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SMCJ85CA from CONCORD

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SMCJ85CA

Manufacturer: CONCORD, FAIRCHILD, MICROSEMI

Zener TVSs

Partnumber Manufacturer Quantity Availability
SMCJ85CA CONCORD, FAIRCHILD, MICROSEMI 113000 In Stock

Description and Introduction

Zener TVSs The SMCJ85CA is a transient voltage suppressor (TVS) diode manufactured by **Fairchild Semiconductor**. Here are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Voltage Rating (Vrwm):** 85V  
- **Breakdown Voltage (Vbr):** 94.4V (min) to 104V (max)  
- **Peak Pulse Current (Ipp):** 35.6A (8/20µs waveform)  
- **Clamping Voltage (Vc):** 137V at Ipp  
- **Power Dissipation (Pppm):** 1500W  
- **Junction Capacitance (Cj):** 1000pF (typical)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AB (SMC)  

### **Descriptions:**  
- Designed for **surge protection** in electronic circuits.  
- Protects sensitive components from **ESD, lightning, and inductive switching transients**.  
- **Bi-directional** (CA suffix) for clamping both positive and negative voltage spikes.  

### **Features:**  
- **Low Clamping Voltage** for effective transient suppression.  
- **Fast Response Time** (typically <1ns).  
- **High Surge Capability** for robust protection.  
- **RoHS Compliant** (lead-free).  

This diode is commonly used in **telecom, automotive, and industrial applications** where transient voltage protection is critical.  

(Source: Fairchild Semiconductor Datasheet)

Application Scenarios & Design Considerations

Zener TVSs

Alternative Part Number

  • 1.5SMC91CA --: Same SMC (DO-214AB) package bidirectional TVS with comparable 1500W peak pulse rating and close standoff voltage, widely available and directly drop-in compatible.
  • SMDJ85CA --: Bidirectional 3000W TVS in SMC package with matching 85V standoff, offers higher surge capability as a robust upgrade in the same footprint.
  • P6SMB91CA --: Bidirectional TVS with similar clamping characteristics in SMB package; slightly smaller footprint but electrically suitable for lower-power protection designs.
  • SMAJ85CA --: Bidirectional TVS with the same 85V standoff voltage in a smaller SMA package; suitable when lower surge capability is acceptable and board space is limited.

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