MA3D650 Equivalent & Substitute Parts

Part Overview

The MA3D650 is a diode array manufactured by Panasonic Electronic Components, configured as a 1 Pair Common Cathode rectifier with 200 V reverse voltage rating and 10 A average rectified current per diode. The device is packaged in TO-220-3 Full Pack through-hole configuration and operates across a junction temperature range of -40°C to 150°C.

The MA3D650 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where the original part is no longer manufactured or stocked.

Substiute Parts

MA3D650

Panasonic Electronic ComponentsIn Stock: 800MA3D650 Datasheet

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FFPF20UP20DNTU

onsemiIn Stock: 3315FFPF20UP20DNTU Datasheet

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MURF1620CTG

onsemiIn Stock: 17223MURF1620CTG Datasheet

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RF1001T2D

Rohm SemiconductorIn Stock: 10394RF1001T2D Datasheet

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RF1601T2D

Rohm SemiconductorIn Stock: 2124RF1601T2D Datasheet

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RFN10T2D

Rohm SemiconductorIn Stock: 2491RFN10T2D Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MA3D650 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

• Diode Configuration: 1 Pair Common Cathode (must match exactly)
• Voltage - DC Reverse (Vr) (Max): 200 V (must equal or exceed)
• Current - Average Rectified (Io) (per Diode): 10 A (must equal or exceed)
• Mounting Type: Through Hole (must match)
• Package / Case: TO-220-3 Full Pack (must match)

Secondary Parameters for Compatibility Assessment:

• Voltage - Forward (Vf) (Max) @ If: Acceptable within engineering tolerance
• Reverse Recovery Time (trr): Acceptable within engineering tolerance
• Current - Reverse Leakage @ Vr: Acceptable within engineering tolerance
• Operating Temperature - Junction: Must support minimum -40°C to 150°C range

Substitute parts are grouped based on their ability to meet or exceed the critical parameters while maintaining functional equivalence in the target application circuit.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Full Current Rating Match):

FFPF20UP20DNTU (onsemi) is the only substitute that maintains the full 10 A current rating of the MA3D650. This part is classified as obsolete but remains available in inventory. The FFPF20UP20DNTU uses Avalanche technology rather than Standard technology, providing enhanced reverse voltage protection. Forward voltage is slightly elevated at 1.15 V @ 10 A compared to 980 mV @ 5 A on the original part. Reverse recovery time is 45 ns versus 30 ns on the MA3D650. This part is ROHS3 compliant and suitable for applications requiring the full 10 A current capacity.

Active Product Alternatives (Reduced Current Rating):

MURF1620CTG (onsemi) is an active product with 8 A current rating, representing an 80% capacity match. This part is ROHS3 compliant and features improved reverse leakage characteristics (5 µA @ 200 V versus 100 µA @ 200 V). The SWITCHMODE™ series designation indicates optimization for switching applications. Reverse recovery time of 35 ns is acceptable for fast recovery applications.

RF1601T2D (Rohm Semiconductor) is an active product with 8 A current rating and identical reverse recovery time (30 ns) to the original MA3D650. This part is ROHS3 compliant with lower reverse leakage (10 µA @ 200 V). Forward voltage is 930 mV @ 8 A, lower than the original specification.

Lower Current Rating Alternatives:

RF1001T2D and RFN10T2D (both Rohm Semiconductor) are active products rated at 5 A, representing 50% capacity match to the MA3D650. Both are ROHS3 compliant. RF1001T2D features 30 ns reverse recovery time matching the original part. RFN10T2D offers superior reverse recovery time at 25 ns. These parts are suitable only for applications where 5 A current capacity is sufficient.

Selection Criteria:

For applications requiring full 10 A capacity, FFPF20UP20DNTU is the only available substitute. For applications tolerating reduced current capacity, MURF1620CTG or RF1601T2D are recommended as active products with current manufacturing status and ROHS3 compliance. All substitute parts maintain the TO-220-3 Full Pack package and 200 V reverse voltage rating required for direct mechanical and electrical substitution.

Frequently Asked Questions (FAQ)

Q: Can MURF1620CTG replace MA3D650 in all applications?

A: MURF1620CTG is rated at 8 A versus the MA3D650's 10 A rating. Substitution is valid only for applications where the circuit current requirement does not exceed 8 A per diode. The part is electrically and mechanically compatible in TO-220-3 Full Pack configuration and maintains the 200 V reverse voltage specification.

Q: What is the difference between Standard and Avalanche technology in these diode arrays?

A: The MA3D650 uses Standard technology, while FFPF20UP20DNTU uses Avalanche technology. Both are 1 Pair Common Cathode configurations with identical 200 V reverse voltage and 10 A current ratings. Avalanche technology provides enhanced reverse voltage protection characteristics. The selection between these technologies depends on application-specific requirements for reverse voltage transient handling.

Q: Are all substitute parts ROHS3 compliant?

A: FFPF20UP20DNTU, MURF1620CTG, RF1001T2D, RF1601T2D, and RFN10T2D are all ROHS3 compliant. The original MA3D650 RoHS status is not specified in the available documentation. All active product substitutes meet current environmental compliance standards.

Q: Can I use RF1001T2D or RFN10T2D as direct replacements?

A: RF1001T2D and RFN10T2D are rated at 5 A, which is 50% of the MA3D650's 10 A rating. These parts are mechanically compatible in TO-220-3 Full Pack configuration and maintain 200 V reverse voltage specification. Electrical substitution is valid only for circuits designed for 5 A or lower current operation per diode.

Q: What is the impact of different reverse recovery times on circuit performance?

A: Reverse recovery time (trr) values range from 25 ns (RFN10T2D) to 45 ns (FFPF20UP20DNTU) across the substitute parts, compared to 30 ns for the MA3D650. All parts are classified as Fast Recovery (≤ 500ns, > 200mA). Differences in trr within this range are acceptable for standard rectification applications. Applications with stringent switching frequency requirements should verify compatibility with specific circuit design parameters.

Q: Are there packaging differences between substitute parts?

A: All substitute parts use TO-220-3 Full Pack through-hole packaging, identical to the MA3D650. Packaging variations exist only in supplier device package designations (TO-220D-A1, TO-220F-3, TO-220FP, TO-220FN), which represent manufacturer-specific internal classifications. Physical form factor and pin configuration remain identical across all parts.

Q: What is the operating temperature range difference between parts?

A: The MA3D650 operates from -40°C to 150°C junction temperature. FFPF20UP20DNTU and MURF1620CTG extend the lower temperature limit to -65°C. RF1001T2D, RF1601T2D, and RFN10T2D specify 150°C maximum without explicit lower temperature limit. For applications requiring operation below -40°C, FFPF20UP20DNTU or MURF1620CTG are required.

Q: Which substitute part has the lowest forward voltage drop?

A: RF1001T2D and RF1601T2D both specify 930 mV forward voltage at their respective rated currents (5 A and 8 A), compared to 980 mV @ 5 A for the MA3D650. MURF1620CTG specifies 975 mV @ 8 A. FFPF20UP20DNTU specifies 1.15 V @ 10 A. Lower forward voltage reduces power dissipation in rectification circuits.

Q: Is FFPF20UP20DNTU the only 10 A substitute available?

A: FFPF20UP20DNTU is the only substitute part listed that maintains the full 10 A current rating of the MA3D650. This part is classified as obsolete but remains available in inventory. For applications requiring 10 A capacity, this is the only available substitute from the provided parts list.