STMicroelectronics SMM4F33A-TR - Surface Mount Transil™ Diodes

The SMM4F33A-TR from STMicroelectronics is a robust, high-performance Transil™ diode designed to provide precise voltage clamping in a compact SMF package. This transient voltage suppressor (TVS) is engineered to protect sensitive electronic equipment from voltage transients induced by load dump and other transient voltage events.

Key Features

• Stand-off voltage: The device has a stand-off voltage of 33V, making it suitable for a wide range of applications.
• Peak pulse power: It can handle 400W (10/1000μs) peak pulse power, providing reliable protection against surges.
• Low clamping factor: With a low clamping factor, the SMM4F33A-TR ensures that the voltage presented to the protected circuit does not exceed a safe level during transient conditions.
• Fast response time: The diode features an exceptionally fast response time to transient events, ensuring quick and effective protection.
• Low leakage current: The device exhibits low leakage current, minimizing power loss when the diode is in the standby state.
• Surface Mount Device (SMD): Its SMF package is designed for easy integration into PCBs with surface mount technology (SMT).
• Operating temperature range: The SMM4F33A-TR operates effectively over a wide temperature range from -55°C to +150°C.

Applications

The SMM4F33A-TR is ideal for protecting voltage-sensitive components in a variety of applications, including:

• Automotive electronics
• Industrial systems
• Power supply units
• Telecommunication devices
• Portable devices
• Computing equipment

Reliability and Compliance

STMicroelectronics is known for its commitment to quality, and the SMM4F33A-TR is no exception. It complies with the ISO 7637-2 pulse 5A and 5B standard and is RoHS compliant, ensuring it meets current environmental standards for electronic components. Additionally, its AEC-Q101 qualification makes it suitable for automotive applications, where reliability under harsh conditions is paramount.

With its robust design and comprehensive features, the SMM4F33A-TR is an excellent choice for designers looking to enhance the durability and longevity of their electronic products.