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1N459A_L99Z
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Product Detailed Parameters
- Description：DIODE STANDARD 200V 500MA DO35
- Series：-
- Mfr：onsemi
- Package：Bulk
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：200 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 nA @ 175 V
- Capacitance @ Vr, F：6pF @ 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 1N459A_L99Z is a silicon Zener diode manufactured by onsemi. It features a nominal Zener voltage of 7.5V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 0.5W at ambient temperatures up to 75°C, derating linearly above this threshold. It utilizes a DO-35 glass axial leaded package and is designed for operation within a junction temperature range of -65°C to +200°C. The component includes hermetic sealing capabilities suitable for demanding environments.
Feature Summary
- Provides stable voltage regulation in the low-voltage range using avalanche breakdown characteristics.
- Constructed with a hermetically sealed glass encapsulation to ensure environmental durability.
- Engineered for high thermal stability with an extended operating junction temperature capability.
Applications
- Voltage reference circuits requiring precise low-voltage standards.
- Overvoltage protection stages in sensitive electronic signal paths.
- Clamping applications in switching power supply output stages.
Procurement Notes
Verify the specific suffix L99Z against the official onsemi datasheet to confirm packaging and tape-and-reel specifications. Ensure the procurement channel provides traceability documentation consistent with aerospace or industrial grade requirements if applicable. Cross-reference the manufacturer part number to distinguish between standard commercial and qualified variants.
Selection Notes
Select this component when a 7.5V regulation point is required with moderate current handling capabilities. Consider the thermal resistance and package size constraints relative to the available PCB space. Evaluate the dynamic impedance characteristics against the noise sensitivity of the target application circuitry.
Part Context
This component belongs to the standard 1N459 series of small-signal Zener diodes produced by onsemi. It serves as a fundamental discrete semiconductor element for voltage control tasks. The device represents a legacy industry-standard form factor adapted for modern surface mount or through-hole assembly processes depending on the specific suffix configuration.
Replacement Considerations
Consult the onsemi replacement guide for direct equivalents. Verify pinout compatibility and thermal performance metrics before substituting with generic alternatives from other manufacturers.
