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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 47V SOT-23-3
- Series：DZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Cathode
- Voltage - Zener (Nom) (Vz)：47 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：100 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 35 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 DZ23C47-E3-18 is a silicon planar Zener diode from the Vishay DZ23 series, housed in an SOT-23 surface-mount package. It provides a nominal Zener voltage of 47 V with a standard tolerance of ±5 %. The device operates within a junction temperature range of -55 °C to +150 °C and dissipates up to 300 mW on an FR-4 board. Electrical characteristics include a maximum reverse leakage current of 50 μA at 35 V and a dynamic resistance of 97 Ω at a test current of 2 mA.
Feature Summary
- Dual common cathode configuration for space-efficient circuit designs
- ESD protection capability exceeding 8 kV via human body model
- RoHS-compliant commercial grade construction
Applications
- Voltage reference circuits requiring stable bias points
- Overvoltage protection stages in signal conditioning paths
- Clamping applications in low-power electronic assemblies
Procurement Notes
Verify component authenticity by cross-referencing the manufacturer part number against official Vishay documentation. Confirm that the ordering suffix matches the required reel quantity and tape specifications. Ensure compliance with RoHS directives and confirm storage conditions align with MSL level 1 requirements prior to assembly.
Selection Notes
Select this component when a precise 47 V regulation point is necessary within a compact footprint. Evaluate thermal management requirements based on the 300 mW dissipation limit on standard PCBs. Consider the specific dynamic resistance value for accuracy requirements in sensitive measurement or control loops.
Part Context
This device belongs to the DZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of graded voltages from 2.2 V to 75 V, all utilizing the standardized SOT-23 package format. The E3 suffix indicates compliance with RoHS standards for commercial applications.
Replacement Considerations
Direct substitutes must match the 47 V nominal voltage, SOT-23 package, and ±5 % tolerance. Verify that alternative components meet the same thermal resistance and power dissipation limits to ensure equivalent performance in the target application.
FAQ
What is the dynamic resistance of the DZ23C47-E3-18?
The dynamic resistance (ZZ) is specified as 97 Ω at a test current of 2 mA.
Is the DZ23C47-E3-18 AEC-Q101 qualified?
No, the base P/N-E3 variant is not AEC-Q101 qualified; only the HE3_A suffix variants hold this qualification.
What is the maximum reverse leakage current?
The maximum reverse leakage current (IR) is 50 μA when measured at a reverse voltage of 35 V.
