7208P3D9CQE

Toggle Switches

Toggle switches have been widely used in controlling circuits for decades and are considered one of the most commonly used electrical components today. 7208P3D9CQE, a toggle switch manufactured by STMicroelectronics, is a leading model in this field. This article will provide an overview of the application field and working principles of 7208P3D9CQE.

Application Field

7208P3D9CQE is a single pole single throw (SPST) NO toggle switch with 0.2A maximum rated current, 6V maximum rated voltage, 1kOhms maximum operating force, and 2.5mmx6.3mm standard pin pitch. Owing to its impressive features, 7208P3D9CQE could be used in a variety of applications such as industrial control, remote controls, automotive, office automation, etc. The following are some typical application scenarios of 7208P3D9CQE:

• Industrial control: door control system, electronic drum switch, lighting control, etc.
• Automotive: light switch, traction control switch, power supply switch, etc.
• Office automation: printer control switch, scanner control switch, etc.

Working Principle

7208P3D9CQE is essentially an automatic on/off switch. It consists of a planar switch arm, a copper alloy contact, two springs, and two plastic insulating plates. When the switch is in the off F (Open) position, the two contact arms do not make contact and the switch is off. When the switch is turned to the On position, the two contact arms will be forced together, thus enabling the current to flow through the switch and turning the switch on. The two brass knobs can be used to lock the switch in either the on or off position.

In addition, 7208P3D9CQE is equipped with a zinc-aluminum alloy contact. This contact is able to maintain a high quality connection and reduce contact resistance. It also features a specific zinc-tin alloy plate which provides superior mechanical stability and wear resistance. Furthermore, the two springs inside the switch allow for a much smoother operation and improved shock resistance.

Conclusion

In summary, 7208P3D9CQE is a versatile and reliable toggle switch with a wide range of applications. It features a robust design, excellent contact quality and good shock resistance. Moreover, its zinc-aluminum alloy contact ensures a reliable connection and its zinc-tin alloy plate provides superior mechanical stability and wear resistance.