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P1800SD from TECCOR

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P1800SD

Manufacturer: TECCOR, LITTELFUSE

High Surge Current (D-rated) SIDACtor Device

Partnumber Manufacturer Quantity Availability
P1800SD TECCOR, LITTELFUSE 141000 In Stock

Description and Introduction

High Surge Current (D-rated) SIDACtor Device **Introduction to the P1800SD Thyristor from LITTELFUSE**  

The P1800SD is a high-performance silicon-controlled rectifier (SCR) from LITTELFUSE, designed for demanding surge protection and power control applications. As a member of the SIDACtor® family, this thyristor offers robust overvoltage protection with a high surge current capability, making it ideal for safeguarding sensitive electronic circuits against transient voltage events.  

Featuring a low clamping voltage and fast response time, the P1800SD ensures reliable performance in industrial, telecommunications, and power supply systems. Its bidirectional operation allows it to handle both positive and negative voltage transients, enhancing versatility in circuit design. With a high surge current rating, it provides durable protection against lightning strikes, inductive load switching, and other high-energy disturbances.  

Engineers favor the P1800SD for its compact TO-220AB package, which simplifies thermal management and integration into existing designs. Its rugged construction ensures long-term stability, even in harsh environments. Whether used in surge protection devices (SPDs) or power conditioning systems, the P1800SD delivers dependable overvoltage mitigation while maintaining system integrity.  

For applications requiring robust transient voltage suppression, the P1800SD stands as a trusted solution, combining high surge capacity with precise protection characteristics.

Application Scenarios & Design Considerations

High Surge Current (D-rated) SIDACtor Device

Alternative Part Number

  • SDP1800 --: Littelfuse (which acquired Teccor) offers the SDP series as a direct functional equivalent to the P1800SD Sidac, with similar breakover voltage and package.
  • K1800S --: Shindengen K series Sidac provides comparable breakover voltage and current ratings, suitable as a cross-reference for the P1800SD.
  • BS08D --: STMicroelectronics BS08D is a bidirectional trigger diode (Sidac) with similar voltage characteristics, usable as an alternative with design verification.
  • P3100SC --: Same SIDACtor series with similar DO-214AA package and comparable breakover voltage, widely used as a direct substitute in protection circuits.
  • TISP61089B --: Equivalent thyristor surge protector from Bourns with similar voltage and current ratings, suitable drop-in replacement for telecom/surge protection.
  • P1800SC --: Same P-series SIDACtor family with matching breakover voltage but different package variant, offering similar electrical performance.

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