FS2B-TP Equivalent & Substitute Parts

Part Overview

The FS2B-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 100V DC reverse voltage and 2A average rectified current in a surface mount DO-214AC (HSMA) package. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. The fast recovery characteristic (≤500ns) and compact surface mount packaging make this diode suitable for standard rectification applications in power supply and signal conditioning circuits.

Substiute Parts

FS2B-TP

Micro Commercial CoIn Stock: 1141FS2B-TP Datasheet

Current PartRFQ

RS1B-M3/5AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 835RS1B-M3/5AT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete FS2B-TP is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - DC Reverse (Vr) Maximum: 100V
• Package / Case: DO-214AC (SMA) surface mount form factor
• Speed Classification: Fast Recovery ≤500ns
• Reverse Recovery Time (trr): 150ns
• Mounting Type: Surface Mount
• RoHS Compliance: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Current Rating Consideration: The FS2B-TP is rated for 2A average rectified current. Substitute parts must meet or exceed this current specification to ensure functional equivalence in the target application circuit.

The RS1B-M3/5AT from Vishay General Semiconductor - Diodes Division meets the voltage, package, speed, and compliance requirements. However, this substitute is rated for 1A average rectified current, which is below the 2A specification of the main part. This represents a current derating and requires circuit-level evaluation for applicability.

Parameter Comparison

Engineering Selection Recommendations

Substitute Applicability:

The RS1B-M3/5AT is electrically and mechanically compatible with the FS2B-TP for applications where the 1A current rating is sufficient. Both components share identical voltage ratings (100V), reverse recovery time (150ns), reverse leakage characteristics (5µA @ 100V), and RoHS3 compliance status.

Current Rating Consideration:

The RS1B-M3/5AT is rated for 1A average rectified current compared to the FS2B-TP's 2A rating. Selection of this substitute requires verification that the application circuit operates within the 1A maximum current specification. Circuits designed for 2A operation will require redesign or alternative component selection.

Packaging Compatibility:

Both components use the DO-214AC surface mount package. The FS2B-TP specifies HSMA variant while the RS1B-M3/5AT specifies SMA variant. Both variants are mechanically and electrically compatible in standard PCB footprints designed for DO-214AC packages.

Product Status:

The RS1B-M3/5AT maintains active product status with established supply chain availability (783 pieces in stock), whereas the FS2B-TP is obsolete. The substitute part is suitable for new designs and ongoing production requirements.

Compliance:

Both components are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage processes.

Frequently Asked Questions (FAQ)

Q: Can the RS1B-M3/5AT directly replace the FS2B-TP in all applications?

A: Direct replacement is possible only in applications where the circuit operates at or below 1A average rectified current. The FS2B-TP is rated for 2A, while the RS1B-M3/5AT is rated for 1A. Applications requiring the full 2A rating require alternative component selection or circuit redesign.

Q: Are the DO-214AC (HSMA) and DO-214AC (SMA) packages interchangeable?

A: Yes. Both HSMA and SMA variants of the DO-214AC package are mechanically and electrically compatible. Standard PCB footprints designed for DO-214AC accommodate both variants without modification.

Q: What is the significance of the 150ns reverse recovery time specification?

A: The 150ns reverse recovery time indicates fast recovery diode performance, suitable for switching applications and power supply circuits. Both the FS2B-TP and RS1B-M3/5AT share this specification, ensuring equivalent switching characteristics.

Q: Does the RS1B-M3/5AT meet RoHS compliance requirements?

A: Yes. The RS1B-M3/5AT is ROHS3 compliant, matching the compliance status of the FS2B-TP. Both components are suitable for applications with RoHS regulatory requirements.

Q: What is the difference between the operating temperature ranges?

A: The FS2B-TP operates from -50°C to 150°C junction temperature, while the RS1B-M3/5AT operates from -55°C to 150°C. The RS1B-M3/5AT provides a 5°C lower minimum operating temperature, offering a wider operating range for low-temperature applications.

Q: Is the RS1B-M3/5AT available in tape and reel packaging?

A: Yes. The RS1B-M3/5AT is supplied in Tape & Reel (TR) packaging format, suitable for automated assembly processes. The FS2B-TP packaging format is not specified in the provided data.

Q: What reverse leakage current should be expected at 100V?

A: Both the FS2B-TP and RS1B-M3/5AT specify 5µA maximum reverse leakage current at 100V, ensuring equivalent leakage performance in circuit applications.