K1200E70RP2

Overview

The Littelfuse K1200E70RP2 is a standard bidirectional SIDAC from the Kxxxzy series, housed in a TO-92 package. It functions as a silicon bilateral voltage-triggered switch with glass-passivated junctions. The device exhibits a breakover voltage range of 110V to 125V and a repetitive peak off-state voltage of 90V. Electrical characteristics include an on-state RMS current of 1A at 50/60Hz, a dynamic holding current between 10mA and 150mA, and a peak non-repetitive surge current of 20A for a single cycle at 60Hz. Thermal resistance from junction to ambient is 95°C/W.

Feature Summary

• Silicon bilateral voltage triggered switch utilizing glass-passivated junction technology
• AC circuit oriented schematic symbol design
• RoHS compliant construction

Applications

• High voltage power supplies
• Natural gas igniters
• High-pressure Sodium lamps
• Xenon flash ignition

Procurement Notes

Verify the specific ordering suffix RP2 confirms reel packaging containing 2000 units per manufacturer specifications. Confirm compliance with RoHS directives and REACH SVHC requirements prior to integration. Ensure the component matches the exact Littelfuse part number to guarantee correct electrical parameters and physical dimensions for the intended application.

Selection Notes

Select this component when a trigger voltage between 110V and 125V is required for AC circuits. The TO-92 package suits through-hole mounting applications. Verify that the system's operating current remains below the 1A RMS limit and that transient voltages do not exceed the 90V repetitive peak off-state rating to ensure reliable operation within the specified temperature range.

Part Context

This component belongs to the Littelfuse Kxxxzy Standard Bidirectional SIDAC family. The 'K' prefix identifies it as a SIDAC, while '1200' indicates the specific voltage class. The 'E' denotes the TO-92 package type, and '70' specifies the lead form configuration. This series provides rugged performance suitable for harsh environments requiring high-voltage triggering capabilities.

Replacement Considerations

Compatible substitutes within the same series include K1200E70AP (Ammo Pack) or K1200E70RP3 (Reel). Other voltage variants such as K1100E70 or K1300E70 may be used if the trigger voltage requirements differ. Ensure any replacement maintains the TO-92 package and identical electrical ratings.