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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 47V SOT-23-3
- Series：DZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Cathode
- Voltage - Zener (Nom) (Vz)：47 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：100 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 35 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 DZ23C47-HE3-08 is a silicon planar Zener diode from the Vishay DZ23 series, housed in an SOT-23 surface-mount package. It provides a nominal Zener voltage of 47 V with a tolerance of ±5 %. The device operates at a test current of 2 mA and dissipates up to 300 mW on an FR-4 board. Electrical characteristics include a maximum reverse leakage current of 35 µA and a dynamic resistance of 97 Ω at the test current. The component supports an operating temperature range from -55 °C to +150 °C.
Feature Summary
- Dual common cathode configuration within a compact SOT-23 footprint
- ESD protection capability exceeding 8 kV via human body model
- RoHS-compliant construction without halogenated materials
Applications
- Voltage reference circuits requiring stable DC levels
- Overvoltage protection for sensitive signal lines
- Clamping applications in general-purpose electronics
Procurement Notes
Verify that the specific HE3 suffix confirms AEC-Q101 qualification status as defined by the manufacturer's ordering matrix. Confirm the tape-and-reel packaging dimensions match the production line requirements before finalizing orders. Ensure compliance with RoHS directives and material categorization standards relevant to the target market.
Selection Notes
Select this component when a 47 V regulation point is required in space-constrained designs. Evaluate the 97 Ω dynamic resistance against circuit sensitivity requirements. Consider the thermal derating curve if ambient temperatures exceed standard operating limits or if power dissipation approaches the 300 mW threshold.
Part Context
This part belongs to the DZ23 series of small-signal Zener diodes manufactured by Vishay Semiconductors. The series covers a wide voltage range from 2.2 V to 75 V using standardized E24 grading. All variants share the same SOT-23 physical dimensions and mounting characteristics while differing in electrical parameters.
Replacement Considerations
DZ23C47-E3-08 (Commercial Grade)
FAQ
What is the dynamic resistance of the DZ23C47-HE3-08?
The dynamic resistance is specified as a maximum of 97 Ω when tested at the rated current of 2 mA.
Does the HE3 suffix indicate automotive qualification?
Yes, the datasheet specifies that devices with the HE3_A suffix are AEC-Q101 qualified.
What is the maximum reverse leakage current?
The maximum reverse leakage current is 35 µA when measured at the specified reverse voltage.
