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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 3.6V SOT-363
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Bulk
- Configuration：3 Independent
- Voltage - Zener (Nom) (Vz)：3.6 V
- Tolerance：±5%
- Power - Max：200 mW
- Impedance (Max) (Zzt)：24 Ohms
- Current - Reverse Leakage @ Vr：15 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 Central Semiconductor CMKZ5227B BK is a surface mount triple isolated silicon Zener diode housed in an ULTRAmini SOT-363 package. It contains three independent Zener diodes with a nominal voltage of 3.6 V and a 5% tolerance, tested at 20 mA. Maximum reverse current is 15 µA at 1.0 V, with a temperature coefficient of -0.065 %/°C. 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 package
- ULTRAmini SOT-363 surface mount case designed for industrial and commercial applications
- Low forward voltage drop of 0.9 V maximum at 10 mA test current
Applications
- Industrial control systems requiring multiple voltage references
- Commercial equipment utilizing space-constrained circuit boards
- Entertainment electronics needing stable reference voltages
- Computer peripheral circuits requiring isolated regulation
Procurement Notes
This component has been officially transitioned to End of Life (EOL) status by the manufacturer. Current availability is restricted to existing stock only, as no new production runs are scheduled. Buyers must verify that available inventory matches their specific quantity requirements before finalizing any acquisition plans.
Selection Notes
Designers should evaluate the thermal resistance of 625 °C/W when calculating heat dissipation in dense layouts. Verify that the required operating temperature range aligns with the specified -65 °C to +150 °C limits. Ensure the PCB footprint strictly adheres to the SOT-363 mechanical outline dimensions to prevent assembly errors.
Part Context
The CMKZ5227B BK belongs to the CMKZ5221B through CMKZ5261B series, which offers various Zener voltage options from 2.4 V to 47 V. All devices in this family share identical packaging, pinout configurations, and general electrical characteristics, differing primarily in breakdown voltage specifications and marking codes.
Replacement Considerations
No direct replacement part numbers are listed in the official documentation. The notice indicates 'N/A, Stock Only' for all variants in this series, suggesting that alternative sourcing must rely on remaining inventory rather than cross-referenced equivalent components.
FAQ
What is the marking code for the CMKZ5227B?
The marking code for the CMKZ5227B is 8BCT.
What is the maximum reverse current specification?
The maximum reverse current is 15 µA when measured at a reverse voltage of 1.0 V.
How many pins does the SOT-363 package have for this device?
The package features six pins: three anodes (D1, D2, D3) and three cathodes (D1, D2, D3).
