MR752 Equivalent & Substitute Parts

Part Overview

The MR752 is a general-purpose rectifier diode manufactured by onsemi, rated for 200 V DC reverse voltage and 6 A average rectified current. The device features a Microde Button package with through-hole mounting and operates across a junction temperature range of -65°C to 175°C. The MR752 is classified as obsolete, necessitating identification of equivalent substitute components for ongoing applications and new designs. Substitute parts must maintain electrical performance within the specified voltage and current parameters while accommodating packaging and compliance requirements.

Substiute Parts

MR752

onsemiIn Stock: 1298MR752 Datasheet

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6A2-TP

Micro Commercial CoIn Stock: 31826A2-TP Datasheet

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GI752-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 1864GI752-E3/54 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MR752 are qualified based on the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - DC Reverse (Vr) (Max): 200 V minimum
• Current - Average Rectified (Io): 6 A minimum
• Voltage - Forward (Vf) (Max) @ If: within acceptable operating range
• Speed classification: Standard Recovery >500ns, > 200mA (Io)
• Mounting Type: Through Hole

Mechanical Compatibility Criteria:

• Package / Case: Axial configuration
• Supplier Device Package: Compatible through-hole form factor

Compliance Considerations:

• RoHS Status: Substitutes may be RoHS3 compliant, addressing regulatory requirements
• Product Status: Active or Not For New Designs status preferred over obsolete classification

The following parts meet these substitution criteria: 6A2-TP (Micro Commercial Co) and GI752-E3/54 (Vishay General Semiconductor - Diodes Division).

Parameter Comparison

Engineering Selection Recommendations

GI752-E3/54 (Vishay General Semiconductor - Diodes Division) is the primary substitute for the MR752. This part maintains identical electrical specifications for voltage and forward voltage drop, demonstrates superior reverse leakage characteristics (5 µA versus 25 µA), and carries Active product status with ROHS3 compliance. The P600 package provides mechanical compatibility with through-hole mounting requirements. Operating temperature range of -50°C to 150°C covers the majority of standard industrial applications, with the exception of extended low-temperature operation below -50°C.

6A2-TP (Micro Commercial Co) serves as a secondary substitute when GI752-E3/54 availability is constrained. This part meets all electrical requirements with forward voltage of 950 mV at 6 A and reverse leakage of 10 µA. The R-6 package maintains through-hole compatibility. Product status is classified as Not For New Designs, and ROHS3 compliance is achieved. Operating temperature range of -55°C to 125°C is narrower than the MR752 original specification.

Both substitute parts address the obsolescence of the MR752 while providing improved reverse leakage performance and regulatory compliance through ROHS3 certification.

Frequently Asked Questions (FAQ)

Q: Can the GI752-E3/54 directly replace the MR752 in existing applications?

A: Yes. The GI752-E3/54 maintains the same 200 V reverse voltage rating, 6 A current rating, and 900 mV forward voltage drop at 6 A. Both devices employ standard recovery characteristics and through-hole axial mounting. Physical package differences (P600 versus Microde Button) require PCB layout verification, but electrical performance is equivalent.

Q: What is the difference between the 6A2-TP and GI752-E3/54 substitutes?

A: Both parts meet the MR752 electrical specifications. The GI752-E3/54 offers lower reverse leakage (5 µA versus 10 µA) and Active product status, making it preferable for new designs. The 6A2-TP provides an alternative when GI752-E3/54 is unavailable, with the trade-off of slightly higher forward voltage (950 mV versus 900 mV) and Not For New Designs status.

Q: Are there package compatibility concerns when substituting the MR752?

A: Yes. The MR752 uses a Microde Button package, while GI752-E3/54 uses P600 and 6A2-TP uses R-6. All three are through-hole axial devices, but physical dimensions differ. PCB footprint and lead spacing must be verified before implementation. Mechanical fit in existing sockets or PCB holes requires confirmation.

Q: Does the operating temperature range affect substitution suitability?

A: The MR752 operates from -65°C to 175°C. The GI752-E3/54 operates from -50°C to 150°C, and the 6A2-TP from -55°C to 125°C. For applications requiring operation below -50°C or above 150°C, the substitute parts do not meet the original temperature specification. Application temperature requirements must be evaluated against substitute capabilities.

Q: What is the significance of RoHS compliance in selecting a substitute?

A: The MR752 is RoHS non-compliant, while both GI752-E3/54 and 6A2-TP are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the compliant substitutes provide regulatory alignment. For legacy systems without RoHS mandates, compliance status does not affect electrical functionality.

Q: How do reverse leakage differences impact circuit performance?

A: The MR752 exhibits 25 µA reverse leakage at 200 V, while GI752-E3/54 exhibits 5 µA and 6A2-TP exhibits 10 µA. Lower reverse leakage reduces standby current and heat dissipation in high-impedance circuits. For most rectification applications, these differences are negligible. High-impedance or precision analog circuits may benefit from the lower leakage of the GI752-E3/54.