number of Positions | 61 | 79 |
| Mounting Feature | Flange | Bulkhead - Front Side Nut |
| Connector Type | Receptacle Housing | Receptacle Housing |
| Shielding | Shielded | Unshielded |
| Contact Type | Crimp | Crimp |
| Shell Size - Insert | 25-61 | 20-35 |
| Fastening Type | Bayonet Lock | Bayonet Lock |
| Contact Size | 20 | 22D |
| Shell Material | Aluminum Alloy | Aluminum Alloy |
| Housing Color | Olive Drab | Olive Drab |
| Shell Finish | Chromate over Cadmium | Cadmium over Nickel |
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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 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 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.

