969191-3

Series:	Junior Timer
Packaging:	Bulk
Part Status:	Active
Connector Type:	Plug
Contact Type:	Tab
Number of Positions:	8
Pitch:	0.200" (5.08mm)
Number of Rows:	2
Row Spacing:	0.200" (5.08mm)
Mounting Type:	Free Hanging (In-Line)
Contact Termination:	Crimp
Fastening Type:	--
Color:	Red
Features:	--
Note:	Contacts Not Included

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Introduction

The 969191-3 rectangular connector is a miniature, hermetically sealed, polarized connector used primarily in avionics, military, and aerospace application fields. This type of connector is commonly used to join two electrical components, thereby allowing an electrical signal to pass from one to the other, or it can be used to separate them while allowing for relative motion. The housing of this connector has a thickness of only 1.1mm and a mated height of 17.8mm. This small size, combined with its robust design, makes the 969191-3 an ideal connector for tight spaces and harsh environments.

Design

The 969191-3 consists of two mating parts - the male and female contacts, which are held together by a latch. The latch keeps the two contacts securely connected even in harsh environments, and the contacts also feature a protective coating for additional protection from corrosive elements. The 969191-3 also includes a plastic backshell that encapsulates the connections, providing strain relief and EMI/RFI shielding. A polyolefin gasket seals the backshell and contacts, providing a waterproof seal.

Material Selection

The 969191-3 has two primary contact materials - beryllium copper and gold plated beryllium copper. The beryllium copper is chosen for its corrosion resistance, excellent electrical conductivity, and low contact resistance. The gold plating of beryllium copper provides additional corrosion resistance as well as provides a softer contact material, which results in greater vibration resistance. The connector housing is made of brass for its durability and strength. The backshell is made of stainless steel for its corrosion resistance and strength.

Assembly

The 969191-3 is a two-piece connector that is easy to assemble. The male and female contacts are electro-mechanically joined by inserting the male contacts into the female and then securing them together with a latch. The contacts and latch can then be encapsulated in the plastic backshell. The backshell is secured to the housing by screws, and the polyolefin gasket helps provide a water-resistant seal.

Application Field

The 969191-3 is used primarily in avionics, military, and aerospace applications. It is an ideal connector for tight spaces and harsh environments, thanks to its small size and robust design. The vibration resistance, EMI/RFI shielding, and waterproof seal make it well-suited for use in these fields.

Working Principle

The 969191-3 is a two-piece connector. The male and female contacts are electro-mechanically connected by inserting the male into the female and then securing them together with a latch. The two contacts are also encapsulated by the plastic backshell, which is secured to the housing by screws. The polyolefin gasket provides a waterproof seal. Once the male and female contacts are secured together, electrical signals can pass from one to the other. The latch also provides a secure connection even in harsh environments, and the housing, backshell, and gasket provide strain relief and EMI/RFI shielding.

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