SMF18A-HM3-08 Product Overview
Introduction
The SMF18A-HM3-08 is a surface mount, unidirectional TVS (transient voltage suppressor) diode designed to protect sensitive electronics from voltage transients induced by lightning and other transient voltage events. This entry provides a comprehensive overview of the product, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.
Basic Information Overview
- Category: Electronic Components
- Use: Voltage Transient Suppression
- Characteristics: Unidirectional, Surface Mount, High Surge Capability
- Package: SOD-123FL
- Essence: Protection of Sensitive Electronics from Voltage Transients
- Packaging/Quantity: Tape & Reel, 3000 units per reel
Specifications
- Peak Pulse Power: 400W
- Standoff Voltage: 18V
- Breakdown Voltage: 20V
- Clamping Voltage: 29.2V
- Operating Temperature Range: -55°C to +150°C
Detailed Pin Configuration
The SMF18A-HM3-08 features a standard SOD-123FL package with two pins for surface mounting onto PCBs. The pinout configuration is as follows: - Pin 1: Anode - Pin 2: Cathode
Functional Features
- Transient Voltage Suppression: Effectively clamps transient voltages to protect downstream components.
- Fast Response Time: Rapid response to transient events ensures minimal impact on protected circuits.
- High Surge Capability: Capable of withstanding high surge currents without degradation.
Advantages and Disadvantages
Advantages
- Effective protection against voltage transients
- Compact surface mount design
- High surge capability
Disadvantages
- Unidirectional protection may require additional components for bidirectional protection
Working Principles
The SMF18A-HM3-08 operates based on the principle of avalanche breakdown, where it rapidly conducts when the voltage across it exceeds the breakdown voltage, diverting excess current away from sensitive components.
Detailed Application Field Plans
The SMF18A-HM3-08 is widely used in various electronic systems requiring protection from transient voltage events, including: - Consumer Electronics - Telecommunication Equipment - Industrial Control Systems - Automotive Electronics
Detailed and Complete Alternative Models
- Alternative Model 1: SMAJ18A
- Alternative Model 2: SMBJ18A
- Alternative Model 3: SMCJ18A
- Alternative Model 4: P6SMB18A
In conclusion, the SMF18A-HM3-08 offers reliable protection against voltage transients in a compact surface mount package, making it an essential component in safeguarding sensitive electronics across various industries.
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What is SMF18A-HM3-08?
- SMF18A-HM3-08 is a surface mount TVS diode designed to protect sensitive electronics from voltage transients induced by lightning and other transient voltage events.
What are the key features of SMF18A-HM3-08?
- The key features include a low clamping voltage, high surge capability, and a compact surface mount package for easy integration into circuit designs.
What applications can SMF18A-HM3-08 be used in?
- SMF18A-HM3-08 is commonly used in applications such as Ethernet ports, industrial control systems, and telecommunications equipment to provide protection against transient voltage events.
What is the maximum peak pulse power of SMF18A-HM3-08?
- The maximum peak pulse power is typically rated at 400 watts, making it suitable for handling high energy transients.
What is the operating temperature range of SMF18A-HM3-08?
- The operating temperature range is usually -55°C to +150°C, allowing for reliable performance in a wide range of environments.
How does SMF18A-HM3-08 compare to other TVS diodes in terms of performance?
- SMF18A-HM3-08 offers a good balance of clamping voltage, surge capability, and response time, making it a popular choice for many technical solutions.
Can SMF18A-HM3-08 be used in automotive applications?
- Yes, SMF18A-HM3-08 is often used in automotive electronics to protect against voltage transients generated by the vehicle's electrical system.
What are the recommended layout and placement guidelines for SMF18A-HM3-08?
- It is recommended to place the diode as close as possible to the protected circuitry and to minimize the length and impedance of the traces connecting the diode to the protected circuit.
Does SMF18A-HM3-08 comply with any industry standards?
- Yes, SMF18A-HM3-08 is often compliant with industry standards such as IEC 61000-4-2 for electrostatic discharge (ESD) protection.
Where can I find detailed specifications and application notes for SMF18A-HM3-08?
- Detailed specifications and application notes can typically be found in the product datasheet provided by the manufacturer or on their official website.