STPR2040 Equivalent & Substitute Parts

Part Overview

The STPR2040 is a general-purpose diode array manufactured by Diodes Incorporated, configured as a 1 Pair Common Cathode rectifier with 400V reverse voltage rating and 10A average rectified current per diode. The device is packaged in a TO-220-3 through-hole format and is currently in active production status. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

STPR2040

Diodes IncorporatedIn Stock: 1026STPR2040 Datasheet

Current PartRFQ

ER1004CT_T0_00001

Panjit International Inc.In Stock: 2861ER1004CT_T0_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the STPR2040 are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Voltage - DC Reverse (Vr) (Max): 400 V
• Current - Average Rectified (Io) (per Diode): 10 A
• Package / Case: TO-220-3
• Mounting Type: Through Hole
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Reverse Recovery Time (trr): 35 ns
• Operating Temperature - Junction: -55°C to 150°C

Allowable Parameter Variations:

• Voltage - Forward (Vf) (Max): Substitute parts may operate at equal or lower forward voltage at rated current
• Current - Reverse Leakage @ Vr: Substitute parts may exhibit equal or lower reverse leakage current

The ER1004CT_T0_00001 manufactured by Panjit International Inc. meets all critical matching parameters and qualifies as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the STPR2040 and ER1004CT_T0_00001 are active production devices with ROHS3 compliance and REACH unaffected status. Selection between these parts is based on availability and supply chain requirements rather than electrical performance differentiation.

The ER1004CT_T0_00001 exhibits superior reverse leakage characteristics (1 µA versus 10 µA at 400 V), which represents an improvement over the primary part specification. Forward voltage characteristics are equivalent at the rated 10 A operating point.

Both devices are suitable for applications requiring 400 V, 10 A general-purpose rectification in TO-220-3 through-hole configurations across the -55°C to 150°C junction temperature range.

Frequently Asked Questions (FAQ)

Q: Can the ER1004CT_T0_00001 be used as a direct replacement for the STPR2040?

A: Yes. Both parts share identical diode configuration, reverse voltage rating, average rectified current, package type, mounting method, and operating temperature range. The ER1004CT_T0_00001 meets all critical electrical and mechanical parameters required for substitution.

Q: What is the significance of the forward voltage difference listed in the parameter comparison?

A: The STPR2040 forward voltage is specified at 10 A, while the ER1004CT_T0_00001 is specified at 5 A. At the common 10 A operating point, both devices maintain 1.3 V maximum forward voltage and are compatible for circuit design purposes.

Q: Are there any thermal or mounting considerations when substituting these parts?

A: No. Both devices operate across the identical junction temperature range (-55°C to 150°C) and use the same TO-220-3 through-hole package. Thermal management and PCB layout requirements remain unchanged.

Q: Does the lower reverse leakage current of the ER1004CT_T0_00001 affect circuit performance?

A: Lower reverse leakage current (1 µA versus 10 µA) represents improved performance characteristics. This does not create compatibility issues and may provide benefits in applications sensitive to leakage current.

Q: Are both parts compliant with environmental and regulatory standards?

A: Yes. Both the STPR2040 and ER1004CT_T0_00001 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the difference between the TO-220-3 and TO220AB package designations?

A: Both designations refer to the same three-lead through-hole package format. TO-220-3 is the standard case designation, while TO220AB (Type WX) is the supplier-specific package identifier. The physical dimensions and pin configuration are identical.