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1N458A
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Product Detailed Parameters
- Description：DIODE STANDARD 150V 500MA DO35
- Series：-
- Mfr：onsemi
- Package：Bulk
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：150 V
- Current - Average Rectified (Io)：500mA
- Voltage - Forward (Vf) (Max) @ If：1 V @ 100 mA
- Speed：Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：25 µA @ 125 V
- Capacitance @ Vr, F：-
- 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 1N458A is a silicon small signal switching diode manufactured by onsemi in the DO-35 axial leaded package. It features a repetitive peak reverse voltage of 150 V and an average forward current rating of 500 mA. The device exhibits a maximum forward voltage of 1 V at rated current and a low reverse leakage current of 25 µA. It supports a maximum forward surge current of 4 A and operates within a junction temperature range up to 175 °C, with storage capabilities from -65 °C to +200 °C.
Feature Summary
- High conductance characteristics for efficient signal switching
- Low leakage current performance for improved circuit isolation
- Robust thermal stability with high junction temperature capability
Applications
- General purpose rectification in low power circuits
- Signal clamping and protection applications
- Small signal switching in consumer electronics
Procurement Notes
Verify the specific ordering suffix against the official onsemi datasheet to ensure compatibility with required packaging or testing standards. Confirm that the component meets RoHS and REACH compliance requirements as specified in the manufacturer's documentation before integration into production designs.
Selection Notes
Select this component when a standard silicon switching diode with 150 V reverse voltage and 500 mA continuous current capacity is required. The DO-35 package suits through-hole mounting constraints. Ensure the application does not exceed the 4 A surge current limit or the 175 °C maximum junction temperature during operation.
Part Context
This part belongs to the family of general-purpose small signal diodes designed for reliable performance in discrete semiconductor applications. It serves as a fundamental component for basic rectification and switching tasks where moderate voltage blocking and low leakage are prioritized over high-speed recovery characteristics.
Replacement Considerations
Consult official cross-reference lists for verified equivalents. Generic replacements may differ in leakage current or forward voltage specifications. Verify pinout and package dimensions match the DO-35 form factor before substitution.
