SMT 1,000 W, TVS Diodes support high-reliability functions.

Press Release Summary:

Catering to aircraft electrification, reliability, and fuel efficiency, Powermite1® MUPT transient voltage suppression (TVS) diode products protect electrical systems by going into avalanche breakdown after strike, clamping transient voltage, and routing current to ground. These single-channel, 2 mm² x 1 mm devices, available in unidirectional and bidirectional configurations, are rated from 5–48 V, withstand 10/1,000 µsec pulse, and offer peak pulse power rating of 150 W at 10/1,000 µsec.

Original Press Release:

Microsemi Launches Powermite1 MUPT Series Offering 1,000-Watt, Surface Mount, Single Channel Transient Voltage Suppression Diodes

Capitalizing on Aircraft Electrification Growth Trends, New Devices are Ideal for High Reliability Functions in Avionics, Ruggedized Radio, Test and Communications Equipment

ALISO VIEJO, Calif. – Microsemi Corporation (Nasdaq: MSCC), a leading provider of semiconductor solutions differentiated by power, security, reliability and performance, today announced a unique new series of patented Powermite1® MUPT transient voltage suppression (TVS) diode products. The new series caters to market trends toward increased aircraft electrification, greater reliability and higher fuel efficiency, which are on the rise. This is consequently driving the need for increasingly capable, lighter and smaller TVS solutions that provide superior protection against transient overvoltage occurrences.

Microsemi's new TVS diodes are highly compact, 1,000-watt (W), surface mount, single channel devices featuring superior thermal and power handling capabilities, and provide higher reliability functions in avionics applications such as engine control units and actuator controls, power distribution, environmental control, communications and instrumentation systems. Additional applications include circuit protection for ruggedized handheld radios, GPS, communications test equipment, industrial logging equipment, power supplies, and marine and aircraft electrical systems.

"With increased aircraft electrification continuing to increase, our new devices are ideal to capitalize on this market growth. From a global demand perspective, we estimate the overall market for protection devices is likely to reach $1 billion by 2018," said Christophe Warin, senior director of strategic marketing for Microsemi's Power Discrete and Modules Group. "As a leader in high-reliability solutions, Microsemi continues to execute on a full range of innovative product developments to support the stringent and evolving needs of this industry."

Leveraging the company's 50-year heritage in high-reliability TVS technology, Microsemi's TVS diodes provide aircraft and other electrical systems with critical protection by going into avalanche breakdown within no more than a few nanoseconds after a strike, clamping the transient voltage and routing its current to the ground. The new Powermite1 MUPT series also features oxide-passivated chips with high-temperature solder bonds for high surge capability and negligible electrical degradation under repeated surge conditions. Both unidirectional and bidirectional configurations are available.

Measuring less than 1 mm high and 2 mm square, the new devices' Powermite packaging provides a dramatic one-third reduction in size compared with two-leaded devices in conventional surface mount assembly (SMA) packages. Compared with similarly-sized SOT-23 devices, Powermite delivers superior thermal and power handling capability. In addition to its size advantages, the Powermite package includes a fully metallic bottom (anode) side that eliminates the possibility of solder flux entrapment at assembly, while a unique locking tab design serves as an integral heat sink. Its innovative design makes this device fully compatible for use with automatic insertion equipment.

The Powermite1 MUPT series is 100 percent surge tested and can be supplied in various 'screened' versions (M, MA, MXL and MX) that have been exposed to levels of additional screening tests (similar to those applied to JANTX military-grade devices) to improve reliability. The devices are offered in voltages ranging from 5 volts (V) to 48V and comply with Moisture classification Level 1 with no dry pack required per IPC/JEDEC J-STD-020B. Devices are rated to withstand a 10/1,000 microsecond pulse, and the peak pulse power rating is 150W at 10/1,000 microseconds. The 1,000W rating is for an 8/20us microsecond pulse.

Microsemi: Continued Leadership in TVS Devices

Microsemi offers the industry's broadest portfolio of TVS devices for applications within the avionics, defense, industrial, automotive and communications markets. Microsemi's TVS devices have been specifically deployed to protect engine control, actuator control, environmental control, power distribution, communications and instrumentation subsystems across all major current commercial airframes as well as military airframes in use worldwide.

Additional features

--  Standoff voltages: 5V (with maximum clamping voltage of 9.5V) to 48V (with maximum clamping voltage of 84.3V)

--  Both unidirectional and bidirectional polarities:

-  Anode to case bottom (MUPT5e3 through MUPT48e3

-  Bidirectional (MUPTB5e3 through MUPTB48e3)

--  Clamping time of less than 100 picoseconds for unidirectional and 5 nanoseconds for bidirectional

--  Availability in both Restriction of Hazardous Substances (RoHS) and non-RoHS compliant versions.


Microsemi's Powermite1 MUPT series of TVS diodes are available for all screening levels. Datasheets are available at For more information, contact Microsemi at

About Microsemi's Portfolio for Defense and Commercial Aviation

In addition to TVS diodes, Microsemi's defense and commercial aviation product portfolio includes secure and rugged solid-state-drives (SSDs), secure field programmable gate arrays (FPGAs) and system-on-chips (SoCs), security software, anti-tamper solutions, FIPS-197 certified 1 Gigabit Ethernet and 10 Gigabit Ethernet PHYs with AES-256 MACsec support (IEEE 802.1AEbw-2013), radio frequency (RF) transceivers, embedded memory, monolithic microwave integrated circuits (MMICs), power switching devices, high voltage diodes, high voltage transistors, Zener voltage regulators, NPN and PNP transistors and signal diodes. For more information about Microsemi's portfolio for defense applications, visit For more information about Microsemi's portfolio for commercial aviation, visit

About Microsemi's Circuit Protection Products

Microsemi's portfolio for circuit protection fits a variety of defense, aerospace, industrial, medical and communications applications, and includes EKG/ECG monitor protection, implantable medical protection, smart circuit breakers, smart e-fuse devices, thyristors, thyristor modules and TVSs. For more information, visit

About Microsemi

Microsemi Corporation (Nasdaq: MSCC) offers a comprehensive portfolio of semiconductor and system solutions for communications, defense & security, aerospace and industrial markets. Products include high-performance and radiation-hardened analog mixed-signal integrated circuits, FPGAs, SoCs and ASICs; power management products; timing and synchronization devices and precise time solutions, setting the world's standard for time; voice processing devices; RF solutions; discrete components; enterprise storage and communication solutions, security technologies and scalable anti-tamper products; Ethernet solutions; Power-over-Ethernet ICs and midspans; as well as custom design capabilities and services. Microsemi is headquartered in Aliso Viejo, Calif., and has approximately 4,800 employees globally. Learn more at

Microsemi and the Microsemi logo are registered trademarks or service marks of Microsemi Corporation and/or its affiliates. Third-party trademarks and service marks mentioned herein are the property of their respective owners.


Farhad Mafie

VP Worldwide Product Marketing


Beth P. Quezada

Director, Corporate Communications



Web Site:

More from Fluid & Gas Flow Equipment

All Topics