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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 12V SOT-363
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Reel (TR)
- Configuration：3 Independent
- Voltage - Zener (Nom) (Vz)：12 V
- Tolerance：±5%
- Power - Max：200 mW
- Impedance (Max) (Zzt)：30 Ohms
- Current - Reverse Leakage @ Vr：1 µA @ 9.1 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 CMKZ5242B TR is a surface mount triple isolated silicon Zener diode from the Central Semiconductor CMKZ5221B series, packaged in an ULTRAmini SOT-363 case. It contains three independent Zener diodes with a nominal voltage of 12 V (range: 11.40 V to 12.60 V) at a test current of 20 mA. Maximum Zener impedance is 30 Ω at IZT and 600 Ω at IZK. The device has a maximum power dissipation of 200 mW per diode, operating temperature range of -65°C to +150°C, and ±5% tolerance.
Feature Summary
- Triple isolated configuration providing three independent Zener diodes within a single compact package
- Designed for industrial, commercial, entertainment, and computer applications
- Surface mount construction utilizing the ULTRAmini SOT-363 case
Applications
- Industrial equipment voltage regulation
- Commercial electronic circuit protection
- Entertainment system power management
- Computer application voltage referencing
Procurement Notes
This component is classified as End of Life (EOL). No new production is available; only existing stock may be sourced. Verify availability through authorized distributors or inventory holders. Last purchase orders were subject to specific deadlines defined in the manufacturer's discontinuation notice. Confirm part authenticity and storage conditions when acquiring remaining stock units.
Selection Notes
Select this component when a triple isolated Zener array is required in a small surface mount footprint. Ensure the 12 V nominal voltage and 20 mA test current align with circuit requirements. Verify that the SOT-363 package dimensions fit the design constraints. Consider the EOL status and potential supply limitations during the selection phase.
Part Context
The CMKZ5242B TR belongs to the CMKZ5221B series, which spans Zener voltages from 2.4 V to 47 V. All devices in this series share the same triple isolated SOT-363 packaging and general electrical characteristics structure, differing primarily in nominal voltage, impedance, and marking codes. This series was designed to save board space compared to discrete components.
Replacement Considerations
No direct replacement part numbers are provided by the manufacturer. The discontinuation notice lists 'N/A, Stock Only' for all variants in the series. Engineers must identify alternative suppliers or redesign using currently available components if new production is required.
FAQ
What is the marking code for the CMKZ5242B?
The marking code for the CMKZ5242B is 8SCT.
What is the maximum reverse current for this device?
The maximum reverse current is 1.0 μA at a reverse voltage of 9.1 V.
Is this component still in active production?
No, the CMKZ5221B series, including the CMKZ5242B, is discontinued and classified as End of Life.
