S8219BA

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S8219BA is a standard signal switch used in various consumer electronics appliances such as TV receivers, DVD players, LD players, and CD players. It is a DC-in double pole normally open push button contact switch with UL approval, rated for 5A 125VAC and NO contact resistance less than 10mΩ. The S8219BA has a wide operating temperature range of -20°C to 85°C and is RoHS-compliant.

The S8219BA is designed to be mounted on a printed circuit board, and a wide variety of switch and actuator materials are available to meet the requirements of different applications. The basic design of the S8219BA features three metal contacts on the top surface, and one contact on the bottom. The metal contacts on the top surface are connected to the circuit board via a conductive adhesive coating, and the bottom contact is connected to ground.

The S8219BA is designed to be actuated directly by pressing the top surface of the switch, or indirectly by pushing an external button connected to the top surface of the switch. This allows the designer to use either of two methods of actuation depending upon the specific application. In addition, the S8219BA is designed with a transparent actuator so that the contacts may be seen when the switch is in an off position.

In general, the S8219BA is used to switch DC power for various applications. It is suitable for use in a variety of consumer electronics applications such as television receivers, DVD players, LD players, and CD players. The S8219BA can also be used in automotive and security applications as well.

The S8219BA operates on a simple principle of a very low contact resistance which is achieved by controlling the pressure applied on the switch contact points. This allows the switch contacts to remain closed and the power to continue to flow through the circuit until the switch is pressed. Once the switch is pressed, the contact points open, interrupting the power flow through the circuit and the circuit is then switched off.

The S8219BA is a reliable, cost-effective switch solution that provides users with the flexibility to customize their applications. With its wide operating temperature range, low contact resistance, and versatility, the S8219BA is the perfect choice for a wide variety of consumer electronics applications.

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