STPR1020CT Equivalent & Substitute Parts

Part Overview

The STPR1020CT is a general-purpose diode array manufactured by STMicroelectronics, configured as a 1 Pair Common Cathode rectifier with 200 V reverse voltage rating and 5 A average rectified current per diode. The device is packaged in a Through Hole TO-220-3 configuration. This part is classified as Obsolete, making equivalent and substitute parts necessary for ongoing design requirements and procurement continuity. Substitute parts must maintain compatibility with the same diode configuration, voltage rating, and mounting type while accommodating variations in current capacity and thermal characteristics.

Substiute Parts

STPR1020CT

STMicroelectronicsIn Stock: 6468STPR1020CT Datasheet

Current PartRFQ

STTH1002CT

STMicroelectronicsIn Stock: 40467STTH1002CT Datasheet

DirectRFQ

BYQ28E-200,127

WeEn SemiconductorsIn Stock: 1481BYQ28E-200,127 Datasheet

SimilarRFQ

SDUR1020CT

SMC Diode SolutionsIn Stock: 2713SDUR1020CT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the STPR1020CT is determined by strict adherence to the following electrical and mechanical parameters:

Primary Compatibility Criteria:

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

Secondary Compatibility Criteria (Allowable Variation):

• Current - Average Rectified (Io) (per Diode): Equal to or greater than 5 A
• Voltage - Forward (Vf) (Max): Within acceptable operating range
• Reverse Recovery Time (trr): Within fast recovery specification
• Current - Reverse Leakage @ Vr: Lower values indicate improved performance
• Operating Temperature - Junction: Must support application requirements
• RoHS and REACH Compliance: ROHS3 Compliant required

All substitute parts listed maintain the mandatory electrical and mechanical parameters while offering enhanced or equivalent performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

STTH1002CT (STMicroelectronics)

The STTH1002CT is a direct substitute from the same manufacturer with Active product status. This part maintains all mandatory electrical and mechanical parameters while providing enhanced current capacity (8 A versus 5 A) and improved reverse recovery time (25 ns versus 30 ns). The STTH1002CT exhibits lower reverse leakage current (5 µA versus 50 µA), indicating superior performance characteristics. ROHS3 compliance and REACH Unaffected status align with the original part specifications. The higher maximum junction temperature (175°C) provides additional thermal margin. This substitute is suitable for direct replacement in applications where the original STPR1020CT is specified.

BYQ28E-200,127 (WeEn Semiconductors)

The BYQ28E-200,127 is a cross-manufacturer substitute offering the highest current capacity (10 A) among available options. All mandatory electrical and mechanical parameters are maintained. This part features equivalent reverse recovery time (25 ns) and lower reverse leakage current (10 µA). ROHS3 compliance and REACH Unaffected status are maintained. The maximum junction temperature rating (150°C) matches the original part. This substitute is applicable in applications requiring higher current handling capability within the same voltage and package constraints.

SDUR1020CT (SMC Diode Solutions)

The SDUR1020CT is a cross-manufacturer substitute with Active product status. This part maintains all mandatory electrical and mechanical parameters with forward voltage characteristics closely aligned to the original part (975 mV @ 5 A versus 990 mV @ 5 A). ROHS3 compliance is maintained; however, REACH Status is listed as Affected, requiring compliance verification for applications subject to REACH regulations. The operating temperature range (-55°C ~ 150°C) provides extended low-temperature capability. Current capacity is not specified in available documentation. This substitute is suitable for applications where REACH compliance is not a constraint.

Frequently Asked Questions (FAQ)

Q: Can the STTH1002CT replace the STPR1020CT in all applications?

A: The STTH1002CT maintains all mandatory electrical and mechanical parameters required for substitution. The higher current rating (8 A versus 5 A) and improved reverse recovery time (25 ns versus 30 ns) provide enhanced performance. Thermal design considerations should account for the higher maximum junction temperature (175°C). Direct replacement is supported in applications where the original STPR1020CT is specified.

Q: What is the primary difference between the three substitute parts?

A: All three substitutes maintain the 200 V reverse voltage rating, 1 Pair Common Cathode configuration, and TO-220-3 package. The primary differences are current capacity (STTH1002CT: 8 A, BYQ28E-200,127: 10 A, SDUR1020CT: not specified), reverse recovery time (STTH1002CT and BYQ28E-200,127: 25 ns, SDUR1020CT: 35 ns), and reverse leakage current characteristics. Manufacturer selection depends on supply chain availability and compliance requirements.

Q: Are all substitute parts RoHS3 compliant?

A: All three substitute parts are ROHS3 Compliant. However, the SDUR1020CT has REACH Status listed as Affected, while STTH1002CT and BYQ28E-200,127 are REACH Unaffected. Applications subject to REACH regulations should verify compliance requirements before selecting the SDUR1020CT.

Q: Does the TO-220-3 package remain consistent across all parts?

A: Yes, all substitute parts maintain the TO-220-3 package configuration with Through Hole mounting type. Physical and electrical interface compatibility is preserved across all listed substitutes.

Q: What is the significance of reverse recovery time differences?

A: Reverse recovery time (trr) affects switching characteristics and electromagnetic interference generation. The STPR1020CT specifies 30 ns, while STTH1002CT and BYQ28E-200,127 offer 25 ns, and SDUR1020CT specifies 35 ns. Lower reverse recovery time values indicate faster switching transitions. All parts meet the Fast Recovery classification (≤ 500ns, > 200mA).

Q: How do reverse leakage current values affect part selection?

A: Reverse leakage current indicates the quality of the diode junction. The STPR1020CT specifies 50 µA @ 200 V, while substitutes range from 5 µA to 10 µA. Lower reverse leakage current values indicate superior junction quality and reduced power dissipation in reverse bias conditions. This parameter becomes significant in high-reliability or low-power applications.

Q: Can the BYQ28E-200,127 be used in applications rated for 5 A operation?

A: The BYQ28E-200,127 is rated for 10 A average rectified current per diode, exceeding the original 5 A specification. This part can be used in applications rated for 5 A operation. The higher current rating provides design margin and does not create compatibility issues in lower-current applications.

Q: What inventory status should influence part selection?

A: STTH1002CT has the highest inventory availability (40,400 Pcs), followed by SDUR1020CT (2,648 Pcs) and BYQ28E-200,127 (1,431 Pcs). Procurement lead times and supply chain continuity should be evaluated based on application requirements and production volume.