2SC3931GCL Equivalent & Substitute Parts

Part Overview

The 2SC3931GCL is an RF transistor NPN manufactured by Panasonic Electronic Components, designed for RF applications operating at 650MHz with a maximum collector-emitter voltage of 20V and power dissipation of 150mW. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The device is packaged in SMini3-F2 surface mount configuration with SC-85 case designation.

Substiute Parts

2SC3931GCL

Panasonic Electronic ComponentsIn Stock: 11062SC3931GCL Datasheet

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BFP193WH6327XTSA1

Infineon TechnologiesIn Stock: 54119BFP193WH6327XTSA1 Datasheet

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BFP843FH6327XTSA1

Infineon TechnologiesIn Stock: 1375BFP843FH6327XTSA1 Datasheet

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BFR360L3E6765XTMA1

Infineon TechnologiesIn Stock: 14178BFR360L3E6765XTMA1 Datasheet

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BFS17NQTA

Diodes IncorporatedIn Stock: 24386BFS17NQTA Datasheet

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MCH4020-TL-H

onsemiIn Stock: 2482MCH4020-TL-H Datasheet

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MMBTH10-7-F

Diodes IncorporatedIn Stock: 10612MMBTH10-7-F Datasheet

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MRF10031

MACOM Technology SolutionsIn Stock: 1490MRF10031 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SC3931GCL is determined by the following critical parameters:

Primary Substitution Criteria:

• Transistor Type: NPN (required match)
• Voltage - Collector Emitter Breakdown (Max): Must equal or exceed 20V
• Frequency - Transition: Must equal or exceed 650MHz
• Power - Max: Must equal or exceed 150mW
• Current - Collector (Ic) (Max): Must equal or exceed 15mA
• Mounting Type: Surface Mount (required match)
• Operating Temperature: Must support 150°C (TJ)

Secondary Compatibility Factors:

• DC Current Gain (hFE): Minimum 65 @ specified conditions
• Noise Figure and Gain characteristics for RF performance
• Moisture Sensitivity Level: MSL 1 (Unlimited) preferred
• Product Status: Active status preferred for long-term availability

The substitute parts listed below meet the primary substitution criteria with varying degrees of parameter overlap. Parts are grouped by their suitability for direct replacement based on electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

MMBTH10-7-F (Diodes Incorporated)

This part provides the closest electrical match to the 2SC3931GCL. It maintains the same 650MHz transition frequency and exceeds the voltage rating (25V vs. 20V). The part is active status with ROHS3 compliance and MSL 1 rating. Power dissipation (300mW) and collector current (50mA) both exceed the original specification, providing design margin. This part is recommended as the primary substitute for direct replacement in existing designs.

BFS17NQTA (Diodes Incorporated)

This part operates at 3.2GHz transition frequency, exceeding the 650MHz requirement. Voltage rating of 11V is below the original 20V specification and requires circuit evaluation. Power dissipation (310mW) and collector current (50mA) exceed requirements. Active status with ROHS3 compliance and MSL 1 rating. Suitable for applications where lower voltage operation is acceptable.

BFP193WH6327XTSA1 (Infineon Technologies)

This part operates at 8GHz transition frequency with 12V voltage rating. Power dissipation (580mW) and collector current (80mA) significantly exceed the original specification. Active status with ROHS3 compliance and REACH unaffected designation. Suitable for higher frequency RF applications requiring enhanced performance margins.

BFR360L3E6765XTMA1 (Infineon Technologies)

This part operates at 14GHz transition frequency with 9V voltage rating. The voltage specification is below the original 20V requirement. Power dissipation (210mW) and collector current (35mA) exceed the original specification. Active status with ROHS3 compliance and REACH unaffected designation. Suitable for high-frequency applications where voltage derating is acceptable.

MCH4020-TL-H (onsemi)

This part operates at 16GHz transition frequency with 8V voltage rating. The voltage specification is significantly below the original 20V requirement. Power dissipation (400mW) and collector current (150mA) substantially exceed the original specification. Active status with ROHS3 compliance and REACH unaffected designation. Suitable for ultra-high-frequency applications requiring substantial performance headroom.

MRF10031 (MACOM Technology Solutions)

This part is a chassis mount device with 55V voltage rating and 30W power dissipation. Mounting type differs from the surface mount requirement of the original part. This part is not recommended as a direct substitute due to incompatible mounting configuration and package type.

BFP843FH6327XTSA1 (Infineon Technologies)

This part has a 2.25V voltage rating, which is significantly below the original 20V specification. Mounting type is surface mount with TSFP-4-1 package. This part is not recommended as a substitute due to insufficient voltage rating for the original application.

Frequently Asked Questions (FAQ)

Q: Can MMBTH10-7-F directly replace 2SC3931GCL in existing PCB layouts?

A: MMBTH10-7-F uses SOT-23-3 package while 2SC3931GCL uses SMini3-F2 (SC-85) package. Physical footprints differ and require PCB layout modification. Electrical parameters are compatible for direct functional substitution.

Q: What is the primary reason for substituting the 2SC3931GCL?

A: The 2SC3931GCL is classified as obsolete. Active substitute parts ensure long-term component availability and production continuity.

Q: Which substitute part maintains the closest frequency specification to the original?

A: MMBTH10-7-F maintains the same 650MHz transition frequency as the 2SC3931GCL, making it the most frequency-compatible substitute.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed (MMBTH10-7-F, BFS17NQTA, BFP193WH6327XTSA1, BFR360L3E6765XTMA1, MCH4020-TL-H) are ROHS3 compliant. MRF10031 is also ROHS3 compliant.

Q: What voltage derating considerations apply when using BFR360L3E6765XTMA1?

A: BFR360L3E6765XTMA1 has a maximum collector-emitter voltage of 9V, compared to the original 20V specification. Circuit designs must accommodate this reduced voltage rating through appropriate bias network modifications.

Q: Can BFP193WH6327XTSA1 be used in low-frequency applications?

A: BFP193WH6327XTSA1 operates at 8GHz transition frequency, which exceeds the 650MHz requirement of the original part. It functions in lower frequency applications but represents over-specification for 650MHz designs.

Q: What is the moisture sensitivity level for all substitute parts?

A: All substitute parts maintain MSL 1 (Unlimited) rating, matching the original 2SC3931GCL specification.

Q: Is MRF10031 suitable as a substitute?

A: MRF10031 is not recommended as a direct substitute. It uses chassis mount packaging (332A-03) instead of surface mount configuration, and its 55V rating and 30W power dissipation represent a different device class intended for higher power applications.

Q: Which substitute parts are recommended for new designs?

A: MMBTH10-7-F, BFS17NQTA, BFP193WH6327XTSA1, BFR360L3E6765XTMA1, and MCH4020-TL-H are all active status parts suitable for new designs. Selection depends on specific frequency and voltage requirements of the application.

Q: Do substitute parts require circuit redesign?

A: MMBTH10-7-F requires only PCB layout modification due to different package type. Higher frequency substitutes (BFS17NQTA, BFP193WH6327XTSA1, BFR360L3E6765XTMA1, MCH4020-TL-H) may require bias network optimization to achieve equivalent RF performance characteristics.