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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 2.7V SOT-363
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Reel (TR)
- Configuration：3 Independent
- Voltage - Zener (Nom) (Vz)：2.7 V
- Tolerance：±5%
- Power - Max：200 mW
- Impedance (Max) (Zzt)：30 Ohms
- Current - Reverse Leakage @ Vr：75 µA @ 1 V
- Operating Temperature：-65°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-363
- Voltage - Forward (Vf) (Max) @ If：900 mV @ 10 mA
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Overview
The CMKZ5223B TR is a surface mount triple isolated silicon Zener diode from the CMKZ5221B series by Central Semiconductor Corp. It houses three independent Zener diodes in an ULTRAmini SOT-363 package with six terminals. Each diode features a nominal Zener voltage of 2.7 V, tested at 20 mA, with a 5% tolerance range of 2.565 V to 2.835 V. The maximum dynamic impedance (ZZT) is 30 Ω at the test current, while knee impedance (Zzk) is 1300 Ω at 0.25 mA. Maximum reverse leakage current is 75 μA at 1.0 V. Forward voltage is 0.9 V max at 10 mA. Power dissipation per diode is 200 mW, operating temperature ranges from -65°C to +150°C, and thermal resistance is 625 °C/W.
Feature Summary
- Triple isolated configuration containing three independent Zener diodes within a single compact SOT-363 package.
- Designed for industrial, commercial, entertainment, and computer applications requiring multiple reference voltages.
- Features low forward voltage drop and defined temperature coefficients for stable performance across operating ranges.
Applications
- Industrial control systems
- Commercial electronic equipment
- Entertainment electronics
- Computer circuitry
Procurement Notes
Verify component status carefully as this part is classified as End of Life (EOL). Replacement availability is limited to stock only; no direct manufacturer replacements are listed. Confirm lead times and minimum order quantities with distributors before ordering, as production has ceased.
Selection Notes
Select this component when a triple isolated Zener array is required in an SOT-363 footprint. Ensure the 2.7 V nominal voltage and 5% tolerance meet circuit requirements. Verify that the 200 mW power dissipation per diode is sufficient for the application's thermal conditions.
Part Context
This device belongs to the CMKZ5221B through CMKZ5261B series of surface mount triple isolated silicon Zener diodes. The series offers various voltage options from 2.4 V to 47 V, all sharing the same SOT-363 package and isolation architecture for multi-channel voltage regulation needs.
Replacement Considerations
No official replacement part numbers are provided by the manufacturer. Availability is restricted to existing stock only. Engineers should evaluate alternative triple Zener arrays from other manufacturers if new production is required.
FAQ
What is the marking code for the CMKZ5223B?
The marking code for the CMKZ5223B is 8C1T.
What is the maximum reverse leakage current for each diode?
The maximum reverse leakage current is 75 μA at a reverse voltage of 1.0 V.
Is this component RoHS compliant?
The datasheet does not explicitly state RoHS compliance for this specific EOL part number, but standard plating options include PbSn or PbFree upon request.
