SMLVT3V3 3.3V Transil TVS Diode (600W, Transbar, SMB/DO-214AA)

rotect modern 3.3V microcontrollers and low-voltage ICs from power surges with the SMLVT3V3 Transil™ TVS diode from STMicroelectronics. Designed specifically for low-voltage systems (like ESP32, STM32, and Raspberry Pi Pico), standard 5V TVS diodes trigger far too late to prevent damage to sensitive core logic. The SMLVT3V3 is engineered with a strict 3.3V standoff voltage ($V_{RM}$), remaining completely passive under normal operation and clamping dangerous overvoltage spikes long before they can destroy fragile semiconductors.

Unlike micro ESD protection array chips, the SMLVT3V3 is built in a rugged SMB footprint capable of absorbing an impressive 600 Watts of peak pulse power ($10/1000\,\mu\text{s}$). This makes it an exceptional heavy-duty surge clamp for main 3.3V DC power rails, outdoor sensor hubs, industrial RS-485 interfaces, and robotics boards exposed to severe inductive kickback or lightning-induced transients.

Key Features:

• 3.3V Logic Tailored ($V_{RM}$): Specifically tuned for modern 3.3V low-power supply rails, ensuring accurate clamping without false triggers.

• 600W Peak Pulse Power: High energy dissipation capacity ($10/1000\,\mu\text{s}$) absorbs severe power surges beyond basic static discharge.

• Low Clamping Voltage: Keeps residual transient voltage at a safe minimum to protect sensitive microprocessors.

• Standard SMB Footprint: Industry-standard DO-214AA surface-mount package balances compact sizing with high thermal capability.

Specifications:

• Part Number: SMLVT3V3

• Diode Type: Unidirectional Transil™ TVS Diode / Surge Suppressor

• Stand-Off Voltage ($V_{RM}$): 3.3V

• Breakdown Voltage ($V_{BR}$): 4.1V (Minimum)

• Peak Pulse Power ($P_{PP}$): 600W ($10/1000\,\mu\text{s}$)

• Package Type: SMB / DO-214AA (SMD/SMT)