FR305-AP Equivalent & Substitute Parts

Part Overview

The FR305-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 600 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. This component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and production continuity. Substitute parts must maintain electrical performance across voltage, current, and thermal specifications while supporting the same mechanical package configuration.

Substiute Parts

FR305-AP

Micro Commercial CoIn Stock: 970FR305-AP Datasheet

Current PartRFQ

FR305GP-AP

Micro Commercial CoIn Stock: 964FR305GP-AP Datasheet

DirectRFQ

FR305G A0G

Taiwan Semiconductor CorporationIn Stock: 949FR305G A0G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FR305-AP are selected based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Electrical Parameters:

• Voltage - DC Reverse (Vr) (Max): 600 V minimum
• Current - Average Rectified (Io): 3 A minimum
• Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 3 A maximum
• Reverse Recovery Time (trr): 250 ns maximum
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Parameters:

• Package / Case: DO-201AD, Axial
• Mounting Type: Through Hole

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Operating Temperature - Junction: -55°C ~ 150°C

Substitute parts are classified into two categories: Direct Manufacturer Equivalents (same manufacturer, active product status) and Parametric Equivalents (alternative manufacturers, matching electrical specifications).

Parameter Comparison

Engineering Selection Recommendations

FR305GP-AP (Direct Manufacturer Equivalent)

The FR305GP-AP is the primary substitute for the obsolete FR305-AP. Both parts are manufactured by Micro Commercial Co and share identical electrical ratings across all critical parameters: 600 V reverse voltage, 3 A average rectified current, 1.3 V forward voltage at 3 A, and 250 ns reverse recovery time. The FR305GP-AP holds active product status, ensuring long-term availability and supply chain continuity. This part exhibits improved reverse leakage characteristics (5 µA versus 10 µA) and lower junction capacitance (50 pF versus 65 pF), representing performance enhancements over the original design. Both parts maintain ROHS3 compliance and identical thermal operating ranges (-55°C to 150°C). The FR305GP-AP is the recommended first choice for direct replacement in existing designs.

FR305G A0G (Parametric Equivalent)

The FR305G A0G, manufactured by Taiwan Semiconductor Corporation, provides a parametric equivalent alternative meeting all electrical and mechanical specifications of the FR305-AP. This part maintains the same 600 V / 3 A rating, 1.3 V forward voltage, and 250 ns reverse recovery time. The FR305G A0G demonstrates superior performance characteristics with 5 µA reverse leakage and notably lower junction capacitance (30 pF), offering potential advantages in high-frequency switching applications. Active product status and ROHS3 compliance support production deployment. Selection of this part requires confirmation of manufacturer qualification within the design and procurement framework.

Both substitute parts are electrically and mechanically compatible with the FR305-AP within the specified parameter ranges and support identical through-hole PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can FR305GP-AP and FR305G A0G be used interchangeably with FR305-AP?

A: Both substitute parts meet the electrical specifications of the FR305-AP: 600 V reverse voltage, 3 A average rectified current, 1.3 V forward voltage at 3 A, and 250 ns reverse recovery time. Both use the DO-201AD axial through-hole package. Interchangeability is supported within these parameter boundaries. Manufacturer qualification requirements should be evaluated according to design and procurement standards.

Q: What is the primary difference between FR305GP-AP and FR305G A0G?

A: Both parts meet identical electrical ratings. The FR305GP-AP is manufactured by Micro Commercial Co (same as the original FR305-AP), while FR305G A0G is manufactured by Taiwan Semiconductor Corporation. The FR305G A0G exhibits lower junction capacitance (30 pF versus 50 pF), which may provide advantages in specific circuit applications. Manufacturer selection depends on supply chain strategy and design qualification requirements.

Q: Why is the FR305-AP classified as obsolete?

A: The FR305-AP is listed as obsolete by the manufacturer. The FR305GP-AP represents the active production equivalent from Micro Commercial Co, ensuring continued availability and supply chain support for new designs and production runs.

Q: Are there package or mounting differences between these parts?

A: All three parts use the DO-201AD axial through-hole package and support identical through-hole PCB assembly processes. No package or mounting modifications are required for substitution.

Q: What compliance certifications apply to these substitute parts?

A: All three parts are ROHS3 compliant and maintain Moisture Sensitivity Level 1 (Unlimited). Operating temperature ranges are identical across all parts: -55°C to 150°C junction temperature.

Q: How do reverse leakage and capacitance differences affect circuit performance?

A: The FR305GP-AP and FR305G A0G exhibit lower reverse leakage (5 µA versus 10 µA at 600 V) and reduced junction capacitance compared to the FR305-AP. These improvements may reduce power dissipation and switching losses in specific applications. Circuit-level evaluation should be performed if these parameters are critical to design performance.