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Product Detailed Parameters
- Description：SURGE SUPP TBU 50MA 500VIMP SMD
- Series：TBU®
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR)
- Voltage - Clamping：500V
- Technology：Internal Switch
- Number of Circuits：1
- Applications：General Purpose
- Mounting Type：Surface Mount
- Package / Case：2-VDFN Exposed Pad
- Supplier Device Package：2-DFN (2.5x 5)
- Grade：-
- Qualification：-
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Overview
The TBU-KE050-050-WH is a board-mount surge protector manufactured by Bourns. It is a single unidirectional TBU device designed for overcurrent and overvoltage protection. The component features SMD/SMT termination and utilizes a DFN package. Electrical ratings include a voltage rating of 250 V and a current rating of 50 mA. Operating temperature ranges from -40 C to +85 C, with a maximum storage or junction temperature up to 125 °C. The unit weighs 22 mg.
Feature Summary
- Provides integrated overcurrent and overvoltage protection in a compact surface-mount form factor.
- Functions as a high-speed protector for circuit safeguarding.
Applications
- General circuit protection requiring board-mounted surge suppression
- Protection for low-current electronic interfaces
Procurement Notes
This specific part number is listed as discontinued by the manufacturer. Verification of availability through authorized distributors or alternative sourcing channels is required before procurement planning. Check for active stock status and potential obsolescence notices directly with suppliers to ensure supply chain continuity for existing designs.
Selection Notes
Engineers should evaluate the 50 mA current rating and 250 V voltage limit against their specific circuit requirements. Consider the DFN package dimensions for PCB layout constraints. Since the device is discontinued, assess long-term supply risks and verify if newer generations within the TBU-KE series offer equivalent performance characteristics for new designs.
Part Context
The TBU-KE050-050-WH belongs to the TBU-KE series of high-speed protectors from Bourns. This series focuses on providing robust protection against transient events in sensitive electronics. The component represents a specialized solution for applications needing combined overcurrent and overvoltage handling in a small footprint.
Replacement Considerations
As the TBU-KE050-050-WH is discontinued, consult Bourns official documentation for recommended substitute part numbers. Verify that any replacement maintains compatibility with the original design's electrical parameters and physical mounting requirements.
