FST8345M Equivalent & Substitute Parts Reference

Part Overview

The FST8345M by GeneSiC Semiconductor is a diode array designed for high current rectification applications, featuring a common cathode Schottky configuration with a maximum DC reverse voltage of 45 V and an average rectified current of 80A per diode. It is packaged in a D61-3M chassis-mount case and specified for operation from -55°C to 150°C junction temperature. This product is classified as obsolete. Therefore, identifying precise substitute models is necessary to ensure continued availability, optimal form fit, and electrical/mechanical compatibility for ongoing applications and designs requiring these specifications.

Substiute Parts

FST8345M
GeneSiC SemiconductorIn Stock: 1142FST8345M Datasheet
FST8345M
Current Part
80CNQ045S2
SMC Diode SolutionsIn Stock: 101780CNQ045S2 Datasheet
80CNQ045S2
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Key Parameters

Parameter FST8345M Value
Manufacturer GeneSiC Semiconductor
Diode Configuration 1 Pair Common Cathode
Technology Schottky
Voltage - DC Reverse (Vr) (Max) 45 V
Current - Average Rectified (Io) (per Diode) 80A (DC)
Voltage - Forward (Vf) (Max) @ If 650 mV @ 80 A
Speed Fast Recovery =< 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr 1.5 mA @ 20 V
Operating Temperature - Junction -55°C ~ 150°C
Mounting Type Chassis Mount
Package / Case D61-3M
Supplier Device Package D61-3M
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Product Status Obsolete

Substitute Part Grouping Explanation

Substitute parts for the FST8345M are selected strictly based on essential electrical and mechanical parameters pertinent to diodes, rectifiers in the Schottky category. These key parameters include: diode configuration (1 pair common cathode), Schottky technology, maximum DC reverse voltage, average rectified forward current, maximum forward voltage at the rated current, reverse leakage current, switching speed, operating temperature range, mounting type, and package compatibility. Only parts matching these explicit criteria are listed as substitutes for the FST8345M.

Parameter Comparison

Parameter FST8345M 80CNQ045S2
Manufacturer GeneSiC Semiconductor SMC Diode Solutions
Category Diodes, Rectifiers Diodes, Rectifiers
Diode Configuration 1 Pair Common Cathode 1 Pair Common Cathode
Technology Schottky Schottky
Voltage - DC Reverse (Vr) (Max) 45 V 45 V
Current - Average Rectified (Io) (per Diode) 80A (DC) 80A
Voltage - Forward (Vf) (Max) @ If 650 mV @ 80 A 660 mV @ 80 A
Speed Fast Recovery =< 500ns, > 200mA (Io) Fast Recovery =< 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr 1.5 mA @ 20 V 5 mA @ 45 V
Operating Temperature - Junction -55°C ~ 150°C -55°C ~ 150°C
Mounting Type Chassis Mount Chassis Mount
Package / Case D61-3M PRM2
Supplier Device Package D61-3M PRM2
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
Product Status Obsolete Active

Engineering Selection Recommendations

For the FST8345M, which is designated as obsolete, alternative selection is determined by active product status and compliance attributes. The 80CNQ045S2 from SMC Diode Solutions is identified as an active model and is noted as ROHS3 compliant and REACH affected. All substitute parts listed are classified as having Moisture Sensitivity Level 1 (Unlimited).

Frequently Asked Questions (FAQ)

Q1: What criteria are used for selecting substitute diodes for FST8345M?
A1: Only identical or matching parameters are considered: diode configuration, technology type, maximum DC reverse voltage, average rectified current, forward voltage at operating current, reverse leakage, speed, operating temperature range, mounting type, and package/case.

Q2: Are the mounting types and packages compatible between FST8345M and its substitutes?
A2: Both parts use chassis mount configurations, but package/case identifiers differ: D61-3M (FST8345M) and PRM2 (80CNQ045S2). Mechanical and footprint differences should be referenced based on the explicit package codes provided.

Q3: What product status information is relevant for the selection?
A3: FST8345M is obsolete, requiring substitution with active product status models such as 80CNQ045S2.

Q4: How do compliance and environmental certifications affect selection?
A4: Substitute parts are compared for status such as ROHS3 compliance and REACH affected status, summarized as provided in the original parameters.

Q5: Are electrical parameters for performance directly interchangeable?
A5: Interchange selection in this reference is limited to provided electrical parameters, which have been compared directly in the table. Alternative options are included only where these parameters are stated as matching.

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