BFR93AW,115 Equivalent & Substitute Parts

Part Overview

The BFR93AW,115 is an RF transistor NPN manufactured by NXP USA Inc., designed for RF applications operating at 5GHz with a maximum collector-emitter breakdown voltage of 12V and power dissipation of 300mW. The device is packaged in SC-70 (SOT-323-3) surface mount configuration and is classified as obsolete product status. Due to its obsolete classification, equivalent and substitute parts are necessary for ongoing design support, production continuity, and system upgrades where performance requirements permit alternative specifications.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	12V	V
Frequency - Transition	5GHz	GHz
Noise Figure (Typ @ f)	1.5dB ~ 2.1dB @ 1GHz ~ 2GHz	dB
Power - Max	300mW	mW
DC Current Gain (hFE) (Min) @ Ic, Vce	40 @ 30mA, 5V	—
Current - Collector (Ic) (Max)	35mA	mA
Operating Temperature (Max)	150°C	°C
Mounting Type	Surface Mount	—
Package / Case	SC-70, SOT-323	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the BFR93AW,115 is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Transistor Type: NPN (mandatory match)
Voltage - Collector Emitter Breakdown: minimum 12V (equal or greater)
Frequency - Transition: minimum 5GHz (equal or greater)
Power - Max: minimum 300mW (equal or greater)
Current - Collector (Ic) (Max): minimum 35mA (equal or greater)
Mounting Type: Surface Mount (mandatory match)
Package / Case: SC-70, SOT-323 or compatible surface mount packages

Secondary Compatibility Factors:

Operating Temperature: 150°C maximum junction temperature
RoHS3 Compliance and MSL rating for manufacturing compatibility

Substitute parts are grouped into two categories:

Category A - Direct Package Compatibility (SC-70/SOT-323): Parts maintaining identical or pin-compatible surface mount packages with equal or superior electrical specifications.

Category B - Enhanced Performance Alternatives: Parts with superior frequency response, power handling, or current capability that maintain voltage and thermal compatibility while offering improved RF performance characteristics.

Parameter Comparison

Part Number	Manufacturer	Voltage (Max)	Frequency (GHz)	Power (mW)	Ic (Max) (mA)	Package	Status
BFR93AW,115	NXP USA Inc.	12V	5	300	35	SC-70, SOT-323	Obsolete
BFU530WX	NXP USA Inc.	12V	11	450	40	SC-70, SOT-323	Active
2SC2714-Y(TE85L,F)	Toshiba Semiconductor and Storage	30V	0.55	100	20	TO-236-3, SC-59, SOT-23-3	Active
2SC5226A-4-TL-E	onsemi	10V	7	150	70	SC-70, SOT-323	Active
2SC5226A-5-TL-E	onsemi	10V	7	150	70	SC-70, SOT-323	Active
BFP640FH6327XTSA1	Infineon Technologies	4.5V	40	200	50	4-SMD, Flat Leads	Active
BFP740H6327XTSA1	Infineon Technologies	4.7V	42	160	30	SC-82A, SOT-343	Active
BFR181WH6327XTSA1	Infineon Technologies	12V	8	175	20	SC-70, SOT-323	Active
BFR182WH6327XTSA1	Infineon Technologies	12V	8	250	35	SC-70, SOT-323	Active
BFR740L3RHE6327XTSA1	Infineon Technologies	4.7V	42	160	30	SC-101, SOT-883	Active
BFR93AWH6327XTSA1	Infineon Technologies	12V	6	300	90	SC-70, SOT-323	Active

Engineering Selection Recommendations

Recommended Primary Substitute: BFU530WX (NXP USA Inc.)

The BFU530WX is the optimal substitute for the BFR93AW,115. It maintains identical voltage rating (12V), identical package configuration (SC-70, SOT-323), and exceeds all critical electrical parameters: frequency capability increased from 5GHz to 11GHz, power dissipation increased from 300mW to 450mW, and collector current increased from 35mA to 40mA. The device is active product status with full manufacturing support. RoHS3 compliance and MSL-1 rating ensure manufacturing compatibility. Automotive qualification (AEC-Q101) provides additional reliability assurance.

Recommended Secondary Substitute: BFR93AWH6327XTSA1 (Infineon Technologies)

The BFR93AWH6327XTSA1 provides direct functional equivalence with identical voltage (12V), identical package (SC-70, SOT-323), and identical power rating (300mW). Frequency capability is marginally increased from 5GHz to 6GHz. Collector current capacity is significantly increased to 90mA. Active product status with established supply chain. RoHS3 compliance and MSL-1 rating confirmed.

Alternative Substitute: BFR182WH6327XTSA1 (Infineon Technologies)

The BFR182WH6327XTSA1 maintains 12V voltage rating and SC-70 package compatibility with increased frequency (8GHz) and power handling (250mW). Collector current matches the original specification at 35mA. Suitable for applications requiring enhanced frequency performance within the same thermal and voltage envelope.

Not Recommended for Direct Substitution:

2SC2714-Y(TE85L,F): Frequency capability (550MHz) is insufficient for 5GHz RF applications. Power rating (100mW) and collector current (20mA) are below specification requirements.
2SC5226A-4-TL-E and 2SC5226A-5-TL-E: Voltage rating (10V) is below the 12V requirement. Power rating (150mW) is insufficient.
BFP640FH6327XTSA1: Voltage rating (4.5V) is incompatible with 12V specification. Package configuration (4-SMD, Flat Leads) differs from SC-70.
BFP740H6327XTSA1 and BFR740L3RHE6327XTSA1: Voltage rating (4.7V) is incompatible with 12V specification. Package configurations differ from SC-70.
BFR181WH6327XTSA1: Collector current (20mA) and power rating (175mW) are below specification requirements.

Frequently Asked Questions (FAQ)

Q1: Can the BFU530WX directly replace the BFR93AW,115 without circuit modification?

A: Yes. The BFU530WX maintains identical voltage rating (12V), identical package configuration (SC-70, SOT-323), and identical pinout. All electrical parameters meet or exceed the original specification. No circuit modification is required. The device is pin-compatible and functionally superior.

Q2: What is the primary advantage of BFU530WX over the original BFR93AW,115?

A: The BFU530WX provides superior RF performance with frequency capability increased to 11GHz (versus 5GHz), power dissipation increased to 450mW (versus 300mW), and collector current increased to 40mA (versus 35mA). Active product status ensures long-term availability and manufacturing support.

Q3: Why is the BFR93AWH6327XTSA1 recommended as a secondary substitute?

A: The BFR93AWH6327XTSA1 provides direct functional equivalence with identical voltage (12V), identical package (SC-70, SOT-323), and identical power rating (300mW). It represents a direct replacement option with active product status and established supply chain. The increased collector current capacity (90mA) provides additional design margin.

Q4: Can parts with different package configurations be used as substitutes?

A: Package compatibility depends on PCB layout and design constraints. Parts with different packages (such as SOT-343 or SOT-883) require PCB redesign and are not recommended for direct substitution in existing designs. SC-70 and SOT-323 packages are mechanically and electrically equivalent and can be used interchangeably.

Q5: Are all recommended substitutes RoHS3 compliant?

A: Yes. All recommended substitute parts (BFU530WX, BFR93AWH6327XTSA1, and BFR182WH6327XTSA1) are RoHS3 compliant with MSL-1 rating, ensuring compatibility with modern manufacturing processes and environmental regulations.

Q6: What is the significance of the 12V voltage rating in substitute selection?

A: The 12V collector-emitter breakdown voltage is a critical parameter that determines the maximum operating voltage of the transistor. Substitutes must maintain equal or greater voltage rating to ensure safe operation in the original circuit. Parts with lower voltage ratings (such as 4.5V or 4.7V) are not suitable for 12V applications.

Q7: Why is frequency capability important in RF transistor substitution?

A: Frequency capability (transition frequency) determines the maximum operating frequency of the transistor. The original BFR93AW,115 operates at 5GHz. Substitutes with equal or greater frequency capability (5GHz or higher) maintain or improve RF performance. Substitutes with lower frequency capability are unsuitable for the intended application.

Q8: What does "Active" product status mean for substitute parts?

A: Active product status indicates that the manufacturer actively produces and supports the part. This ensures long-term availability, consistent quality, and ongoing technical support. The original BFR93AW,115 is obsolete, making active substitutes essential for production continuity.

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