2SC4094-A Equivalent & Substitute Parts Reference

Part Overview

The 2SC4094-A is an NPN bipolar junction transistor (BJT) designed for RF applications, featuring a collector-emitter breakdown voltage of 10V, maximum frequency of 9GHz, and a maximum collector current of 65mA. Offered in a TO-253-4, TO-253AA surface mount package, this transistor is tailored for high-frequency, low-noise applications, with a typical noise figure of 1.2dB at 1GHz and maximum power dissipation of 200mW. The product status of the 2SC4094-A is Obsolete, making it necessary to identify alternative models that match or exceed the original's key electrical and mechanical parameters for ongoing production and maintenance.

Substiute Parts

2SC4094-A

CELIn Stock: 10822SC4094-A Datasheet

Current PartRFQ

BFU520XAR

NXP USA Inc.In Stock: 9312BFU520XAR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the 2SC4094-A is based strictly on the following key parameters: transistor type (NPN), voltage collector-emitter breakdown (minimum 10V), transition frequency (minimum 9GHz), noise figure, gain, maximum power dissipation, DC current gain at specified conditions, maximum collector current, operating temperature rating, mounting type (surface mount), and identical or compatible package/case (TO-253-4, TO-253AA). Only substitute parts meeting or exceeding these parameters are considered to ensure electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 2SC4094-A is classified as an obsolete product, which discontinues guaranteed supply and official support. The BFU520XAR is listed as an active component, offering continuity of supply. Both parts are compliant to REACH status and possess the ECCN code EAR99, with identical or equivalent packaging and moisture sensitivity level. The BFU520XAR meets RoHS3 requirements and includes automotive qualification (AEC-Q101), supporting broad industry use and regulatory compliance based on the input parameters provided.

Frequently Asked Questions (FAQ)

Q1: What determines if a substitute BJT is suitable for replacing the 2SC4094-A?
A1: Key substitution criteria include matching transistor type, equal or better voltage collector-emitter breakdown, comparable or higher transition frequency, suitable noise figure, gain, power dissipation, sufficient DC current gain, maximum collector current compatibility, matching operating temperature range, surface mount compatibility, and equivalent package/case.

Q2: Can the BFU520XAR be used as a direct substitute in applications designed for 2SC4094-A?
A2: The BFU520XAR matches on NPN type, voltage breakdown, frequency, packaging, mounting type, and regulatory compliance fields contained in the input parameters, and is grouped as a suitable substitute within these boundaries.

Q3: What are the packaging considerations for substituting these transistors?
A3: Both the 2SC4094-A and BFU520XAR use the TO-253-4, TO-253AA surface-mount package, supporting layout compatibility.

Q4: Why is it necessary to seek substitutes for the 2SC4094-A?
A4: The 2SC4094-A is listed as obsolete, requiring alternative models to maintain design, repair, or manufacturing processes.

Q5: Are there any compliance concerns when selecting from the listed substitutes?
A5: Both the 2SC4094-A and BFU520XAR are REACH unaffected, EAR99 classified, and share compatible moisture sensitivity levels, meeting the provided compliance parameters.