P3500ZA

Series:	SIDACtor®
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Voltage - Breakover:	400V
Voltage - Off State:	320V
Voltage - On State:	4V
Current - Peak Pulse (8/20µs):	150A
Current - Peak Pulse (10/1000µs):	45A
Current - Hold (Ih):	150mA
Number of Elements:	4
Capacitance:	30pF
Mounting Type:	Through Hole
Package / Case:	12-SIP

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TVS – Thyristors: P3500ZA Application Field and Working Principle

Thyristors (also known as SCRS), are a semiconductor component made from three different layers of alternating N-type and P-type silicon. Thyristors are commonly used in a variety of electrical and electronic circuits, and the P3500ZA is a very popular thyristor used in the industrial and automotive circuits. This article discusses the application field and working principle of the P3500ZA.

Application Field

The P3500ZA has a wide variety of applications due to its high critical rate breakover voltage and its high surge carrying capacity. The P3500ZA thyristor is commonly used in industrial and automotive circuits such as: * Power control circuits* Voltage-sensitive circuits * Power supply circuits * Automotive relays * Motors starters* Governing circuits * Voltage regulatorsThe P3500ZA also has potential uses in high-energy arc suppression applications such as for sensitive medical equipment, high-intensity lighting systems, and high-power motor drives.

Working Principle

The P3500ZA is a static thyristor, which means that it does not rely on any triggering currents or voltages once it is turned on. This makes the P3500ZA particularly valuable as it can be used in applications such as motor control circuits with relatively fast response times. The P3500ZA thyristor is constructed from a three-layer N-type and P-type silicon sandwich. The two N-type layers are called the Emitter and the Collector, and the P-type layer is called the Base. To turn on the thyristor, a potential difference needs to be applied between the Emitter and the Base. This creates an electric charge that allows the current to flow from the Emitter to the Collector.Once the P3500ZA thyristor is switched on, the electric charge between the Emitter and the Base is maintained even when the potential between the Emitter and the Base is zero. This means that the P3500ZA is effectively locked in the “on” state until the potential between the Emitter and the Base is reversed, thus turning off the thyristor. The P3500ZA thyristor is a versatile component with a wide variety of applications in industrial and automotive circuits. It is easy to use and requires no triggering currents or voltages once switched on, making it a very attractive choice for applications such as power control, voltage-sensitive circuits, and power supply circuits.

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