VLR230F

Ptc Resettable Fuses Overview

The Littelfuse VLR230F is a silicon-controlled rectifier (SCR) module designed for efficient switching in low-current circuits. It features sensitive gates allowing direct interfacing with microprocessors and fast turn-off capabilities to reduce commutation failure risk. The device utilizes glass passivated junctions for durability and is compatible with lead-free reflow soldering processes. Available in surface mount and axial pass-through configurations, it operates within blocking voltage ratings of 200 V dc to 600 V dc. Surge capabilities include 15 A, 25 A, and 30 A options, while ampere ratings cover 1 A, 1.5 A, and 2 A. Turnoff times are below 55 µs, ensuring precise control in demanding electronic applications.

Ptc Resettable Fuses Feature Summary

• Sensitive gate design enables direct interfacing with microprocessors using minimal gate current.
• Fast turn-off capabilities reduce the risk of commutation failure in switching operations.
• Glass passivated junctions ensure long-term durability under various operating conditions.
• Compatible with lead-free reflow soldering processes for modern manufacturing requirements.

Ptc Resettable Fuses Applications

• Strobe light triggering systems
• Fluid level sensor controls
• Capacitive-discharge ignition systems

Ptc Resettable Fuses Procurement Notes

Verify the specific package configuration required for your design, as the VLR230F series is available in both surface mount and axial pass-through formats. Confirm that the selected surge and ampere ratings align with your circuit's peak load requirements. Ensure compatibility with lead-free reflow soldering profiles if using surface mount variants. Check for RoHS compliance status relevant to your region's regulatory standards before finalizing procurement.

Ptc Resettable Fuses Selection Notes

Choose the VLR230F variant based on the necessary blocking voltage rating, which ranges from 200 V dc to 600 V dc. Select the appropriate surge capability (15 A, 25 A, or 30 A) and continuous ampere rating (1 A, 1.5 A, or 2 A) to match your application's electrical demands. Consider the package type, either surface mount or axial, depending on your PCB layout constraints. Verify that the sub-55 µs turnoff time meets your system's speed requirements for reliable switching performance.

Ptc Resettable Fuses Part Context

This component belongs to Littelfuse's broader portfolio of silicon-controlled rectifiers and SCR modules. These devices are engineered for precise, efficient switching in low-current circuits. The family includes discrete SCRs and modules optimized for various electronic controls, such as solenoids in ground fault circuit interrupters. The VLR230F specifically addresses applications requiring sensitive gate drive and robust transient handling within compact form factors.

Ptc Resettable Fuses Replacement Considerations

Consult official Littelfuse documentation for confirmed substitute part numbers within the same SCR module family. Ensure any replacement matches the original blocking voltage, surge current, and package type specifications. Generic equivalents may not replicate the specific turnoff times or gate sensitivity characteristics of the VLR230F series.