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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)：100 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 38 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：-
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Overview
The DZ23C51-HE3-18 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 at a test current of 2 mA and includes AEC-Q101 automotive qualification. Electrical characteristics include a maximum reverse leakage current of 50 nA at 38 V and a dynamic resistance of 100 Ω at the test current.
Feature Summary
- Dual common cathode configuration for space-efficient circuit design
- AEC-Q101 qualified for automotive reliability standards
- ESD protection exceeding 8 kV via human body model
Applications
- Automotive electronic circuits requiring robust ESD protection
- Voltage reference applications utilizing dual independent channels
- Signal conditioning within temperature ranges of -55 °C to +150 °C
Procurement Notes
Verify that the specific ordering code matches the required tape and reel specifications. Confirm the presence of the HE3 suffix to ensure AEC-Q101 compliance. Cross-reference the manufacturer's documentation for any updates regarding material categorization or RoHS status before finalizing procurement orders.
Selection Notes
Select this component when a dual-channel Zener array is required in a compact SOT-23 footprint. Ensure the operating environment meets the specified thermal limits and that the 51 V breakdown voltage aligns with the target circuit requirements. Verify that the 2 mA test current is compatible with the available drive capabilities.
Part Context
This part belongs to the DZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series offers various voltage grades based on the E24 standard and provides options for both commercial and automotive-grade qualifications within the same physical package family.
Replacement Considerations
Direct substitutes within the same series include DZ23C51-E3-18 (commercial grade) or DZ23C51-HE3_A-18 (alternative HE3 variant). Verify pinout compatibility and electrical tolerances against the original design specifications before implementing any cross-references.
FAQ
What is the dynamic resistance of the DZ23C51-HE3-18?
The dynamic resistance is specified as a maximum of 100 Ω at the test current of 2 mA.
Does the DZ23C51-HE3-18 meet automotive standards?
Yes, the HE3 suffix indicates that the device is AEC-Q101 qualified.
What is the maximum reverse leakage current for this device?
The maximum reverse leakage current is 50 nA when measured at a reverse voltage of 38 V.
