The SMBJ15A / TPSMB15AHE3 represents two possible part number designations (SMBJ15A and TPSMB15AHE3) for Transient Voltage Suppressor (TVS) diodes manufactured by Vishay. Both are designed to protect sensitive electronic components from voltage transients induced by inductive load switching and lightning. They are part of the SMBJ/TPSMB series, which is known for its compact size and high surge capability.

Applications:

• I/O Port Protection
• VCC Bus Protection
• Data Line Protection
• Microprocessor Protection
• Protection against ESD and EFT

Features:

• Unidirectional TVS Diode
• Surface mount SMB package
• Low profile
• Excellent clamping capability
• High surge capability: 600 W peak pulse power (tp = 10/1000 μs)
• Low incremental surge resistance
• Meets MSL level 1, per J-STD-020, LF maximum peak of 260 °C
• AEC-Q101 qualified available (TPSMB15AHE3 specifically)

Benefits:

• Effective protection against transient overvoltages, ensuring system reliability.
• Reduces component failure rates and associated maintenance costs.
• Compact size allows for use in densely populated circuit boards.
• Fast response time to transient events.
• Compliant with industry standards for surge protection.

Additional Details:

The SMBJ15A and TPSMB15AHE3 have a standoff voltage of 15V and a breakdown voltage typically between 16.7V and 18.5V. The 'A' suffix designates a unidirectional TVS diode. The devices are available in an SMB (DO-214AA) package. The operating temperature range is from -55°C to +150°C. The TPSMB15AHE3 version specifically may denote enhanced testing, AEC-Q101 automotive qualification, or other specific attributes, as indicated by the datasheet. Always refer to the official datasheet for comprehensive electrical characteristics, specific features, and application guidelines pertaining to each specific part number (SMBJ15A or TPSMB15AHE3).