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SMAJ45CA from FAIRCHILD,Fairchild Semiconductor

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SMAJ45CA

Manufacturer: FAIRCHILD

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Partnumber Manufacturer Quantity Availability
SMAJ45CA FAIRCHILD 43000 In Stock

Description and Introduction

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS The SMAJ45CA is a transient voltage suppressor (TVS) diode manufactured by Fairchild Semiconductor (now part of ON Semiconductor). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Voltage - Reverse Standoff (V₄):** 45V  
- **Voltage - Breakdown (Min):** 50V  
- **Voltage - Clamping (Max) @ Iₚₚ:** 73.2V at 24.2A  
- **Peak Pulse Current (Iₚₚ):** 24.2A (8/20µs waveform)  
- **Power - Peak Pulse:** 600W (8/20µs)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AC (SMA)  

### **Description:**  
The SMAJ45CA is a bidirectional TVS diode designed to protect sensitive electronics from high-voltage transients, including electrostatic discharge (ESD), lightning, and inductive load switching. It meets IEC 61000-4-2 (ESD) and IEC 61000-4-5 (surge) standards.  

### **Features:**  
- **Bidirectional protection** (clamps both positive and negative transients).  
- **Low clamping voltage** for improved circuit protection.  
- **Fast response time** (typically <1ps).  
- **High surge capability** (600W peak pulse power).  
- **RoHS compliant** and halogen-free.  
- **Automotive-grade** (AEC-Q101 qualified).  

This diode is commonly used in **power supplies, communication ports, automotive systems, and industrial electronics** for transient suppression.  

(Note: Fairchild Semiconductor was acquired by ON Semiconductor in 2016, but legacy part numbers like SMAJ45CA remain in use.)

Partnumber Manufacturer Quantity Availability
SMAJ45CA MICROSEMI 35000 In Stock

Description and Introduction

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS The SMAJ45CA is a transient voltage suppressor (TVS) diode manufactured by MICROSEMI.  

### **Specifications:**  
- **Peak Pulse Power (10/1000µs):** 400W  
- **Standoff Voltage (VWM):** 38.3V  
- **Breakdown Voltage (VBR):** 42.5V (min) – 47.1V (max)  
- **Clamping Voltage (VC):** 73.2V at 10A  
- **Maximum Reverse Leakage Current (IR):** 1µA  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AC (SMA)  

### **Description:**  
The SMAJ45CA is a bidirectional TVS diode designed to protect sensitive electronics from voltage transients and surges, such as ESD, lightning, and inductive load switching.  

### **Features:**  
- **Bidirectional protection** (clamps both positive and negative transients)  
- **Low clamping voltage** for effective circuit protection  
- **Fast response time** (typically <1ps)  
- **High surge capability**  
- **RoHS compliant**  
- **IEC 61000-4-2 (ESD) compliant**  

This diode is commonly used in telecommunications, industrial, and automotive applications for overvoltage protection.

Partnumber Manufacturer Quantity Availability
SMAJ45CA CONCORD 35000 In Stock

Description and Introduction

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS The SMAJ45CA is a Transient Voltage Suppressor (TVS) diode manufactured by CONCORD.  

**Specifications:**  
- **Voltage - Reverse Standoff (Vr):** 38.3V  
- **Voltage - Breakdown (Vbr):** 42.5V (Min), 47.1V (Max)  
- **Voltage - Clamping (Vc):** 72.5V (Max) @ 37.9A  
- **Peak Pulse Current (Ipp):** 37.9A (8/20µs)  
- **Power - Peak Pulse (Ppp):** 600W  
- **Operating Temperature:** -55°C to +150°C  
- **Package:** DO-214AC (SMA)  

**Descriptions and Features:**  
- Designed for surge protection in electronic circuits.  
- Bi-directional TVS diode for AC or bipolar signal protection.  
- Low clamping voltage for effective transient suppression.  
- Fast response time for ESD and surge protection.  
- RoHS compliant.  
- Suitable for applications like telecommunications, industrial equipment, and power supplies.  

(Source: CONCORD datasheet for SMAJ45CA.)

Partnumber Manufacturer Quantity Availability
SMAJ45CA RECRON 98000 In Stock

Description and Introduction

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS The SMAJ45CA is a bidirectional TVS (Transient Voltage Suppressor) diode manufactured by RECRON.  

### **Specifications:**  
- **Voltage - Reverse Standoff (VRWM):** 45V  
- **Voltage - Breakdown (VBR):** 50V (min)  
- **Voltage - Clamping (VC):** 73.2V at 10A  
- **Peak Pulse Current (IPP):** 10A (8/20µs)  
- **Power - Peak Pulse (PPP):** 400W  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AC (SMA)  

### **Descriptions:**  
- Designed to protect sensitive electronics from voltage transients and ESD events.  
- Bidirectional polarity for protection in both voltage directions.  
- Low clamping voltage for effective transient suppression.  

### **Features:**  
- Fast response time (<1ns).  
- High surge capability.  
- RoHS compliant.  
- Lead-free and halogen-free.  

This information is based on RECRON's specifications for the SMAJ45CA TVS diode.

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