RFN5B3STL Equivalent & Substitute Parts Reference

Part Overview

RFN5B3STL is a surface-mount fast recovery diode designed for general-purpose rectification applications within the diodes, rectifiers category. It offers a reverse DC voltage rating of 350 V, an average rectified current of 5 A, and a fast reverse recovery time of 30 ns. The device is provided in a TO-252-3 (DPAK) surface mount package and is RoHS3 compliant. As its product status is marked "Obsolete," engineers need to select equivalent or substitute parts to ensure continued availability and compatibility in existing designs.

Substiute Parts

RFN5B3STL

Rohm SemiconductorIn Stock: 799RFN5B3STL Datasheet

Current PartRFQ

RFN5BM3STL

Rohm SemiconductorIn Stock: 7915RFN5BM3STL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute and equivalent parts for RFN5B3STL are selected strictly based on the following allowed parameters:

• Voltage - DC Reverse (Vr) (Max)
• Current - Average Rectified (Io)
• Voltage - Forward (Vf) (Max) @ If
• Reverse Recovery Time (trr)
• Current - Reverse Leakage @ Vr
• Speed classification
• Mounting type and package
• Operating temperature - junction
• RoHS compliance
• Moisture Sensitivity Level (MSL)
• Product status

Parts listed as substitutes confirm matching values for all parameters above, equipped for direct replacement without modification of electrical or mechanical interface characteristics.

Parameter Comparison

Engineering Selection Recommendations

Selection of substitute diode parts for RFN5B3STL is determined by the product status being "Obsolete," while substitute parts such as RFN5BM3STL are marked "Active," ensuring ongoing availability. Both parts meet ROHS3 compliance and have an unlimited moisture sensitivity level (MSL 1), supporting direct replacement without compliance or reliability concerns. Substitute parts also maintain identical key parameters and package, facilitating straightforward selection based on provided certifications and product status.

Frequently Asked Questions (FAQ)

Q1: What are the minimum criteria for substituting RFN5B3STL in a design?
A1: Substitute selection requires identical specifications for reverse voltage, rectified current, forward voltage drop at rated current, reverse recovery time, reverse leakage current, speed classification, mounting type, package, operating temperature, RoHS status, and moisture sensitivity level.

Q2: Are there any differences in mounting or package compatibility between RFN5B3STL and its substitutes?
A2: Both RFN5B3STL and its substitute RFN5BM3STL use a surface mount format with the TO-252-3, DPAK (2 Leads + Tab), SC-63 package, ensuring mechanical compatibility.

Q3: How does RoHS compliance affect substitution eligibility?
A3: Both RFN5B3STL and the substitute part are ROHS3 compliant. Substitution is eligible for designs requiring RoHS conformity.

Q4: Is product status a factor in selecting diode substitutes?
A4: Yes, the main part is obsolete, and substitutes such as RFN5BM3STL are listed as active, ensuring supply continuity for production and support requirements.

Q5: Can substitute parts be used without modification to the PCB or assembly process?
A5: Provided that mounting type and package match, direct substitution can be implemented without modification to PCB layout or assembly. All specified parameters confirm full compatibility.