SDUR3040CT Equivalent & Substitute Parts

Part Overview

The SDUR3040CT is a general-purpose diode array manufactured by SMC Diode Solutions, configured as a 1 Pair Common Cathode rectifier with 400 V reverse voltage rating and 15 A average rectified current per diode. This component is housed in a TO-220-3 through-hole package and is classified as Active product status with full RoHS3 compliance.

Substitute parts are identified when electrical parameters remain constant while package or form factor differs. This reference enables circuit designers and procurement specialists to select alternative components when specific packaging constraints, inventory availability, or thermal management requirements necessitate a different package configuration.

Substiute Parts

SDUR3040CT

SMC Diode SolutionsIn Stock: 806SDUR3040CT Datasheet

Current PartRFQ

SDUR3040WT

SMC Diode SolutionsIn Stock: 5786SDUR3040WT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between SDUR3040CT and SDUR3040WT is based on electrical parameter equivalence. Both components share identical specifications across all critical electrical parameters: diode configuration, reverse voltage rating, average rectified current, forward voltage drop, reverse recovery time, reverse leakage current, and operating temperature range.

The primary distinction between these parts is the package configuration. SDUR3040CT utilizes a TO-220-3 package, while SDUR3040WT utilizes a TO-247-3 package. Both are through-hole mounting technologies with different physical footprints and thermal characteristics.

Key Parameters Determining Substitution:

• Diode Configuration: 1 Pair Common Cathode
• Voltage - DC Reverse (Vr) (Max): 400 V
• Current - Average Rectified (Io) (per Diode): 15 A
• Voltage - Forward (Vf) (Max) @ If: 1.25 V @ 15 A
• Reverse Recovery Time (trr): 45 ns
• Current - Reverse Leakage @ Vr: 10 µA @ 400 V
• Operating Temperature - Junction: -55°C ~ 150°C

Parameter Comparison

Engineering Selection Recommendations

Both SDUR3040CT and SDUR3040WT are Active products with identical electrical specifications and full regulatory compliance (RoHS3 and REACH). Selection between these components is determined by printed circuit board layout requirements and thermal management strategy.

The TO-220-3 package (SDUR3040CT) provides a compact form factor suitable for standard PCB designs with conventional through-hole mounting. The TO-247-3 package (SDUR3040WT) offers an alternative footprint with different lead spacing and mounting hole configuration.

Both components maintain identical electrical performance across all specified parameters, including voltage ratings, current capacity, forward voltage characteristics, and reverse recovery behavior. Component selection should be based on PCB design constraints, available mounting space, and thermal dissipation requirements specific to the application circuit.

Both parts carry MSL Level 1 (Unlimited) moisture sensitivity classification, indicating no special moisture control requirements during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can SDUR3040WT replace SDUR3040CT in an existing circuit design?

A: Electrical substitution is valid. Both components share identical electrical parameters: 400 V reverse voltage, 15 A average rectified current, 1.25 V forward voltage drop at 15 A, 45 ns reverse recovery time, and -55°C to 150°C operating temperature range. However, the TO-247-3 package footprint differs from the TO-220-3 package. PCB layout modification is required to accommodate the different pin spacing and mounting hole positions.

Q: What is the primary difference between SDUR3040CT and SDUR3040WT?

A: The components are electrically identical. The sole difference is the package configuration: SDUR3040CT uses TO-220-3 packaging, while SDUR3040WT uses TO-247-3 packaging. Both are through-hole mounted devices with different physical dimensions and lead configurations.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both SDUR3040CT and SDUR3040WT are RoHS3 compliant and REACH affected. Both carry MSL Level 1 (Unlimited) moisture sensitivity classification. Both maintain Active product status.

Q: Do these diode arrays have identical thermal characteristics?

A: Both components share identical electrical specifications and operating temperature range (-55°C to 150°C junction temperature). Thermal performance differences between TO-220-3 and TO-247-3 packages depend on PCB copper area, heatsink attachment, and thermal interface materials used in the specific application.

Q: Can I use SDUR3040CT and SDUR3040WT interchangeably in production?

A: Electrical interchangeability is confirmed. Physical interchangeability requires PCB redesign to accommodate the different package footprints. Both components are manufactured by SMC Diode Solutions and share the same base product number (SDUR3040), confirming parametric equivalence.

Q: What inventory status applies to these substitute parts?

A: SDUR3040CT has 753 pieces in stock. SDUR3040WT has 5700 pieces in stock. Both are available as new original components in tube packaging.