S1ZMMBZ27VALT1G

The S1ZMMBZ27VALT1G is an onsemi dual common-anode zener/TVS diode array packaged in compact SOT-23 surface-mount housing, offering 22V standoff voltage and 27V nominal breakdown voltage for two independent signal lines in one tiny package. It delivers 40W peak pulse power and 1A peak pulse current, featuring low leakage current and robust ESD protection compliant with IEC 61000-4-2, and supports a wide junction temperature range from -55°C to 150°C, suitable for space-constrained circuits that require dual-channel transient overvoltage and electrostatic discharge protection.

Key Features

● Dual common-anode diode design to protect two separate signal channels within a single SOT-23 package, saving PCB space.

● 22V reverse standoff voltage, 25.65V minimum breakdown voltage and 40V maximum clamping voltage for reliable surge suppression.

● 40W peak pulse power rating with 1A peak pulse current and low 50nA reverse leakage to minimize static power loss.

● High ESD immunity to meet IEC 61000-4-2 standard, defending sensitive ICs from electrostatic damage.

● Wide operating junction temperature of -55°C to +150°C, tape-and-reel packaging for automated SMT assembly.

FAQ: Can this part protect power rails? It is optimized for low-current signal lines instead of main power circuits. Place the TVS device close to the protected IC pins with short PCB traces to reduce parasitic inductance and maximize ESD protection performance.

Alternative TVS diode array models

1. MMBZ27VALT1G: Standard non-automotive grade dual 27V TVS diode in SOT-23, with identical electrical parameters for general commercial signal protection.

2. SZMMBZ27VAWT1G: AEC-Q101 qualified automotive TVS diode array with same voltage rating, housed in smaller SC70-3 package for compact automotive PCBs.

3. MMBZ24VALT1G: Dual 24V TVS diode array in SOT-23 package, offering lower clamping voltage for circuits with 24V maximum working voltage.