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Product Detailed Parameters
- Description：DIODE AVALANCHE 1200V 2A SOD57
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Box (TB)
- Technology：Avalanche
- Voltage - DC Reverse (Vr) (Max)：1200 V
- Current - Average Rectified (Io)：2A
- Voltage - Forward (Vf) (Max) @ If：1.6 V @ 3 A
- Speed：Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：2 µs
- Current - Reverse Leakage @ Vr：3 µA @ 1200 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：SOD-57, Axial
- Supplier Device Package：SOD-57
- Operating Temperature - Junction：140°C (Max)
- Grade：-
- Qualification：-
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Overview
The BY458TAP is a standard avalanche sinterglass diode manufactured by Vishay General Semiconductor - Diodes Division. It features a glass passivated junction and a hermetically sealed SOD-57 package with plated axial leads. The device has a maximum repetitive reverse voltage of 1200 V and an average forward current rating of 2 A. Key electrical characteristics include a maximum forward voltage of 1.6 V at 3 A, a maximum reverse current of 3 μA at 25 °C, and a typical reverse recovery time of 2 μs under specified test conditions.
Feature Summary
- Glass passivated junction for enhanced reliability
- Hermetically sealed SOD-57 package design
- Standard avalanche capability for robust operation
Applications
- High voltage rectification circuits
- Efficiency diode applications in horizontal deflection circuits
Procurement Notes
Verify the specific ordering code BY458TAP to confirm the ammopack tape configuration containing 5000 units per pack. Ensure that the minimum order quantity requirements align with your production needs. Cross-reference the document number 86006 to access the latest official datasheet specifications before finalizing procurement decisions.
Selection Notes
Select this component when a 1200 V reverse voltage rating and 2 A average forward current are required. Consider the SOD-57 axial leaded package for through-hole mounting applications. Evaluate the thermal resistance parameters against your expected ambient temperature and heat dissipation constraints to ensure safe operating junction temperatures.
Part Context
This part belongs to the BY448/BY458 series of standard avalanche sinterglass diodes from Vishay Semiconductors. The series differentiates models primarily by their maximum repetitive reverse voltage ratings, with the BY458 specifically rated for 1200 V. These devices utilize a glass passivation process to ensure long-term stability and performance in demanding electronic environments.
Replacement Considerations
The BY448 serves as a related model within the same series but offers a higher reverse voltage rating of 1500 V. Verify that the lower 1200 V rating of the BY458 meets your circuit's peak inverse voltage requirements if substituting between these two variants.
