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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-HE3-18 is a transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. It features a common anode dual configuration housed in a surface-mount SOT-23-3 package. The device provides a typical reverse standoff voltage of 22 V and a maximum clamping voltage of 38 V at a peak pulse current of 1 A. It has a rated peak pulse power of 40 W and meets the AEC-Q101 automotive qualification standard. The component operates within a junction temperature range of -55°C to +150°C.
Feature Summary
- Dual common anode TVS configuration for bidirectional or dual-line protection
- Automotive grade reliability certified under AEC-Q101 standards
- Compact SOT-23-3 surface mount footprint for space-constrained designs
Applications
- Protection of data lines in automotive electronic systems
- Surge suppression for I/O ports in vehicle control modules
- Transient voltage protection in compact consumer electronics
Procurement Notes
Verify the specific suffix against official Vishay documentation, as variations such as HE3_A-18 may exist. Confirm RoHS compliance status and ensure the part number matches the exact pinout and electrical characteristics required for the target circuit design before procurement.
Selection Notes
Select this component when dual-channel transient protection is required in a minimal footprint. Ensure the operating voltage does not exceed the 22 V reverse standoff rating. Verify that the expected surge currents remain within the 1 A peak pulse limit to maintain device integrity during transient events.
Part Context
This part belongs to the MMBZ27VDA series of dual TVS diodes. It shares the SOT-23-3 package form factor with other Vishay surface-mount protection devices but offers higher peak pulse power handling compared to standard Zener diodes in similar packages. The HE3 designation indicates a green molding compound compliant with RoHS directives.
Replacement Considerations
Direct substitutes must match the SOT-23-3 package, 22 V standoff voltage, and dual common anode configuration. Verify that any replacement also holds AEC-Q101 certification if used in automotive applications. Check clamping voltage limits to ensure compatibility with protected circuitry.
