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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 13V SOT-363
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Bulk
- Configuration：3 Independent
- Voltage - Zener (Nom) (Vz)：13 V
- Tolerance：±5%
- Power - Max：200 mW
- Impedance (Max) (Zzt)：13 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 9.9 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 CMKZ5243B BK is a surface mount triple isolated silicon Zener diode from the Central Semiconductor CMKZ5221B series, housed in an ULTRAmini SOT-363 package. It contains three independent Zener diodes with a nominal voltage of 13 V and a tolerance of ±5%. The device operates within a junction temperature range of -65°C to +150°C and dissipates up to 200 mW. Electrical characteristics per diode include a maximum reverse current of 0.5 µA at 9.9 V and a maximum Zener impedance of 13 Ω at a test current of 9.5 mA.
Feature Summary
- Triple isolated configuration providing three independent Zener diodes in a single compact surface mount package
- Designed for industrial, commercial, entertainment, and computer applications requiring space-efficient voltage regulation
Applications
- Industrial equipment voltage regulation
- Commercial electronic circuit protection
- Computer system power management
Procurement Notes
This component has been transitioned to End of Life status by the manufacturer. Current availability is restricted to existing stock only, with no new production planned. Buyers should verify stock levels carefully as supply is finite. Replacement alternatives are not officially provided by the manufacturer for this specific part number.
Selection Notes
Select this component when a compact triple Zener solution is required for space-constrained designs. Verify that the 13 V nominal voltage and 5% tolerance meet circuit requirements. Ensure the design accounts for the 200 mW total power dissipation limit across all three diodes within the specified operating temperature range.
Part Context
The CMKZ5243B BK belongs to the CMKZ5221B through CMKZ5261B series, which offers various Zener voltages from 2.4 V to 47 V. All devices in this series share the same ULTRAmini SOT-363 package and triple isolated architecture, allowing designers to choose specific voltage ratings while maintaining consistent footprint and thermal characteristics.
Replacement Considerations
No official replacement part numbers are listed by the manufacturer. The product notice indicates 'N/A, Stock Only' for this item. Engineers must identify third-party equivalents or redesign circuits if stock becomes unavailable.
