FST7340M Equivalent & Substitute Parts Reference

Part Overview

The GeneSiC Semiconductor FST7340M is a Schottky diode module categorized as “Diodes, Rectifiers.” It features a common cathode configuration, 40V maximum reverse voltage, and 35A average rectified current per diode, mounted using a D61-3M chassis case. The FST7340M is classified as “Obsolete,” leading to a requirement for functionally similar or substitute components for ongoing designs and maintenance. It is necessary to identify alternative parts that match or exceed the original electrical and mechanical specifications to ensure design continuity, system reliability, and supply assurance.

Substiute Parts

FST7340M

GeneSiC SemiconductorIn Stock: 739FST7340M Datasheet

Current PartRFQ

80CNQ040

SMC Diode SolutionsIn Stock: 83680CNQ040 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is determined only by explicit equivalence in the following parameters: diode configuration (1 Pair Common Cathode), Schottky technology, maximum reverse voltage (Vr), average rectified current (Io), forward voltage (Vf), recovery speed, reverse leakage current, operating junction temperature range, mounting type (chassis mount), and package/case compatibility as listed. Substitute parts are grouped when these attributes are matched or exceeded, based strictly on provided part and category specifications.

Key Parameters for Substitution:

• 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

Parameter Comparison

Engineering Selection Recommendations

The FST7340M is marked as obsolete. The substitute part 80CNQ040 is current and active in the market. Both parts have an MSL rating of 1 (unlimited), are classified under ECCN EAR99 and HTSUS 8541.10.0080. Selection within existing RoHS and compliance frameworks should be based solely on product status and matching ECCN/HTSUS parameters as described.

Frequently Asked Questions (FAQ)

Q1: What key parameters must be matched when selecting equivalent diodes or rectifiers?
A1: Diode configuration, technology, maximum reverse voltage, average rectified current, forward voltage drop at rated current, recovery speed, reverse leakage current, operating junction temperature, mounting type, and package or case must be matched.

Q2: Are package or case differences between FST7340M (D61-3M) and 80CNQ040 (PRM2) covered by this substitution criteria?
A2: Yes, both parts are chassis mount types within the diode, rectifier module category as specified in the provided parameters.

Q3: Does selecting an active product over an obsolete product have technical compliance implications?
A3: Product status (active vs. obsolete) affects sourcing and ongoing support, but compliance remains governed by explicit parameters such as RoHS status, MSL rating, ECCN, and HTSUS.

Q4: How should voltage and current ratings be considered in selecting substitute diodes within this category?
A4: The substitute’s voltage and current ratings must match or exceed those of the primary part, as explicitly listed in key parameter tables.

Q5: Is moisture sensitivity important when selecting between FST7340M and 80CNQ040?
A5: Both diodes are rated at MSL 1, indicating unlimited moisture sensitivity level, and are equivalent from this perspective according to provided parameters.