Single Line TVS Diode ESD, EFT & Lightning Protection


Union Semiconductor

MFG Part #:


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Short Lead Time
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Unit Price:$0.10
Minumum Qty: 3000

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Product Information

The UM5055 ESD protection diode is designed to replace multilayer varistors (MLVs) in portable applications such as cell phones, notebook computers, and PDA’s. It features large cross-sectional area junctions for conducting high transient currents, offers desirable electrical characteristics for board level protection, such as fast response time, lower operating voltage, lower clamping voltage and no device degradation when compared to MLVs. The UM5055 ESD protection diode protects sensitive semiconductor components from damage or upset due to electrostatic discharge (ESD) and other voltage induced transient events. The UM5055 is available in a SOD523package with working voltages of 5 volt. It gives designer the flexibility to protect one unidirectional line in applications where arrays are not practical. Additionally, it may be “sprinkled” around the board in applications where board space is at a premium. It may be used to meet the ESD immunity requirements of IEC 61000-4-2, Level 4 (±15kV air, ±8kV contact discharge).


Transient protection for data & power lines to IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
Small package for use in portable electronics
Suitable replacement for MLVs in ESD protection applications
Protect one I/O or power line
Low clamping voltage
Stand off voltages: 5V
Low leakage current Solid-state silicon-avalanche technology



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