MUR105GP-TP Equivalent & Substitute Parts

Part Overview

The MUR105GP-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. This component is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identification of equivalent and substitute parts is necessary for legacy system maintenance, repair operations, and applications where continued supply of the original part number is unavailable.

Substiute Parts

MUR105GP-TP

Micro Commercial CoIn Stock: 722MUR105GP-TP Datasheet

Current PartRFQ

RGP10A-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 1094RGP10A-E3/54 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MUR105GP-TP is determined by strict equivalence across the following electrical and mechanical parameters:

Mandatory Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 50 V
• Current - Average Rectified (Io): 1 A
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Mounting Type: Through Hole
• Package / Case: DO-204AL, DO-41, Axial

Acceptable Variation Ranges:

• Voltage - Forward (Vf) (Max) @ If: Substitute values must not exceed the application's forward voltage tolerance
• Reverse Recovery Time (trr): Substitute values may exceed the original specification without functional degradation in standard rectification applications
• Operating Temperature - Junction: Substitute range must encompass or exceed the original range
• Current - Reverse Leakage @ Vr: Substitute values must not exceed the original specification

The RGP10A-E3/54 meets all mandatory matching criteria and is therefore classified as a direct substitute for the MUR105GP-TP.

Parameter Comparison

Engineering Selection Recommendations

The RGP10A-E3/54 is a qualified substitute for the MUR105GP-TP based on the following engineering criteria:

Electrical Equivalence: Both devices share identical voltage and current ratings (50 V, 1 A), reverse leakage current (5 µA @ 50 V), and capacitance characteristics (15 pF @ 4V, 1MHz). Both are classified as fast recovery rectifiers with switching speeds ≤ 500 ns.

Mechanical Compatibility: Both components utilize identical through-hole mounting and DO-204AL/DO-41 axial package configurations, ensuring direct physical interchangeability in existing PCB layouts.

Compliance Status: The RGP10A-E3/54 maintains ROHS3 compliance and REACH unaffected status, matching the regulatory posture of the original part.

Product Status Advantage: The RGP10A-E3/54 carries "Active" product status, ensuring continued availability and manufacturer support, whereas the MUR105GP-TP is designated "Not For New Designs."

Temperature Performance: The RGP10A-E3/54 extends the operating temperature range to -65 to 175 °C, providing superior thermal margin compared to the original -65 to 150 °C specification.

Forward Voltage Consideration: The RGP10A-E3/54 exhibits a higher forward voltage drop (1.3 V versus 970 mV at 1 A). Applications sensitive to forward voltage dissipation must evaluate this 330 mV differential against circuit power budget constraints.

Reverse Recovery Time: The RGP10A-E3/54 specifies 150 ns reverse recovery time compared to 45 ns for the original. This parameter increase does not degrade performance in standard rectification applications but may require evaluation in high-frequency switching circuits.

Frequently Asked Questions (FAQ)

Q: Can the RGP10A-E3/54 be used as a direct replacement for the MUR105GP-TP in existing designs?

A: Yes. Both devices share identical voltage ratings (50 V), current ratings (1 A), package configurations (DO-41/DO-204AL), and mounting types (through-hole). Physical and electrical interchangeability is confirmed.

Q: What is the significance of the higher forward voltage (1.3 V) in the RGP10A-E3/54 compared to the MUR105GP-TP (970 mV)?

A: The 330 mV difference represents increased power dissipation in the substitute device. For applications operating at or near maximum current (1 A), this translates to approximately 330 mW additional heat generation. Circuit designs with tight thermal budgets or high-frequency operation must account for this differential.

Q: Does the longer reverse recovery time (150 ns) of the RGP10A-E3/54 affect circuit performance?

A: In standard rectification applications (power supplies, bridge rectifiers), the 105 ns increase in reverse recovery time does not produce functional degradation. High-frequency switching circuits or precision timing applications should verify compatibility through circuit simulation or prototype testing.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the MUR105GP-TP and RGP10A-E3/54 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Why is the MUR105GP-TP marked "Not For New Designs"?

A: This designation indicates the part has been superseded in the manufacturer's product line. The RGP10A-E3/54, carrying "Active" status, represents the current equivalent offering with continued manufacturer support and supply assurance.

Q: Can these diodes be used interchangeably in high-temperature applications?

A: The RGP10A-E3/54 supports operation to 175 °C junction temperature, exceeding the MUR105GP-TP specification of 150 °C. For applications requiring sustained operation above 150 °C, the RGP10A-E3/54 provides superior thermal margin.

Q: What is the package designation DO-204AL, and how does it relate to DO-41?

A: DO-204AL is the formal JEDEC package designation for the axial-lead through-hole diode package commonly referred to as DO-41. Both designations describe the same physical package configuration used by both the MUR105GP-TP and RGP10A-E3/54.