SMDJ78
Product Overview
SMDJ78 belongs to the category of TVS (Transient Voltage Suppressor) diodes. These diodes are used to protect sensitive electronics from voltage spikes and transient surges. The SMDJ78 is characterized by its high surge capability, low clamping voltage, and fast response time. It is typically packaged in a surface-mount package and is available in various quantities per package.
Basic Information
- Category: TVS Diode
- Use: Protection against voltage spikes and transient surges
- Characteristics: High surge capability, low clamping voltage, fast response time
- Package: Surface-mount
- Essence: Protecting sensitive electronics
- Packaging/Quantity: Available in reels or tape and reel packaging, with varying quantities per package
Specifications
The SMDJ78 has the following specifications: - Peak Power Dissipation: - Breakdown Voltage: - Clamping Voltage: - Operating Temperature Range: - Storage Temperature Range:
Detailed Pin Configuration
The detailed pin configuration of the SMDJ78 diode includes the identification of the cathode and anode terminals, as well as any additional terminals for special features or functions.
Functional Features
The SMDJ78 offers the following functional features: - High Surge Capability: Ability to withstand high surge currents without degradation. - Low Clamping Voltage: Provides effective protection by clamping the voltage during transient events. - Fast Response Time: Rapid reaction to transient surges, minimizing the risk of damage to connected electronics.
Advantages and Disadvantages
Advantages
- Effective protection against voltage spikes and transient surges
- High surge capability
- Fast response time
Disadvantages
- May exhibit leakage current in certain operating conditions
- Limited to specific voltage and current ratings
Working Principles
The SMDJ78 operates based on the principle of avalanche breakdown. When a transient surge occurs, the diode rapidly conducts, diverting the excess energy away from the protected circuit. This action helps to limit the voltage across the circuit, preventing damage to the connected electronics.
Detailed Application Field Plans
The SMDJ78 is commonly used in various applications, including: - Telecommunications: Protecting communication equipment from lightning-induced surges - Industrial Electronics: Safeguarding control systems and automation equipment from power disturbances - Consumer Electronics: Shielding sensitive devices such as smartphones and tablets from voltage transients
Detailed and Complete Alternative Models
Some alternative models to the SMDJ78 include: - P6SMBJ78CA: Similar TVS diode with a different package and characteristics - 1.5KE78A: Axial-leaded TVS diode suitable for through-hole mounting - DF3A6.8CTP: Compact TVS diode array offering multi-channel protection
In conclusion, the SMDJ78 TVS diode provides effective protection against voltage spikes and transient surges, making it an essential component in safeguarding sensitive electronics across various industries.
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What is SMDJ78?
- SMDJ78 is a type of surface mount transient voltage suppressor diode used to protect electronic circuits from overvoltage transients.
What is the maximum working voltage for SMDJ78?
- The maximum working voltage for SMDJ78 is 78V.
What is the peak pulse power handling capability of SMDJ78?
- SMDJ78 has a peak pulse power handling capability of 3000W.
What are the typical applications of SMDJ78?
- SMDJ78 is commonly used in various technical solutions such as power supplies, telecommunications equipment, automotive electronics, and industrial control systems to protect against voltage surges and spikes.
What is the operating temperature range for SMDJ78?
- The operating temperature range for SMDJ78 is typically -55°C to +150°C.
How does SMDJ78 provide overvoltage protection?
- SMDJ78 clamps the voltage across the circuit it is protecting by diverting excess current away from sensitive components when an overvoltage event occurs.
What is the package type for SMDJ78?
- SMDJ78 is available in a surface mount package, typically SMA or SMB.
Can SMDJ78 be used for ESD protection?
- Yes, SMDJ78 can be used for electrostatic discharge (ESD) protection in sensitive electronic devices and circuits.
What is the response time of SMDJ78 during an overvoltage event?
- SMDJ78 has a very fast response time, typically in the nanosecond range, providing quick protection against voltage transients.
Are there any specific layout considerations when using SMDJ78 in a circuit?
- It is important to minimize the length and impedance of the traces connecting SMDJ78 to the circuit it is protecting to ensure optimal performance. Additionally, proper grounding and placement near the protected components are important considerations.