The SZMM5Z13VT5GF is a surface-mount (SMD) transient voltage suppressor (TVS diode) designed for efficient protection of electronic circuits against transient voltage surges and electrostatic discharge (ESD). It belongs to the Zener diode-based TVS family, characterized by fast response time, high surge current handling capability, and compact packaging, making it suitable for space-constrained electronic systems.
As a core function, it clamps transient overvoltages (e.g., those caused by lightning, inductive load switching, or power grid fluctuations) to a safe level (the "clamping voltage"). When the input voltage exceeds its breakdown voltage, the diode rapidly switches from a high-impedance state to a low-impedance state, diverting the surge current to ground and preventing damage to sensitive downstream components (such as microcontrollers, sensors, or integrated circuits).
It complies with international ESD protection standards (typically IEC 61000-4-2, Levels 4: ±8kV contact, ±15kV air discharge). This function shields circuits from electrostatic damage during manufacturing, assembly, and end-user operation—critical for preserving the reliability of precision electronics.
In the normal operating state (voltage below breakdown voltage), the diode exhibits extremely low leakage current. This minimizes power loss in the circuit and avoids interference with the normal operation of low-power or precision analog/digital systems.
TVS diodes like the SZMM5Z13VT5GF feature ultra-fast response times (typically in nanoseconds, ns). This ensures it activates almost instantaneously to suppress transient surges, which is essential for protecting components with narrow voltage tolerance windows.
The SZMM5Z13VT5GF SOD-523 ,a miniature surface-mount package with dimensions of approximately 1.2mm × 0.8mm × 0.6mm. This compact form factor is ideal for dense PCB layouts in portable or miniaturized electronic devices.
- Smartphones/Tablets: Protects USB-C charging ports, audio jacks, and touchscreen controllers from ESD and charging-related transients.
- Wearables (Smartwatches, Fitness Trackers): Shields small-form-factor circuits (e.g., sensor interfaces, Bluetooth modules) from electrostatic damage.
- Digital Cameras/Camcorders: Guards image sensors and data interfaces (HDMI, USB) against surges during connection or handling.
- IoT Sensors (Temperature, Humidity): Protects low-power MCU pins and communication interfaces (I²C, SPI) from environmental transients.
- Bluetooth/Wi-Fi Modules: Shields RF pins and power supplies from voltage spikes that could degrade signal integrity or damage the module.
- Industrial Sensors (Proximity, Pressure): Protects analog signal lines from transients caused by motor switching or industrial power fluctuations.
- Automotive Infotainment/Instrument Clusters: Guards low-voltage auxiliary circuits (e.g., USB ports, CAN-Lite interfaces) from ESD and battery-related surges (not for high-voltage powertrain systems).
- USB Hubs, External SSDs: Protects USB data and power lines from surges when connecting/disconnecting devices.
- Printers/Scanners: Shields control boards and data interfaces (Ethernet, USB) from electrostatic discharge during user operation.
- Compact Size: SOD-523 package saves PCB space, critical for miniaturized designs.
- Reliable Protection: Complies with industry ESD/surge standards, ensuring long-term circuit reliability.
- Low Power Impact: Low leakage current minimizes power consumption, suitable for battery-powered
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SZMM5Z13VT5GF is a surface-mount (SMD) transient voltage suppressor by Nexperia Images
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