ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：DIODE ZENER ARRAY 18V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：18 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：50 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 14 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
Download product information
Overview
The AZ23B18-HE3-18 is a silicon planar Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a dual common anode configuration housed in a SOT-23 surface-mount package. The nominal Zener voltage is 18 V with a tight tolerance of ±2%. Electrical characteristics include a test current of 5 mA, a maximum reverse leakage current of 0.05 µA at 14 V, and a dynamic resistance of 45 Ω at the test current. The device supports a maximum power dissipation of 300 mW on an FR-4 board and operates within a temperature range of -55 °C to +150 °C.
Feature Summary
- Dual common anode circuit configuration for space-efficient designs
- Tight ±2% Zener voltage tolerance for precision regulation
- ESD protection capability exceeding 8 kV via human body model
Applications
- Precision voltage reference circuits
- Voltage clamping and protection stages
- Biasing networks in analog signal processing
Procurement Notes
Verify component authenticity through authorized distribution channels. Confirm RoHS compliance and AEC-Q101 qualification status as indicated by the HE3 suffix. Ensure storage conditions maintain moisture sensitivity level 1 integrity prior to soldering.
Selection Notes
Select this variant when a precise 18 V reference with ±2% accuracy is required. The common anode topology allows for independent cathode control. Verify that the 300 mW thermal rating on standard PCB footprints meets the application's power dissipation requirements.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes. The 'B' designation indicates the tighter ±2% voltage tolerance compared to the standard ±5% 'C' grade. The 'HE3' suffix denotes a lead-free, halogen-free, and AEC-Q101 qualified commercial-grade product.
Replacement Considerations
AZ23B18-E3-18 (Commercial Grade)
FAQ
What is the marking code for the AZ23B18?
The marking code for the AZ23B18 is DF1.
Does the AZ23B18-HE3-18 meet automotive standards?
Yes, the HE3 suffix indicates that the device is AEC-Q101 qualified.
What is the maximum reverse leakage current specified?
The maximum reverse leakage current is 0.05 µA measured at 14 V.
