MR756-BP Equivalent & Substitute Parts

Part Overview

The MR756-BP is a general-purpose rectifier diode rated for 600 V DC reverse voltage and 6 A average rectified current, manufactured by Micro Commercial Co. This component features a leaded button package for through-hole mounting applications. The MR756-BP is classified as obsolete, necessitating identification of active equivalent parts for new procurement and design continuity. Substitute parts must maintain electrical performance within the specified voltage and current ratings while accommodating different package configurations.

Substiute Parts

MR756-BP

Micro Commercial CoIn Stock: 1024MR756-BP Datasheet

Current PartRFQ

60S6-TP

Micro Commercial CoIn Stock: 566860S6-TP Datasheet

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6A6-TP

Micro Commercial CoIn Stock: 14296A6-TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MR756-BP are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Voltage - DC Reverse (Vr) (Max): Must equal 600 V
• Current - Average Rectified (Io): Must equal 6 A
• Mounting Type: Must be Through Hole
• Technology: Must be Standard recovery rectifier
• RoHS Status: Must maintain ROHS3 Compliance

The identified substitute parts—60S6-TP and 6A6-TP—satisfy all core electrical requirements. Both parts are manufactured by Micro Commercial Co and maintain the 600 V / 6 A rating. Substitution is feasible despite package differences (DO-201AD and R-6 versus Button, Axial) because all configurations are through-hole mounted axial diodes suitable for PCB and breadboard applications. The 60S6-TP is classified as Active product status, making it the preferred substitute for new designs. The 6A6-TP is classified as Not For New Designs but remains electrically compatible.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 60S6-TP

The 60S6-TP is the recommended substitute for the obsolete MR756-BP. This part maintains identical electrical specifications (600 V, 6 A) and is classified as Active product status, ensuring long-term availability and supply chain continuity. The 60S6-TP is packaged in DO-201AD configuration, a standard through-hole axial format compatible with existing PCB layouts designed for similar diode packages. Both parts are ROHS3 compliant and carry unlimited moisture sensitivity rating (MSL 1). The 60S6-TP exhibits lower reverse leakage current (5 µA versus 25 µA), which may provide improved performance in high-impedance applications.

Secondary Substitute: 6A6-TP

The 6A6-TP is electrically compatible with the MR756-BP and maintains the 600 V / 6 A rating. However, this part is classified as Not For New Designs, limiting its suitability for new product development. The 6A6-TP is packaged in R-6 configuration and exhibits a narrower operating temperature range (-55°C to 125°C) compared to the MR756-BP (-65°C to 175°C). This part is suitable only for legacy system maintenance or replacement applications where existing inventory is available.

Frequently Asked Questions (FAQ)

Q: Can the 60S6-TP directly replace the MR756-BP in existing circuits?

A: Yes. Both parts are rated for 600 V DC reverse voltage and 6 A average rectified current with identical recovery speed characteristics. The primary difference is package configuration: the MR756-BP uses a Button, Axial package while the 60S6-TP uses DO-201AD, Axial. Both are through-hole mounted and physically compatible with standard PCB footprints designed for axial diodes of this current rating.

Q: What are the implications of the different forward voltage specifications?

A: The MR756-BP specifies 900 mV forward voltage at 6 A, while the 60S6-TP specifies 1 V at the same current. This 100 mV difference is within normal manufacturing tolerance for general-purpose rectifier diodes and does not affect circuit functionality in standard rectification applications. Power dissipation will increase marginally with the 60S6-TP due to higher forward voltage.

Q: Why does the 60S6-TP have lower reverse leakage current than the MR756-BP?

A: Reverse leakage current variation (5 µA versus 25 µA at 600 V) reflects manufacturing process differences between the obsolete MR756-BP and the active 60S6-TP. The 60S6-TP's lower leakage is an improvement and does not create compatibility issues. Both values are acceptable for standard rectification circuits.

Q: Is the 6A6-TP suitable for new product designs?

A: No. The 6A6-TP is classified as Not For New Designs. This designation indicates that Micro Commercial Co does not recommend this part for new applications. The 60S6-TP (Active status) is the appropriate choice for new designs requiring a 600 V / 6 A general-purpose rectifier diode.

Q: What is the significance of the operating temperature range difference?

A: The MR756-BP operates from -65°C to 175°C, while the 60S6-TP operates from -55°C to 150°C. The 60S6-TP has a narrower range, particularly at the lower temperature extreme. For applications requiring operation below -55°C or above 150°C, the MR756-BP specifications must be verified against actual circuit requirements. Most industrial and consumer applications operate within the 60S6-TP range.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the 60S6-TP and 6A6-TP are ROHS3 compliant, matching the MR756-BP compliance status. All three parts carry unlimited moisture sensitivity rating (MSL 1), indicating no special storage or handling requirements.