MR752RLG General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The MR752RLG is a general purpose rectifier diode manufactured by onsemi, rated for 200 V DC reverse voltage and 6 A average rectified current. This component features a Through Hole Microde Button package configuration and operates across a junction temperature range of -65°C to 175°C.

The MR752RLG is classified as Obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this rectifier diode specification.

Substiute Parts

MR752RLG

onsemiIn Stock: 1580MR752RLG 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 MR752RLG are identified based on strict electrical and mechanical parameter matching within the general purpose rectifier diode category. The substitution criteria are:

Primary Electrical Parameters:

• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io): 6 A
• Technology: Standard

Secondary Electrical Parameters:

• Voltage - Forward (Vf) (Max) @ If: 900 mV nominal at 6 A
• Speed: Standard Recovery >500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: ≤25 µA @ 200 V

Mechanical Parameters:

• Mounting Type: Through Hole
• Package / Case: Axial configuration

The identified substitute parts meet these core electrical specifications and maintain Through Hole axial mounting compatibility. Variations in package form factor (Microde Button, R-6, P600) are acceptable within the Through Hole axial category, as they represent different supplier packaging standards for equivalent electrical performance.

Parameter Comparison

Engineering Selection Recommendations

GI752-E3/54 (Vishay General Semiconductor - Diodes Division) is the primary recommended substitute for the MR752RLG. This part maintains identical electrical specifications for reverse voltage (200 V) and average rectified current (6 A), with matching forward voltage (900 mV @ 6 A) and recovery speed characteristics. The GI752-E3/54 carries Active product status and ROHS3 compliance, supporting long-term design continuity and regulatory requirements. The P600 package represents a standard Through Hole axial form factor compatible with MR752RLG footprints. Reverse leakage current is superior (5 µA vs. 25 µA), and the part is currently in production inventory (1790 Pcs).

6A2-TP (Micro Commercial Co) serves as a secondary substitute option. This part meets all primary electrical parameters (200 V, 6 A, Standard technology) and maintains Through Hole axial mounting. The R-6 package is a recognized Through Hole axial standard. Forward voltage is slightly elevated (950 mV vs. 900 mV @ 6 A), and reverse leakage is lower (10 µA). The 6A2-TP carries Not For New Designs status, indicating limited future availability support. Operating temperature range (-55°C to 125°C) is narrower than the MR752RLG specification.

For applications requiring the full operating temperature range of the original MR752RLG (-65°C to 175°C), neither substitute part fully extends to these extremes. GI752-E3/54 reaches -50°C to 150°C, and 6A2-TP reaches -55°C to 125°C. Design validation is required if operation at the MR752RLG temperature extremes is mandatory.

Frequently Asked Questions (FAQ)

Q: Can the GI752-E3/54 directly replace the MR752RLG in existing designs?

A: The GI752-E3/54 meets all primary electrical specifications (200 V reverse voltage, 6 A average rectified current, 900 mV forward voltage @ 6 A, Standard recovery speed). Both parts use Through Hole axial mounting. Package form factors differ (P600 vs. Microde Button), requiring physical footprint verification. If the original design accommodates standard Through Hole axial packages, substitution is electrically valid.

Q: What is the difference between the Microde Button, R-6, and P600 packages?

A: These are three different supplier packaging standards for Through Hole axial rectifier diodes. Microde Button, R-6, and P600 represent distinct physical form factors and lead configurations used by different manufacturers. All three are Through Hole axial packages suitable for PCB mounting. Physical dimensions and lead spacing differ; PCB layout compatibility must be verified before substitution.

Q: Why does the GI752-E3/54 have lower reverse leakage current (5 µA) than the MR752RLG (25 µA)?

A: Reverse leakage current variation within the same electrical rating class reflects manufacturing process differences and device age. The MR752RLG is Obsolete; the GI752-E3/54 is Active production. Lower reverse leakage in the GI752-E3/54 represents improved manufacturing control in current production. Both values are within acceptable limits for general purpose rectifier applications.

Q: Is the 6A2-TP suitable for applications requiring the full -65°C to 175°C temperature range?

A: No. The 6A2-TP operating temperature range is -55°C to 125°C, which does not extend to the MR752RLG extremes of -65°C to 175°C. If the application requires operation at temperatures below -55°C or above 125°C, the 6A2-TP is not suitable. The GI752-E3/54 (-50°C to 150°C) also does not fully cover the original specification range.

Q: What compliance certifications apply to these substitute parts?

A: The GI752-E3/54 carries ROHS3 compliance and REACH Unaffected status. The 6A2-TP carries ROHS3 compliance and REACH Unaffected status. The MR752RLG is REACH Unaffected. All three parts are classified under ECCN EAR99 and HTSUS 8541.10.0080. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts.

Q: Can the 6A2-TP be used as a substitute if forward voltage tolerance is critical?

A: The 6A2-TP forward voltage is specified as 950 mV @ 6 A, compared to 900 mV @ 6 A for the MR752RLG. This represents a 50 mV difference. If circuit design requires forward voltage within ±50 mV of 900 mV, the 6A2-TP may exceed acceptable tolerance. The GI752-E3/54 matches the 900 mV specification exactly.