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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 5.1V SOT-323
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Reel (TR),Cut Tape (CT)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：5.1 V
- Tolerance：±5%
- Power - Max：275 mW
- Impedance (Max) (Zzt)：60 Ohms
- Current - Reverse Leakage @ Vr：2 µA @ 2 V
- Operating Temperature：-65°C ~ 175°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-323
- Voltage - Forward (Vf) (Max) @ If：900 mV @ 10 mA
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Overview
The CMSZDA5V1 TR PBFREE is a surface-mount dual silicon zener diode from Central Semiconductor, housed in an SOT-323 package. It features a common anode configuration with two independent zener elements. The nominal zener voltage is 5.1 V, with a tolerance range of 4.8 V to 5.4 V at a test current of 5.0 mA. Maximum zener impedance is 60 Ω at Izt and 480 Ω at Izk. The device supports a maximum power dissipation of 275 mW per diode and operates within a junction temperature range of -65°C to +150°C.
Feature Summary
- Dual zener diodes integrated into a single compact SOT-323 package
- Common anode configuration for simplified circuit design
- High-quality silicon construction suitable for industrial and commercial applications
Applications
- Industrial equipment voltage regulation
- Commercial electronic circuits
- Entertainment system power management
- Computer application voltage reference
Procurement Notes
Verify the specific ordering suffix against manufacturer documentation to confirm plating options. The standard designation indicates lead-free compliance. Confirm availability through authorized distributors as manufacturing schedules may vary. Ensure the procurement channel provides valid traceability documents matching the Central Semiconductor part number.
Selection Notes
Select this component when a dual common-anode zener array is required in a small surface-mount footprint. The 5.1 V nominal voltage and 275 mW power rating define its operational limits. Verify that the SOT-323 package dimensions fit the target PCB layout. Consider the positive temperature coefficient for thermal stability requirements in the specific application environment.
Part Context
This part belongs to the CMSZDA2V4 through CMSZDA47V series, which covers a wide range of zener voltages from 2.4 V to 47 V. All devices in this series share the same dual common-anode architecture and SOT-323 packaging. The series is designed for high-reliability surface-mount applications across various electronic sectors.
Replacement Considerations
Direct replacements must match the SOT-323 package, dual common-anode configuration, and 5.1 V nominal voltage. Verify that substitute components meet or exceed the 275 mW power dissipation and -65°C to +150°C operating temperature range specifications.
FAQ
What is the marking code for the CMSZDA5V1?
The marking code for the CMSZDA5V1 is Z2Z.
What is the maximum reverse current for this device?
The maximum reverse current is 2.0 µA at a reverse voltage of 2.0 V.
Does this component have a negative or positive temperature coefficient?
The CMSZDA5V1 has a positive temperature coefficient of 0.02 %/°C.
