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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)
- 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：-
- Qualification：-
- 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-E3-18 is a dual common anode transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor. It features a 22V working reverse voltage and a maximum clamping voltage of 38V at a peak pulse current of 1A. The device offers a peak pulse power dissipation of 40W and is housed in a surface-mount SOT-23-3 package. Designed for automotive applications, it holds AEC-Q101 qualification and operates within a junction temperature range of -55°C to +150°C.
Feature Summary
- Dual common anode configuration provides bidirectional protection or independent channel control.
Applications
- Automotive electronic circuit protection
Procurement Notes
Verify the specific suffix against official documentation, as the provided model includes an E3 designation which may differ from the HE3 variant found in available records. Confirm RoHS compliance status and ensure the component matches the required TVS specifications rather than standard Zener characteristics before procurement.
Selection Notes
Select this component when designing circuits requiring robust transient suppression in compact surface-mount layouts. Ensure the system's operating voltage remains below the 22V working reverse voltage threshold. Verify that the expected surge currents do not exceed the 1A peak pulse rating to maintain device integrity during fault conditions.
Part Context
This part belongs to the MMBZ27VDA series of automotive-grade TVS diodes. It is distinct from single-channel Zener diodes like the MMBZ5254C due to its dual structure and higher pulse power handling. The component serves as a specialized protection device for sensitive electronics in harsh electrical environments.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Cross-referencing with other manufacturers requires careful verification of pinout compatibility and electrical parameter alignment.
