Series:	SJ2
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Connector Type:	Phone Jack
Gender:	Female
Signal Lines:	Multiple
Industry Recognized Mating Diameter:	2.50mm (0.094", 3/32", Sub Mini, Miniature) - Headphone
Actual Diameter:	0.102" (2.60mm)
Number of Positions/Contacts:	4 Conductors, 5 Contacts
Internal Switch(s):	Single Switch
Mounting Type:	Surface Mount, Right Angle
Termination:	Solder
Shielding:	Unshielded
Features:	Board Guide
Insulation Color:	--
Voltage - Rated:	12VDC
Current Rating:	1A
Mating Length/Depth:	0.433" (11.00mm)
Contact Material - Plating:	Silver
Body Material:	--
Body Color:	Black
Includes:	--
Housing Material:	Polyamide (PA10T), Nylon 10T
Contact Material:	Brass; Copper Alloy
Cable Opening:	--
Panel Hole Size:	--
Thread Size:	--
Operating Temperature:	-25°C ~ 85°C

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SJ2-25954B-SMT-TR application field and working principle

Introduction

Barrel Audio connectors are used to connect audio components in a wide variety of consumer and professional products. The SJ2-25954B-SMT-TR (Surface Mount Type TR) is one type of barrel audio connector, designed for use in applications where a combination of physical robustness and electrical performance is required. This article explains the application field and working principle of SJ2-25954B-SMT-TR.

Application Field

SJ2-25954B-SMT-TR is designed for applications where robustness and electrical performance must be maintained despite high levels of vibrancy or rapid changes in environmental conditions. It is well-suited for use on vehicular audio equipment, automotive audio systems, and any other audio system that may experience significant vibration or environmental fluctuations. The SJ2-25954B-SMT-TR connector has a 9-pin, 2.5mm pitch housing, and features a wide variety of electrical/mechanical features designed for robust operation in harsh environments. It has no exposed screws, making it more durable and more resistant to dirt, water, and other elements. It also features a secondary "lock" option, making it resistant to accidental disconnection or misalignment. The SJ2-25954B-SMT-TR has a removable signal contact that can be a crimp contact, a wire-guide contact, a grommet contact, or a solder contact. This allows the user to tailor the connector to the specific requirements of the application. It also allows the user to easily replace or upgrade the connector for future applications.

Working Principle

The SJ2-25954B-SMT-TR is based on an electrical connection principle known as a solderless connector. A solderless connector uses spring-loaded strips of metal that are mechanically pressed into electrical contact using pressure from the insertion tool.The SJ2-25954B-SMT-TR connector has two components, a female component and a male component. The female component is a molded plastic connector body with several spring-loaded metal strips. These strips are generally made of stainless steel for durability and corrosion resistance. The metal strips are arranged in a way that when an insertion tool is used to push the two components together, the strips make electrical contact. The male component is an insertion tool, also made of stainless steel, that has several metal tabs that mate with the spring-loaded strips of the female connector. When the insertion tool is used to assemble the two components, the metal strips of the female connector are pushed outwards by the tabs of the insertion tool, making electrical contact.

Conclusion

SJ2-25954B-SMT-TR is an innovative and reliable barrel audio connector designed for use in applications where robustness and electrical performance must be maintained in harsh environments. It has a 9-pin, 2.5mm pitch housing and features several features designed for robust operation in harsh environments. It also features a removable signal contact that can be tailored to suit the specific requirements of the application. The connector is based on a solderless connector, where the two components are connected using pressure from the insertion tool, ensuring strong and reliable electrical contact.

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