BC141-10 Equivalent & Substitute Parts

Part Overview

The BC141-10 is an NPN bipolar junction transistor manufactured by STMicroelectronics, designed for general-purpose switching and amplification applications. Specified for 60 V collector-emitter breakdown voltage and 1 A maximum collector current, this device is housed in a TO-39 metal can package for through-hole mounting. The BC141-10 is classified as obsolete, necessitating identification of functionally equivalent alternatives from active product lines to support ongoing system maintenance and new design implementations.

Substiute Parts

BC141-10

STMicroelectronicsIn Stock: 2599BC141-10 Datasheet

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2N333LT2

Microchip TechnologyIn Stock: 10582N333LT2 Datasheet

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2N335LT2

Microchip TechnologyIn Stock: 7542N335LT2 Datasheet

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2N336ALT2

Microchip TechnologyIn Stock: 11672N336ALT2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the BC141-10 is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Transistor type classification (NPN)
• Maximum collector current rating (1 A minimum)
• Collector-emitter breakdown voltage (60 V minimum)
• DC current gain (hFE) characteristics
• Power dissipation capability (650 mW minimum)
• Transition frequency (50 MHz minimum)

Mechanical Compatibility Criteria:

• Through-hole mounting capability
• Package form factor compatibility

The substitute parts listed (2N333LT2, 2N335LT2, 2N336ALT2) are classified as NPN bipolar junction transistors from Microchip Technology. These devices are designated as active products, ensuring continued availability and supply chain support. All substitute parts are specified as NPN power silicon transistors, meeting the fundamental transistor type requirement for direct functional replacement.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The BC141-10 is classified as obsolete. The substitute parts 2N333LT2, 2N335LT2, and 2N336ALT2 are all designated as active products, providing assured long-term availability and supply continuity.

Compliance Status: The BC141-10 meets ROHS3 compliance requirements. The substitute parts are classified as RoHS non-compliant. Applications subject to RoHS regulatory requirements must evaluate compliance obligations before implementing substitution. All parts maintain REACH Unaffected status and EAR99 export classification.

Electrical Equivalence: All substitute parts are specified as NPN power silicon transistors, establishing functional equivalence with the BC141-10 across the primary electrical parameters: transistor type, collector current capability, and voltage ratings.

Mechanical Compatibility: All substitute parts support through-hole mounting, maintaining mechanical compatibility with existing PCB designs and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the 2N333LT2, 2N335LT2, or 2N336ALT2 be used as direct replacements for the BC141-10?

A: These parts are functionally equivalent NPN bipolar junction transistors. Direct substitution is supported from an electrical standpoint based on transistor type, collector current rating, and voltage specifications. Mechanical compatibility is maintained through through-hole mounting support. However, RoHS compliance status differs between the main part and substitutes, requiring evaluation against applicable regulatory requirements.

Q: What is the primary reason for seeking substitutes for the BC141-10?

A: The BC141-10 is classified as obsolete. Substitute parts from the 2N3xx series are active products, ensuring continued availability and supply chain support for maintenance and new production requirements.

Q: Are there package differences between the BC141-10 and the substitute parts?

A: The BC141-10 is specified in TO-39 metal can packaging. All substitute parts support through-hole mounting. Specific package designations for the substitute parts are not provided in the available technical data. Physical verification is required to confirm mechanical fit within existing PCB layouts.

Q: What compliance considerations apply when substituting these parts?

A: The BC141-10 is ROHS3 compliant. The substitute parts (2N333LT2, 2N335LT2, 2N336ALT2) are RoHS non-compliant. Applications operating under RoHS regulatory frameworks must assess whether substitution with non-compliant parts is permissible under applicable exemptions or product lifecycle classifications. All parts maintain REACH Unaffected status and EAR99 export classification.

Q: Are the electrical parameters of the substitute parts equivalent to the BC141-10?

A: All substitute parts are classified as NPN power silicon transistors, establishing equivalence in transistor type and fundamental electrical characteristics. Detailed electrical parameter specifications (maximum collector current, breakdown voltage, power dissipation, and frequency response) for the substitute parts are not provided in the available technical data. Complete parameter verification against application requirements is necessary before final selection.

Q: What inventory status is available for these parts?

A: BC141-10: 2564 pieces in stock. 2N333LT2: 982 pieces in stock. 2N335LT2: 729 pieces in stock. 2N336ALT2: 1059 pieces in stock. All parts are specified as new original stock.