Introduction to Transient Voltage Suppressor (TVS)

Transient Voltage Suppressors (TVS) are semiconductor devices designed to provide protection against voltage and current transients. The silicon Transient Voltage Suppressor (TVS) is designed to operate in the avalanche mode and uses a large junction area to absorb large transient currents. Operation of Transient Voltage Suppressor (TVS) in the avalanche mode ensures a low impedance; also the TVS is characterized by a fast response time. The Transient Voltage Suppressor (TVS) is available as unipolar or bipolar (that is Transient Voltage Suppressor (TVS) can suppress transients in one direction or in both the directions).

Characteristic Curves of Transient Voltage Suppressors (TVS)

Referring to the curve of Transient Voltage Suppressor (TVS):

The breakdown voltage (Vbr) is the point the Transient Voltage Suppressor (TVS) device enters avalanche, a high conductance region. This Vbr is measured at test current It. A circuit with a TVS protection would obviously operate below the voltage, Vrwm, also referred to as the working voltage. Ir is the maximum current measured at this working voltage of Transient Voltage Suppressor. The maximum peak pulse current for a Transient Voltage Suppressor (TVS) is Ipp. The maximum clamping voltage, Vc, is the maximum voltage across the Transient Voltage Suppressor (TVS) when it is subjected to Ipp.

Click below for full specifications and ordering informatiom:

Transient Suppressors

• Unidirectional

• 1N5555 1N5556 1N5633A 1N5634 1N5634A 1N6359 1N6377 1N6380 1N6381 1N6402A 1N6412 1N6448A P6KE6.8A P6KE62A P6KE7.5A SA15A SA33A SA36ATVS512 TVS515 TZB36A
• Bidirectional

• 1N6040A, 1N6042A, 1N6052, 1N6054A, 1N6157A, 1N6164, 1N6267CAJ, 1N30647149, JTX1N4467, L2004FS1, P5KE30CA, P6KE130C, P6KE15CA, SM9445-66 SMBJ20CA, SMBJ5.0C, SMBJ6.5CA, UPD1612GC(A2)-027-3B9 UPG2123GRXP0431200LER, XXAA319, Y2145EP, Z0774, Z2200, ZP016
• Array

• LCA05C

Did you Know...

• AMS has been servicing the semiconductor industry for more than 35 years as an leader in component manufacturing and distribution. We now can custom test and manufacture parts to your specifications. Give us a call today at (973) 377-9566 to find out how we can help your business! To access our online store for the following products, click on the products:

• Diodes
• Transistors
• Integrated Circuits
• Optoelectronics
• Thyristors
Our Inventory Database which contains various components ranging from the early 1950's transistor technology up to the present state-of-the-art chips is made searchable via this website for your convenience. Our Spec Sheet Databases are made available for online searching completely free of charge.

This pair of unidirectional low voltage Transient Voltage Suppressor (TVS) devices for the 1N5907 and 1N5908 JEDEC registrations with different packages have the same high Peak Pulse Power rating of 1500 W with extremely fast response times. The 1N5907 is available in a military qualified version as described in the Features section herein. They are most often used for protecting against transients from inductive switching environments, induced RF effects, or induced secondary lightning effects as found in surge levels of IEC61000-4-5 described herein. They are also very successful in protecting airborne avionics and electrical systems when low voltage is required. Since their response time is virtually instantaneous, they can also protect from ESD and EFT per IEC61000-4-2 and IEC61000-4-4.Both hermetic seal and molded types are available.

Din Rail TVSS(Thermally Protected) The Surge-Trap allows direct connection with the DIN-rail mount option. Featuring individual mode visual and remote indicators, providing status to critical control circuit. The Surge-Trap provides an Interrupting Rating and a Thermally Protected MOV without additional protection devices.

FEATURES:

· 100kA Interrupting Rating
· Thermally protected MOV
· Din rail mountable
· IP20 finger safe design
· Remote visual indication
· 3 pin NO / NC contact
· Wire marker kits
· Optional direct mount
· Surge Life @ 3kA-8x20_s: 5000 events
· Surge Life @ 10kA-8x20_s: 1000 events
· Operating and Storage Temperature: -25°C to +60°C

APPLICATIONS:

• Transient Voltage Surge Suppression
• AC/DC Distribution
• High Voltage Power Supplies
• Telecom
• Motor Control/Drive Systems
• PLC Applications
• Power Transfer Equipment

Devices for Protection Against Power Quality Problems

There are many products offered to address power quality problems. Some devices such as the surge arrestor are very good at providing protection against a specific problem, while devices like power conditioners can provide protection from a wide variety of problems. The following is intended to provide a brief overview of many of the most common products used for power quality protection.

Utility Systems Technologies, Inc. manufactures custom Surge Suppressors, Transient Voltage, to match your specifications.

Alltec stocks a full line of Transient Voltage Surge Suppression products and accessories.

PowerTrip Transient Voltage Surge Suppression

• Primary AC Protectors
• Secondary AC Protectors
• Data and Low Voltage Protectors
• RF and Coax Protectors

PowerTrip surge suppressors provide the level of protection needed to assure that your mission critical systems survive and perform as designed. Utilizing leading edge hybrid circuit designs incorporating both Optimal Response and Optimal Sinewave Tracking circuit designs, these versatile devices are an essential component in any comprehensive facility wide protection system.

To view a complete listing of Alltec's TVSS products and accessories, please visit their online product catalog. If you would prefer the CDROM or printed version of the catalog, please contact them to request a copy.

The UL listed Sandwich Block® from Lightning Eliminators & Consultants is designed for AC power surge protection and offers the lowest let-through voltage in the industry which ensures equipment is protected from damaging electrical surges.The Sandwich block is made by placing large patented MOVs between heavy aircraft-grade aluminum plates that act as heat sinks. Each Sandwich Block is then assembled into our heavy duty equipment boxes and ready for your AC power application.

Contact us to order your Sandwich Block solution.

Benefits of Sandwich Block Systems

• Reliably protects against lightning induced transients
• Low risk of punch through
• Runs very cool, even under continual and severe stress
• The lowest let-through voltage of any surge device
• Components have a super-efficient integral heat sink
• No circuit boards, impedance-causing wire, or solder in the current carrying path
• 1/3 fewer parts allow SB systems to take up far less valuable space in equipment rooms

Some applications include

• Used to protect critical AC electrical service entrances and other services
• heavy industrial, process plants
• TV & radio broadcast sites
• commercial, data centers
• 911 centers, schools, hospitals, public works facilities
• and any sites requiring fail-safe protection

Visit our website for detailed product sheets and additional information - click here

Lightning Eliminators & Consultants, Inc. is dedicated to providing Integrated Lightning Solutions by using lightning protection design, grounding systems engineering, surge protection design, and consulting services. Learn more about LEC's Engineered Lightning Solutions.