Standard Unidirectional and Bidirectional TVS
Overview
Microsemi Corporation (MSCC) is a world leader in the design, fabrication, qualification, and supply of Transient Voltage Suppressors (TVS). Applications include military and medical equipment, telecommunications, computers and their peripherals. Microsemi also provides protection to the electronics of engine control systems in the sophisticated avionics and aerospace industries. The company offers a broad portfolio of both uni- and bi- directional discreet plastic TVS devices with power levels from 600W to 100kW. The qualification test plans and reliability monitoring provided for all these products are in line with the best industry standard practices. This catalog includes an exciting expansion in Microsemi’s industry leading Plastic Large Area Device (PLAD) surface mount package offerings for TVS devices. PLADs provide large exposed metal pads on the bottom of the package with excellent direct internal connection to the die – there are no wire bonds. This provides a very low resistance thermal path, which is much superior to axial leaded devices and is critical in meeting the expanding requirements for multi-stoke and multi-burst event protection in composite body aircraft.Increasing emphasis is being placed on multi-stroke and multi-burst lightening protection, particularly (but not exclusively) in the protection of the growing proportion of new aircraft being built with largely composite bodies. Test standards for these hazards are defined by RTCA standard DO-160. Microsemi’s high-reliability plastic PLAD packaged TVS devices are uniquely suited to address these requirements.
Resources
- TVSarray Selector and Design Guide
- High Reliability Non-hermetic Product Portfolio
- Micronote 100 - MicroNote Index and Summary
- Micronote 101 - A Primer on TVS Devices
- Micronote 102 - An Introduction to TVS Devices
- Micronote 103 - What is a TVS?
- Micronote 104 - Using the Power vs Time Curve
- Micronote 105 - What is a Thyristor Surge Protector Device
- Micronote 106 - Crowbars and Clamps
- Micronote 107 - Cross Referencing TVS Devices
- Micronote 108 - Determining Clamping Voltages for Pulse Currents
- Micronote 109 - Protecting from ESD
- MicroNote 110: Parasitic Capacitance in TVS
- Micronote 111 - Parasitic Lead Inductance in TVS
- Micronote 112 - Series Stacking TVS devices for Higher Current
- Micronote 113 - Parallel Stacking TVS devices for Higher Current
- Micronote 114 - Derating TVS devices for Higher Junction Temp
- Micronote 115 - Derating TVS at Elevated Temp for varying Pulse Widths
- Micronote 116 - Protection at a Transformer
- Micronote 117 - Protecting USB Data I/O Ports
- Micronote 118 - TVS/Chip Product Overview
- Micronote 120 - Selecting TVS with PPP and Waveform Considerations
- Micronote 121 - Protecting Data I/O ports with TVSArrays
- Micronote 122 - Transient Protection across High Data Rate & RF Lines
- Micronote 123 - Effective use of Space Saving TVSArrays
- Micronote 125 - How to Select a Transient Voltage Suppressor
- Micronote 126 - Lightning Protection for Aircraft per RTCA/DO-160D for ARINC 429 Protocol
- Micronote 127 - Lightning Protection for Aircraft Electrical Systems
- Micronote 128 - Unidirectional/Bi-Directional TVS Differences
- Micronote 129 - Upscreening Commercial TVS Diodes for Avionics and Robust Environments or Applications
- Micronote 130 - Overall TVS Selection
- Micronote 132 - Aircraft Lightning Protection/DIRECTselect Method
- MicroNote 133: Repetitive Surge on Transient Voltage Suppressors
- Micronote 134 - Zeners and TVSs: Can Either Device Be Used For The Same Applications
- Micronote 135 - Failure Mechanisms For Transient Voltage Suppressors
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