TIP141 Equivalent & Substitute Parts

Part Overview

The TIP141 is an NPN Bipolar Junction Transistor (BJT) manufactured by Central Semiconductor Corp, rated for 80 V collector-emitter breakdown voltage and 10 A maximum collector current in a Through Hole TO-218-3 package. This device is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Substiute Parts

TIP141

Central Semiconductor CorpIn Stock: 1530TIP141 Datasheet

Current PartRFQ

TIP141G

onsemiIn Stock: 2473TIP141G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TIP141 is determined by the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Collector current rating: 10 A minimum
• Collector-emitter breakdown voltage: 80 V minimum
• DC current gain (hFE): 1000 minimum at specified conditions
• Power dissipation: 125 W minimum
• Operating temperature range: -65°C to 150°C minimum

Mechanical Compatibility Criteria:

• Mounting type: Through Hole
• Package compatibility: TO-218-3 or equivalent thermal/mechanical footprint

The TIP141G from onsemi meets all electrical parameters and operates within the same temperature range. While the TIP141G is a Darlington configuration (NPN - Darlington) rather than a standard NPN BJT, it maintains electrical equivalence across the specified maximum ratings and current gain specifications. The package transition from TO-218-3 to TO-247-3 represents a mechanical change that requires PCB layout verification.

Parameter Comparison

Engineering Selection Recommendations

The TIP141G from onsemi is the manufacturer-recommended substitute for the obsolete TIP141. Selection between these parts is based on the following factors:

Product Status Consideration: The TIP141 is classified as obsolete. The TIP141G provides continuity for applications requiring equivalent electrical performance while offering improved regulatory compliance.

Compliance Status: The TIP141G achieves ROHS3 compliance, whereas the original TIP141 is RoHS non-compliant. Both parts maintain REACH Unaffected status and EAR99 export classification.

Package Transition: The shift from TO-218-3 to TO-247-3 packaging requires PCB layout modification. Both packages are Through Hole configurations with similar thermal characteristics suitable for 125 W power dissipation applications.

Electrical Equivalence: All maximum electrical ratings align between the two parts. The TIP141G provides additional specification data (Vce saturation and collector cutoff current) not documented for the original TIP141, enabling more precise circuit analysis.

Frequently Asked Questions (FAQ)

Q: Can the TIP141G directly replace the TIP141 without circuit modification?

A: Electrical substitution is valid. The TIP141G meets or exceeds all specified electrical parameters of the TIP141. However, the package change from TO-218-3 to TO-247-3 requires PCB footprint modification. Pin configuration and thermal mounting interfaces differ between these packages.

Q: What is the significance of the Darlington configuration in the TIP141G?

A: The TIP141G uses a Darlington pair configuration, which provides higher current gain than a standard BJT. This does not prevent substitution when the specified hFE minimum of 1000 is met. The Darlington structure may affect switching speed and saturation voltage characteristics in specific circuit topologies.

Q: Are there mechanical compatibility issues between TO-218-3 and TO-247-3 packages?

A: Yes. These packages have different physical dimensions, pin spacing, and mounting hole configurations. PCB redesign is required for package substitution. Both packages support Through Hole mounting and are rated for equivalent power dissipation (125 W).

Q: Does the RoHS3 compliance of the TIP141G affect electrical performance?

A: No. RoHS3 compliance relates to material composition and manufacturing process, not electrical characteristics. The TIP141G maintains identical electrical specifications to the TIP141 while meeting modern regulatory requirements.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: (1) Collector current rating ≥ 10 A, (2) Collector-emitter breakdown voltage ≥ 80 V, (3) DC current gain ≥ 1000 at specified conditions, (4) Power rating ≥ 125 W, (5) Operating temperature range encompassing -65°C to 150°C, and (6) Through Hole mounting type.

Q: Is the TIP142G mentioned in the substitute list a valid alternative?

A: The TIP142G is listed as an additional substitute option. Verification of its electrical and mechanical specifications against the TIP141 requirements is necessary to confirm substitution validity.