S4X8ES1RP

Current - On State (It (RMS)) (Max):	800mA
Supplier Device Package:	TO-92
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C
SCR Type:	Sensitive Gate
Current - Non Rep. Surge 50, 60Hz (Itsm):	8A, 10A
Current - Off State (Max):	3µA
Current - Hold (Ih) (Max):	5mA
Series:	--
Current - On State (It (AV)) (Max):	510mA
Voltage - On State (Vtm) (Max):	1.7V
Current - Gate Trigger (Igt) (Max):	5µA
Voltage - Gate Trigger (Vgt) (Max):	800mV
Voltage - Off State:	400V
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Thyristors - SCRs: S4X8ES1RP Application Field and Working Principle

Thyristors are one of the most common semiconductor components and are widely used in various applications, including electrical motor controllers, power supplies, and industrial motor controls. Among these, the SCR (silicon-controlled rectifier) is the most popular because of its robust design, high efficiency, low power requirements and low on-state voltage drop. The S4X8ES1RP is a series of SCRs from SEMIKRON, an international leader in power semiconductor components. In this article, we will discuss the application field of the S4X8ES1RP and its working principle.

Application Field of S4X8ES1RP

S4X8ES1RP is a three-phase, semiconductor rectifier designed primarily for locomotive traction applications. Its application field also includes medium-voltage motor drives, energy storage and power conversion systems, power engineering, and other control applications.The device has a wide range of features that make it ideal for applications requiring power reliability, long-term stability, and high-energy efficiency. Its ability to rectify high-voltage AC power, low on-state voltage drop and low-power dissipation make it an ideal option for energy-efficient equipment.

Working Principle of S4X8ES1RP

At the core of the S4X8ES1RP is a three-phase SCR rectifier. The device utilizes thyristor technology – three layers of N-type and P-type materials stacked together. When positive voltage is applied to the P-type material, the two N-type materials can form a conducting path for current flow. Thus, the SCR allows current to flow in one direction only, preventing reverse current flow.The S4X8ES1RP is a high-speed asymmetrical SCR, meaning that it is capable of switching high voltages in microseconds or even nanoseconds. By controlling the gate current flowing into the thyristor, the device can reach full conduction in a fraction of a single cycle. This allows the S4X8ES1RP to provide high-efficiency power conversion with very low switching losses.

Conclusion

The S4X8ES1RP is a three-phase SCR designed primarily for locomotive traction applications. It can also be used in medium-voltage motor drives, energy storage systems, and power engineering. Its ability to switch high voltages in microseconds and its low on-state voltage drop make it ideal for energy-efficient applications.

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