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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 27V SOT-23-3
- Series：DZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Cathode
- Voltage - Zener (Nom) (Vz)：27 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 20 V
- Operating Temperature：-55°C ~ 150°C
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The DZ23C27-HE3-18 is a dual common cathode Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 27 V with a maximum power dissipation of 300 mW and a tolerance of ±5%. The device is housed in an SOT-23-3 (TO-236-3, SC-59) surface-mount package. It operates within a junction temperature range of -55°C to +150°C and holds AEC-Q101 qualification for automotive applications. The component complies with RoHS3 standards and has an MSL rating of 1.
Feature Summary
- Dual common cathode configuration integrating two Zener elements in a single compact package.
- Automotive-grade reliability certified under the AEC-Q101 standard.
- Surface-mount design utilizing the SOT-23-3 footprint for efficient PCB space utilization.
Applications
- Voltage reference circuits requiring dual independent or combined regulation channels.
- Over-voltage protection stages in automotive electronic control units.
- Clamping applications in data line protection architectures.
Procurement Notes
Verify current manufacturing status as this specific part number may be discontinued or subject to product change notifications. Confirm that the HE3 suffix aligns with required environmental compliance specifications for the target assembly. Ensure the SOT-23-3 package dimensions match the intended footprint layout during procurement planning.
Selection Notes
Select this component when a dual Zener solution is required in a minimal surface-mount form factor. The 27 V nominal voltage and 300 mW power rating suit low-power signal conditioning tasks. Verify that the ±5% tolerance meets the circuit's precision requirements and that the AEC-Q101 qualification satisfies automotive reliability standards.
Part Context
This device belongs to the DZ23 series of dual Zener arrays from Vishay. These components are designed to replace discrete dual-diode configurations, reducing board space and assembly complexity. The series supports various voltage combinations and configurations, including common cathode and common anode arrangements, catering to diverse protection and reference needs.
Replacement Considerations
Check for manufacturer-recommended alternatives such as the DZ23C27-HE3_A-18 variant if the original is obsolete. Evaluate other dual Zener arrays from Vishay or competitors with matching SOT-23-3 packages and similar electrical characteristics for direct pin-compatible substitution.
FAQ
What is the internal configuration of the DZ23C27-HE3-18?
It contains two Zener diodes connected in a common cathode configuration within a single SOT-23-3 package.
Is this component suitable for automotive applications?
Yes, it is qualified according to the AEC-Q101 standard for automotive grade components.
What is the maximum power dissipation for each diode in the array?
The total maximum power dissipation for the dual array is 300 mW.
