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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 18V SOT-363
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Bulk
- Configuration：3 Independent
- Voltage - Zener (Nom) (Vz)：18 V
- Tolerance：±5%
- Power - Max：200 mW
- Impedance (Max) (Zzt)：21 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 14 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 CMKZ5248B BK is a surface mount triple isolated silicon Zener diode from Central Semiconductor Corp, packaged in an ULTRAmini SOT-363 case. It contains three independent Zener diodes with a nominal voltage of 18V and a tolerance of ±5%. Each diode operates at a test current of 7.0mA, featuring a maximum dynamic impedance of 21Ω and a reverse current of 0.1μA at 14V. The device has a total power dissipation rating of 200mW at 25°C and functions within a junction temperature range of -65°C to +150°C.
Feature Summary
- Triple isolated configuration providing three independent Zener diodes in a single compact package
- Designed for industrial, commercial, entertainment, and computer applications
- Lead-free compliant construction
Applications
- Industrial control systems
- Commercial equipment
- Entertainment electronics
- Computer applications
Procurement Notes
This component is classified as End of Life (EOL) by the manufacturer. No new production is available; supply is limited to existing stock only. Verify availability through authorized distributors before design finalization. Last purchase orders may be subject to specific deadlines defined by the manufacturer's product management process.
Selection Notes
Select this part when space-constrained designs require multiple isolated voltage references in a small footprint. Ensure the 18V nominal breakdown matches circuit requirements. Consider that the EOL status limits long-term sourcing reliability. Evaluate alternative components if future production continuity is critical for the application lifecycle.
Part Context
The CMKZ5248B belongs to the CMKZ5221B series, which covers Zener voltages from 2.4V to 47V in the SOT-363 package. This series provides standardized triple-diode solutions for voltage regulation tasks. The 'BK' suffix typically denotes bulk packaging, though official datasheet specifics on packaging variations are not detailed in the provided documentation.
Replacement Considerations
No direct replacement part numbers are listed in the official End of Life notice. The document states 'N/A, Stock Only' for all series members. Contact [email protected] for assistance locating alternate sources or suitable substitutes.
