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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 PBFREE is a dual-element Zener diode array manufactured by Central Semiconductor Corp. It features a common anode configuration housed in an SOT-323 surface-mount package. The nominal Zener voltage is 27 V with a ±5% tolerance, and the maximum power dissipation is 0.35 W. Key electrical parameters include a maximum knee impedance of 300 Ω and a maximum reverse leakage current of 1 µA at 2 V. The device operates within a temperature range of -65 °C to +150 °C.
Feature Summary
- Dual-element Zener array with common anode topology
- High thermal stability across extended industrial temperature ranges
- Compact SOT-323 surface-mount packaging for space-constrained designs
Applications
- Voltage reference circuits requiring dual stable potentials
- Transient voltage suppression in low-power signal lines
- Clamping applications in precision analog front-ends
Procurement Notes
Verify the specific suffix and tape-and-reel quantity against the manufacturer's latest datasheet before ordering. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary by region and production batch.
Selection Notes
Select this component when a dual Zener solution in a minimal footprint is required. Ensure the 0.35 W power rating and 27 V breakdown voltage align with the circuit's voltage headroom and thermal management capabilities. Compare knee impedance specifications against similar arrays if precise regulation under low current is critical.
Part Context
This part belongs to the CMSZDA series of dual Zener diode arrays from Central Semiconductor. These components are designed to replace discrete dual-diode configurations, saving board space and simplifying assembly. The series offers various voltage options within the same SOT-323 package form factor.
Replacement Considerations
Publicly confirmed direct substitute part numbers are not available in the provided documentation. Verify compatibility with alternative dual Zener arrays from other manufacturers based on pinout, voltage tolerance, and package dimensions.
