ESD Suppression Technologies
Littelfuse offers three distinct product families that can be used for ESD suppression. These include the electroceramic MLVs (MultiLayer Varistors), silicon SPA™ TVS Diode Arrays and polymer-based PulseGuard® ESD suppressor products. Each family has attributes that differentiate it from the other technologies, but, in general, they are all effective solutions for ESD suppression.
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Littelfuse multilayer varistors (MLVs) provide board level protection against ESD, EFT, and other transients that occur on power supply, signal and control lines. Single and multiple line devices are available in popular industry standard outlines with a variety of termination options including lead-free Nickel Barrier for improved soldering characteristics. MLVs can also be chosen for low band-pass filtering characteristics so that they provide ESD protection and filter high frequency noise from the circuit.
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PulseGuard ESD Suppressors help protect sensitive electronic equipment against electrostatic discharge (ESD). They supplement the on-chip protection of integrated circuitry and are best suited for low voltage, high-speed applications where low capacitance is important. Data ports utilizing such high-speed protocols as USB 2.0, IEEE1394, HDMI and DVI can benefit from this new technology. PulseGuard suppressors use polymer composite materials to suppress fast-rising ESD transients (as specified in IEC 61000-4-2 and MIL-STD-883E), while adding virtually no capacitance to the circuit.
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The documents below explain each ESD suppression technology in further detail.
- SPA™ TVS Diode Arrays
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- Multilayer Varistors (MLVs)
Littelfuse multilayer varistors (MLVs) provide board level protection against ESD, EFT, and other transients that occur on power supply, signal and control lines. Single and multiple line devices are available in popular industry standard outlines with a variety of termination options including lead-free Nickel Barrier for improved soldering characteristics. MLVs can also be chosen for low band-pass filtering characteristics so that they provide ESD protection and filter high frequency noise from the circuit.
Click for product selection
- PulseGuard® Polymer ESD Suppressors
PulseGuard ESD Suppressors help protect sensitive electronic equipment against electrostatic discharge (ESD). They supplement the on-chip protection of integrated circuitry and are best suited for low voltage, high-speed applications where low capacitance is important. Data ports utilizing such high-speed protocols as USB 2.0, IEEE1394, HDMI and DVI can benefit from this new technology. PulseGuard suppressors use polymer composite materials to suppress fast-rising ESD transients (as specified in IEC 61000-4-2 and MIL-STD-883E), while adding virtually no capacitance to the circuit.
Click for product selection
The documents below explain each ESD suppression technology in further detail.
Selecting an Appropriate ESD Device
Littelfuse ESD Suppression Product Selection Brochure (EC333)
This brochure reviews the Littelfuse ESD suppression portfolio and highlights the key selection parameters an engineer must address while designing-in ESD suppression products.
EC622A - ESD Suppression Technologies
This technical brief discusses the three distinct Littelfuse product families that can be used for ESD suppression. These include the electroceramic MLV (MultiLayer Varistor), silicon (SP72x and SP050x) and polymer-based PulseGuard™ suppressor products.
