917781-1

Operating Temperature:	-30°C ~ 105°C
Insulation Height:	0.386" (9.80mm)
Contact Shape:	Square
Contact Finish - Mating:	Tin
Contact Finish Thickness - Mating:	--
Contact Finish - Post:	Tin
Contact Material:	Copper Alloy
Insulation Material:	Polyamide (PA66), Nylon 6/6, Glass Filled
Features:	Board Guide
Overall Contact Length:	0.410" (10.41mm)
Ingress Protection:	--
Material Flammability Rating:	UL94 V-0
Insulation Color:	Natural
Current Rating:	3A
Voltage Rating:	50V
Mated Stacking Heights:	13.7mm
Contact Finish Thickness - Post:	--
Applications:	General Purpose
Number of Positions Loaded:	All
Packaging:	Bulk
Part Status:	Active
Connector Type:	Header
Contact Type:	Male Pin
Pitch - Mating:	0.098" (2.50mm)
Number of Positions:	3
Number of Rows:	1
Row Spacing - Mating:	--
Series:	Signal Double Lock
Style:	Board to Cable/Wire
Shrouding:	Shrouded - 4 Wall
Mounting Type:	Through Hole
Termination:	Kinked Pin, Solder
Fastening Type:	Latch Holder
Contact Length - Mating:	0.185" (4.70mm)
Contact Length - Post:	0.126" (3.20mm)

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Rectangular Connectors - Headers, Male Pins - 917781-1 Application Field and Working PrincipleRectangular Connectors - Headers, Male Pins, such as part number 917781-1, are a type of electrical connector that is mainly used in high-density board-to-board and cable-to-board applications. Its basic function is to make the connection between two components in order to enable the signal or power transmission.Shape and SizeThe 917781-1 is a 1mm pitch mini PCBA header wafer with a 2x13 wafers configuration, and it has a UL, RoHS and REF compliant rating. It has a right angled type, and the dimensions of the header is 1.27*2.72mm.Material and PlatingThe 917781-1 is made of an ultra-thin phosphor bronze (PB) material with plating that includes a tin-Lead alloy (1.9micron minimum). Its contact spring has a thickness of 0.3mm, and copper alloy material with gold-plated is also applied.Contact DesignThe contact points are specifically designed for a secure, reliable connection between two components, with contact materials compliant with UL746 and UL1910 standards. The contact spring is made of copper alloy material with gold-plating, providing good electrical conduction. In order to minimize the insertion force, special internal structure design is utilized. The contact spring can provide signal continuity, even if it is under an external force of 2.5N.Housing DesignThe 917781-1 uses a PA 46 UL 94V-0 rated housing, meaning it is resistant to mechanical shock, vibration and temperature fluctuations. It provides insulation against electrical shock and also prevents corrosion. The housing is designed to offer a waterproof contact between the mating parts, ensuring reliable operation.Application Field and Working PrincipleThe 917781-1 rectangular connector is mainly designed for high-density board-to-board and cable-to-board connections. It is also applicable in various small form factor electronic devices, such as sensor control modules, ICs and sensors, and portable electronics.The 917781-1 works in the principle of electrical conduction. Its contact spring provides signal continuity and low current leakage when receiving electrical signals, while its housing seals the connector to prevent water intrusion. The pin-and-socket design of the contact spring provides secure, reliable connections.

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