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SMDA24 from SEMTECH

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SMDA24

Manufacturer: SEMTECH, MICROSEMI, PROTEK, MSC

Unidirectional TVS Array for Protection of Four Lines
Partnumber Manufacturer Quantity Availability
SMDA24 SEMTECH, MICROSEMI, PROTEK, MSC 8954 In Stock

Description and Introduction

Unidirectional TVS Array for Protection of Four Lines The **SMDA24** is a **bidirectional TVS diode array** manufactured by **Microsemi** (now part of **Microchip Technology**). Below are its key specifications, descriptions, and features based on the available knowledge base:

### **Specifications:**
- **Type:** Bidirectional Transient Voltage Suppressor (TVS) Diode Array  
- **Configuration:** 4-line array (4 channels)  
- **Working Voltage (VWM):** 24V  
- **Breakdown Voltage (VBR):** 26.7V (min), 29.5V (typ), 32.2V (max)  
- **Clamping Voltage (VC):** 38.9V (max) at 5A  
- **Peak Pulse Current (IPP):** 5A (8/20µs waveform)  
- **Leakage Current (IR):** 1µA (max) at VWM  
- **Capacitance (CD):** 50pF (typ) per channel  
- **Power Dissipation:** High surge capability  

### **Descriptions:**
- Designed for **ESD (Electrostatic Discharge)** and **surge protection** in high-speed data lines.  
- Protects sensitive electronics from **transient voltage events** such as lightning, inductive switching, and ESD.  
- **Bidirectional** operation allows clamping of both positive and negative voltage transients.  
- Suitable for **USB, HDMI, Ethernet, and other high-speed interfaces**.  

### **Features:**
- **Low Clamping Voltage:** Provides effective transient suppression.  
- **Fast Response Time:** Reacts quickly to transient events (nanosecond range).  
- **RoHS Compliant:** Lead-free and environmentally friendly.  
- **Compact Package:** Available in **SOT-23-6** or similar small form factor.  
- **High Reliability:** Robust protection for industrial and automotive applications.  

For exact datasheet details, refer to **Microsemi/Microchip’s official documentation**.

Application Scenarios & Design Considerations

Unidirectional TVS Array for Protection of Four Lines

Alternative Part Number

  • SRV05-4 --: Same manufacturer's 4-line TVS diode array in SOT-23-6, commonly used as a functional substitute for SMDA24 in ESD protection applications.
  • USBLC6-2SC6 --: Dual-line ESD protection array in SOT-23-6 with similar clamping behavior, widely available and often used to replace SMDA24 in data-line protection.
  • TPD4E05U06 --: Four-channel ESD protection diode array in SOT-23-6 offering comparable standoff voltage and low capacitance, suitable as a cross-manufacturer alternative.
  • SP724 --: Multi-line TVS array offering comparable clamping performance and low capacitance, suitable for ESD protection where the SMDA24 is used.
  • USBLC6-4SC6 --: Four-channel ESD protection array with similar working voltage and low capacitance, widely available and functionally comparable for interface protection.
  • SMBJ24CA --: Bidirectional 24V TVS diode in SMB package with similar clamping performance, widely available and a common drop-in replacement for SMDA24 surge protection.
  • P6SMB24CA --: 600W bidirectional TVS diode rated at 24V standoff, matching the SMDA24's transient suppression role with comparable package and electrical characteristics.
  • 1SMB24CAT3G --: 24V bidirectional SMB TVS diode offering similar peak pulse power and clamping voltage, suitable as an alternative protection device for SMDA24 applications.

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