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Product Detailed Parameters
- Description：DIODE AVALANCHE 800V 3A SOD64
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Technology：Avalanche
- Voltage - DC Reverse (Vr) (Max)：800 V
- Current - Average Rectified (Io)：3A
- Voltage - Forward (Vf) (Max) @ If：1 V @ 3 A
- Speed：Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：7.5 µs
- Current - Reverse Leakage @ Vr：1 µA @ 800 V
- Capacitance @ Vr, F：60pF @ 4V, 1MHz
- Mounting Type：Through Hole
- Package / Case：SOD-64, Axial
- Supplier Device Package：SOD-64
- Operating Temperature - Junction：-55°C ~ 175°C
- Grade：-
- Qualification：-
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Overview
The BYW85TR is a standard avalanche sinterglass diode from Vishay Semiconductors, part of the BYW82-BYW86 series. It features an 800 V repetitive peak reverse voltage and a 3 A average forward current rating in an SOD-64 package. The device exhibits controlled avalanche characteristics with a breakdown voltage up to 1600 V at 100 μA. Electrical parameters include a maximum forward voltage of 1 V at 3 A and a typical reverse recovery time of 7.5 μs under specified test conditions.
Feature Summary
- Hermetically sealed glass passivated junction for environmental protection
- Controlled avalanche characteristics for robustness against transient energy
- High surge current loading capability for handling inductive load switching
Applications
- General purpose rectification
- Inductive load switching applications
- Freewheeling circuits
Procurement Notes
Verify the specific ordering code BYW85TR corresponds to the tape and reel packaging configuration containing 2500 units per 10-inch reel. Confirm that the component meets AEC-Q101 qualification requirements if automotive compliance is necessary for the target application environment.
Selection Notes
Select this component when an 800 V blocking voltage and 3 A continuous current are required in a compact axial leaded form factor. Consider the thermal resistance values relative to the expected ambient temperature and PCB spacing to ensure the junction temperature remains within the -55 °C to +175 °C operating range during operation.
Part Context
This component belongs to the BYW82 through BYW86 family of standard avalanche sinterglass diodes manufactured by Vishay Semiconductors. All variants share identical physical dimensions and electrical characteristics except for the rated repetitive peak reverse voltage, which ranges from 200 V to 1000 V across the series.
Replacement Considerations
Direct substitutes within the same Vishay series include BYW82, BYW83, BYW84, and BYW86, provided their respective voltage ratings meet or exceed the circuit requirements. Ensure the replacement maintains the SOD-64 package and axial lead configuration for mechanical compatibility.
FAQ
What is the maximum junction temperature for the BYW85TR?
The maximum junction and storage temperature range for the BYW85TR is -55 °C to +175 °C.
How is the cathode polarity identified on the device?
The cathode end is denoted by a color band on the glass passivated package.
