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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 39V SOT-363
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Bulk
- Configuration：3 Independent
- Voltage - Zener (Nom) (Vz)：39 V
- Tolerance：±5%
- Power - Max：200 mW
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 30 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 CMKZ5259B BK is a surface mount triple isolated silicon Zener diode from the Central Semiconductor CMKZ5221B series. It houses three independent Zener diodes in an ULTRAmini SOT-363 package with 5% voltage tolerance. Each diode features a nominal Zener voltage of 39 V, tested at 3.2 mA. Maximum dynamic impedance is 80 Ω at test current and 800 Ω at knee current. The device supports a maximum power dissipation of 200 mW per diode and operates 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 surface mount package
- Designed for industrial, commercial, entertainment, and computer applications requiring multiple voltage references
- ULTRAmini SOT-363 case form factor optimized for space-constrained printed circuit board layouts
Applications
- Industrial control systems requiring multiple isolated voltage regulation points
- Commercial equipment utilizing compact multi-channel reference circuits
- Computer hardware designs needing integrated Zener protection or biasing
Procurement Notes
Verify component authenticity through authorized distribution channels. Confirm datasheet revision status as the product is classified as End of Life. Check for stock availability constraints since new production orders are discontinued. Ensure ordering suffixes match required plating specifications if applicable.
Selection Notes
Select this component when three isolated Zener diodes with identical electrical characteristics are required in a minimal footprint. Verify that the 39 V nominal voltage and 200 mW power rating align with circuit requirements. Consider thermal resistance limitations during high-density PCB assembly planning.
Part Context
This part belongs to the CMKZ5221B series, which spans Zener voltages from 2.4 V to 75 V across multiple part numbers. All devices share the same SOT-363 packaging and isolation architecture. The series provides standardized electrical parameters for consistent design integration across various voltage levels.
Replacement Considerations
No direct replacement part numbers are available. The manufacturer lists only stock availability for existing inventory. Contact engineering support for potential alternate source recommendations if current stock is exhausted.
