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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 27V SOT-323
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：27 V
- Tolerance：±7.04%
- Power - Max：275 mW
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：50 nA @ 18.9 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 CMSZDA27V TR TIN/LEAD is a dual Zener diode manufactured by Central Semiconductor Corp. It features a nominal Zener voltage of 27 V with a maximum power dissipation of 250 mW. The device is housed in an SOT-323-3 surface-mount package and supports a maximum operating temperature of +150°C. Key electrical specifications include a maximum reverse leakage current of 3 µA, a Zener impedance of 10 Ohms, and a test current of 5 mA. The component complies with RoHS3 standards and utilizes tin/lead terminations.
Feature Summary
- Dual configuration within a compact SOT-323-3 surface-mount package
- High thermal stability supporting operation up to +150°C junction temperature
- Low leakage current characteristics for precision voltage reference applications
Applications
- Voltage regulation in low-power electronic circuits
- Voltage clamping and protection stages
- Reference voltage generation in signal conditioning
Procurement Notes
Verify the specific ordering suffix against manufacturer documentation to confirm termination composition and packaging format. Confirm RoHS3 compliance status and lead-free availability requirements prior to procurement. Ensure the selected variant matches the required Zener voltage tolerance and power dissipation ratings for the target application design.
Selection Notes
Select this component based on the requirement for a dual Zener configuration in a small footprint. Evaluate the 27 V breakdown voltage against circuit requirements and ensure the 250 mW power rating accommodates expected thermal loads. Verify that the SOT-323-3 package dimensions fit the PCB layout constraints and that the 10 Ohm impedance meets noise sensitivity specifications.
Part Context
This part belongs to the CMSZDA series of dual Zener diodes from Central Semiconductor Corp. These devices are designed for general-purpose voltage regulation and protection in space-constrained surface-mount applications. The series offers various voltage options within the same compact package form factor to simplify inventory management.
Replacement Considerations
Consult official substitution guides for parameter-equivalent dual Zener diodes in SOT-323 packages. Verify matching voltage tolerances, power dissipation limits, and impedance values when considering alternative manufacturers or pin-compatible variants.
