Overview
The SMF28AT1G is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc. This component is designed to provide excellent overvoltage protection in various electronic systems. Despite being obsolete and no longer manufactured, it remains relevant for existing designs and legacy systems. The SMF28AT1G is known for its high surge capability, low zener impedance, and fast response time, making it suitable for applications requiring robust protection against transient voltages.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | SMF28AT1G |
| Manufacturer | Littelfuse Inc. |
| Package | SOD123FL |
| VWM (Working Voltage) | 28V |
| Vc (Clamping Voltage) | 45.4V |
| Peak Pulse Current (Ipp) | Not specified in available sources, but typically high for TVS diodes |
| Tolerance | ±5% |
| Power Rating | Not specified in available sources, but typically in the range of kW for TVS diodes |
Key Features
- Excellent clamping capability to protect against transient voltages.
- High surge capability to handle sudden spikes in voltage.
- Low zener impedance for effective voltage regulation.
- Fast response time to quickly react to transient events.
- Compact SOD123FL package, ideal for use in cellular and other space-constrained applications.
Applications
The SMF28AT1G TVS diode is suitable for various applications requiring overvoltage protection, including:
- Cellular devices and other mobile electronics.
- Automotive systems where transient voltages are common.
- Industrial control systems and equipment.
- Consumer electronics that need protection against power surges and spikes.
Q & A
- What is the primary function of the SMF28AT1G? The primary function of the SMF28AT1G is to provide overvoltage protection by clamping transient voltages.
- What is the working voltage (VWM) of the SMF28AT1G? The working voltage (VWM) of the SMF28AT1G is 28V.
- What is the clamping voltage (Vc) of the SMF28AT1G? The clamping voltage (Vc) of the SMF28AT1G is 45.4V.
- What package type does the SMF28AT1G use? The SMF28AT1G uses the SOD123FL package.
- Is the SMF28AT1G still in production? No, the SMF28AT1G is obsolete and no longer manufactured.
- What are some common applications for the SMF28AT1G? Common applications include cellular devices, automotive systems, industrial control systems, and consumer electronics.
- What are the key features of the SMF28AT1G? Key features include excellent clamping capability, high surge capability, low zener impedance, and fast response time.
- Why is the SMF28AT1G suitable for cellular devices? The SMF28AT1G is suitable for cellular devices due to its small size and high performance in protecting against transient voltages.
- What is the tolerance of the SMF28AT1G? The tolerance of the SMF28AT1G is ±5%.
- Where can I find more detailed specifications for the SMF28AT1G? Detailed specifications can be found in the datasheet available from Littelfuse Inc. or other authorized distributors.
