Request Quote
(Ships tomorrow)
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
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.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts

