SS54 DIODE SCHOTTKY 5A 40V SMA[Video+FAQ]
SS54 datasheet pdf and Unclassified product details from MDD(Microdiode Electronics) stock available at Utmel









With a low voltage drop of 0.55V and a high forward current of 5A, the SS54 is a high-power surface-mount Schottky Rectifier. This article is going to talk about the features, applications, and equivalents of SS54.

How to check smd Diode with Multimeter
Overview of SS54
The SS54 is a high-power surface-mount Schottky Rectifier with a low voltage drop of 0.55V and a high forward current of 5A. This diode has high efficiency and can handle a 150A surge current. It's typically found in low-voltage, high-frequency inverters, freewheeling, and polarity protection systems. For low voltage/high-frequency inverters, freewheeling, and polarity protection applications, the SS54 Schottky Barrier Rectifier Diode is used.
SS54 Features
Metal-semiconductor junction with guarding
Epitaxial construction
Low forward voltage drop
High current capability
Plastic material has UL flammability classification 94V-0
For use in low voltage, high-frequency inverters, freewheeling, and polarity protection applications
SS54 Dimensions

SS54 Dimensions
SS54 Pinout

SS54 Pinout
Pin Descriptions
| Pin No. | Pin Name | Description |
| 1 | Anode | Current always Enters through Anode |
| 2 | Cathode | Current always Exits through Cathode |
SS54 CAD Model

SS54 Symbol

SS54 Footprint
Specifications
- TypeParameter
- Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
SMC(DO-214AB) - Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Tape & Reel (TR) - Voltage - Forward (Vf) (Max) @ If
The parameter "Voltage - Forward (Vf) (Max) @ If" refers to the maximum voltage drop across a diode when it is forward-biased and conducting a specified forward current (If). It indicates the maximum potential difference the diode can withstand while allowing current to flow in the forward direction without breaking down. This value is crucial for designing circuits as it helps determine how much voltage will be lost across the diode during operation. Higher Vf values can lead to reduced efficiency in power applications, making this parameter essential for optimizing circuit performance.
550mV @ 5A - Voltage - DC Reverse (Vr) (Max)
Voltage - DC Reverse (Vr) (Max) is a parameter in electronic components that specifies the maximum reverse voltage that the component can withstand without breaking down. This parameter is crucial for components like diodes and transistors that are often subjected to reverse voltage during operation. Exceeding the maximum reverse voltage can lead to the component failing or getting damaged. Designers need to consider this parameter when selecting components to ensure the reliability and longevity of their circuits.
40V - Current - Average Rectified (Io)
The parameter "Current - Average Rectified (Io)" in electronic components refers to the average value of the rectified current flowing through the component. This parameter is important in determining the average power dissipation and thermal considerations of the component. It is typically specified in datasheets for diodes, rectifiers, and other components that handle alternating current (AC) and convert it to direct current (DC). Understanding the average rectified current helps in selecting the appropriate component for a given application to ensure reliable operation and prevent overheating.
5A - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
RoHS Compliant
SS54 Rating and Characteristics Curve

SS54 Maximum Ratings and Electrical Characteristics
| Characteristics | Symbol | Values | |
| Max. Recurrent Peak Reverse Voltage | Vrrm | 40 | V |
| Max. RMS Voltage | Vrms | 28 | |
| Max. DC Blocking Voltage | V DC | 40 | |
| Maximum Average Forward Rectified Current 0.375″ (9.5mm) Lead Lengths at Tl = 95°C | I (AV) | 5 | A |
| Peak Forward Surge Current A 8.3 ms Single Half Sine-wave Super Imposed on Rated Load (JEDEC Method) | Ifsm | 150 | |
| Max. Forward Voltage at 5A DC | Vf | 0.55 | V |
| Max. DC Reverse Current at Tj = 25°C Rated DC Blocking Voltage at Tj = 100°C | Ir | 1 50 | mA |
| Typical Junction Capacitance (Note 1) | Cj | 500 | pF |
| Typical Thermal Resistance (Note 2) | RθJA | 15 | °C / W |
| Operating Temperature Range | Tj | -55 to +125 | °C |
| Storage Temperature Range | Tstg | -55 to +150 |
SS54 Datasheet
SS54 Package information

SS54 Package information
Popularity by Region
What is SS54?
The SS54 is a high-power surface-mount Schottky Rectifier with a low voltage drop of 0.55V and a high forward current of 5A. This diode has high efficiency and can handle a 150A surge current. It's typically found in low-voltage, high-frequency inverters, freewheeling, and polarity protection systems.
What is a Schottky barrier rectifier diode?
The symbol for electronic devices. The Schottky diode, also known as the Schottky barrier diode or hot-carrier diode, is a semiconductor diode formed by the junction of a semiconductor and a metal. It is named after German physicist Walter H. Schottky. It has a low forward voltage drop and switches very quickly.
What is Schottky diode used for?
Schottky diodes are utilized in high-frequency applications because of their low turn-on voltage, quick recovery time, and low energy loss. Schottky diodes can correct a current because of these features, which allow for a fast change from conducting to blocking states.
What is the difference between diode and Schottky diode?
A 2V DC source is used to power both. The standard diode consumes 0.7 volts, leaving just 1.3 volts to power the load. The Schottky diode consumes only 0.3V due to its smaller forward voltage drop, allowing 1.7V to power the load. The Schottky diode would be the sole option if our load demanded 1.5V.
What’s the voltage of SS54?
40V.
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