TIP41A Equivalent & Substitute Parts

Part Overview

The TIP41A is a Bipolar (BJT) Transistor manufactured by STMicroelectronics, classified as an NPN-type power transistor in the TO-220-3 package. This component is rated for 60 V collector-emitter breakdown voltage and 6 A maximum collector current, with a maximum power dissipation of 2 W. The TIP41A is designated as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement requirements.

Substiute Parts

TIP41A

STMicroelectronicsIn Stock: 2808TIP41A Datasheet

Current PartRFQ

TIP41AG

onsemiIn Stock: 2427TIP41AG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TIP41A is determined by strict electrical and mechanical parameter matching within the NPN Bipolar (BJT) Transistor category. The following parameters establish substitution eligibility:

Critical Matching Parameters:

• Transistor Type: NPN
• Current - Collector (Ic) (Max): 6 A
• Voltage - Collector Emitter Breakdown (Max): 60 V
• Vce Saturation (Max) @ Ib, Ic: 1.5V @ 600mA, 6A
• Current - Collector Cutoff (Max): 700 µA
• DC Current Gain (hFE) (Min) @ Ic, Vce: 15 @ 3A, 4V
• Power - Max: 2 W
• Package / Case: TO-220-3
• Mounting Type: Through Hole

The TIP41AG manufactured by onsemi meets all critical electrical specifications and maintains identical package configuration, establishing it as a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The TIP41AG manufactured by onsemi is a direct functional equivalent to the obsolete TIP41A. Both components share identical electrical specifications across all critical parameters and maintain the same TO-220-3 package configuration for through-hole mounting applications.

Product Status Consideration: The TIP41A is designated Obsolete, while the TIP41AG carries a Last Time Buy status. This distinction indicates that the TIP41AG remains available for procurement but with a defined end-of-life window. For new designs or long-term production requirements, component selection should account for this product status.

Compliance Alignment: Both the TIP41A and TIP41AG maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory compatibility across applications subject to these standards.

Thermal Operating Range: The TIP41AG provides an extended operating temperature range (-65°C ~ 150°C) compared to the TIP41A specification (150°C maximum). This extended range does not restrict substitution and may provide additional design margin in temperature-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can the TIP41AG directly replace the TIP41A in existing circuit designs?

A: Yes. The TIP41AG meets all electrical specifications of the TIP41A, including collector current (6 A), collector-emitter breakdown voltage (60 V), saturation voltage, cutoff current, and DC current gain. Both components use the TO-220-3 package, enabling direct pin-compatible substitution without circuit modification.

Q: What is the significance of the TIP41AG Last Time Buy status?

A: Last Time Buy status indicates that onsemi has announced a defined end-of-life date for the TIP41AG. Procurement planning should account for this timeline. Current inventory availability is 2345 pieces.

Q: Are there thermal performance differences between the TIP41A and TIP41AG?

A: Both components are rated for 2 W maximum power dissipation. The TIP41AG specifies an extended operating temperature range (-65°C ~ 150°C) versus the TIP41A (150°C maximum). This difference does not affect substitution suitability and may provide additional thermal margin in certain applications.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the TIP41A and TIP41AG are ROHS3 compliant and REACH Unaffected, meeting equivalent regulatory requirements for restricted substance use and environmental compliance.

Q: Is the TO-220-3 package identical between both parts?

A: Yes. Both components use the TO-220-3 package configuration for through-hole mounting. Pin assignments and mechanical dimensions are identical, enabling direct board-level substitution.

Q: What is the difference between the TIP41A and TIP41AG packaging?

A: The TIP41A is supplied in standard packaging, while the TIP41AG is supplied in Tube packaging. This difference affects handling and storage but does not impact electrical performance or circuit compatibility.