Equivalent & Substitute Parts Reference: FST7320M

Part Overview

The FST7320M by GeneSiC Semiconductor is a Schottky diode module classified under Diodes, Rectifiers, designed as a diode array with a 1 pair common cathode configuration. It features a DC reverse voltage of 20 V and an average rectified current of 35A per diode, optimized for fast recovery applications. The product is offered in the D61-3M chassis mount package. Its status is Obsolete, necessitating the identification of suitable alternate models to maintain system functionality and ensure continued sourcing.

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	Moisture Sensitivity Level (MSL)	ECCN	HTSUS
FST7320M	1 Pair Common Cathode	Schottky	20 V	35A	700 mV @ 35 A	Fast Recovery =< 500ns, > 200mA (Io)	1 mA @ 20 V	-55°C ~ 150°C	Chassis Mount	D61-3M	1 (Unlimited)	EAR99	8541.10.0080
87CNQ020	1 Pair Common Cathode	Schottky	20 V	40A	510 mV @ 40 A	Fast Recovery =< 500ns, > 200mA (Io)	5.5 mA @ 20 V	-55°C ~ 150°C	Chassis Mount	PRM2	1 (Unlimited)	EAR99	8541.10.0080

Substitute Part Grouping Explanation

Substitution is strictly based on matching or exceeding essential electrical and mechanical parameters. Allowed parameters for this product category include diode configuration, technology (Schottky), DC reverse voltage rating, average rectified current, forward voltage, reverse leakage current, recovery speed, operating temperature range, mounting type, package/case, and compliance status. Only parts that meet or surpass these parameters in their respective categories can be considered as direct substitutes.

Key parameters for substitution:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 20 V
Current - Average Rectified (Io): ≥ 35A
Voltage - Forward (Vf) (Max) @ If
Speed
Current - Reverse Leakage @ Vr
Operating Temperature - Junction
Mounting Type: Chassis Mount
Package / Case

Parameter Comparison

Parameter	FST7320M	87CNQ020
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	20 V	20 V
Current - Average Rectified (Io) (per Diode)	35A	40A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 35 A	510 mV @ 40 A
Speed	Fast Recovery =< 500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	1 mA @ 20 V	5.5 mA @ 20 V
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C
Mounting Type	Chassis Mount	Chassis Mount
Package / Case	D61-3M	PRM2
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8541.10.0080	8541.10.0080

Engineering Selection Recommendations

Since FST7320M is classified as Obsolete, selection of substitute components is necessary for continued system support. The part 87CNQ020 from SMC Diode Solutions is listed as Active and holds an identical compliance level for ECCN and HTSUS, with both parts meeting MSL 1 (Unlimited). Substitute selection is thus supported solely by product status and certification parity per the provided data.

Frequently Asked Questions (FAQ)

Q1: What are the essential criteria for substituting Schottky diode modules in this category?
A1: Essential criteria for substitution include diode configuration, technology type, voltage and current ratings, speed, reverse leakage current, operating temperature range, mounting type, and package/case.

Q2: Is the package/case D61-3M interchangeable with PRM2?
A2: D61-3M and PRM2 are distinct package/case formats. Compatibility depends exclusively on mechanical fit and mounting requirements as specified in the provided data.

Q3: How does compliance status influence substitute qualification?
A3: Both FST7320M and 87CNQ020 meet ECCN EAR99 and HTSUS 8541.10.0080, with Moisture Sensitivity Level 1 (Unlimited), ensuring regulatory and handling compatibility.

Q4: Are substitute parts required to match all electrical performance parameters exactly?
A4: Substitute parts must meet all listed electrical and mechanical parameters or surpass minimum requirements as specified.

Q5: Does the product status of “Obsolete” impact availability for system maintenance?
A5: Yes, Obsolete status signifies that the original part is no longer in production, requiring substitute selection for continued sourcing.

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