SR3040PT Equivalent & Substitute Parts

Part Overview

The SR3040PT is a Schottky diode array manufactured by Taiwan Semiconductor Corporation, configured as a 1 Pair Common Cathode arrangement in a TO-247-3 through-hole package. This component is rated for 40 V DC reverse voltage with 30 A average rectified current per diode and operates across a junction temperature range of -55°C to 125°C. The part is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical specifications.

Substiute Parts

SR3040PT

Taiwan Semiconductor CorporationIn Stock: 1239SR3040PT Datasheet

Current PartRFQ

SB3040PT_T0_00001

Panjit International Inc.In Stock: 2566SB3040PT_T0_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SR3040PT are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic requires that alternative components maintain identical values for the following parameters:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 40 V
• Current - Average Rectified (Io) (per Diode): 30 A
• Voltage - Forward (Vf) (Max) @ If: 550 mV @ 15 A
• Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)
• Package / Case: TO-247-3
• Mounting Type: Through Hole
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Parts meeting these criteria are classified as parametric equivalents and direct substitutes. Variations in secondary parameters such as reverse leakage current or maximum junction temperature do not disqualify substitution eligibility when all primary electrical and mechanical specifications align.

Parameter Comparison

Engineering Selection Recommendations

The SB3040PT_T0_00001 manufactured by Panjit International Inc. is a direct parametric equivalent to the SR3040PT. Both components satisfy identical electrical specifications for voltage rating, current capacity, forward voltage drop, and switching speed. Both parts are classified as Active product status, ROHS3 compliant, and REACH unaffected, confirming regulatory alignment for current and future applications.

The SB3040PT_T0_00001 exhibits lower reverse leakage current (200 µA versus 1 mA at 40 V) and an extended maximum junction temperature rating (-55°C to 150°C versus -55°C to 125°C). These characteristics represent performance enhancements relative to the primary part and do not introduce compatibility constraints. The identical TO-247-3 package and through-hole mounting configuration ensure mechanical and thermal interface compatibility without modification to printed circuit board layouts or thermal management systems.

Selection between SR3040PT and SB3040PT_T0_00001 is determined by availability, lead time, cost considerations, and supplier preference, as both components are functionally interchangeable within the specified electrical and thermal operating envelope.

Frequently Asked Questions (FAQ)

Q: Can the SB3040PT_T0_00001 be used as a direct replacement for the SR3040PT in existing designs?

A: Yes. The SB3040PT_T0_00001 meets all primary electrical specifications including 40 V reverse voltage rating, 30 A average rectified current, 550 mV forward voltage drop at 15 A, and fast recovery switching characteristics. The TO-247-3 package and through-hole mounting are identical, requiring no circuit board modifications.

Q: What is the significance of the difference in reverse leakage current between the two parts?

A: The SB3040PT_T0_00001 exhibits 200 µA reverse leakage at 40 V compared to 1 mA for the SR3040PT. Lower reverse leakage current represents improved performance and does not create compatibility issues. Applications sensitive to leakage current benefit from the SB3040PT_T0_00001 specification.

Q: Does the extended temperature range of the SB3040PT_T0_00001 affect compatibility?

A: No. The SB3040PT_T0_00001 operates from -55°C to 150°C, extending the upper limit by 25°C relative to the SR3040PT (-55°C to 125°C). This expanded range provides additional thermal margin and does not introduce constraints for applications operating within the SR3040PT temperature envelope.

Q: Are both parts suitable for high-current rectification applications?

A: Yes. Both the SR3040PT and SB3040PT_T0_00001 are rated for 30 A average rectified current per diode with Schottky technology, enabling efficient rectification in power conversion circuits. The TO-247-3 package provides adequate thermal dissipation for this current level with appropriate printed circuit board thermal design.

Q: What packaging format is used for both parts?

A: Both components are supplied in TO-247-3 through-hole packages in tube packaging format. This configuration is suitable for manual and automated assembly processes and provides standardized lead spacing and mounting hole dimensions.

Q: Are there any compliance or regulatory differences between the two parts?

A: No. Both the SR3040PT and SB3040PT_T0_00001 are ROHS3 compliant and REACH unaffected, confirming compliance with current environmental and hazardous substance regulations applicable to electronic components.