TVS - Thyristors

Category Introduction

Thyristor-based Transient Voltage Suppression (TVS) devices are over-voltage protection devices that approximate an open circuit under normal operating conditions. Application of a voltage across them in excess of some specific value called the breakover voltage causes them to enter a conductive state approximating a short circuit. This state persists until current flow through the device is reduced below a minimum value called "hold current" by some outside influence within the circuit.

Product List

33 Items

Mfr Part #	Quantity Available	UnitPrice	Series	Packaging	Product Status	Voltage - Breakover	Voltage - Off State	Voltage - On State	Current - Peak Pulse (8/20µs)	Current - Peak Pulse (10/1000µs)	Current - Hold (Ih)	Number of Elements	Capacitance	Mounting Type	Package / Case
LCP1521SRL THYRISTOR 100A 8SOIC STMicroelectronics	823	$0.91	LCP	Tape & Reel (TR)	Active	-	-	-	100 A	30 A	150 mA	1	35pF	Surface Mount	8-SOIC (0.154", 3.90mm Width)
SMP100LC-200 THYRISTOR 200V 400A DO214AA STMicroelectronics	236	$1.43	SMP, TRISIL™	Tape & Reel (TR)	Active	250V	200V	-	400 A	100 A	150 mA	1	60pF	Surface Mount	DO-214AA, SMB
SMP30-270 THYRISTOR 270V 70A DO214AC STMicroelectronics	886	$0.94	SMP, TRISIL™	Tape & Reel (TR)	Active	360V	270V	-	70 A	30 A	150 mA	1	20pF	Surface Mount	DO-214AC, SMA
SMP50-270 THYRISTOR 270V 150A DO214AC STMicroelectronics	677	$0.96	SMP, TRISIL™	Tape & Reel (TR)	Active	360V	270V	-	150 A	50 A	150 mA	1	25pF	Surface Mount	DO-214AC, SMA
ETP01-1621RL THYRISTOR 16V 100A 8SOIC STMicroelectronics	869	$1.12	ETP01, TRISIL™	Tape & Reel (TR)	Active	25V	16V	-	100 A	-	30 mA	3	16pF	Surface Mount	8-SOIC (0.154", 3.90mm Width)
SMP100LC-90 THYRISTOR 90V 400A DO214AA STMicroelectronics	237	$1.16	SMP, TRISIL™	Tape & Reel (TR)	Active	125V	90V	-	400 A	100 A	150 mA	1	80pF	Surface Mount	DO-214AA, SMB
SMP100LC-160 THYRISTOR 160V 400A DO214AA STMicroelectronics	527	$1.44	SMP, TRISIL™	Tape & Reel (TR)	Active	200V	160V	-	400 A	100 A	150 mA	1	65pF	Surface Mount	DO-214AA, SMB
TPI8011NRL THYRISTOR 30A 8SOIC STMicroelectronics	173	$2.71	TPI	Tape & Reel (TR)	Active	110V	-	-	-	30 A	150 mA	1	-	Surface Mount	8-SOIC (0.154", 3.90mm Width)
SMTPA130 THYRISTOR 130V 150A DO214AA STMicroelectronics	858	$0.96	SMP, TRISIL™	Tape & Reel (TR)	Active	173V	130V	-	150 A	50 A	150 mA	1	30pF	Surface Mount	DO-214AA, SMB
SMTPA100 THYRISTOR 100V 150A DO214AA STMicroelectronics	684	$1.10	SMP, TRISIL™	Tape & Reel (TR)	Active	133V	100V	-	150 A	50 A	150 mA	1	35pF	Surface Mount	DO-214AA, SMB
SMP100MC-140 THYRISTOR 140V 300A DO214AA STMicroelectronics	171	$1.29	SMP, TRISIL™	Tape & Reel (TR)	Active	175V	140V	-	300 A	100 A	150 mA	1	60pF	Surface Mount	DO-214AA, SMB
TPI8011N THYRISTOR 30A 8SOIC STMicroelectronics	395	$2.30	TPI	Tube	Obsolete	110V	-	-	-	30 A	150 mA	1	-	Surface Mount	8-SOIC (0.154", 3.90mm Width)
SMP100LC-35 THYRISTOR 35V 400A DO214AA STMicroelectronics	709	$1.14	SMP, TRISIL™	Tape & Reel (TR)	Active	55V	35V	-	400 A	100 A	150 mA	1	55pF	Surface Mount	DO-214AA, SMB
SMP100LC-25 THYRISTOR 25V 400A DO214AA STMicroelectronics	579	$1.28	SMP, TRISIL™	Tape & Reel (TR)	Active	35V	25V	-	400 A	100 A	150 mA	1	65pF	Surface Mount	DO-214AA, SMB
SMP100LC-65 THYRISTOR 65V 400A DO214AA STMicroelectronics	603	$1.34	SMP, TRISIL™	Tape & Reel (TR)	Active	85V	65V	-	400 A	100 A	150 mA	1	90pF	Surface Mount	DO-214AA, SMB
SMP75-8 THYRISTOR 8V 250A DO214AA STMicroelectronics	221	$1.65	SMP, TRISIL™	Tape & Reel (TR)	Active	15V	8V	-	250 A	75 A	50 mA	1	60pF	Surface Mount	DO-214AA, SMB
SMP100LC-270 THYRISTOR 270V 400A DO214AA STMicroelectronics	772	$0.75	SMP, TRISIL™	Tape & Reel (TR)	Active	335V	270V	-	400 A	100 A	150 mA	1	60pF	Surface Mount	DO-214AA, SMB
SMTPA270 THYRISTOR 270V 150A DO214AA STMicroelectronics	102	$1.16	SMP, TRISIL™	Tape & Reel (TR)	Active	360V	270V	-	150 A	50 A	150 mA	1	25pF	Surface Mount	DO-214AA, SMB
SMP100LC-400 THYRISTOR 400V 400A DO214AA STMicroelectronics	397	$1.34	SMP, TRISIL™	Tape & Reel (TR)	Active	530V	400V	-	400 A	100 A	150 mA	1	45pF	Surface Mount	DO-214AA, SMB
SMP100LC-8 THYRISTOR 8V 400A DO214AA STMicroelectronics	151	$1.53	SMP, TRISIL™	Tape & Reel (TR)	Active	15V	8V	-	400 A	100 A	50 mA	1	75pF	Surface Mount	DO-214AA, SMB

About TVS Thyristor

What are TVS Thyristor?

TVS Thyristor

TVS Thyristors, or Transient Voltage Suppressor Thyristors, are semiconductor devices designed to protect electronic circuits from voltage spikes and transients. These devices operate by clamping excessive voltage and diverting the surge current away from sensitive components, thus preventing damage. TVS Thyristors are triggered into a low-resistance state when a transient voltage exceeds a certain threshold, allowing them to absorb and dissipate the energy of the surge. Once the transient subsides, they return to their high-resistance state, ready to protect against future surges.

Types of TVS Thyristor

Unidirectional TVS Thyristors

Unidirectional TVS Thyristors are designed to protect circuits from positive voltage transients. They are typically used in DC applications where the voltage polarity does not change. These devices are characterized by their ability to handle high surge currents and are often employed in power supply lines and DC motor controls.

Bidirectional TVS Thyristors

Bidirectional TVS Thyristors can handle both positive and negative voltage transients, making them suitable for AC applications where voltage polarity can reverse. These devices are ideal for protecting AC power lines, communication lines, and other circuits exposed to alternating current environments.

Low Capacitance TVS Thyristors

Low capacitance TVS Thyristors are specifically designed for high-speed data lines and RF applications where minimal signal distortion is crucial. They offer protection without significantly affecting the signal integrity, making them suitable for protecting HDMI, USB, and other high-frequency interfaces.

How to choose TVS Thyristor?

When selecting a TVS Thyristor, several key parameters must be considered:

Clamping Voltage: Ensure the clamping voltage is below the maximum voltage rating of the protected circuit.
Peak Pulse Current: Choose a device that can handle the expected surge current.
Breakdown Voltage: The breakdown voltage should be slightly above the normal operating voltage of the circuit.
Capacitance: For high-speed applications, select a low-capacitance TVS Thyristor to minimize signal distortion.

Evaluate product quality by reviewing supplier certifications, reliability testing results, and customer reviews. Consider environmental factors such as temperature range and humidity, and ensure the device is compatible with the installation requirements of your specific application.

Applications of TVS Thyristor

Telecommunications

In the telecommunications industry, TVS Thyristors protect sensitive communication equipment from lightning-induced surges and electrostatic discharge (ESD). They are used in base stations, routers, and network switches to ensure uninterrupted service and data integrity.

Automotive

Automotive applications utilize TVS Thyristors to safeguard electronic control units (ECUs), infotainment systems, and sensor interfaces from voltage spikes caused by load dumps and inductive loads. These devices help maintain vehicle safety and performance.

Consumer Electronics

TVS Thyristors are employed in consumer electronics to protect devices such as smartphones, tablets, and laptops from ESD and power surges. They ensure the longevity and reliability of these gadgets by preventing damage to internal components.

Industrial Equipment

In industrial settings, TVS Thyristors protect machinery and control systems from voltage transients caused by switching operations and lightning strikes. They are crucial in maintaining operational efficiency and reducing downtime.

Renewable Energy

Renewable energy systems, such as solar and wind power installations, use TVS Thyristors to protect inverters and power converters from voltage surges. This protection is vital for ensuring the stability and efficiency of energy conversion processes.