211882-1 vs ATC-17-9-1939PN

Part Number	211882-1	ATC-17-9-1939PN
Category	Circular Connectors - Housings	Circular Connectors - Housings
Manufacturer	TE Connectivity AMP Connectors	Amphenol Industrial Operations
Description	CONN PLUG HSNG MALE 4POS INLINE	CONN RCPT HSNG MALE 9POS PNL MNT
Package	-	-
Series	CPC Series 1	AT
Type	For Male Pins	For Male Pins
Features	Coupling Nut	-
Mounting Type	Free Hanging (In-Line)	Panel Mount
Orientation	A	Keyed
Number of Positions	4	9
Connector Type	Plug Housing	Receptacle Housing
Shielding	Unshielded	Unshielded
Contact Type	Crimp	Crimp
Shell Size - Insert	11-4	9-1939
Fastening Type	Threaded	Reverse Bayonet Lock
Contact Size	16	-
Shell Material	Thermoplastic	Thermoplastic
Housing Color	Gray	Black
Material Flammability Rating	UL94 V-0	-
Ingress Protection	-	Environment Sealed
Mounting Feature	-	Bulkhead - Front Side Nut

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.
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.
3. What are the standard dimensions for circular connector housings?

The size of the casing usually depends on the type of connector and the application environment, with multiple diameters, lengths, and shapes to choose from. Typical sizes include M12, M16, M23, and so on.
4. How to maintain the circular connector housing?

Regularly inspect the surface of the casing for wear or corrosion, ensuring that the seals are intact and kept clean. If necessary, aging or damaged casings and seals should be replaced in a timely manner.