Overview
The SMF24A, produced by Littelfuse Inc., is a Transient Voltage Suppressor (TVS) diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. This component is part of the SMF series, which is known for its compact footprint and low height profile, making it ideal for surface-mounted applications.
Key Specifications
| Property | Value |
|---|---|
| VR (Vso) | 24 |
| Watts (W) | 200 |
| IPP 10x1000µs (A) | 5.1 |
| MIN VBR@IT (V) | 26.7 |
| MAX VBR@IT (V) | 29.5 |
| Vc (V) | 38.9 |
| IT (mA) | 1 |
| Ir@Vr (µA) | 1 |
| Operating Temperature Max (°C) | 150 |
| Polarity | Unipolar |
| Package | SOD-123FL |
| Peak Pulse Power - 10x1000 | 200 |
| Surge Life | 5.1 |
| Tolerance Percent | 5 |
Key Features
- Compact SOD-123FL package with a low height profile of 1.1mm, optimizing board space.
- High peak pulse power capability of 200 W at 10/1000µs waveform.
- Low inductance and excellent clamping capability.
- High temperature reflow soldering guaranteed up to 260°C/430sec.
- Compliant with IEC-61000-4-2 ESD 30 kV (Air), 30 kV (Contact) for ESD protection.
- Typical failure mode is short from over-specified voltage or current.
Applications
The SMF24A is widely used in various applications to protect sensitive electronic components. Key applications include:
- Protection of I/O interfaces, VCC buses, and other vulnerable circuits in mobile phones, portable devices, business machines, and power supplies.
- ESD protection of data lines in accordance with IEC 61000-4-2.
Q & A
- What is the peak pulse power capability of the SMF24A?
The SMF24A has a peak pulse power capability of 200 W at 10/1000µs waveform. - What is the maximum operating temperature of the SMF24A?
The maximum operating temperature is 150°C. - What package type does the SMF24A use?
The SMF24A uses the SOD-123FL package. - Is the SMF24A compliant with any ESD standards?
Yes, it is compliant with IEC-61000-4-2 ESD 30 kV (Air), 30 kV (Contact). - What is the typical failure mode of the SMF24A?
The typical failure mode is short from over-specified voltage or current. - Can the SMF24A be used in high-temperature reflow soldering processes?
Yes, it is guaranteed for high-temperature reflow soldering up to 260°C/430sec. - What are some common applications of the SMF24A?
It is used to protect I/O interfaces, VCC buses, and other vulnerable circuits in various electronic devices. - Does the SMF24A have low inductance?
Yes, it has low inductance and excellent clamping capability. - What is the polarity of the SMF24A?
The SMF24A is a unipolar TVS diode. - Is the SMF24A RoHS compliant?
Yes, it is RoHS compliant, but specific compliance details should be checked from the manufacturer's documentation.
