BFP 740F E6327 Equivalent & Substitute Parts

Part Overview

The BFP 740F E6327 is an RF Transistor NPN manufactured by Infineon Technologies, designed for high-frequency applications up to 42GHz. This surface mount device operates at 4.7V collector-emitter breakdown voltage with 160mW maximum power dissipation and is housed in a 4-TSFP package. The product status is obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Substiute Parts

BFP 740F E6327

Infineon TechnologiesIn Stock: 866BFP 740F E6327 Datasheet

Current PartRFQ

2SC5488A-TL-H

onsemiIn Stock: 116162SC5488A-TL-H Datasheet

MFR RecommendedRFQ

MMBT5179

onsemiIn Stock: 2460MMBT5179 Datasheet

MFR RecommendedRFQ

MMBTH10-7-F

Diodes IncorporatedIn Stock: 10612MMBTH10-7-F Datasheet

MFR RecommendedRFQ

MMBTH10LT3G

onsemiIn Stock: 1163MMBTH10LT3G Datasheet

MFR RecommendedRFQ

PH1090-350L

MACOM Technology SolutionsIn Stock: 1026PH1090-350L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BFP 740F E6327 is constrained by the following critical parameters:

Primary Substitution Criteria:

• Transistor Type: NPN configuration required
• Voltage Rating: Collector-emitter breakdown voltage must equal or exceed 4.7V
• Frequency Performance: Transition frequency must support 42GHz operation or higher
• Power Dissipation: Maximum power rating must accommodate 160mW or greater
• Current Handling: Collector current maximum must support 30mA or higher
• Mounting: Surface mount configuration required
• Compliance: REACH Unaffected and EAR99 classification maintained

The substitute parts listed represent alternatives with varying frequency capabilities and voltage ratings. Due to the obsolete status of the BFP 740F E6327 and the specialized nature of 42GHz RF transistor applications, direct pin-for-pin and electrical equivalents are limited. Substitutes are grouped by their suitability for specific frequency bands and power requirements within RF circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The BFP 740F E6327 is classified as obsolete. All substitute parts listed maintain active product status, ensuring long-term availability and manufacturing support. Selection of active alternatives is necessary for new designs and ongoing production requirements.

Compliance and Certifications: All substitute parts maintain ROHS3 compliance and REACH Unaffected status, aligning with current regulatory requirements. The ECCN classification (EAR99) is consistent across all alternatives, supporting export and supply chain continuity.

Frequency-Dependent Selection:

• For applications requiring 42GHz operation: The BFP 740F E6327 operates at the highest frequency among all listed parts. No substitute part matches this 42GHz capability. Applications requiring this frequency band must evaluate alternative product lines or custom solutions.
• For applications operating below 7GHz: The 2SC5488A-TL-H (7GHz) provides the closest frequency match among active alternatives.
• For applications operating below 2GHz: The MMBT5179 (2GHz) is suitable.
• For applications operating below 650MHz: The MMBTH10-7-F or MMBTH10LT3G are applicable.

Voltage Rating Consideration: The BFP 740F E6327 operates at 4.7V. All substitute parts exceed this voltage rating, providing design margin. Higher voltage ratings do not preclude substitution in circuits designed for lower voltages, provided circuit topology accommodates the higher rating.

Power and Current Handling: The BFP 740F E6327 dissipates 160mW maximum at 30mA collector current. All substitute parts support equal or greater power dissipation and current handling, with the exception of the 2SC5488A-TL-H (100mW), which is lower. The PH1090-350L represents a high-power alternative suitable for applications requiring 350W dissipation and 17A collector current.

Package and Mounting: The BFP 740F E6327 uses a 4-TSFP surface mount package. Substitute parts employ standard surface mount packages (SOT-23-3, 3-SSFP, SC-81) or chassis mount configurations. PCB layout and thermal management modifications may be required when transitioning between package types.

Frequently Asked Questions (FAQ)

Q: Can the 2SC5488A-TL-H directly replace the BFP 740F E6327 in a 42GHz circuit?

A: No. The 2SC5488A-TL-H operates at 7GHz transition frequency, which is insufficient for 42GHz applications. Direct substitution is not possible for circuits requiring 42GHz performance. Alternative RF transistor product lines must be evaluated for high-frequency applications.

Q: What is the primary limitation when substituting the BFP 740F E6327?

A: The primary limitation is frequency capability. The BFP 740F E6327 operates at 42GHz, while all listed substitute parts operate at significantly lower frequencies (650MHz to 7GHz). Substitution is only viable for applications operating below the frequency rating of the selected substitute part.

Q: Are all substitute parts surface mount compatible with the original BFP 740F E6327 PCB layout?

A: No. The BFP 740F E6327 uses a 4-TSFP package, while substitute parts use different surface mount packages (SOT-23-3, 3-SSFP, SC-81) or chassis mount configurations. PCB redesign and layout modifications are required. The exception is the PH1090-350L, which uses chassis mount and is not suitable for direct PCB substitution.

Q: Do all substitute parts meet current regulatory compliance requirements?

A: All substitute parts listed maintain ROHS3 compliance and REACH Unaffected status. The BFP 740F E6327 compliance status is not fully specified. Substitution with active parts ensures alignment with current regulatory standards.

Q: Which substitute part offers the closest electrical match to the BFP 740F E6327?

A: The 2SC5488A-TL-H provides the closest match in terms of RF performance characteristics, operating at 7GHz with 12dB gain and 100mW power dissipation. However, this remains significantly lower in frequency than the original 42GHz specification.

Q: Can the MMBTH10-7-F or MMBTH10LT3G be used in place of the BFP 740F E6327?

A: These parts are suitable only for applications operating at 650MHz or below. They are not suitable for RF circuits requiring 42GHz or even multi-GHz performance. Substitution is limited to low-frequency RF and general-purpose switching applications.

Q: What is the operating temperature range difference between the BFP 740F E6327 and substitute parts?

A: The BFP 740F E6327 operates to 150°C (TJ). The MMBT5179, MMBTH10-7-F, and MMBTH10LT3G extend the lower temperature limit to -55°C, providing wider operating range. The PH1090-350L operates to 200°C (TJ), exceeding the original specification.

Q: Is the PH1090-350L a viable substitute for the BFP 740F E6327?

A: The PH1090-350L is not a direct substitute. It is a high-power chassis mount transistor rated for 350W and 17A, designed for power amplification applications. It is not suitable for RF signal processing circuits requiring the BFP 740F E6327's small-signal, high-frequency characteristics.

Q: What inventory status should be considered when selecting a substitute?

A: All substitute parts maintain active product status with current inventory availability. The BFP 740F E6327 is obsolete with limited remaining stock (814 pcs). For new designs and long-term production, selection of active alternatives ensures supply chain continuity and manufacturing support.