PRF957,115 Equivalent & Substitute Parts Reference

Part Overview

The PRF957,115 is an RF transistor manufactured by NXP USA Inc., classified as a bipolar NPN transistor in the SC-70 surface mount package. This component is designed for RF applications operating at frequencies up to 8.5GHz with a maximum collector-emitter breakdown voltage of 10V and power dissipation of 270mW. The part is currently listed as obsolete, making identification of suitable substitute components necessary for ongoing design support and production continuity. Substitute parts must maintain compatibility with the SC-70 package footprint and support equivalent RF performance characteristics within the specified electrical parameters.

Substiute Parts

PRF957,115

NXP USA Inc.In Stock: 1197PRF957,115 Datasheet

Current PartRFQ

2SC4215-Y(TE85L,F)

Toshiba Semiconductor and StorageIn Stock: 26702SC4215-Y(TE85L,F) Datasheet

DirectRFQ

BFP410H6327XTSA1

Infineon TechnologiesIn Stock: 972BFP410H6327XTSA1 Datasheet

MFR RecommendedRFQ

BFS 17P E6433

Infineon TechnologiesIn Stock: 788BFS 17P E6433 Datasheet

MFR RecommendedRFQ

ZVN4206GTA

Diodes IncorporatedIn Stock: 20402ZVN4206GTA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PRF957,115 are evaluated based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

• Transistor Type: NPN bipolar configuration
• Package Compatibility: SC-70 or SOT-323 surface mount package
• Voltage Rating: Collector-emitter breakdown voltage of 10V or higher
• Frequency Performance: Transition frequency of 8.5GHz or higher
• Power Dissipation: Maximum power rating of 270mW or higher
• Current Capability: Collector current (Ic) of 100mA or higher
• Noise Performance: Noise figure suitable for RF applications
• Compliance: ROHS3 compliant, MSL 1 rating

Substitute Categories:

Category 1 - Direct BJT Substitutes (Same Package Family): The 2SC4215-Y(TE85L,F) from Toshiba Semiconductor maintains the SC-70 package format and NPN configuration. While this part operates at lower frequency (550MHz) and lower power (100mW), it remains within the same package family and meets basic BJT substitution criteria for applications not requiring the full 8.5GHz performance envelope.

Category 2 - Higher Performance BJT Substitute: The BFP410H6327XTSA1 from Infineon Technologies provides superior RF performance with 25GHz transition frequency, exceeding the PRF957,115 specifications. However, this part uses the SOT-343 package (PG-SOT343-4-2), which differs from the SC-70 footprint and requires PCB layout modification.

Category 3 - Lower Frequency BJT Substitute: The BFS 17P E6433 from Infineon Technologies operates at 1.4GHz with 15V breakdown voltage rating, suitable for lower frequency RF applications. This part uses the SOT-23-3 package, requiring footprint redesign.

Category 4 - Non-BJT Technology: The ZVN4206GTA from Diodes Incorporated is an N-channel MOSFET, representing a different semiconductor technology. This part is not a direct substitute for BJT applications and is included only for reference as an alternative technology option.

Parameter Comparison

Engineering Selection Recommendations

For Direct Package Compatibility (SC-70 Footprint):

The 2SC4215-Y(TE85L,F) from Toshiba Semiconductor maintains identical SC-70 package dimensions and requires no PCB layout modification. This part is suitable for applications where the 8.5GHz frequency requirement can be relaxed to 550MHz operation. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating, ensuring long-term availability and environmental compliance equivalent to the original PRF957,115.

For Enhanced RF Performance (Higher Frequency):

The BFP410H6327XTSA1 from Infineon Technologies provides 25GHz transition frequency, significantly exceeding the PRF957,115 specification. This part requires PCB redesign due to SOT-343 package format. Selection of this substitute is appropriate when higher frequency performance is required and PCB layout modification is feasible. The part maintains active production status, ROHS3 compliance, and unlimited MSL rating.

For Lower Frequency RF Applications:

The BFS 17P E6433 from Infineon Technologies operates at 1.4GHz with 15V breakdown voltage, suitable for lower frequency RF circuits. This part uses SOT-23-3 package format, requiring footprint redesign. The part is in active production with ROHS3 compliance and unlimited MSL rating.

Compliance and Availability:

All substitute parts listed maintain ROHS3 compliance and MSL 1 (unlimited) ratings, ensuring environmental and moisture handling compatibility with the original PRF957,115. All substitute parts are currently in active production status, providing long-term supply chain stability compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can the 2SC4215-Y(TE85L,F) be used as a direct replacement for the PRF957,115 without PCB modification?

A: Yes. The 2SC4215-Y(TE85L,F) uses the SC-70 package identical to the PRF957,115, allowing direct footprint compatibility without PCB layout changes. However, the 550MHz transition frequency is significantly lower than the 8.5GHz specification of the original part. This substitute is suitable only for applications operating below 550MHz.

Q: What is the primary limitation of using the BFP410H6327XTSA1 as a substitute?

A: The BFP410H6327XTSA1 uses the SOT-343 package format instead of the SC-70 package of the PRF957,115. PCB layout redesign is required to accommodate the different package footprint. Additionally, the 5V maximum collector-emitter breakdown voltage is lower than the 10V rating of the original part, requiring circuit voltage verification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (2SC4215-Y(TE85L,F), BFP410H6327XTSA1, and BFS 17P E6433) are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity ratings, matching the environmental compliance profile of the PRF957,115.

Q: What is the key difference between the PRF957,115 and the BFS 17P E6433?

A: The BFS 17P E6433 operates at 1.4GHz transition frequency compared to 8.5GHz for the PRF957,115. The BFS 17P E6433 also uses SOT-23-3 package format instead of SC-70, requiring PCB redesign. The BFS 17P E6433 is suitable for lower frequency RF applications only.

Q: Why is the ZVN4206GTA listed if it is not a BJT substitute?

A: The ZVN4206GTA is an N-channel MOSFET, representing a different semiconductor technology category. It is included in the reference list as it was identified in the original substitute documentation, but it is not a functional equivalent for BJT applications. Selection of this part requires complete circuit redesign and is not recommended for direct substitution.

Q: What are the inventory levels for substitute parts?

A: The 2SC4215-Y(TE85L,F) has 2568 pieces in stock. The BFP410H6327XTSA1 has 914 pieces in stock. The BFS 17P E6433 has 757 pieces in stock. All parts are listed as new original stock from authorized distributors.

Q: Can the PRF957,115 be replaced with a higher frequency part for future-proofing?

A: The BFP410H6327XTSA1 provides 25GHz capability, exceeding the 8.5GHz requirement. However, this substitution requires PCB layout modification due to package format differences and circuit voltage verification due to the lower 5V breakdown voltage rating. Selection should be based on actual application frequency requirements rather than theoretical future needs.