FS1D-TP Equivalent & Substitute Parts

Part Overview

The FS1D-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (HSMA) package. This component is classified as Obsolete, indicating it is no longer in active production. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode specification.

Substiute Parts

FS1D-TP

Micro Commercial CoIn Stock: 862FS1D-TP Datasheet

Current PartRFQ

FS1D-LTP

Micro Commercial CoIn Stock: 5477FS1D-LTP Datasheet

DirectRFQ

CSFA103-G

Comchip TechnologyIn Stock: 19985CSFA103-G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FS1D-TP is determined by strict equivalence across the following critical electrical and mechanical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io): 1 A
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 5 µA @ 200 V
• Mounting Type: Surface Mount
• Package / Case: DO-214AC, SMA
• RoHS Status: ROHS3 Compliant

Acceptable Variation Parameters:

• Reverse Recovery Time (trr): Substitute values equal to or less than 150 ns are acceptable
• Operating Temperature - Junction: Substitute range must encompass or exceed the original range
• Forward Voltage (Vf): Minor variations are acceptable provided they do not exceed application limits
• Capacitance @ Vr, F: Variations acceptable when not specified in original part

Two substitute parts meet these criteria: FS1D-LTP (Micro Commercial Co) and CSFA103-G (Comchip Technology). Both maintain electrical equivalence while differing in product status and specific performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

FS1D-LTP (Micro Commercial Co): This substitute maintains identical electrical specifications and temperature range to the FS1D-TP. Both components share the same manufacturer base product number (FS1D) and are ROHS3 compliant. The FS1D-LTP is classified as "Not For New Designs," indicating it remains available for legacy system support and maintenance applications. This part is suitable for direct replacement in existing designs where the FS1D-TP is currently specified.

CSFA103-G (Comchip Technology): This substitute meets all mandatory electrical parameters and is classified as Active, indicating ongoing production and long-term availability. The CSFA103-G demonstrates superior performance characteristics: reverse recovery time of 35 ns (significantly faster than the 150 ns specification) and lower forward voltage (950 mV versus 1.3 V at 1 A). Operating temperature range extends to -55°C, providing broader environmental coverage. REACH compliance status is documented as "REACH Unaffected." This part is suitable for new designs and represents the preferred long-term supply solution.

Both substitutes are electrically and mechanically compatible with the FS1D-TP within the specified application parameters.

Frequently Asked Questions (FAQ)

Q: Can FS1D-LTP be used as a direct replacement for FS1D-TP?

A: Yes. The FS1D-LTP maintains identical voltage rating (200 V), current rating (1 A), reverse recovery time (150 ns), reverse leakage current (5 µA @ 200 V), and operating temperature range (-50°C ~ 150°C). Both components use the DO-214AC (SMA) package and are ROHS3 compliant. The primary difference is packaging format (Tape & Reel for FS1D-LTP versus unspecified for FS1D-TP) and product status classification.

Q: What are the advantages of CSFA103-G over FS1D-TP?

A: The CSFA103-G offers three technical advantages: (1) Reverse recovery time of 35 ns, which is 4.3 times faster than the FS1D-TP specification of 150 ns, reducing switching losses in high-frequency applications; (2) Forward voltage of 950 mV at 1 A, which is 27% lower than the FS1D-LTP specification of 1.3 V, reducing conduction losses; (3) Extended operating temperature range to -55°C, providing 5°C additional low-temperature margin. The CSFA103-G is classified as Active, ensuring long-term availability.

Q: Are there package compatibility concerns between these substitutes?

A: All three parts (FS1D-TP, FS1D-LTP, and CSFA103-G) use the DO-214AC (SMA) surface mount package. Physical dimensions and PCB footprints are identical. No package-related design modifications are required for substitution.

Q: What is the significance of the product status classifications?

A: FS1D-TP is classified as Obsolete, indicating discontinued production. FS1D-LTP is classified as "Not For New Designs," indicating limited availability for legacy support. CSFA103-G is classified as Active, indicating current production and recommended for new designs. For applications requiring long-term supply assurance, CSFA103-G is the preferred selection.

Q: Do all substitutes meet RoHS compliance requirements?

A: Yes. FS1D-TP, FS1D-LTP, and CSFA103-G are all ROHS3 compliant. All three parts carry Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: What electrical parameters must remain constant for substitution?

A: The following parameters must remain constant: Voltage - DC Reverse (Vr) (Max) at 200 V, Current - Average Rectified (Io) at 1 A, Current - Reverse Leakage @ Vr at 5 µA @ 200 V, and Speed Classification as Fast Recovery ≤ 500ns, > 200mA (Io). Reverse recovery time may be equal to or less than the original specification. Forward voltage and operating temperature range may vary within application limits.