TE Connectivity Electronic Connector 521781-1

4P Nylon Receptacle Connector, Wire-to-Wire, Straight, Quick Connect Product overview: 521781-1 from TE Connectivity is an Electronic Connector for board-to-board, wire-to-board, backplane, terminal, cable, and industrial interconnect applications. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include key electrical ratings, package details, and application requirements. Search-friendly keywords include connector, interconnect, header, socket, terminal block, Electronic Connector, Rectangular Connector Accessories. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 340-521781-1 can be used for catalog matching and distributor lookup.

POSI LOCK HSG MK III

Win Source Part Number: 1364074-521781-1
Category: Connectors, Interconnects - Terminals - Housings, Boots
Fake Threat In the Open Market: 41 pct.
MSL Level: 1 (Unlimited)
Mfr: TE Connectivity AMP Connectors
Series: Mark III
Package: Bulk
Product Status: Active
Base Product Number: 521781
Mounting Type: Free Hanging (In-Line)
HTSUS: 8538.90.6000
ECCN: EAR99
Style: Housing
Color: Natural
Number of Positions: 4
Note: Contacts Not Included
Terminal Type: Quick Connect, Disconnect
Gender: Female, Receptacle
For Use With/Related Products: 0.187" (4.75mm) and 0.250" (6.35mmm) Quick Connects
Terminal Size: 0.187" (4.75mm), 0.250" (6.35mm)
Stacking Direction: Side to Side
Material: Nylon

"4 Position Housing Connector Female, Receptacle Natural 0.187"" (4.75mm), 0.250"" (6.35mm)"