S2055NTP

Scrs Overview

The Littelfuse S2055NTP is a standard Silicon Controlled Rectifier (SCR) from the Teccor Sxx55x series, designed for phase control applications. It features a rated repetitive off-state voltage (VDRM) of 200 V and an on-state RMS current (It RMS) of 55 A. The device exhibits a forward voltage drop (Vf) of 1.8 V at rated current. Gate triggering requirements include a maximum gate trigger voltage (Vgt) of 1.5 V and a gate trigger current (Igt) ranging from 5 mA to 40 mA. The component operates within a temperature range of -40°C to +125°C and utilizes a TO-220AB through-hole package.

Scrs Feature Summary

• Designed as an excellent unidirectional switch for phase control applications such as heating and motor speed controls.
• Utilizes glass-passivated junctions for enhanced reliability and durability under electrical stress.
• Capable of being triggered with low gate current and voltage, facilitating efficient drive circuit design.

Scrs Applications

• Phase control circuits for resistive heating systems.
• Motor speed control mechanisms in industrial equipment.
• Lighting dimmer applications requiring robust switching capabilities.

Scrs Procurement Notes

Verify the specific suffix NTP against official Littelfuse documentation to confirm pinout configuration and packaging type. Ensure compatibility with existing thermal management solutions given the 55 A RMS rating. Cross-reference datasheet revisions to confirm RoHS compliance status and any recent parameter updates before finalizing procurement specifications.

Scrs Selection Notes

Select this component when a 200 V blocking voltage and 55 A continuous current capacity are required in a through-hole format. Compare gate sensitivity requirements against the specified 5 mA to 40 mA Igt range to ensure adequate drive signal strength. Evaluate thermal dissipation needs based on the 1.8 V forward voltage drop at full load conditions.

Scrs Part Context

The S2055NTP belongs to the Littelfuse Teccor Sxx55x series of standard SCRs. This series is characterized by high surge capability and voltage ratings up to 1000 V across different variants. The 'S' prefix typically denotes Silicon Controlled Rectifiers, while '20' indicates the 200 V voltage class, and '55' signifies the 55 A current rating.

Scrs Replacement Considerations

Direct replacements may include other 200 V, 55 A SCRs in TO-220 packages from manufacturers like STMicroelectronics or Vishay. Verify equivalent holding current, latching current, and gate trigger parameters to ensure functional interchangeability in phase control circuits.