BFP 720F E6327 Equivalent & Substitute Parts

Part Overview

The BFP 720F E6327 is an RF transistor manufactured by Infineon Technologies, classified as a bipolar NPN junction transistor (BJT) designed for high-frequency applications. This device operates at a transition frequency of 45 GHz with a maximum collector-emitter breakdown voltage of 4.7V and a power dissipation rating of 100mW in a surface mount 4-TSFP package.

The BFP 720F E6327 is designated as obsolete. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this RF transistor topology.

Substiute Parts

BFP 720F E6327

Infineon TechnologiesIn Stock: 1129BFP 720F E6327 Datasheet

Current PartRFQ

2SC4915-Y,LF

Toshiba Semiconductor and StorageIn Stock: 8522SC4915-Y,LF Datasheet

MFR RecommendedRFQ

MRF428

MACOM Technology SolutionsIn Stock: 1498MRF428 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BFP 720F E6327 is determined by alignment of critical electrical and mechanical parameters within the RF transistor category. The primary substitution criteria are:

Electrical Parameters:

• Transistor type (NPN topology)
• Voltage rating compatibility (collector-emitter breakdown voltage)
• Frequency capability (transition frequency)
• Power dissipation rating
• Maximum collector current
• DC current gain characteristics

Mechanical Parameters:

• Mounting type (surface mount or equivalent)
• Package form factor compatibility
• Thermal characteristics

The substitute parts identified for the BFP 720F E6327 are:

1. 2SC4915-Y,LF (Toshiba Semiconductor and Storage) — Active product status; surface mount RF transistor with reduced frequency capability (550 MHz) but compatible power rating and NPN topology
2. MRF428 (MACOM Technology Solutions) — Active product status; chassis mount RF transistor with higher voltage and power ratings; different mounting type and package form factor

Parameter Comparison

Engineering Selection Recommendations

2SC4915-Y,LF Selection Criteria:

The 2SC4915-Y,LF is an active product with RoHS compliance certification. This substitute maintains NPN topology and surface mount configuration. The device operates at 550 MHz transition frequency, which is significantly lower than the BFP 720F E6327 (45 GHz). Power dissipation and maximum collector current ratings are equivalent. This substitute is suitable for applications where frequency requirements do not exceed 550 MHz and where RoHS compliance is mandated.

MRF428 Selection Criteria:

The MRF428 is an active product with ROHS3 compliance certification. This substitute maintains NPN topology but employs chassis mount packaging rather than surface mount configuration. The device operates at significantly higher voltage (55V) and power (150W) ratings compared to the BFP 720F E6327. Maximum collector current is substantially higher (20A versus 25mA). This substitute is suitable for high-power RF applications requiring robust thermal management and elevated voltage operation, with the constraint that circuit board layout and mounting infrastructure must accommodate chassis mount form factor.

Frequently Asked Questions (FAQ)

Q: Can the 2SC4915-Y,LF directly replace the BFP 720F E6327 in existing PCB designs?

A: The 2SC4915-Y,LF uses a different package form factor (SC-75, SOT-416 versus 4-TSFP). PCB layout modifications are required. Additionally, the transition frequency is reduced from 45 GHz to 550 MHz, which may impact circuit performance in high-frequency applications.

Q: What are the primary differences between the BFP 720F E6327 and MRF428?

A: The MRF428 differs in mounting type (chassis mount versus surface mount), voltage rating (55V versus 4.7V), power dissipation (150W versus 100mW), and collector current (20A versus 25mA). The MRF428 is designed for high-power RF applications, whereas the BFP 720F E6327 is optimized for low-power, high-frequency operation.

Q: Are both substitute parts RoHS compliant?

A: The 2SC4915-Y,LF carries RoHS Compliant certification. The MRF428 carries ROHS3 Compliant certification. Both meet current environmental compliance standards.

Q: What is the moisture sensitivity level for these parts?

A: All three devices (BFP 720F E6327, 2SC4915-Y,LF, and MRF428) are rated at MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

Q: Which substitute is appropriate for high-frequency RF applications?

A: The 2SC4915-Y,LF operates at 550 MHz, which is substantially lower than the BFP 720F E6327 (45 GHz). For applications requiring operation above 550 MHz, neither substitute maintains the original frequency capability. The MRF428 does not specify transition frequency and is designed for power amplification rather than high-frequency small-signal operation.

Q: Can the MRF428 be used in surface mount PCB designs?

A: No. The MRF428 is a chassis mount device and requires mechanical mounting infrastructure incompatible with surface mount PCB assembly processes.