FR202 Equivalent & Substitute Parts

Part Overview

The FR202 is a general-purpose rectifier diode rated for 100 V DC reverse voltage and 2 A average rectified current, housed in a DO-15 (DO-204AC) axial through-hole package. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design support and procurement continuity. Substitute parts must maintain electrical performance within the specified operating parameters while offering current availability and active product status.

Substiute Parts

FR202

SMC Diode SolutionsIn Stock: 25361FR202 Datasheet

Current PartRFQ

FR202G

Taiwan Semiconductor CorporationIn Stock: 865FR202G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FR202 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Voltage - DC Reverse (Vr) (Max): 100 V minimum
• Current - Average Rectified (Io): 2 A minimum
• Voltage - Forward (Vf) (Max) @ If: Within 1.2 - 1.3 V @ 2 A range
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Reverse Recovery Time (trr): 150 ns nominal

Mechanical Equivalence Requirements:

• Mounting Type: Through Hole
• Package / Case: DO-204AC, DO-15, Axial configuration

Compliance Considerations:

• REACH Status: REACH Unaffected
• ECCN: EAR99
• HTSUS: 8541.10.0080

Substitute parts must satisfy all critical parameters without degradation. Parts meeting these criteria are classified as direct functional equivalents suitable for circuit-level replacement.

Parameter Comparison

Engineering Selection Recommendations

FR202G (Taiwan Semiconductor Corporation) - Direct Substitute

The FR202G is a direct functional equivalent to the FR202. Both components share identical electrical specifications for voltage rating, current capacity, switching speed, and reverse recovery time. Package configurations are equivalent (DO-204AC and DO-15 are the same physical form factor). Both components maintain identical reverse leakage current and moisture sensitivity classification.

The FR202G offers the following advantages for design continuity:

• Active Product Status: FR202G is actively manufactured and stocked (799 units available), eliminating obsolescence risk associated with the FR202.
• Extended Operating Temperature Range: FR202G supports -55°C to 150°C junction temperature, compared to FR202's -65°C to 125°C. This extended upper temperature limit provides additional thermal margin in high-temperature applications.
• Regulatory Compliance: FR202G maintains identical REACH, ECCN, and HTSUS classifications, ensuring no supply chain or export compliance changes.
• Capacitance Characteristic: FR202G exhibits lower junction capacitance (10 pF versus 30 pF at 4V, 1MHz), which may provide improved high-frequency performance in switching applications.

Forward voltage at rated current is marginally higher (1.3 V versus 1.2 V @ 2 A), representing a 0.1 V increase within acceptable design tolerance for general-purpose rectification circuits.

Frequently Asked Questions (FAQ)

Q: Can FR202G be used as a direct replacement for FR202 in existing circuit designs?

A: Yes. The FR202G meets all critical electrical and mechanical parameters of the FR202. Both components are rated for 100 V reverse voltage, 2 A average rectified current, and feature identical fast recovery switching characteristics (150 ns reverse recovery time). Package configurations are equivalent (DO-15/DO-204AC axial through-hole). No circuit redesign is required.

Q: What is the significance of the forward voltage difference (1.2 V vs. 1.3 V)?

A: The 0.1 V difference in forward voltage drop at 2 A rated current is within normal manufacturing tolerance for general-purpose rectifier diodes. This difference has negligible impact on circuit performance in standard rectification applications. Power dissipation increase is approximately 0.2 W per diode at maximum rated current, which is typically absorbed within existing thermal design margins.

Q: Are the DO-15 and DO-204AC packages physically identical?

A: Yes. DO-15 and DO-204AC designate the same physical package: an axial through-hole component with leads suitable for PCB insertion. Both designations refer to the same mechanical form factor and pin spacing. Components are interchangeable at the board level.

Q: Does the lower capacitance of FR202G (10 pF vs. 30 pF) affect circuit performance?

A: Lower junction capacitance in the FR202G may provide improved performance in high-frequency switching applications by reducing capacitive coupling effects. In standard 50/60 Hz rectification circuits, this difference is not functionally significant. Applications operating above 1 MHz may benefit from the reduced capacitance characteristic.

Q: What is the impact of the extended operating temperature range of FR202G?

A: The FR202G supports junction temperatures up to 150°C, compared to 125°C for the FR202. This extended upper limit provides additional thermal margin in applications with elevated ambient temperatures or high power dissipation. The lower temperature limit of FR202G (-55°C) is less stringent than FR202 (-65°C), which is acceptable for most industrial and commercial applications.

Q: Are there any compliance or regulatory differences between FR202 and FR202G?

A: No. Both components share identical REACH, ECCN (EAR99), and HTSUS (8541.10.0080) classifications. Moisture sensitivity level is identical (MSL 1 - Unlimited). No changes to supply chain documentation, export licensing, or regulatory filings are required when substituting FR202G for FR202.

Q: What is the current availability status of these components?

A: FR202 is obsolete with 25,345 units in stock. FR202G is an active product with 799 units currently available. For new designs and long-term procurement, FR202G is the recommended selection to ensure sustained component availability.