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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 18V SOT-23
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：18 V
- Tolerance：±6.39%
- Power - Max：350 mW
- Impedance (Max) (Zzt)：45 Ohms
- Current - Reverse Leakage @ Vr：50 nA @ 12.6 V
- Operating Temperature：-65°C ~ 175°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23
- Voltage - Forward (Vf) (Max) @ If：900 mV @ 10 mA
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Overview
The CMPZDA18V TR TIN/LEAD is a dual common anode silicon Zener diode manufactured by Central Semiconductor. It features a nominal Zener voltage of 17 V with a 5% tolerance and a maximum power dissipation of 0.35 W per diode. The device operates within a temperature range of -65 °C to +150 °C, utilizing a SOT-23 (R-PDSO-G3) surface-mount package. Key electrical parameters include a maximum dynamic impedance of 45 Ω and a knee impedance of 225 Ω at specified test currents.
Feature Summary
- Dual configuration in a single common anode package for space-efficient circuit design
- High thermal stability supporting operation up to +150 °C junction temperature
- Precision voltage regulation with tight 5% tolerance for reference applications
Applications
- Voltage reference circuits requiring dual polarity or split-rail supplies
- Clamping and protection stages in industrial control systems
- Signal conditioning modules in commercial entertainment equipment
Procurement Notes
Verify the specific ordering suffix against manufacturer documentation to confirm lead-free status and packaging type. Confirm RoHS compliance details directly with the supplier, as tin/lead variants may differ from pbfree equivalents. Ensure the reel quantity matches production requirements before finalizing orders.
Selection Notes
Select this component when a dual Zener configuration with a common anode is required in a compact SOT-23 footprint. Verify that the 0.35 W power rating and 17 V nominal voltage align with the target circuit's load and supply constraints. Consider the 45 Ω dynamic impedance for noise-sensitive applications.
Part Context
This part belongs to the CMPZDA series of dual silicon Zener diodes produced by Central Semiconductor. The series offers various voltage options in a standardized surface-mount package, designed for use in industrial, commercial, and computer applications where dual voltage regulation is necessary.
Replacement Considerations
Check for direct pin-compatible substitutes within the same CMPZDA family offering different voltage ratings. Verify equivalent packages such as SOT-23-3 from other manufacturers if sourcing flexibility is required, ensuring thermal and electrical specifications match.
