BDW93C Equivalent & Substitute Parts

Part Overview

The BDW93C is an NPN Darlington bipolar junction transistor manufactured by onsemi, rated for 100 V collector-emitter breakdown voltage and 12 A maximum collector current in a TO-220-3 through-hole package. This device is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design support and procurement continuity. Substitute parts must maintain electrical performance across critical parameters including voltage rating, current capacity, gain characteristics, and thermal specifications to ensure functional equivalence in existing circuit applications.

Substiute Parts

BDW93C

onsemiIn Stock: 21591BDW93C Datasheet

Current PartRFQ

BDW93CTU

onsemiIn Stock: 16313BDW93CTU Datasheet

DirectRFQ

BDW93C

STMicroelectronicsIn Stock: 21675BDW93C Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BDW93C are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are defined by the following parameters:

• Transistor Type: NPN - Darlington configuration
• Current Rating: 12 A maximum collector current
• Voltage Rating: 100 V collector-emitter breakdown voltage
• Saturation Characteristics: 3 V Vce saturation at specified base and collector currents
• Gain Specification: Minimum 750 hFE at 5 A collector current and 3 V Vce
• Power Dissipation: 80 W maximum
• Thermal Rating: 150°C maximum junction temperature
• Package: TO-220-3 through-hole configuration
• Compliance: ROHS3 and REACH requirements

Parts meeting all these criteria are classified as direct electrical and mechanical equivalents. Packaging variations (tube versus alternative formats) do not affect functional substitution when the core electrical specifications and mounting interface remain identical.

Parameter Comparison

Engineering Selection Recommendations

BDW93CTU (onsemi): This part is electrically and mechanically equivalent to the main BDW93C component. Both are manufactured by onsemi with identical electrical specifications. The BDW93CTU carries obsolete product status, matching the main part classification. Selection of this substitute is appropriate for applications requiring onsemi-sourced components where inventory availability aligns with procurement timelines.

BDW93C (STMicroelectronics): This part provides full electrical and mechanical equivalence with identical parameter specifications across all critical ratings. The STMicroelectronics variant maintains active product status, providing superior long-term availability and supply chain continuity compared to the obsolete onsemi BDW93C. Both variants satisfy ROHS3 and REACH compliance requirements. The STMicroelectronics BDW93C is the preferred substitute for new procurement and design continuity applications due to active product status.

Frequently Asked Questions (FAQ)

Q: Can BDW93CTU be used as a direct replacement for BDW93C?

A: Yes. The BDW93CTU manufactured by onsemi is electrically and mechanically equivalent to the BDW93C. All electrical parameters, including current rating, voltage rating, gain characteristics, and thermal specifications, are identical. The TO-220-3 package interface is unchanged. The only difference is packaging format (tube), which does not affect functional substitution.

Q: What is the difference between the onsemi BDW93C and the STMicroelectronics BDW93C?

A: Both parts are electrically and mechanically identical across all specified parameters. The primary distinction is manufacturer and product status. The STMicroelectronics BDW93C maintains active product status, while the onsemi BDW93C is classified as obsolete. For new designs and long-term supply assurance, the STMicroelectronics variant is preferred.

Q: Are there any package differences between these substitute parts?

A: All three parts use the TO-220-3 through-hole package. The onsemi BDW93C and BDW93CTU are supplied in different packaging formats (the main part in standard packaging, BDW93CTU in tube), but the component package itself remains TO-220-3. The STMicroelectronics BDW93C is supplied in tube format. These packaging differences do not affect circuit-level compatibility or mounting interface.

Q: Can I use these substitutes in high-temperature applications?

A: All three parts are rated for 150°C maximum junction temperature. Selection among these substitutes does not change thermal capability. Thermal management design must account for the 80 W maximum power dissipation rating regardless of which equivalent part is selected.

Q: Are all substitutes compliant with environmental regulations?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected. Regulatory compliance is maintained across all substitute selections.

Q: Which substitute should I select for new designs?

A: The STMicroelectronics BDW93C is the recommended selection for new designs due to active product status, ensuring long-term availability and supply chain stability. This part maintains full electrical and mechanical equivalence with the obsolete onsemi BDW93C while providing superior procurement continuity.