P850-G200-WHX

Overview

The Bourns P850-G200-WHX is a Transient Blocking Unit (TBU) surge protector designed for telecommunications and data line protection. It integrates two TBU protectors within a compact surface-mount package to block high voltages and currents during abnormal overvoltage events. The device features extremely high-speed performance, opening the circuit when overheating occurs due to excessive voltage. It is RoHS compliant and UL recognized under File # E315805, meeting Telcordia and ITU-T GR-1089 industry standards.

Feature Summary

• Integrates two TBU protectors in a single small package
• Blocks high voltages and currents during transient events
• Opens circuit upon overheating from abnormal overvoltage
• Provides simple, superior circuit protection with minimal PCB area

Applications

• POTS linecards
• VoIP equipment
• Voice and data combo linecards
• ONU and ONT devices
• Gateways
• Cable and DSL modems

Procurement Notes

Verify the specific suffix 'WHX' against the official Bourns datasheet to confirm exact packaging or tape-and-reel specifications, as distributor listings may vary. Ensure compatibility with UL recognition requirements for end-product certification. Confirm that the component meets the required Telcordia and ITU-T GR-1089 standards for your specific application environment before finalizing procurement.

Selection Notes

Select this component for applications requiring robust surge protection in limited space. The dual TBU architecture offers enhanced protection compared to single-unit solutions. Consider the thermal characteristics and the device's ability to open the circuit during fault conditions. Ensure the selected package size fits the PCB layout constraints while maintaining adequate clearance for heat dissipation during normal operation.

Part Context

The P850-G series belongs to Bourns' family of Transient Blocking Units (TBU), which are advanced circuit protection devices. These components are engineered to provide faster response times than traditional fuses or varistors. The series is widely used in telecommunications infrastructure to protect sensitive electronics from lightning strikes and power line surges, ensuring network reliability and equipment safety.

Replacement Considerations

The P850-G200-WH is listed as a former designation for this product line. Verify if the WHX suffix indicates a specific packaging variant rather than a functional change. Consult the Bourns Product Change Notification (PCN) for any updates regarding pinout, footprint, or electrical characteristics that might affect direct replacement in existing designs.