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Product Detailed Parameters
- Description：DIODE STANDARD 250V 200MA DO35
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：250 V
- Current - Average Rectified (Io)：200mA
- Voltage - Forward (Vf) (Max) @ If：1.25 V @ 200 mA
- Speed：Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr)：50 ns
- Current - Reverse Leakage @ Vr：100 nA @ 200 V
- Capacitance @ Vr, F：5pF @ 0V, 1MHz
- Mounting Type：Through Hole
- Package / Case：DO-204AH, DO-35, Axial
- Supplier Device Package：DO-35
- Operating Temperature - Junction：175°C (Max)
- Grade：-
- Qualification：-
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Overview
The BAV21-T50R is a single silicon switching diode manufactured by Fairchild Semiconductor, now under onsemi. It features a DO-35 axial leaded package designed for through-hole mounting. Key electrical specifications include a maximum repetitive peak reverse voltage of 250 V and an average forward rectified current of 200 mA. The device exhibits a typical reverse recovery time of 50 ns and a maximum forward voltage drop of 1.25 V at rated current. It supports a maximum surge current of 4 A and operates within a junction temperature range of -65°C to +175°C.
Feature Summary
- High voltage capability suitable for general-purpose switching applications
- Fast reverse recovery characteristics for efficient signal processing
- Robust thermal performance with extended operating temperature range
Applications
- General purpose signal switching circuits
- Voltage clamping and protection stages
- Logic level shifting interfaces
Procurement Notes
Verify component authenticity carefully as the BAV21 series has been discontinued by the original manufacturer. Check for End-of-Life notices or obsolescence schedules from onsemi. Ensure replacement sources provide valid traceability documentation. Confirm that the specific suffix matches the required packaging format. Validate RoHS compliance status against current regulatory requirements before integration into new designs.
Selection Notes
Select this component only if legacy compatibility with existing schematics is mandatory. Evaluate alternative high-voltage switching diodes with active lifecycle status for new projects. Consider surface-mount equivalents if board space constraints exist. Verify that the 250V rating aligns with system transient voltages. Assess supply chain stability given the discontinuation status of the original Fairchild production line.
Part Context
The BAV21 belongs to the family of small-signal switching diodes originally developed by Fairchild Semiconductor. The product line has transitioned to onsemi following corporate acquisitions. The T50R suffix typically denotes tape-and-reel packaging variants, though bulk options also exist. This component represents a standard industry solution for discrete rectification tasks requiring moderate speed and high voltage blocking capabilities in axial packages.
Replacement Considerations
Public confirmed substitute part numbers are not explicitly listed in the provided source material. Consult official onsemi cross-reference guides for verified alternatives.
