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1N457A
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Product Detailed Parameters
- Description：DIODE STANDARD 70V 200MA DO35
- Series：-
- Mfr：onsemi
- Package：Bulk
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：70 V
- Current - Average Rectified (Io)：200mA
- Voltage - Forward (Vf) (Max) @ If：1 V @ 100 mA
- Speed：Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：25 nA @ 60 V
- Capacitance @ Vr, F：8pF @ 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 onsemi 1N457A is a small signal switching diode housed in a DO-35 axial lead package. It features a maximum repetitive reverse voltage of 70 V and an average rectified forward current rating of 200 mA. The device supports a non-repetitive peak forward surge current of 4 A with a pulse width of 1.0 s. Electrical characteristics include a forward voltage of 1.0 V at 100 mA and a reverse leakage current of 25 nA at 60 V. Total capacitance is limited to 8.0 pF at 0 V bias. Operating junction temperature reaches 175 °C, with storage temperatures spanning -65 to +200 °C.
Feature Summary
- High conductance design for efficient signal switching
- Low leakage current performance
- Hermetically sealed glass construction
Applications
- General purpose switching circuits
- Signal rectification applications
- Protection against transient voltages
Procurement Notes
Verify the specific ordering suffix to confirm packaging format, as bulk quantities differ from tape and reel options. Ensure compliance with RoHS directives by checking the component marking for lead-free status. Confirm that the DO-35 package dimensions align with the target PCB layout requirements before finalizing procurement decisions.
Selection Notes
Select this component when a hermetically sealed axial lead diode is required for high reliability. The 70 V breakdown voltage suits low-voltage signal processing tasks. Consider the thermal resistance and power dissipation limits for circuit designs involving continuous current loads or elevated ambient temperatures.
Part Context
This part belongs to the 1N457 series of small signal diodes manufactured by onsemi. It serves as a general-purpose switching device suitable for various electronic applications requiring reliable performance. The DO-35 package provides a standard footprint for through-hole mounting technologies commonly used in industrial and consumer electronics.
Replacement Considerations
The 1N457TR variant offers identical electrical specifications but utilizes tape and reel packaging instead of bulk. Verify mechanical compatibility when substituting between different packaging formats within the same product family.
