MUR620CT Equivalent & Substitute Parts

Part Overview

The MUR620CT is a diode array rectifier manufactured by onsemi, configured as a 1 Pair Common Cathode design rated for 200 V DC reverse voltage and 3 A average rectified current per diode. The component is housed in a TO-220-3 through-hole package and features fast recovery characteristics with a 35 ns reverse recovery time. The MUR620CT is classified as obsolete, necessitating identification of equivalent substitute components for new designs and ongoing production requirements. Equivalent parts maintain identical electrical specifications and mechanical compatibility while offering active product status and improved compliance certifications.

Substiute Parts

MUR620CT

onsemiIn Stock: 1388MUR620CT Datasheet

Current PartRFQ

MUR620CTG

onsemiIn Stock: 8210MUR620CTG Datasheet

DirectRFQ

RF601T2D

Rohm SemiconductorIn Stock: 3412RF601T2D Datasheet

SimilarRFQ

STTH602CT

STMicroelectronicsIn Stock: 20359STTH602CT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MUR620CT are qualified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Primary Matching Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io) (per Diode): 3 A
• Package / Case: TO-220-3
• Mounting Type: Through Hole
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Secondary Compatibility Parameters:

• Voltage - Forward (Vf) (Max) @ If: Within acceptable operating range
• Reverse Recovery Time (trr): Fast recovery characteristics maintained
• Current - Reverse Leakage @ Vr: Within specified limits
• Operating Temperature - Junction: Minimum -65°C to maximum 175°C

Substitute parts are classified as either Direct Equivalents or Similar Alternatives based on parameter alignment and manufacturer compatibility.

Parameter Comparison

Engineering Selection Recommendations

MUR620CTG (Direct Equivalent - Recommended Primary Substitute)

The MUR620CTG is the direct equivalent substitute for the obsolete MUR620CT. Both components are manufactured by onsemi and share identical electrical specifications: 200 V reverse voltage, 3 A average rectified current, 975 mV forward voltage at 3 A, and 35 ns reverse recovery time. The MUR620CTG maintains active product status and achieves ROHS3 compliance, addressing the regulatory limitations of the original MUR620CT. Mechanical compatibility is confirmed through identical TO-220-3 through-hole packaging. The MUR620CTG is supplied in tube packaging and maintains full functional and thermal compatibility across the operating temperature range of -65°C to 175°C.

STTH602CT (Cross-Manufacturer Substitute)

The STTH602CT, manufactured by STMicroelectronics, qualifies as an active substitute meeting all primary electrical and mechanical parameters. The component maintains 200 V reverse voltage, 3 A average rectified current, and TO-220-3 through-hole packaging. The STTH602CT exhibits superior reverse leakage characteristics at 3 µA compared to the MUR620CT specification of 5 µA, and achieves a 30 ns reverse recovery time. Forward voltage is specified at 1.1 V at 3 A, representing a measurable increase from the MUR620CT baseline. The STTH602CT is ROHS3 compliant and maintains the full -65°C to 175°C operating temperature range. High inventory availability (20,300 pcs) supports production continuity.

RF601T2D (Cross-Manufacturer Substitute with Parameter Variance)

The RF601T2D, manufactured by Rohm Semiconductor, meets core electrical and mechanical substitution criteria with documented parameter variance. The component maintains 200 V reverse voltage, 3 A average rectified current, and through-hole mounting in TO-220-3 Full Pack configuration. The RF601T2D demonstrates improved reverse recovery time at 25 ns and reduced forward voltage at 930 mV at 3 A. The maximum operating temperature is specified at 150°C, representing a 25°C reduction from the MUR620CT upper limit. This temperature limitation requires thermal analysis for applications operating above 150°C junction temperature. The RF601T2D is ROHS3 compliant and available in active product status.

Frequently Asked Questions (FAQ)

Q: Can the MUR620CTG be used as a direct replacement for the MUR620CT without circuit modification?

A: Yes. The MUR620CTG is a direct equivalent manufactured by onsemi with identical electrical specifications and mechanical packaging. No circuit modification is required for functional substitution.

Q: What is the primary advantage of substituting the MUR620CT with MUR620CTG?

A: The MUR620CTG maintains active product status and achieves ROHS3 compliance, addressing the obsolete status and non-compliant regulatory classification of the original MUR620CT. Electrical performance is identical.

Q: Are cross-manufacturer substitutes (STTH602CT, RF601T2D) electrically equivalent to the MUR620CT?

A: Cross-manufacturer substitutes meet the core electrical parameters of 200 V reverse voltage and 3 A average rectified current. Secondary parameters including forward voltage, reverse recovery time, and reverse leakage current exhibit measurable variance within acceptable operating ranges. Thermal performance differs, particularly for the RF601T2D with a 150°C maximum junction temperature.

Q: What is the significance of the TO-220-3 Full Pack designation for the RF601T2D?

A: The TO-220-3 Full Pack designation indicates a variant of the standard TO-220-3 package. Mechanical compatibility with standard TO-220-3 through-hole PCB layouts is maintained. Packaging configuration differences do not affect electrical substitution capability.

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

A: The RF601T2D specifies 930 mV forward voltage at 3 A, representing the lowest value among all listed components. The MUR620CT and MUR620CTG both specify 975 mV, while the STTH602CT specifies 1.1 V at 3 A.

Q: Is the RF601T2D suitable for applications requiring operation above 150°C junction temperature?

A: No. The RF601T2D maximum junction temperature is specified at 150°C, limiting its use in applications requiring sustained operation above this threshold. The MUR620CT, MUR620CTG, and STTH602CT all support operation to 175°C.

Q: What inventory considerations apply to substitute part selection?

A: The MUR620CTG offers 8,120 pcs in stock, the STTH602CT offers 20,300 pcs, and the RF601T2D offers 3,375 pcs. Inventory availability should be evaluated against production volume and lead-time requirements.

Q: Do all substitute parts maintain the same reverse leakage current specification?

A: No. The MUR620CT and MUR620CTG specify 5 µA at 200 V. The STTH602CT specifies 3 µA at 200 V, and the RF601T2D specifies 10 µA at 200 V. Applications sensitive to leakage current should evaluate these differences.

Q: Are all substitute parts RoHS compliant?

A: The MUR620CT is RoHS non-compliant. The MUR620CTG, STTH602CT, and RF601T2D are all ROHS3 compliant, meeting current regulatory requirements for restricted substance elimination.