SS14 is a Schottky diode, also known as Schottky barrier diode or fast recovery diode. This diode is a semiconductor device.

The working principle of Schottky diodes is based on the Schottky barrier, which is formed by the contact between metal and semiconductor. This barrier creates an outward electric field, causing current to flow in one direction. Schottky diodes have faster recovery speeds compared to ordinary rectifier diodes and therefore can be used in high frequency applications.

SS14 diode is a single-chip integer diode with good performance. It is a commonly used component by circuit designers and can effectively achieve the stability, reliability and durability of the circuit.

Ⅰ.Characteristics of SS14

•Schottky diodes are commonly used in high frequency circuits, power circuits, switching power supplies, inverters, motor drives and other applications that •require fast recovery and low voltage drop
•Schottky Barrier Rectifier
•Glass-Passivated Junctions
•Guard Ring Protection
•High Current Capability
•Extremely Low Thermal Resistance
•Low Forward VoltageReverse Energy Tested
•High-Current Capability, Low VF
•These Devices are Pb−Free, Halogen Free and are RoHS Compliant
•Schottky diodes have a lower forward voltage drop when forward biased, which helps reduce power dissipation
•It has a higher reverse breakdown voltage and can work under higher reverse voltage conditions, providing better reverse voltage protection

Ⅱ.Specification parameters of SS14

•Installation style:SMD/SMT
•Rated voltage (DC): 40.0 V
•Rated current: 1.00 A
•Number of pins: 2
•Forward voltage: 500mV @1A
•Thermal resistance: 88℃/W (RθJA)
•Forward current: 1 A
•Maximum forward surge current (Ifsm): 40 A
•Forward voltage (Max): 500 mV
•Forward current (Max): 1 A
•Operating temperature (Max): 125 ℃
•Operating temperature (Min): -65 ℃
•Operating junction temperature (Max): 125 ℃
•Number of pins: 2

Ⅲ.Basic working principle of SS14 diode

1. Schottky barrier: The key feature of a Schottky diode is the Schottky barrier formed between the metal and the semiconductor material. When a metal comes into contact with a semiconductor, electrons flow from the semiconductor material to the metal. In this process, the electrons will form a potential barrier under certain conditions. This potential barrier leads to a special electron flow behavior.
2. Fast recovery: Compared with ordinary rectifier diodes, Schottky diodes recover faster. This means that when switching from the on state to the off state, it can return to normal operation more quickly. Therefore, Schottky diodes are suitable for high frequency applications.
3. Forward bias: When a forward voltage is applied to the anode of the SS14 diode (usually connected to the metal terminal), this voltage reduces the height of the Schottky barrier, allowing electron flow to move from the metal to the semiconductor direction. At this time, the diode is in a conducting state.
4. Reverse bias: When a reverse voltage is applied to the anode of the SS14 diode, this voltage increases the height of the Schottky barrier, preventing electrons from moving from the metal to the semiconductor. At this time, the diode is in a cut-off state.

IV.Main application areas of SS14 diodes

1. Motor Driver: In a motor driver, SS14 diodes are used to rectify the current generated by the motor. Since the current it outputs is only in one direction, it ensures that the current can only flow in one direction.
2. Power circuit: SS14 diodes are commonly used in switching power supplies and DC-DC converters. Because they have fast recovery times and low forward voltage drops, they can effectively reduce power consumption in power supply circuits and improve efficiency.
3. High-frequency applications: Due to its fast recovery characteristics, SS14 diodes can be used in high-frequency circuits, such as wireless communication equipment, radio frequency (RF) circuits, etc. This type of product has fast switching speed and adapts to the switching speed requirements of high-frequency signals.
4. Inverter: An inverter is a device that converts DC power into AC power. In inverter circuits, SS14 diodes can be used as reverse current protectors to prevent reverse current flow when the inverter fails.
5. LED driver: In LED lighting applications, SS14 diodes can be used to rectify current to ensure that the LED works in the correct current direction.
6. Charge and discharge protection: In charge and discharge circuits, SS14 diodes can be used to prevent reverse current flow, thereby protecting the battery or power supply.
7. Switching power supply: In various switching power supplies, SS14 diodes are used for rectification and reverse current protection to ensure the stability of the power output.

Ⅴ. Typical performance characteristics of SS14

1. Forward Current Derating Curve

2. Forward Voltage Characteristics

3.Non-Repetitive Surge Current

4.Total Capacity

5. Low-Current Forward Voltage Characteristics

Ⅵ.Package type and size of SS14 diode

1.SOD-123 package: SOD-123 is a surface mount (SMT) package that is smaller than traditional plastic packages and suitable for compact circuit board designs. Its dimensions are approximately 2.1mm x 1.6mm.
2.DO-214AC (SMA) package: This is a surface mount package, also called SMA package. It is sized under the DO-214AC standard and is usually larger for applications that require higher current handling capabilities. Dimensions are approximately 4.57mm x 2.29mm.

3.SMA package: SMA (Surface Mount Axial) is a package similar to traditional diodes, but suitable for surface mounting. It is usually smaller and suitable for high-density circuit boards. Dimensions are approximately 3.94mm x 2.08mm.

Ⅶ.Replacement model of SS14

1.1N5817: This is a common 1A Schottky diode with similar electrical characteristics. It is widely used in high frequency and low voltage drop applications.
2.BAT54: It is a bidirectional (dual diode) Schottky diode, which is the most commonly used bidirectional rectifier device in signal processing circuits. BAT54 can be used as an amplifier for signal amplification and filtering, and can also be used to drive some applications that require reverse rectification.
3.1N5822: This is a 2A Schottky diode suitable for some applications that require higher current handling capabilities. It also has quick recovery properties.
4.SS16: SS16 is a variant of the SS14 series with similar characteristics but may have different packaging or current handling capabilities.
5.SB160: SB160 is a 1A Schottky diode for general purpose rectification applications.
6.MBR0530: This is a low-power, low-voltage drop Schottky diode suitable for portable devices and low-power applications.

Frequently Asked Questions

1.What are the temperature characteristics of SS14 diodes?
SS14 diodes typically have a wide operating temperature range, typically between -55 degrees Celsius and +150 degrees Celsius. This makes it suitable for most general applications. The turn-on voltage usually changes slightly with temperature. In general, the turn-on voltage may increase slightly as temperature increases, but this change is usually relatively small. Reverse breakdown voltage usually changes less at higher temperatures. This helps ensure the diode's reliability in high temperature environments.

2. What is a SS14 diode?
The SS14 Schottky diode in the DO-214AC (SMA) is a surface mount version of the 1N5819. With its low profile package, it is ideal for automated placement. SS14 has overvoltage protection function, low power consumption and high efficiency. SS14 is also known for its low forward voltage drop and high surge capability.

3.What is the difference between SS34 and SS14?
The difference between Schottky diodes SS14, SS24 and SS34 is the maximum forward rectified current. SS14 is 1A, SS24 is 2A, and SS34 is 3A.