FST6380M Equivalent & Substitute Parts Reference

Part Overview

The FST6380M from GeneSiC Semiconductor is a Schottky diode module intended for rectification applications, featuring a 1 pair common cathode configuration, 80 V maximum DC reverse voltage, and 30A average rectified current per diode. The product is classified as obsolete, making it necessary to identify alternative models with matching or superior characteristics to support ongoing designs and maintenance activities in the Diodes, Rectifiers category.

Key Parameters

Manufacturer Part Number	Diode Configuration	Technology	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io) (per Diode)	Voltage - Forward (Vf) (Max) @ If	Speed	Current - Reverse Leakage @ Vr	Operating Temperature - Junction	Mounting Type	Package / Case
FST6380M	1 Pair Common Cathode	Schottky	80 V	30A	840 mV @ 30 A	Fast Recovery =< 500ns, > 200mA (Io)	1 mA @ 80 V	-55°C ~ 150°C	Chassis Mount	D61-3M

Substitute Part Grouping Explanation

Substitute selection for the FST6380M is based strictly on the following key parameters: diode configuration (1 pair common cathode), Schottky technology, maximum DC reverse voltage (80 V), average rectified current per diode (≥30A), recovery speed, reverse leakage current, chassis mounting, and comparable case/package formats. Only parts matching or exceeding these thresholds are included as substitutes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Category	Diode Configuration	Technology	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io) (per Diode)	Voltage - Forward (Vf) (Max) @ If	Speed	Current - Reverse Leakage @ Vr	Operating Temperature - Junction	Mounting Type	Package / Case	Product Status
FST6380M	GeneSiC Semiconductor	Diodes, Rectifiers	1 Pair Common Cathode	Schottky	80 V	30A	840 mV @ 30 A	Fast Recovery =< 500ns, > 200mA (Io)	1 mA @ 80 V	-55°C ~ 150°C	Chassis Mount	D61-3M	Obsolete
83CNQ080	SMC Diode Solutions	Diodes, Rectifiers	1 Pair Common Cathode	Schottky	80 V	40A	1 V @ 40 A	Fast Recovery =< 500ns, > 200mA (Io)	1.5 mA @ 80 V	-55°C ~ 175°C	Chassis Mount	PRM2	Active

Engineering Selection Recommendations

The FST6380M is obsolete and no longer in production. The 83CNQ080 from SMC Diode Solutions is an active product within the Diodes, Rectifiers category and is ROHS3 compliant. Selection should be based on product availability and regulatory compliance. Certification status and inventory should be considered to ensure supply continuity.

Frequently Asked Questions (FAQ)

Q1: What are the critical criteria for substituting FST6380M in my design?
A1: The main criteria are diode configuration (1 pair common cathode), Schottky technology, maximum DC reverse voltage (80V), average rectified current (≥30A), speed (fast recovery), operating temperature range, and chassis mount compatibility.

Q2: Is package/case compatibility required for a substitute?
A2: Yes, the substitute must have a chassis mount package/case. Differences in mounting hole pattern or footprint may require review at the mechanical design level.

Q3: Is the 83CNQ080 an exact substitute for FST6380M?
A3: 83CNQ080 matches all specified key parameters and is suitable as an equivalent substitute within the allowed substitution criteria.

Q4: Does compliance status affect substitute selection?
A4: Yes, 83CNQ080 meets ROHS3 compliance. Compliance standards should be verified based on application requirements.

Q5: What is the importance of product status in substitute selection?
A5: An obsolete status indicates supply risk. Selecting an active substitute, such as 83CNQ080, addresses long-term availability concerns.

Q6: Are there differences in maximum current and forward voltage?
A6: The 83CNQ080 offers a higher average rectified current (40A vs. 30A), and a higher maximum forward voltage (1V vs. 840mV) at the designated test current. These parameters are within accepted substitution thresholds as outlined.

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