BAT83 - Planar Schottky Barrier Diode

Overview

The BAT83 is a high-performance planar Schottky barrier diode designed for applications requiring low forward voltage and high breakdown voltage characteristics. Encapsulated in a hermetically-sealed subminiature SOD68 (DO-34) glass package, this diode is optimized for reliability and efficiency in high-frequency and fast-switching circuits. The integrated guard ring protection ensures enhanced durability against electrostatic discharges (ESD), making it suitable for sensitive electronic environments.

With its compact SOD68 package, the BAT83 is ideal for mounting on a standard 5.08 mm pitch, providing flexibility in PCB design while maintaining robust mechanical and electrical performance. Its hermetically-sealed construction ensures long-term stability even in harsh operating conditions.

Features

• Low Forward Voltage: Minimizes power loss and improves efficiency in switching applications.
• High Breakdown Voltage: Ensures reliable operation in high-voltage circuits.
• Guard Ring Protection: Provides built-in ESD protection, enhancing device longevity.
• Hermetically-Sealed Package: SOD68 (DO-34) leaded glass encapsulation offers superior environmental resistance.
• Compact and Lightweight: Suitable for space-constrained applications.
• High-Frequency Performance: Optimized for fast-switching and RF applications.

Applications

The BAT83 Schottky diode is widely used in various electronic circuits where fast switching and low power loss are critical. Key application areas include:

• Power Supply Circuits: Used in rectification and freewheeling diodes for DC-DC converters and SMPS.
• RF and Microwave Circuits: Suitable for mixers, detectors, and signal demodulation due to its high-frequency response.
• Signal Clipping and Clamping: Protects sensitive components from voltage spikes.
• Reverse Polarity Protection: Prevents damage in battery-operated devices.
• Automotive Electronics: Used in voltage regulation and transient suppression circuits.
• Consumer Electronics: Found in high-efficiency power management systems.

Electrical Characteristics

The following table summarizes the key electrical parameters of the BAT83 Schottky diode under standard operating conditions (unless otherwise specified):

Absolute Maximum Ratings

• Peak Repetitive Reverse Voltage (V_RRM): 30 V
• Average Rectified Forward Current (I_F(AV)): 200 mA
• Non-Repetitive Peak Forward Surge Current (I_FSM): 4 A (t_p = 1 s)
• Operating Junction Temperature (T_j): -65°C to +150°C
• Storage Temperature (T_stg): -65°C to +175°C

Typical Electrical Parameters

• Forward Voltage Drop (V_F): 0.55 V (at I_F = 10 mA)
• Reverse Leakage Current (I_R): 5 µA (at V_R = 20 V)
• Total Capacitance (C_T): 2 pF (at V_R = 0 V, f = 1 MHz)
• Reverse Recovery Time (t_rr): 4 ns (typical)

Package Information

The BAT83 is housed in a SOD68 (DO-34) hermetically-sealed glass package, which provides excellent thermal and mechanical stability. Below are the key package specifications:

Mechanical Dimensions

• Package Type: SOD68 (DO-34)
• Body Diameter: 1.8 mm (max)
• Body Length: 3.6 mm (max)
• Lead Diameter: 0.45 mm (nominal)
• Lead Spacing (Pitch): 5.08 mm (2 E)
• Weight: Approx. 0.02 g

Mounting Instructions

For optimal performance, follow these guidelines when mounting the BAT83 diode:

• Ensure proper PCB pad spacing (5.08 mm) to match the diode lead pitch.
• Avoid excessive mechanical stress on the leads during assembly.
• Use appropriate soldering techniques (wave or reflow) with a peak temperature not exceeding 260°C for 10 seconds.
• Maintain a minimum bend radius of 1.5 mm for leads to prevent damage.

Reliability and Compliance

The BAT83 Schottky diode is designed to meet industry standards for reliability and environmental compliance. Key certifications and test results include:

• ESD Protection: Passes 2 kV Human Body Model (HBM) per JESD22-A114.
• Moisture Sensitivity Level (MSL): MSL 1 (unlimited floor life at ≤30°C/85% RH).
• Flammability Rating: Compliant with UL 94V-0 for glass package materials.
• RoHS Compliance: Fully compliant with Directive 2011/65/EU.

Conclusion

The BAT83 planar Schottky barrier diode is a versatile and reliable component for high-frequency, fast-switching, and low-power-loss applications. Its combination of low forward voltage, high breakdown voltage, and integrated ESD protection makes it an excellent choice for power supplies, RF circuits, and automotive electronics. The hermetically-sealed SOD68 package ensures durability and long-term performance in demanding environments.