| Allicdata Part #: | F7545TR-ND |
| Manufacturer Part#: |
TPSMF4L30A |
| Price: | $ 0.11 |
| Product Category: | Circuit Protection |
| Manufacturer: | Littelfuse Inc. |
| Short Description: | TVS DIODE 30V 48.4V SOD123FL |
| More Detail: | N/A |
| DataSheet: |  TPSMF4L30A Datasheet/PDF |
| Quantity: | 1000 |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
| 1 +: | $ 0.11000 |
| 10 +: | $ 0.10670 |
| 100 +: | $ 0.10450 |
| 1000 +: | $ 0.10230 |
| 10000 +: | $ 0.09900 |
Specifications
| Voltage - Clamping (Max) @ Ipp: | 48.4V |
| Supplier Device Package: | SOD-123FL |
| Package / Case: | SOD-123F |
| Mounting Type: | Surface Mount |
| Operating Temperature: | -55°C ~ 150°C (TJ) |
| Capacitance @ Frequency: | -- |
| Applications: | Automotive |
| Power Line Protection: | No |
| Power - Peak Pulse: | 400W |
| Current - Peak Pulse (10/1000µs): | 8.3A |
| Series: | Automotive, AEC-Q101, TPSMF4L |
| Voltage - Breakdown (Min): | 33.3V |
| Voltage - Reverse Standoff (Typ): | 30V |
| Unidirectional Channels: | 1 |
| Type: | Zener |
| Moisture Sensitivity Level (MSL): | -- |
| Part Status: | Active |
| Lead Free Status / RoHS Status: | -- |
| Packaging: | Tape & Reel (TR) |
Description
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The TPSMF4L30A diode, belonging to the family of transient voltage suppression (TVS) diodes, is a compact, fast responding, high power voltage surge aid. It is used to prevent catastrophic failure in electronic equipment due to transient voltage events. It has a wide range of applications, including protecting the device from voltage transients in mobile and telecom communications, automobiles, medical and consumer and industrial equipment, and is ideal for use in high humidity or dusty environments. In this article we will discuss the applications fields and working principles of TPSMF4L30A.
Application Fields
The TPSMF4L30A diode is designed to safely absorb high rate of energy up to 2.8kW, withstanding and dissipating transient surges. Its rapid response allows for minimal disruption of normal circuits operation, while its fast recovery helps prevent further damage. It is suitable for data line (IEEE 1394, USB, 10/100BaseT Ethernet etc.) that require very low capacitance protection. The TPSMF4L30A is ideal for wide range of applications, including protection from transient voltage events in mobile and telecom communications, automobiles, consumer and industrial equipment, medical applications and other low energy electronics.
The TPSMF4L30A diode also has an excellent temperature range from -55°C to 125°C and is able to operate in high humidity or dusty environments due to its hermetic epoxy sealed package and its excellent moisture resistance. It is also RoHS compliant for applications requiring lead-free constructions. The TPSMF4L30A is characterized by its low leakage current and minimal capacitance.
Working Principle
The TPSMF4L30A is a Transient Voltage Suppression (TVS) diode which works by clamping the voltage across its terminals to a safe level. TVS diodes are highly sensitive to transient surge events, and will switch on and begin conducting shortly after the voltage level across its terminals exceeds the diode’s breakdown voltage.
Once the diode is activated, it will begin conducting the high peak current and dissipate the transient surge. The diode’s capacitance will increase with increased voltage, and will reduce the high peak current to a safe level by providing additional protection and clamping of the surge. Once the voltage level drops below the diode’s breakdown voltage, the diode will return to its non-conducting state.
The components that make up the TPSMF4L30A diode are a highly ionized gas chamber, a zener diode, and a resistive element. The gas chamber will provide insulation between the zener diode and the resistive element. When the voltage across the diode exceeds it’s breakdown voltage, the gas chamber will conduct electricity to the zener diode. The zener diode will then supply the current to the resistive element, which will limit the surge current, providing the necessary voltage protection and clamping.
The TPSMF4L30A diode is a versatile and efficient device capable of providing robust protection for low-energy electronics exposed to transient surge events. Its fast response time and high energy absorption make it ideal for applications such as mobile phones, laptops, automobiles, consumer electronics, medical equipment and other industry applications. Its hermetic epoxy sealed package and its excellent temperature range and humidity resistance make it an excellent choice for use in challenging environments.
The specific data is subject to PDF, and the above content is for reference
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