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SMCJ45A from FAIRCHILD,Fairchild Semiconductor

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SMCJ45A

Manufacturer: FAIRCHILD

TECHNICAL SPECIFICATIONS OF SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR

Partnumber Manufacturer Quantity Availability
SMCJ45A FAIRCHILD 43000 In Stock

Description and Introduction

TECHNICAL SPECIFICATIONS OF SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR The SMCJ45A is a transient voltage suppressor (TVS) diode manufactured by Fairchild Semiconductor (now part of ON Semiconductor). Here are its specifications, descriptions, and features based on available information:  

### **Specifications:**  
- **Peak Pulse Power (10/1000μs):** 1500W  
- **Standoff Voltage (VWM):** 38.5V  
- **Breakdown Voltage (VBR):** 42.7V – 47.1V  
- **Clamping Voltage (VC):** 69.9V at 10A  
- **Maximum Reverse Leakage Current (IRM):** 1μA at VWM  
- **Junction Capacitance (CJ):** 300pF (Typical)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AB (SMC)  

### **Descriptions:**  
- Designed to protect sensitive electronics from high-voltage transients.  
- Bi-directional TVS diode (clamps both positive and negative surges).  
- Meets IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (Surge) standards.  

### **Features:**  
- Low clamping voltage for superior protection.  
- Fast response time (<1ns).  
- High surge capability.  
- RoHS compliant.  

For exact details, refer to the official datasheet.

Partnumber Manufacturer Quantity Availability
SMCJ45A CONCORD 35000 In Stock

Description and Introduction

TECHNICAL SPECIFICATIONS OF SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR The SMCJ45A is a transient voltage suppressor (TVS) diode manufactured by CONCORD.  

### **Specifications:**  
- **Voltage - Reverse Standoff (Vₑ):** 38.9V  
- **Voltage - Breakdown (Vₜ):** 43.3V (Min)  
- **Voltage - Clamping (Vc):** 70.3V at 37.5A  
- **Peak Pulse Current (Iₚₚ):** 37.5A (8/20µs)  
- **Power - Peak Pulse (Pₚₚ):** 600W  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AB (SMC)  

### **Description:**  
The SMCJ45A is designed to protect sensitive electronics from high-voltage transients, such as ESD, lightning, and inductive switching events. It offers fast response times and low clamping voltage.  

### **Features:**  
- **High Surge Capability:** Handles large transient currents.  
- **Low Clamping Voltage:** Provides effective protection.  
- **RoHS Compliant:** Meets environmental standards.  
- **Unidirectional:** Protects against positive transients.  

For detailed datasheet information, refer to CONCORD’s official documentation.

Partnumber Manufacturer Quantity Availability
SMCJ45A Littelfu.. 96000 In Stock

Description and Introduction

TECHNICAL SPECIFICATIONS OF SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR The SMCJ45A is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse.  

### **Specifications:**  
- **Voltage - Reverse Standoff (V_RWM):** 45V  
- **Voltage - Breakdown (V_BR):** 50V (min)  
- **Voltage - Clamping (V_C):** 73.2V at 10A  
- **Current - Peak Pulse (I_PP):** 10A (8/20µs)  
- **Power - Peak Pulse (P_PP):** 600W  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AB (SMC)  

### **Descriptions:**  
- Designed to protect sensitive electronics from voltage transients and surges.  
- Bidirectional TVS diode for AC or DC circuits.  
- RoHS compliant and lead-free.  

### **Features:**  
- Low clamping voltage for enhanced protection.  
- Fast response time (pico-second range).  
- High surge capability.  
- Reliable performance under harsh conditions.  

For detailed datasheets, refer to Littelfuse's official documentation.

Partnumber Manufacturer Quantity Availability
SMCJ45A MICROSEMI 35000 In Stock

Description and Introduction

TECHNICAL SPECIFICATIONS OF SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR The **SMCJ45A** is a **Transient Voltage Suppressor (TVS) Diode** manufactured by **Microsemi** (now part of **Microchip Technology**).  

### **Specifications:**  
- **Voltage - Reverse Standoff (V_RWM):** 38.9V  
- **Voltage - Breakdown (V_BR):** 43.3V (min)  
- **Voltage - Clamping (V_C):** 70.1V at 42.1A (peak pulse current)  
- **Peak Pulse Current (I_PP):** 42.1A (8/20μs waveform)  
- **Power - Peak Pulse (P_PP):** 3000W (typical)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AB (SMC)  

### **Descriptions:**  
- Designed for **surge protection** in high-speed data lines and sensitive electronics.  
- Provides **ESD and transient overvoltage protection** for applications such as telecommunications, automotive, and industrial systems.  
- **Unidirectional** TVS diode, meaning it clamps positive transients only.  

### **Features:**  
- **Low Clamping Voltage** for effective transient suppression.  
- **Fast Response Time** (typically <1ns).  
- **High Surge Capability** (3000W peak pulse power).  
- **RoHS Compliant** and lead-free.  
- **Reliable Performance** under harsh environmental conditions.  

This diode is commonly used for protecting circuits from **lightning strikes, inductive load switching, and electrostatic discharge (ESD)**.

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