BFP640FE6327 Equivalent & Substitute Parts

Part Overview

The BFP640FE6327 is an RF transistor manufactured by Infineon Technologies, classified as a Bipolar Junction Transistor (BJT) with NPN configuration. This component is designed for RF applications operating at frequencies up to 40GHz with a maximum power dissipation of 200mW. The device features a 4.5V collector-emitter breakdown voltage and is packaged in a 4-TSFP surface mount configuration.

The BFP640FE6327 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

BFP640FE6327

Infineon TechnologiesIn Stock: 992BFP640FE6327 Datasheet

Current PartRFQ

2SC5415AE-TD-E

onsemiIn Stock: 15712SC5415AE-TD-E Datasheet

MFR RecommendedRFQ

MAPR-000912-500S00

MACOM Technology SolutionsIn Stock: 1006MAPR-000912-500S00 Datasheet

MFR RecommendedRFQ

MAPRST0912-350

MACOM Technology SolutionsIn Stock: 823MAPRST0912-350 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BFP640FE6327 is determined by alignment of the following critical parameters:

Primary Substitution Criteria:

• Transistor Type: NPN configuration required
• Frequency - Transition: Minimum 40GHz capability (or application-specific frequency match)
• Voltage - Collector Emitter Breakdown: Minimum 4.5V
• Power - Max: Minimum 200mW
• Current - Collector (Max): Minimum 50mA
• Mounting Type: Surface Mount preferred for PCB integration
• Noise Figure: Application-dependent; lower values preferred for low-noise RF circuits

Secondary Considerations:

• Product Status: Active status preferred for long-term availability
• Compliance: RoHS and REACH compliance status
• Moisture Sensitivity Level: MSL 1 (Unlimited) preferred

The substitute parts identified below are grouped based on their ability to meet or exceed the electrical and mechanical specifications of the BFP640FE6327 within the constraints of available component data.

Parameter Comparison

Engineering Selection Recommendations

2SC5415AE-TD-E (onsemi): This substitute is classified as obsolete, matching the product status of the BFP640FE6327. The 2SC5415AE-TD-E operates at a lower transition frequency (6.7GHz versus 40GHz) and higher voltage rating (12V versus 4.5V). This part is suitable only for applications where the lower frequency specification is acceptable and voltage headroom is required. The surface mount packaging (TO-243AA) differs from the 4-TSFP package of the main part, requiring PCB layout modification. RoHS3 compliance is confirmed.

MAPR-000912-500S00 (MACOM Technology Solutions): This substitute is classified as active, providing superior long-term availability compared to the obsolete BFP640FE6327. The MAPR-000912-500S00 is a high-power chassis mount device rated for 500W maximum power dissipation and 52.5A collector current. Transition frequency is not specified. This part is suitable for high-power RF applications requiring significantly higher power handling than the original 200mW specification. The chassis mount configuration represents a fundamental mechanical departure from the surface mount 4-TSFP package. RoHS3 compliance and REACH Unaffected status are confirmed. Operating temperature extends to 200°C.

MAPRST0912-350 (MACOM Technology Solutions): This substitute is classified as active, ensuring continued availability. The MAPRST0912-350 operates at 1.215GHz transition frequency with 350W maximum power dissipation and 32.5A collector current. Like the MAPR-000912-500S00, this is a chassis mount device designed for high-power applications. The electrical specifications differ substantially from the BFP640FE6327, particularly in frequency range and power class. This part is applicable to medium-to-high power RF systems where the lower frequency specification aligns with application requirements. RoHS3 compliance and REACH Unaffected status are confirmed. Operating temperature extends to 200°C.

Selection Guidance: For direct functional replacement in low-power, high-frequency RF circuits, the 2SC5415AE-TD-E offers the closest electrical profile, though with reduced frequency capability. For applications requiring higher power handling and extended operating temperature, the MACOM devices provide active product status and superior thermal performance, with the trade-off of significantly different mechanical packaging and lower frequency operation.

Frequently Asked Questions (FAQ)

Q: Can the 2SC5415AE-TD-E directly replace the BFP640FE6327 in a 40GHz RF circuit?

A: No. The 2SC5415AE-TD-E has a transition frequency of 6.7GHz, which is insufficient for 40GHz operation. This substitute is suitable only for applications operating at or below 6.7GHz. Circuit redesign and re-qualification are required if this part is selected.

Q: Why are the MACOM parts (MAPR-000912-500S00 and MAPRST0912-350) listed as substitutes when they are chassis mount devices?

A: These parts are listed based on the provided substitute data indicating they are recognized alternatives. However, their chassis mount configuration represents a fundamental mechanical incompatibility with the surface mount 4-TSFP package of the BFP640FE6327. These parts are suitable only for applications where complete circuit redesign and mechanical re-integration are feasible.

Q: What is the significance of the BFP640FE6327 being obsolete?

A: Obsolete status indicates the part is no longer manufactured or supported by Infineon Technologies. Existing inventory may be available through authorized distributors, but long-term supply cannot be guaranteed. Identifying active substitutes (such as the MACOM devices) is essential for new designs or long-term production planning.

Q: Are all substitute parts RoHS3 compliant?

A: The 2SC5415AE-TD-E, MAPR-000912-500S00, and MAPRST0912-350 are all confirmed RoHS3 compliant. The BFP640FE6327 RoHS status is not specified in the provided data.

Q: What is the difference between the two MACOM substitutes?

A: The MAPR-000912-500S00 is rated for 500W maximum power and 52.5A collector current with unspecified transition frequency. The MAPRST0912-350 is rated for 350W maximum power, 32.5A collector current, and 1.215GHz transition frequency. Selection between these depends on the specific power and frequency requirements of the application.

Q: Can I use a substitute part with higher voltage rating in a 4.5V circuit?

A: Higher voltage rating does not prevent use in lower voltage circuits. However, circuit design must ensure that the substitute part's electrical characteristics (gain, noise figure, frequency response) are compatible with the intended application. The 2SC5415AE-TD-E (12V rating) and MACOM devices (65V and 80V ratings) can operate in lower voltage circuits, but performance parameters may differ from the original BFP640FE6327.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and does not require special moisture control during storage or handling. All listed parts and the main component share this classification, eliminating moisture sensitivity as a substitution constraint.