The **AZ114-R** is a specialized electronic component, specifically a **Transient Voltage Suppressor (TVS) Diode Array**. It is designed to protect sensitive high-speed data lines from Electrostatic Discharge (ESD), Electrical Fast Transients (EFT), and Lightning strikes. ### 1. Key Technical Specifications The following table summarizes the primary electrical characteristics of the AZ114-R: | Parameter | Symbol | Value | | :--- | :--- | :--- | | **Peak Pulse Current** (tp=8/20µs) | $I_{PP}$ | ~4.5 A | | **Reverse Stand-off Voltage** | $V_{RWM}$ | 5.0 V | | **Reverse Breakdown Voltage** | $V_{BR}$ | 6.0 V (Min) | | **Clamping Voltage** (at $I_{PP}=1A$) | $V_C$ | ~9.0 V | | **Input Capacitance** (I/O to GND) | $C_J$ | 0.5 pF (Typ) | | **Operating Temperature** | $T_{OP}$ | -55°C to +85°C | --- ### 2. Physical and Mechanical Features The device is manufactured by **Amazing Microelectronic Corp.** and usually comes in a small surface-mount package to save PCB real estate. * **Package Type:** SOT-23-6L (Small Outline Transistor with 6 leads). * **Protection Channels:** It typically protects four high-speed I/O lines. * **Lead Finish:** Lead-free (RoHS Compliant). --- ### 3. Functional Internal Structure The AZ114-R utilizes a **Low Capacitance Steering Diode** architecture. * **Steering Diodes:** These direct the transient current (the ESD spike) away from the protected IC and toward the power supply rail ($V_{CC}$) or Ground ($GND$). * **Internal TVS:** An internal Zener-like diode is integrated to clamp the voltage level, ensuring that the spike does not exceed the breakdown threshold of the delicate components downstream. --- ### 4. Common Applications Because of its extremely low capacitance (0.5 pF), the AZ114-R does not degrade high-speed signals. It is commonly found in: 1. **USB 2.0 / USB 3.0 Interfaces:** Protecting data lines ($D+$ and $D-$). 2. **HDMI/DVI Ports:** High-definition video transmission lines. 3. **Monitors and Flat Panel Displays:** LVDS (Low-Voltage Differential Signaling) lines. 4. **Ethernet Ports:** 10/100/1000 Base-T protection. 5. **Portable Electronics:** Smartphones, tablets, and laptops. --- ### 5. Circuit Implementation When designing with the AZ114-R, the device should be placed as close to the **connector** as possible. This prevents the ESD pulse from coupling into other traces on the PCB. ```text Connector Side ----> [ AZ114-R ] ----> Protected IC Side | [ GND ] ```