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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 27V SOT-23-3
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR),Cut Tape (CT)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：27 V
- Tolerance：-
- Power - Max：225 mW
- Impedance (Max) (Zzt)：-
- Current - Reverse Leakage @ Vr：80 nA @ 22 V
- Operating Temperature：-55°C ~ 150°C
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
- Voltage - Forward (Vf) (Max) @ If：1.1 V @ 200 mA
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Overview
The MMBZ27VDA-HE3-08 is a dual common cathode Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor. It is housed in an SOT-23 surface-mount package and certified to AEC-Q101 standards for automotive applications. The device features a working voltage of 22V, with a breakdown voltage minimum of 25.65V and a maximum clamping voltage of 38V at a peak pulse current of 1A. It offers a peak pulse power dissipation of 40W and operates within a junction temperature range of -55°C to +150°C.
Feature Summary
- Dual-channel configuration providing bidirectional transient protection for differential signal lines.
- Automotive-grade reliability compliant with AEC-Q101 qualification standards.
- Low-profile SOT-23 surface-mount packaging designed for space-constrained circuit boards.
Applications
- Protection of high-speed data interfaces such as USB and HDMI ports.
- Surge suppression for automotive electronic control units and sensors.
- Transient voltage mitigation in telecommunications equipment input stages.
Procurement Notes
Verify the specific suffix against official manufacturer documentation, as variations like HE3_A-18 indicate different reel quantities or tape specifications rather than functional changes. Confirm RoHS compliance status and ensure the component matches the required AEC-Q101 certification for target automotive deployments before finalizing orders.
Selection Notes
Select this component when designing circuits requiring dual-channel ESD and surge protection for sensitive digital interfaces. Ensure the system's operating voltage remains below the 22V working threshold to prevent unintended conduction. Verify that the PCB footprint aligns with the SOT-23-3 package dimensions and thermal requirements for the intended application environment.
Part Context
This part belongs to the MMBZ27VDA series of dual TVS diodes from Vishay. It serves as a specialized protection device within the broader category of transient suppressors, distinct from single-channel variants or standard Zener diodes. The series is engineered specifically for robust performance in harsh electromagnetic environments typical of modern automotive and industrial electronics.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Engineers should consult the manufacturer's official cross-reference guides or datasheets for verified equivalent components that match the electrical parameters and package constraints.
