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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：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The Vishay DZ23C51-E3-18 is a silicon planar Zener diode in the DZ23 series, housed in an SOT-23 surface-mount package. It provides a nominal Zener voltage of 51 V with a standard tolerance of ±5 %. The device operates at a test current of 2 mA and features a maximum reverse leakage current of 0.05 µA at 38 V. Dynamic resistance is specified at 100 Ω (at IZT1) and 400 Ω (at IZT2). It supports a power dissipation of up to 500 mW and functions within a temperature range of -55 °C to +150 °C.
Feature Summary
- Utilizes silicon planar technology for stable voltage regulation
- Offers high electrostatic discharge protection exceeding 8 kV via human body model
- Complies with RoHS standards for commercial grade applications
Applications
- Voltage reference circuits requiring precise potential levels
- Overvoltage protection stages in electronic systems
- Clamping applications for transient suppression
Procurement Notes
Verify that the specific part number matches the required electrical parameters before procurement. Confirm the packaging format aligns with automated assembly requirements. Ensure compliance with environmental directives relevant to the target market. Validate component authenticity through authorized distribution channels.
Selection Notes
Select this component when a 51 V Zener voltage is required in a compact SOT-23 footprint. Consider the ±5 % tolerance and dynamic resistance values for circuit accuracy. Evaluate thermal management needs based on the 500 mW power dissipation limit. Verify operating temperature ranges against environmental conditions.
Part Context
This component belongs to the Vishay DZ23 series of small signal Zener diodes. The series covers a wide voltage range from 2.2 V to 75 V. Devices are graded according to the international E24 standard. The series includes both commercial and AEC-Q101 qualified variants.
Replacement Considerations
Cross-reference with other manufacturers offering 51 V Zener diodes in SOT-23 packages. Verify pinout compatibility and physical dimensions. Compare electrical characteristics such as dynamic resistance and leakage current to ensure functional equivalence.
