MUR550APFRL Equivalent & Substitute Parts

Part Overview

The MUR550APFRL is a general-purpose rectifier diode manufactured by onsemi, rated for 520 V DC reverse voltage and 5 A average rectified current. This component features fast recovery characteristics with a reverse recovery time of 95 ns, making it suitable for switching applications within the SWITCHMODE™ series. The MUR550APFRL is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The substitute part maintains identical electrical performance while offering improved product status and compliance certifications.

Substiute Parts

MUR550APFRL

onsemiIn Stock: 830MUR550APFRL Datasheet

Current PartRFQ

MUR550APFRLG

onsemiIn Stock: 2606MUR550APFRLG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MUR550APFRL with the MUR550APFRLG is based on parametric equivalence across all critical electrical and mechanical specifications. Both parts share identical ratings for reverse voltage (520 V), average rectified current (5 A), forward voltage drop (1.15 V @ 5 A), reverse recovery time (95 ns), and reverse leakage current (5 µA @ 520 V). Both components utilize the same through-hole axial package configuration (DO-201AA, DO-27) and operate across the identical temperature range (-65°C to 175°C). The substitution is valid because the MUR550APFRLG maintains all functional and mechanical compatibility requirements while offering active product status and improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The MUR550APFRLG is the direct parametric equivalent for the obsolete MUR550APFRL. Selection of the MUR550APFRLG is appropriate for all applications requiring the electrical and mechanical specifications of the MUR550APFRL. The substitute part offers the advantage of active product status, ensuring long-term availability and supply chain continuity. The MUR550APFRLG achieves ROHS3 compliance, whereas the original MUR550APFRL is non-compliant. Both parts maintain REACH Unaffected status and EAR99 export classification. The packaging difference—tape and reel (TR) for the MUR550APFRLG versus bulk packaging for the MUR550APFRL—reflects standard industry practice for active products and does not affect component functionality or performance in circuit applications.

Frequently Asked Questions (FAQ)

Q: Are the MUR550APFRL and MUR550APFRLG electrically identical?

A: Yes. Both parts share identical electrical specifications including 520 V reverse voltage rating, 5 A average rectified current, 1.15 V forward voltage drop at 5 A, 95 ns reverse recovery time, and 5 µA reverse leakage current at rated voltage.

Q: What is the primary reason for substituting the MUR550APFRL?

A: The MUR550APFRL is classified as obsolete. The MUR550APFRLG provides an active equivalent with identical performance characteristics and improved compliance status.

Q: Are the packages compatible?

A: Both parts use the same through-hole axial package configuration (DO-201AA, DO-27). The MUR550APFRLG is supplied in tape and reel format, which is standard for active products. The physical component dimensions and pin configuration remain identical, ensuring direct board-level compatibility.

Q: Does the MUR550APFRLG meet RoHS requirements?

A: Yes. The MUR550APFRLG is ROHS3 compliant, whereas the MUR550APFRL is non-compliant. This compliance improvement may be required for applications subject to RoHS directives.

Q: What is the operating temperature range for both parts?

A: Both the MUR550APFRL and MUR550APFRLG operate across a junction temperature range of -65°C to 175°C.

Q: Are there any differences in reverse recovery characteristics?

A: No. Both parts maintain identical reverse recovery time of 95 ns and are classified as fast recovery diodes with recovery time ≤ 500 ns for currents > 200 mA.