FR506-AP Equivalent & Substitute Parts

Part Overview

The FR506-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 800 V DC reverse voltage and 5 A average rectified current in a DO-201AD axial through-hole package. This part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity. Active alternatives with identical or comparable electrical characteristics are available to maintain circuit functionality and performance specifications.

Substiute Parts

FR506-AP

Micro Commercial CoIn Stock: 1176FR506-AP Datasheet

Current PartRFQ

FR506GP-AP

Micro Commercial CoIn Stock: 1236FR506GP-AP Datasheet

DirectRFQ

EGP30K

Fairchild SemiconductorIn Stock: 5117EGP30K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FR506-AP are classified into two categories based on electrical parameter alignment and product status:

Direct Equivalent (Active Status): FR506GP-AP from Micro Commercial Co matches all electrical specifications of the FR506-AP, including 800 V reverse voltage, 5 A average rectified current, 1.35 V forward voltage at 5 A, 500 ns reverse recovery time, and identical package configuration. This part is active and available, providing a direct replacement path for the obsolete FR506-AP.

Similar Substitute (Reduced Current Rating): EGP30K from Fairchild Semiconductor shares the same 800 V reverse voltage rating and DO-201AD package but operates at a reduced 3 A average rectified current rating. This part is suitable for applications where the full 5 A current capacity is not required. The EGP30K exhibits faster reverse recovery time (75 ns versus 500 ns) and lower reverse leakage current (5 µA versus 10 µA), with an extended lower operating temperature limit of -65°C.

Substitution eligibility is determined by matching or exceeding the voltage rating, meeting or exceeding the current requirement, and maintaining compatible package and mounting specifications.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: FR506GP-AP is the primary substitute for FR506-AP. Both parts are manufactured by Micro Commercial Co with identical electrical specifications and package configuration. FR506GP-AP carries active product status with ROHS3 compliance and REACH unaffected designation, ensuring regulatory alignment and supply chain continuity. This part is recommended for applications requiring the full 5 A current capacity and matching thermal characteristics.

For Current-Limited Applications: EGP30K from Fairchild Semiconductor is suitable for circuits where the average rectified current requirement does not exceed 3 A. This part maintains the 800 V reverse voltage rating and DO-201AD package compatibility. The EGP30K offers improved reverse recovery performance (75 ns) and reduced reverse leakage current (5 µA), with extended lower temperature operation to -65°C. Selection of EGP30K is appropriate when circuit design permits reduced current capacity and when the faster recovery characteristics provide system-level benefits.

Compliance Considerations: Both FR506GP-AP and EGP30K are active products with established supply availability. FR506GP-AP explicitly carries ROHS3 compliance certification. Component selection should align with application regulatory requirements and supply chain qualification procedures.

Frequently Asked Questions (FAQ)

Q: Can FR506GP-AP be used as a direct replacement for FR506-AP?

A: Yes. FR506GP-AP is electrically and mechanically identical to FR506-AP across all specified parameters: 800 V reverse voltage, 5 A average rectified current, 1.35 V forward voltage at 5 A, 500 ns reverse recovery time, and DO-201AD axial through-hole package. FR506GP-AP is active and available, whereas FR506-AP is obsolete.

Q: What are the limitations of using EGP30K as a substitute?

A: EGP30K is rated for 3 A average rectified current, compared to the FR506-AP rating of 5 A. EGP30K is suitable only for applications where the circuit current requirement does not exceed 3 A. The forward voltage at rated current is higher (1.7 V @ 3 A versus 1.35 V @ 5 A), which affects power dissipation calculations. EGP30K is compatible with the same DO-201AD package and through-hole mounting.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. FR506-AP, FR506GP-AP, and EGP30K all use the DO-201AD axial through-hole package with identical physical dimensions and pin configuration. All three parts are directly interchangeable at the PCB level without layout modifications.

Q: What is the difference in reverse recovery time between the parts?

A: FR506-AP and FR506GP-AP both specify 500 ns reverse recovery time. EGP30K specifies 75 ns reverse recovery time, representing significantly faster switching behavior. Faster recovery time reduces switching losses and may improve circuit efficiency in high-frequency applications, but this characteristic is not required for direct functional replacement.

Q: Which part should be selected for new designs?

A: FR506GP-AP is recommended for new designs requiring 5 A capacity. It is an active product with ROHS3 compliance and identical specifications to the obsolete FR506-AP. EGP30K is appropriate for new designs where circuit current requirements are limited to 3 A or less and where the faster recovery characteristics provide system benefits.

Q: Are there any temperature range differences between the substitutes?

A: FR506-AP and FR506GP-AP both specify -55°C to 150°C junction operating temperature. EGP30K extends the lower temperature limit to -65°C, providing wider temperature range operation. The upper temperature limit remains 150°C across all three parts.