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SMDJ20C Diode: Encyclopedia Entry
Product Overview
The SMDJ20C diode belongs to the category of transient voltage suppressor (TVS) diodes. These diodes are used to protect sensitive electronic components from voltage spikes and transients. The SMDJ20C diode is characterized by its high surge capability, low clamping voltage, and compact surface-mount package. It is typically available in tape and reel packaging with a specified quantity per reel.
Specifications
- Voltage Rating: 20V
- Peak Pulse Power: 3000W
- Package Type: DO-214AB (SMC)
- Quantity: Typically 5000 pieces per reel
Detailed Pin Configuration
The SMDJ20C diode has two pins, anode, and cathode, which are denoted by the markings on the package. The anode is typically marked with a line, while the cathode may be marked with a different symbol or left unmarked.
Functional Features
- Transient Voltage Suppression: Effectively clamps transient voltages to protect downstream components.
- Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on the protected circuitry.
- Low Leakage Current: Ensures minimal power loss during normal operation.
Advantages and Disadvantages
Advantages
- High surge capability
- Low clamping voltage
- Fast response time
Disadvantages
- Higher cost compared to standard diodes
- Sensitive to reverse voltage polarity
Working Principles
The SMDJ20C diode operates based on the principle of avalanche breakdown and metal oxide varistor (MOV) action. When a transient voltage spike occurs, the diode rapidly conducts, diverting the excess energy away from the protected circuitry and limiting the voltage across it.
Detailed Application Field Plans
The SMDJ20C diode finds extensive use in various applications, including: - Telecommunications: Protecting sensitive communication equipment from lightning-induced surges. - Power Supplies: Safeguarding power supply units from voltage transients. - Automotive Electronics: Shielding vehicle electronics from electrical disturbances.
Detailed and Complete Alternative Models
- P6SMB20CA: Similar TVS diode with 20V rating and SMC package.
- 1.5SMC20CA: TVS diode with higher power rating and SMC package.
In conclusion, the SMDJ20C diode offers robust transient voltage suppression capabilities, making it an essential component in safeguarding sensitive electronic circuits from voltage spikes and transients.
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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van SMDJ20C in technische oplossingen
What is the maximum voltage rating of SMDJ20C?
- The maximum voltage rating of SMDJ20C is 20V.
What is the peak pulse power of SMDJ20C?
- The peak pulse power of SMDJ20C is 3000W.
What is the typical clamping voltage of SMDJ20C?
- The typical clamping voltage of SMDJ20C is 32.4V at 10A.
What are the typical applications of SMDJ20C?
- SMDJ20C is commonly used in surge protection for sensitive electronics, such as telecommunications equipment, industrial control systems, and automotive electronics.
What is the operating temperature range of SMDJ20C?
- The operating temperature range of SMDJ20C is -55°C to +150°C.
Does SMDJ20C have a low leakage current?
- Yes, SMDJ20C has a low leakage current, making it suitable for use in high-speed data line protection.
Is SMDJ20C RoHS compliant?
- Yes, SMDJ20C is RoHS compliant, meeting environmental standards.
Can SMDJ20C be used for ESD protection?
- Yes, SMDJ20C can be used for electrostatic discharge (ESD) protection in various electronic devices.
What package type does SMDJ20C come in?
- SMDJ20C is available in a surface mount DO-214AB package.
Are there any recommended layout guidelines for using SMDJ20C in circuit designs?
- Yes, it is recommended to follow the layout guidelines provided in the datasheet to ensure optimal performance of SMDJ20C in circuit designs.