P500-G120-WHX

Overview

The P500-G120-WHX is a Transient Blocking Unit (TBU) device from the P500-G and P850-G series, functioning as a solid-state protector. It is recognized by UL under File # E315805. The component complies with Telcordia GR-1089 standards for Port Type 2, 4, and ITU-T GR-1089 for Port Type 3 and 5.

Feature Summary

• Provides transient blocking protection using TBU technology
• UL recognized component status
• Compliance with Telcordia and ITU-T industry standards

Applications

• Telecommunications line protection
• Customer premise equipment
• Central office interfaces

Procurement Notes

Verify the specific datasheet for the P500-G series to confirm detailed electrical parameters such as holding current and trip voltage, which are not provided in the general series description. Ensure the application environment matches the Port Type 2, 3, 4, or 5 requirements specified in the compliance documentation. Confirm that the UL recognition file E315805 covers the intended end-use product certification needs.

Selection Notes

Select this component when solid-state transient protection is required for telecommunications lines. The choice depends on the specific port type compatibility (Type 2, 3, 4, or 5) mandated by the system design standards. Verify that the thermal and electrical characteristics align with the Telcordia GR-1089 and ITU-T GR-1089 guidelines for the target infrastructure.

Part Context

This part belongs to the Bourns P500-G and P850-G series of Transient Blocking Units. These devices are designed to protect sensitive electronics from voltage transients on communication lines. The series is widely used in telecom infrastructure where robust, resettable protection is necessary without the mechanical wear associated with traditional fuses.

Replacement Considerations

No public substitute part numbers are documented in the available source material. Designers should consult the official Bourns datasheet for potential cross-references within the P500-G or P850-G families.