Equivalent & Substitute Parts Reference: 2SC4081UBTLR

Part Overview

The Rohm Semiconductor 2SC4081UBTLR is an NPN Bipolar Junction Transistor (BJT) with a maximum collector-emitter breakdown voltage of 50 V, maximum collector current of 150 mA, and transition frequency of 180 MHz. It features a surface mount UMT3F package (SC-85) and is RoHS3 compliant. The product status is “Not For New Designs,” indicating that alternative or substitute models may be required to ensure ongoing production compatibility or new project development.

Substiute Parts

2SC4081UBTLR

Rohm SemiconductorIn Stock: 124672SC4081UBTLR Datasheet

Current PartRFQ

2SCR523UBTL

Rohm SemiconductorIn Stock: 1003222SCR523UBTL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is based strictly on matching transistor type, maximum collector-emitter breakdown voltage, collector current rating, DC current gain, package type, mounting type, and compliance criteria. Only those parts explicitly listed for substitution and meeting these electrical and mechanical parameters are included. All substitute relationship logic is limited to parameters provided: transistor type, current, voltage, gain, package/case, and compliance attributes.

Parameter Comparison

Engineering Selection Recommendations

The 2SC4081UBTLR is designated “Not For New Designs.” Substitute part 2SCR523UBTL is “Active.” Both are RoHS3 compliant and unaffected by REACH regulations, with identical Moisture Sensitivity Level ratings and package types. Selection between these options can be based on product status and compliance certifications as supplied.

Frequently Asked Questions (FAQ)

Q: What electrical parameters must match for BJT substitution in this category?
A: Substitution requires equivalent transistor type (NPN), maximum collector-emitter breakdown voltage, maximum collector current, DC current gain, package/case, and compliance standards.

Q: Are surface mount package and device marking important in substitution?
A: The substitute device must use the same mounting type and package (SC-85, UMT3F) to ensure form, fit, and compatibility in the assembly process.

Q: How does product status affect substitute selection?
A: Substitute parts with “Active” status should be selected when the main part is “Not For New Designs” to ensure continued availability.

Q: What compliance certifications are needed for substitution?
A: Substitute parts must be ROHS3 compliant, REACH unaffected, and meet any listed Moisture Sensitivity Levels.

Q: Does transition frequency affect compatibility?
A: Only parameters explicitly provided determine compatibility. If transition frequency is specified and matches the application requirement, include it in the selection criteria.