Vishay Intertechnology Unveils Ten New Silicon Carbide Schottky Diodes

The merged PIN Schottky (MPS) design of the units reduce switching losses at high temperatures, making them applicable to deployments in high heat environments.

Members of Vishay’s new series of MPS Diodes. Image courtesy of Vishay.

 

The new series of diodes, as depicted in the above illustration, is available as two leaded single unit packages or as dual units with three leads, one of which connects to  a common cathode

These devices feature positive forward voltage temperature coefficients, making them easy to parallel. Switching behavior is temperature invariant.

 

Characteristics of Silicon Carbide (SiC) MPS Diodes

MPS diodes shield the electric field from the Schottky barrier. This serves to reduce leakage currents, while also increasing surge current capability by means of hole injection. MPS diodes can handle the same amount of current as can pure silicon Schottky devices with only a slight increase in the forward voltage drop, and on the plus side, they do feature a notably higher degree of ruggedness. 

 

Members of the Series

In the two tables below, left-clicking the part number in the leftmost column of the table opens up a detailed datasheet for the specific device.

 

Single Diodes

There are seven members of the series that are composed of a single diode. They are:

 

Part Number	Average rectified forward current	Non-repetitive  peak forward surge current. At 25 °C, tP =10 ms, ½ sine wave	Forward voltage (typ.) at stated average rectified forward current and TJ = 150°C
			Forward voltage	IF (A)
VS-C04ET07T-M3	4 amps	26 amps	1.75 volts	1.75 volts
VS-C06ET07T-M3	6 amps	39 amps	1.7 volts	6 amps
VS-C08ET07T-M3	8 amps	57 amps	1.7 volts	8 amps
VS-C10ET07T-M3	10 amps	68 amps	1.75 volts	10 amps
VS-C12ET07T-M3	12 amps	80 amps	1.65 volts	12 amps
VS-C16ET07T-M3	16 amps	120 amps	1.65 volts	16 amps
VS-C20ET07T-M3	20 amps	160 amps	1.6 volts	20 amps

 

Configuration of single diode versions. Image courtesy of VS-C40CP07L-M3 datasheet

 

Dual Diodes

There are three members of the series that are composed of two diodes are listed below. In this table the average rectified forward currents are for each of the two diodes within the package.

 

Part Number	Average rectified forward current	Non-repetitive  peak forward surge current. At 25 °C, tP =10 ms, ½ sine wave	Forward voltage (typ.) at stated average rectified forward current and TJ = 150°C
			Forward voltage	IF (A)
VS-C16CP07L-M3	8 amps	53 amps	1.7 volts	8 amps
VS-C20CP07L-M3	10 amps	64 amps	1.75 volts	10 amps
VS-C40CP07L-M3	20 amps	160 amps	1.55 volts	20 amps

 

Configuration of dual diode versions. Image courtesy of VS-C20CP07L-M3 datasheet

 

Applications

Power factor correction and for high frequency rectification in high voltage power supplies and LLC converters used in:

• Solar inverters
• Servers
• Telecom equipment
• Uninterruptible  power supplies

 

Physical Considerations

• The new MPS diodes can operate at temperatures of up to 175℃
• The units meet the JESD 201 class 1A whisker test 
• Single diode units come in 2L TO-220AC packages
• Dual diode components are available in TO-247AD 3L packages

 

Environmental 

• RoHS compliant
• Halogen Free