TIP41-BP Equivalent & Substitute Parts

Part Overview

The TIP41-BP is a Bipolar (BJT) NPN transistor manufactured by Micro Commercial Co, rated for 40 V collector-emitter breakdown voltage and 6 A maximum collector current in a TO-220AB through-hole package. This device is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support and procurement continuity. The TIP41-BP serves applications requiring medium-voltage, medium-current NPN switching and amplification in thermal management applications where the TO-220 package provides adequate heat dissipation.

Substiute Parts

TIP41-BP

Micro Commercial CoIn Stock: 970TIP41-BP Datasheet

Current PartRFQ

TIP41C-BP

Micro Commercial CoIn Stock: 14996TIP41C-BP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete TIP41-BP is permissible with the TIP41C-BP based on the following electrical and mechanical compatibility criteria:

Matching Parameters (Substitution Basis):

• Transistor Type: Both are NPN
• Current - Collector (Ic) (Max): Both rated 6 A
• Power - Max: Both rated 2 W
• Vce Saturation (Max): Both 1.5V @ 600mA, 6A
• Frequency - Transition: Both 3 MHz
• Operating Temperature (TJ): Both 150°C
• Package / Case: Both TO-220-3
• Mounting Type: Both Through Hole
• RoHS Status: Both ROHS3 Compliant
• Moisture Sensitivity Level: Both MSL 1 (Unlimited)

Differing Parameter:

• Voltage - Collector Emitter Breakdown (Max): TIP41-BP rated 40 V; TIP41C-BP rated 100 V

The TIP41C-BP provides higher voltage rating (100 V versus 40 V), making it suitable for applications operating at or below the original 40 V specification. The higher voltage rating does not restrict use in lower-voltage applications. Both devices share identical current, power, saturation, and frequency characteristics, ensuring functional equivalence in switching and amplification circuits.

Parameter Comparison

Engineering Selection Recommendations

The TIP41C-BP is the direct substitute for the obsolete TIP41-BP. Selection of the TIP41C-BP is based on the following engineering factors:

Product Status: The TIP41-BP is classified as obsolete, whereas the TIP41C-BP maintains active product status with established supply chain availability (14,950 pcs in stock versus 883 pcs for the original part).

Regulatory Compliance: Both devices are ROHS3 compliant and carry identical environmental certifications (MSL 1, ECCN EAR99, HTSUS 8541.29.0095), ensuring regulatory equivalence for procurement and deployment.

Electrical Compatibility: The TIP41C-BP provides a superset of the electrical specifications of the TIP41-BP. The increased voltage rating (100 V versus 40 V) does not degrade performance in circuits designed for 40 V operation. All current, power dissipation, saturation, and frequency parameters are identical, ensuring drop-in compatibility at the circuit level.

Packaging and Mounting: Both devices use identical TO-220-3 through-hole packaging, requiring no modifications to PCB layouts, heatsink interfaces, or assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the TIP41C-BP be used as a direct replacement for the TIP41-BP in existing designs?

A: Yes. The TIP41C-BP is electrically and mechanically compatible with the TIP41-BP. Both devices share identical current ratings (6 A), power dissipation (2 W), saturation characteristics, frequency response, and TO-220-3 package specifications. No circuit modifications are required.

Q: Why does the TIP41C-BP have a higher voltage rating (100 V) than the TIP41-BP (40 V)?

A: The TIP41C-BP is a higher-voltage variant within the TIP41 product family. The increased voltage rating provides design flexibility for applications requiring higher voltage headroom. In circuits operating at or below 40 V, the higher rating does not affect performance or reliability.

Q: Are there any thermal or heat dissipation differences between these devices?

A: No. Both devices are rated for 2 W maximum power dissipation and 150°C maximum junction temperature. Both use the TO-220-3 package, which provides identical thermal characteristics and heatsink mounting interfaces.

Q: What is the difference in DC current gain between the TIP41-BP and TIP41C-BP?

A: The TIP41-BP specifies DC current gain (hFE) of 30 minimum at 300 mA and 4 V. The TIP41C-BP specifies 15 minimum at 3 A and 4 V. These measurements are taken at different operating points and reflect the different voltage ratings. For applications operating within the original 40 V specification, the TIP41-BP's hFE specification applies to the lower current condition, while the TIP41C-BP's specification reflects performance at higher collector current.

Q: Is the TIP41C-BP available in the same packaging as the TIP41-BP?

A: Yes. Both devices use TO-220-3 through-hole packaging. The TIP41C-BP is supplied in tube packaging, whereas the TIP41-BP was supplied without specified packaging. The functional package remains identical for PCB assembly and thermal management purposes.

Q: Are both devices RoHS compliant?

A: Yes. Both the TIP41-BP and TIP41C-BP are ROHS3 compliant and carry identical environmental certifications, including MSL 1 (Unlimited) moisture sensitivity level.