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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 43V SOT-23
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：43 V
- Tolerance：±6.98%
- Power - Max：350 mW
- Impedance (Max) (Zzt)：150 Ohms
- Current - Reverse Leakage @ Vr：50 nA @ 30.1 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 CMPZDA43V TR TIN/LEAD is a dual silicon Zener diode manufactured by Central Semiconductor Corp, housed in an SOT-323-3 surface-mount package. It features a common cathode configuration with a nominal Zener voltage of 43 V and a maximum power dissipation of 275 mW at 25°C ambient temperature. The device exhibits a maximum reverse leakage current of 1 µA and a Zener impedance of 100 Ω when tested at 5 mA. Operating reliably within a temperature range from -65°C to +150°C, this component utilizes tin/lead terminations for soldering.
Feature Summary
- Dual Zener diodes integrated into a single compact surface-mount package
- Common cathode configuration simplifies circuit layout and design
- High thermal stability supporting operation up to 150°C junction temperature
Applications
- Voltage reference circuits requiring precise dual rail regulation
- 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 or material composition changes. Confirm that the tape and reel packaging matches automated assembly requirements. Ensure compatibility with tin/lead soldering profiles if RoHS exemptions are not applicable to the final product assembly process.
Selection Notes
Select this component when space-constrained designs require two independent voltage references or clamping paths. Evaluate the 275 mW power rating against expected peak currents to prevent thermal overload. Compare the 100 Ω impedance specification against noise sensitivity requirements in precision analog signal paths.
Part Context
This part belongs to the CMPZDA series of dual silicon Zener diodes produced by Central Semiconductor. The series covers various voltage options within the same SOT-323-3 footprint, allowing designers to standardize on a single package type while adjusting voltage levels through different model suffixes without altering the board layout.
Replacement Considerations
Cross-reference with other SOT-323-3 dual Zener diodes offering similar 43 V ratings and 275 mW power dissipation. Verify pinout compatibility and electrical parameter tolerances before substitution.
