The datasheet from Microsemi’s High Reliability Product Group provides technical details for their robust range of Transient Voltage Suppressors (TVS), specifically the unidirectional and bidirectional devices denoted by part numbers ranging from ML.SKE6.8A thru MISKE400CA. These devices are designed to protect electronic systems from voltage transients caused by surges, electrostatic discharge (ESD), and other harmful voltage spikes.
Key Features
High Reliability and Traceability: The devices are subjected to detailed wafer fabrication and assembly lot traceability. They are compliant with MIL-PRF-19500 standards for electronic devices, assuring high-quality control. Various screening options indicated by M, MA, MX, and MXL prefixes are available to meet different levels of certification and performance.
Powerful Surge Suppression: They are designed to suppress transient voltages up to 1500 watts using a 10/1000 µs waveform and are 100% surge-tested to ensure reliability.
Environmental Compliance: To accommodate environmentally sensitive applications, RoHS Compliant devices are offered with the addition of an “e3” suffix.
Applications and Benefits
The devices cater to several protective applications including switching transients, induced RF interference, and secondary lightning protection across various class levels as detailed by IEC standards, demonstrating versatility in use for different severity levels of surge protection. Their rapid response characteristics make them suitable for ESD and Electrical Fast Transient (EFT) protection as outlined in IEC 61000-4-2 and IEC 61000-4-4 standards respectively.
Maximum Ratings and Mechanical Details
The TVS device’s performance at peak conditions is also highlighted, covering maximum power dissipation, clamping times, operating and storage temperatures, and thermal resistance details. Soldering parameters are provided to prevent damage during board assembly.
On the mechanical side, these TVS devices are encapsulated in a void-free transfer molded thermosetting epoxy body and have a clear marking system for identifying cathode indicators. Their physical and electrical parameters, along with symbol definitions, are succinctly included, useful for engineers when incorporating them into circuit designs.
Packaging options are designed with industry standards in mind, offering both bulk and custom tape-and-reel packaging. This provides flexibility and convenience for large-scale production and integration into existing manufacturing processes.
Conclusion
This datasheet positions Microsemi’s TVS devices as ideal solutions for high-reliability applications requiring robust protection against voltage transients. Their controlled construction, comprehensive screening options, and environmental compliance make them highly versatile across various industries seeking to safeguard electronic systems against surges and ESD events.
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