Littelfuse Pxxx1DF-1 / Pxxx1DF-1E ThyristorsLittelfuse Pxxx1DF-1 and Pxxx1DF-1E SIDACtor® Protection Thyristors are MS-012 packaged fixed voltage single port series devices designed to protect sensitive SLICs (Subscriber Line Interface Circuits) from damaging overvoltage transients. Littelfuse PxxxDF-1E thyristors are enhanced devices that feature integrated fast switching diodes for positive voltage surges. Both the Pxxx1DF-1 and PxxxDF-1E series provide single port protection using a fixed voltage switching device for negative surges. Positive surges are routed through enhanced switching diodes to a ground reference. These Littelfuse thyristors are pin-to-pin compatible to industry standard programmable SO-8 SLIC protectors.
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