| Part Number | 1977881-1 | 1977891-1 |
|---|---|---|
| Manufacturer | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors |
| Category | Circular Connectors - Housings | Circular Connectors - Housings |
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| Product Status | Active | Active |
| Connector Type | Plug Housing | Receptacle Housing |
| Type | For Male Pins | For Male Pins |
| Number of Positions | 4 | 16 (12 + 4 Power) |
| Shell Size - Insert | 11-4 | 23-16 |
| Shell Size, MIL | - | - |
| Contact Type | Crimp | Crimp |
| Contact Size | 16 | 16 (12), 8 Power (4) |
| Mounting Type | Free Hanging (In-Line) | Free Hanging (In-Line) |
| Mounting Feature | - | - |
| Fastening Type | Threaded | Threaded |
| Orientation | Keyed | Keyed |
| Primary Material | - | - |
| Shell Material | Polyamide (PA66), Nylon 6/6 | Polyamide (PA), Nylon |
| Shell Finish | - | - |
| Housing Color | Black | Black |
| Ingress Protection | IP67 - Dust Tight, Waterproof | IP65/IP67 - Dust Tight, Water Resistant, Waterproof |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 |
| Features | Backshell, Coupling Nut | - |
| Shielding | Unshielded | Unshielded |