BYW97 - Rugged Glass Passivated Diode

Overview

The BYW97 is a high-performance diode designed for rugged applications, featuring a glass passivated construction and hermetically sealed package. Engineered with a high-temperature alloyed process, this diode offers exceptional reliability and fatigue-free operation due to matched thermal expansion coefficients. Its robust design makes it suitable for demanding environments where durability and consistent performance are critical.

Features

• Glass Passivated: Ensures superior protection against environmental factors, enhancing long-term reliability.
• Hermetically Sealed: Prevents moisture and contaminant ingress, making it ideal for harsh conditions.
• High Maximum Operating Temperature: Capable of functioning efficiently in elevated temperature environments.
• Fatigue-Free Construction: Matched thermal expansion coefficients eliminate mechanical stress over thermal cycles.
• High Surge Current Capability: Withstands transient overload conditions without degradation.
• Low Forward Voltage Drop: Enhances efficiency by minimizing power losses.
• Fast Switching Speed: Suitable for high-frequency applications.

Applications

The BYW97 diode is versatile and finds use in a wide range of applications, particularly where ruggedness and reliability are paramount. Key application areas include:

• Power Supplies: Used in rectification circuits for AC-DC conversion.
• Industrial Equipment: Suitable for motor drives, welding machines, and heavy machinery.
• Automotive Systems: Employed in alternators, voltage regulators, and other high-stress environments.
• Telecommunications: Provides surge protection and rectification in communication infrastructure.
• Renewable Energy: Used in solar inverters and wind power systems for efficient energy conversion.
• Defense and Aerospace: Ideal for mission-critical systems requiring high reliability.

Electrical Characteristics

The following table summarizes the key electrical specifications of the BYW97 diode under standard operating conditions (unless otherwise noted):

Absolute Maximum Ratings

• Maximum Repetitive Reverse Voltage (V_RRM): 200V
• Maximum RMS Voltage (V_RMS): 140V
• Maximum DC Blocking Voltage (V_DC): 200V
• Maximum Forward Surge Current (I_FSM): 50A (non-repetitive)
• Maximum Average Forward Current (I_F(AV)): 2A
• Operating Junction Temperature Range (T_J): -65°C to +175°C
• Storage Temperature Range (T_STG): -65°C to +175°C

Typical Electrical Characteristics

• Forward Voltage Drop (V_F): 1.1V at I_F = 2A
• Reverse Leakage Current (I_R): 5µA at V_R = 200V
• Junction Capacitance (C_J): 15pF at V_R = 0V, f = 1MHz
• Reverse Recovery Time (t_rr): 50ns

Package Information

The BYW97 diode is housed in a robust, industry-standard package designed for durability and ease of integration. Below are the key package details:

Mechanical Specifications

• Package Type: DO-41 (Glass Passivated)
• Dimensions: 4.3mm (Length) x 2.7mm (Diameter)
• Lead Material: High-temperature alloy
• Weight: Approximately 0.35 grams

Thermal Characteristics

• Thermal Resistance (R_θJA): 50°C/W
• Mounting Torque: 0.5 N·m maximum

Marking and Identification

The BYW97 diode is marked with its part number and batch code for traceability. The cathode end is typically indicated by a band or other marking for proper orientation during assembly.

Reliability and Compliance

The BYW97 diode adheres to stringent quality and reliability standards, ensuring consistent performance in critical applications. Key compliance and reliability data include:

• MIL-STD-750: Compliant with military standards for environmental and mechanical stress testing.
• RoHS Compliance: Meets Restriction of Hazardous Substances directives.
• ESD Protection: Robust against electrostatic discharge events.

Conclusion

The BYW97 diode stands out as a rugged, high-reliability component designed for demanding applications. Its glass passivated construction, hermetically sealed package, and excellent electrical characteristics make it a preferred choice for industries requiring durable and efficient rectification solutions. Whether in industrial, automotive, or aerospace applications, the BYW97 delivers consistent performance under extreme conditions.