BFP 420F E6327 Equivalent & Substitute Parts

Part Overview

The BFP 420F E6327 is an RF transistor manufactured by Infineon Technologies, classified as an NPN bipolar junction transistor (BJT) designed for high-frequency applications. This device operates at frequencies up to 25 GHz with a maximum collector-emitter breakdown voltage of 5V and a power dissipation rating of 160 mW in a surface mount 4-TSFP package.

The BFP 420F E6327 is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

BFP 420F E6327

Infineon TechnologiesIn Stock: 885BFP 420F E6327 Datasheet

Current PartRFQ

55GN01FA-TL-H

onsemiIn Stock: 859855GN01FA-TL-H Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BFP 420F E6327 is determined by the following critical parameters:

Primary Substitution Criteria:

• Transistor Type: NPN configuration required
• Voltage Rating: Collector-emitter breakdown voltage must meet or exceed application requirements
• Frequency Performance: Transition frequency must support the intended RF operating band
• Power Dissipation: Maximum power rating must accommodate circuit power levels
• Current Capability: Maximum collector current must satisfy circuit demands
• Mounting Type: Surface mount compatibility for PCB integration
• Package Compatibility: Physical and electrical pin configuration alignment

The BFP 420F E6327 operates at 25 GHz transition frequency with 5V breakdown voltage and 160 mW power rating. Substitute parts must maintain NPN topology and surface mount characteristics while meeting or exceeding these electrical specifications to ensure functional equivalence in RF applications.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The BFP 420F E6327 is classified as obsolete, making the identification of active substitute parts essential for ongoing supply and production support. The 55GN01FA-TL-H is an active product from onsemi, ensuring continued availability and manufacturing support.

Compliance and Certification: Both the main part and substitute part maintain identical REACH and ECCN classifications (REACH Unaffected, EAR99), confirming regulatory equivalence for export and environmental compliance purposes. Both devices carry MSL Level 1 (Unlimited) moisture sensitivity ratings, indicating equivalent handling and storage requirements.

Electrical Performance Trade-offs: The 55GN01FA-TL-H substitute provides higher voltage rating (10V vs. 5V), increased power dissipation capability (250 mW vs. 160 mW), and higher maximum collector current (70 mA vs. 35 mA). However, the transition frequency of the substitute (4.5–5.5 GHz) is significantly lower than the main part (25 GHz). This frequency limitation restricts the substitute to lower-frequency RF applications and may not be suitable for circuits designed specifically for 25 GHz operation.

Package Consideration: The main part uses a 4-TSFP package while the substitute uses a 3-SSFP package. Physical and electrical pin configurations differ, requiring PCB layout and schematic modifications for implementation.

Frequently Asked Questions (FAQ)

Q: Can the 55GN01FA-TL-H directly replace the BFP 420F E6327 without circuit modifications?

A: No. The substitute part operates at a maximum transition frequency of 5.5 GHz, compared to the main part's 25 GHz specification. Additionally, the package types differ (4-TSFP vs. 3-SSFP), requiring PCB layout changes. Direct substitution is not possible without circuit redesign and validation.

Q: What is the primary limitation of using the 55GN01FA-TL-H as a substitute?

A: The transition frequency of 4.5–5.5 GHz is substantially lower than the 25 GHz specification of the BFP 420F E6327. This makes the substitute unsuitable for applications requiring high-frequency RF performance above 5.5 GHz.

Q: Are there compliance or regulatory differences between the main part and substitute?

A: No. Both parts share identical REACH and ECCN classifications (REACH Unaffected, EAR99) and identical MSL ratings (Level 1, Unlimited), confirming regulatory and environmental compliance equivalence.

Q: What are the advantages of the 55GN01FA-TL-H substitute in terms of electrical ratings?

A: The substitute provides higher voltage rating (10V vs. 5V), greater power dissipation capability (250 mW vs. 160 mW), and higher maximum collector current (70 mA vs. 35 mA). These enhanced ratings provide design margin for applications operating within the substitute's frequency range.

Q: Is the 55GN01FA-TL-H an active product?

A: Yes. The 55GN01FA-TL-H is classified as an active product from onsemi, ensuring continued manufacturing availability and supply chain support, unlike the obsolete BFP 420F E6327.

Q: What package considerations apply when implementing the 55GN01FA-TL-H?

A: The substitute uses a 3-SSFP package (SC-81 case) compared to the main part's 4-TSFP package. Pin count and physical dimensions differ, requiring complete PCB footprint redesign and schematic pin reassignment.