SP724 Series - SCR/Diode Array for ESD and Overvoltage Protection

Series: SP724
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TVS Diode Array SP724 Image
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The SP724 is a quad array of transient voltage clamping circuits designed to suppress ESD and other transient over-voltage events. The SP724 is used to help protect sensitive digital or analog input circuits on data, signal, or control lines operating on power supplies up to 20VDC. The SP724 is comprised of bipolar SCR/diode structures to protect up to four independent lines by clamping transients of either polarity to the power supply rails. The SP724 offers very low leakage (1nA Typical) and low input capacitance (3pF Typical). Additionally, the SP724 is rated to withstand the IEC 61000-4-2 ESD specification for both contact and air discharge methods to level 4. The SP724 is connected to the sensitive input line and its associated power supply lines. Clamping action occurs during the transient pulse, turning on the diode and fast triggering SCR structures when the voltage on the input line exceeds one VBE threshold above the V+ supply (or one VBE threshold below the V- supply). Therefore, the SP724 operation is unaffected by poor power supply regulation or voltage fluctuations within its operating range.

Access specifications, certifications, check availability and order parts below

Catalog #Standoff
Voltage
(V)		ILeak
(μA)		ESD Contact
(kV)		ESD Air
(kV)		Lightning
Immunity
(8x20μs)
(A)		CI/OTYP
(pF)		PolarityChannelsPackageCompare
SP724AHT
Obsolete: 2009 -12-31		200.0181533Bidirectional4SOT23-6L
SP724AHTP
Obsolete: 2008 -12-31		200.0181533Bidirectional4SOT23-6L
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
SP724AHTP 4 CH DIODE ARRAY SOT23-6(TAPE&REEL) RoHS No 02/01/2006 PbFree No 02/01/2006
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pdficon ESD and Transient Protection Using the SP720 Application Note

This application note discusses ESD and transient protection using the SP720. For a given level of voltage or power there is a defined degree of protection compatible to that need. For the SP720 the protection circuits are designed to clamp over-voltage within a range of peak current that will substantially improve the survival input expectancy of average monolithic silicon circuits used for small signal and digital processing applications.
pdficon AN9734 IEC Electromagnetic Compatibility Standards for Industrial Process Measurement and Control Equipment

This application note discusses the purpose of the International Electrotechnical Commission lEC 61000-4 (previously known as lEC-801) standard which established a common reference for evaluating the performance of industrial-process measurement and control instrumentation when exposed to electric or electromagnetic interference.
pdficon SP720 SP721 and SP723 Turn-On and Turn-Off Characteristics Application Note

The purpose of this application note is to focus on customer concerns related to the fast switching characteristics of the SP720 SP721 and SP723 family of protection ICs during an ESD discharge. The SCR cell structures of this family were first introduced for ESD protection of sensitive ICs that were subject to substantially more severe conditions than normal Human Body Model stress.
pdficon TVS Diode Array SP724 Lead-Free/Green Datasheet

The SP724 is a quad array of transient voltage clamping circuits designed to suppress ESD and other transient overvoltage events...