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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 39V SOT-323
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：39 V
- Tolerance：±5.13%
- Power - Max：275 mW
- Impedance (Max) (Zzt)：130 Ohms
- Current - Reverse Leakage @ Vr：50 nA @ 27.3 V
- Operating Temperature：-65°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-323
- Voltage - Forward (Vf) (Max) @ If：900 mV @ 10 mA
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Overview
The CMSZDA39V TR TIN/LEAD is a dual common cathode silicon Zener diode manufactured by Central Semiconductor Corp. It features a nominal Zener voltage of 39 V with a maximum tolerance of 5%. The device is designed for surface mount applications in the SOT-23-3 package, offering a total power dissipation of 350 mW. Key electrical characteristics include a maximum dynamic impedance of 100 Ω and a reverse leakage current of 1 µA at the rated voltage. The component supports an operating junction temperature range from -65 °C to +175 °C and is supplied in tape and reel packaging.
Feature Summary
- Dual common cathode configuration for space-efficient circuit design
- High thermal stability with extended operating temperature range up to 175 °C
- Surface mount construction in compact SOT-23-3 package
Applications
- Voltage regulation in industrial control systems
- Reference voltage sources in commercial electronics
- Overvoltage protection circuits in computer applications
Procurement Notes
Verify the specific ordering suffix against manufacturer documentation to confirm lead-free status and packaging format. Confirm RoHS compliance requirements with the supplier prior to procurement. Ensure the requested quantity aligns with the standard tape and reel manufacturing unit size to avoid partial order complications.
Selection Notes
Select this component when a dual Zener configuration is required in a small surface mount footprint. Verify that the 39 V breakdown voltage matches the circuit reference needs. Check that the 350 mW power rating is sufficient for the expected current levels. Ensure the SOT-23-3 package fits the available PCB real estate constraints.
Part Context
This part belongs to the CMPZDC series of dual silicon Zener diodes produced by Central Semiconductor. The series covers a wide voltage range from 2.4 V to 47 V. These devices are engineered for high-quality voltage regulation in demanding environments. The dual common cathode design allows for independent or combined voltage referencing within a single package.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source data. Cross-reference with other manufacturers' dual Zener diodes in the SOT-23-3 package only if exact electrical parameters are matched.
