BUL58D datasheet by STMicroelectronics

BUL58D Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for the BUL58D?
  The BUL58D can operate from -40°C to 150°C, making it suitable for high-reliability applications.
• How do I ensure the BUL58D is properly biased for optimal performance?
  To ensure proper biasing, connect the base of the transistor to a voltage divider network that provides a stable voltage reference, and ensure the collector-emitter voltage is within the recommended range.
• What is the recommended PCB layout for the BUL58D to minimize thermal resistance?
  To minimize thermal resistance, use a thermal pad on the PCB, and ensure the transistor is mounted on a heat sink or a metal core PCB. Keep the thermal path as short as possible and use thermal vias to dissipate heat efficiently.
• Can I use the BUL58D in a switching application, and if so, what are the limitations?
  Yes, the BUL58D can be used in switching applications, but it's essential to ensure the transistor is operated within its safe operating area (SOA) to prevent damage. The maximum switching frequency is 100 kHz, and the maximum collector current should not exceed 15 A.
• How do I protect the BUL58D from electrostatic discharge (ESD)?
  To protect the BUL58D from ESD, handle the device by the body, use an anti-static wrist strap or mat, and store the device in an anti-static bag or container. Ensure the PCB has ESD protection components, such as TVS diodes or ESD protection arrays.