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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 51V SOT-23-3
- Series：DZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Cathode
- Voltage - Zener (Nom) (Vz)：51 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：70 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 38 V
- Operating Temperature：150°C (TJ)
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The DZ23C51-HE3_A-08 is a dual common cathode silicon planar Zener diode array from the Vishay DZ23 series, housed in an SOT-23 package. It features a nominal Zener voltage of 51 V with a standard tolerance of ±5 %. The device operates within a junction temperature range of -55 °C to +150 °C and supports a maximum power dissipation of 500 mW on lead-mounted conditions or 300 mW on FR-4 boards. It is AEC-Q101 qualified for automotive applications and provides ESD protection exceeding 8 kV via the human body model.
Feature Summary
- Dual common cathode configuration integrating two independent Zener elements in a single compact surface-mount package
- AEC-Q101 qualification ensuring compliance with automotive electronic component reliability standards
- High electrostatic discharge robustness rated at greater than 8 kV under the human body model protocol
Applications
- Automotive circuitry requiring AEC-Q101 compliant voltage reference components
- Protection of sensitive semiconductor inputs against transient overvoltage events
- Clamping circuits in industrial control systems utilizing small signal arrays
Procurement Notes
Verify that the ordering suffix matches HE3_A-08 to confirm AEC-Q101 automotive qualification status. Ensure the procurement documentation explicitly references document number 86346. Confirm RoHS compliance details align with the specific manufacturing batch requirements for your assembly process.
Selection Notes
Select this component when a dual common cathode topology is required for space-constrained designs. Verify that the 51 V nominal breakdown voltage aligns with the target clamping threshold. Consider the 300 mW thermal limit on FR-4 substrates during high-duty cycle operations to prevent junction overheating.
Part Context
This part belongs to the DZ23 Series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of standardized voltages from 2.2 V to 75 V. The HE3_A suffix specifically denotes the automotive-grade variant, distinguishing it from the commercial grade E3 versions while maintaining identical electrical characteristics and physical dimensions.
Replacement Considerations
DZ23C51-E3-08: Commercial grade equivalent lacking automotive qualification. DZ23C51-HE3_A-18: Identical electrical specifications but supplied in 13-inch tape reels instead of 7-inch reels.
