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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 18V SOT-23-3
- Series：DZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Cathode
- Voltage - Zener (Nom) (Vz)：18 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：50 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 15 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 DZ23C18-E3-08 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 18 V with a standard tolerance of ±5 %. The device operates at a test current of 5 mA and features a maximum reverse leakage current of 50 nA at 17 V. Dynamic resistance is specified at 45 Ω (max) at the test current. It supports a power dissipation of up to 500 mW and functions within a temperature range of -55 °C to +150 °C.
Feature Summary
- Silicon planar construction for reliable small-signal regulation
- Graded according to international E24 standard voltage values
- Dual packaging options available for reel quantities of 3000 or 10000 units
Applications
- Voltage reference circuits requiring stable DC levels
- Overvoltage protection for sensitive electronic components
- Clamping applications in signal processing paths
Procurement Notes
Verify the specific ordering suffix against project requirements. The '-08' suffix indicates a 3000-unit tape-and-reel configuration on an 8 mm carrier. Confirm that this quantity aligns with manufacturing needs before finalizing procurement orders.
Selection Notes
Select this component when a 18 V Zener voltage with ±5 % tolerance is required in a compact SOT-23 footprint. Ensure the operating environment stays within the -55 °C to +150 °C range. Verify that the 50 nA leakage current specification meets the circuit's precision requirements.
Part Context
This part 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. All devices share the same SOT-23 physical dimensions and thermal characteristics, allowing for standardized board layouts across different voltage requirements.
Replacement Considerations
Direct replacements include other Vishay parts within the DZ23 series, such as DZ23C16-E3-08 or DZ23C20-E3-08, if slightly different voltage ratings are acceptable. Cross-manufacturer equivalents must match the SOT-23 package and electrical parameters precisely.
