IC Phoenix logo

Home ›  S  › S35 > SMAJ40A

SMAJ40A from CONCORD

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

SMAJ40A

Manufacturer: CONCORD, FAIRCHILD, MICROSEMI

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS
Partnumber Manufacturer Quantity Availability
SMAJ40A CONCORD, FAIRCHILD, MICROSEMI 113000 In Stock

Description and Introduction

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS The **SMAJ40A** is a **Transient Voltage Suppressor (TVS) Diode** manufactured by **Microsemi** (now part of **Microchip Technology**). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Voltage - Reverse Standoff (Vₑ):** 40V  
- **Voltage - Breakdown (VBR):** 44.4V (min), 49.1V (max)  
- **Voltage - Clamping (Vc):** 64.5V at 10A (Iₚₚ)  
- **Peak Pulse Current (Iₚₚ):** 10A (8/20µs waveform)  
- **Power - Peak Pulse (Pₚₚ):** 400W  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** **DO-214AC (SMA)**  

### **Descriptions:**  
- Designed to protect sensitive electronics from **transient voltage spikes** (ESD, lightning, inductive switching).  
- **Unidirectional** TVS diode (clamps positive voltage spikes only).  
- **Low leakage current** and **fast response time** (typically <1ps).  

### **Features:**  
- **High surge capability** (up to 10A peak pulse current).  
- **RoHS compliant**.  
- **AEC-Q101 qualified** for automotive applications.  
- **Low incremental surge resistance** for better clamping performance.  

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

(Source: Microsemi datasheet)

Application Scenarios & Design Considerations

SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS

Alternative Part Number

  • P4SMAJ40A --: Same 400W SMA-pack unidirectional TVS with 40V standoff and identical clamping behavior; widely available drop-in replacement.
  • SMAJ40A-E3/61T --: Vishay's SMAJ series 400W TVS in SMA package with matching 40V working voltage and breakdown range; reliable second source.
  • SMAJ40A-TR --: Equivalent 400W unidirectional transient voltage suppressor in SMA outline with same 40V standoff; good third option for supply flexibility.
  • P4SMA40A --: Same SMA package unidirectional TVS with 40V standoff and comparable clamping, direct functional replacement.
  • SMBJ40A --: Similar 40V standoff unidirectional TVS in SMB package; higher surge rating and widely available, slight footprint change.
  • 1SMA40AT3G --: SMA-packaged 40V unidirectional TVS diode with equivalent electrical characteristics and drop-in compatibility.
  • P6SMB40A --: 600W unidirectional TVS with 40V standoff in SMB package, widely available and electrically similar for transient protection.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips