AT-32032-TR2G Equivalent & Substitute Parts Reference

Part Overview

The AT-32032-TR2G is an RF transistor NPN manufactured by Broadcom Limited, rated for 5.5V collector-emitter breakdown voltage with 40mA maximum collector current and 200mW power dissipation in SC-70-3 surface mount packaging. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and production requirements. Substitute parts must maintain compatibility across electrical performance parameters, mechanical packaging constraints, and thermal operating conditions.

Key Parameters

Parameter	AT-32032-TR2G	Unit
Transistor Type	NPN	-
Voltage - Collector Emitter Breakdown (Max)	5.5V	V
Current - Collector (Ic) (Max)	40mA	mA
Power - Max	200mW	mW
Noise Figure (Typ @ f)	1dB ~ 1.3dB @ 900MHz	dB
Gain	13.5dB ~ 15dB	dB
DC Current Gain (hFE) (Min)	70 @ 5mA, 2.7V	-
Operating Temperature (TJ)	150°C	°C
Mounting Type	Surface Mount	-
Package / Case	SC-70, SOT-323	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-
Product Status	Obsolete	-

Substitute Part Grouping Explanation

Substitution eligibility for the AT-32032-TR2G is determined by the following critical parameters:

Primary Compatibility Criteria:

Transistor Type: NPN configuration required
Voltage Rating: Collector-emitter breakdown voltage must equal or exceed 5.5V
Current Capacity: Maximum collector current must accommodate or exceed 40mA
Power Dissipation: Maximum power rating must support or exceed 200mW
Mounting Type: Surface mount configuration required
Package Compatibility: SC-70 or SOT-323 package footprint preferred for direct PCB substitution
Operating Temperature: Minimum junction temperature rating of 150°C required

Secondary Performance Parameters:

Noise Figure performance at RF frequencies (900MHz and above)
Gain characteristics within specified range
DC current gain (hFE) at specified bias conditions

Substitute parts are grouped into two categories: Direct Substitutes (matching package and voltage class) and Functional Equivalents (meeting electrical performance within allowable parameter ranges despite package or voltage variations).

Parameter Comparison

Parameter	AT-32032-TR2G	BFU660F,115	BFR193WH6327XTSA1	2SC4774T106S	2SC2714-O(TE85L,F)	2SC4726TLP	Unit
Transistor Type	NPN	NPN	NPN	NPN	NPN	NPN	-
Voltage - Collector Emitter Breakdown (Max)	5.5V	5.5V	12V	6V	30V	11V	V
Current - Collector (Ic) (Max)	40mA	60mA	80mA	50mA	20mA	50mA	mA
Power - Max	200mW	225mW	580mW	200mW	100mW	150mW	mW
Noise Figure (Typ @ f)	1dB ~ 1.3dB @ 900MHz	0.6dB ~ 1.2dB @ 1.5GHz ~ 5.8GHz	1dB ~ 1.6dB @ 900MHz ~ 1.8GHz	Not Specified	2.5dB @ 100MHz	3.5dB @ 500MHz	dB
Gain	13.5dB ~ 15dB	12dB ~ 21dB	10.5dB ~ 16dB	Not Specified	23dB	Not Specified	dB
DC Current Gain (hFE) (Min)	70 @ 5mA, 2.7V	90 @ 10mA, 2V	70 @ 30mA, 8V	180 @ 5mA, 5V	70 @ 1mA, 6V	56 @ 5mA, 10V	-
Operating Temperature (TJ)	150°C	150°C	150°C	150°C	125°C	150°C	°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	-
Package / Case	SC-70, SOT-323	SOT-343F	SC-70, SOT-323	SC-70, SOT-323	TO-236-3, SC-59, SOT-23-3	SC-75, SOT-416	-
Product Status	Obsolete	Active	Active	Not For New Designs	Active	Active	-
RoHS Status	Not Specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	-

Engineering Selection Recommendations

BFU660F,115 (NXP USA Inc.) - Primary Substitute

BFU660F,115 is the recommended primary substitute for AT-32032-TR2G applications. This part maintains identical 5.5V collector-emitter breakdown voltage rating and exceeds current capacity (60mA vs. 40mA) and power dissipation (225mW vs. 200mW). Noise figure performance (0.6dB ~ 1.2dB @ 1.5GHz ~ 5.8GHz) is superior to the original specification. The part is Active status with ROHS3 compliance and MSL-1 rating. Package footprint differs (SOT-343F vs. SC-70), requiring PCB layout modification. Gain range (12dB ~ 21dB) encompasses the original specification.

BFR193WH6327XTSA1 (Infineon Technologies) - Secondary Substitute

BFR193WH6327XTSA1 provides functional equivalence with elevated voltage rating (12V vs. 5.5V), increased current capacity (80mA vs. 40mA), and enhanced power dissipation (580mW vs. 200mW). Package compatibility is maintained (SC-70, SOT-323). Noise figure (1dB ~ 1.6dB @ 900MHz ~ 1.8GHz) and gain (10.5dB ~ 16dB) are within acceptable ranges. Active product status with ROHS3 compliance. Suitable for applications where higher voltage headroom is beneficial.

2SC4774T106S (Rohm Semiconductor) - Package-Compatible Substitute

2SC4774T106S maintains SC-70 package compatibility and 6V voltage rating (exceeds 5.5V requirement). Current capacity (50mA) and power dissipation (200mW) match or exceed original specifications. Product status is Not For New Designs; use only for legacy system support. ROHS3 compliant with MSL-1 rating. DC current gain (180 @ 5mA, 5V) is elevated compared to original.

2SC2714-O(TE85L,F) (Toshiba Semiconductor) - Lower Power Alternative

2SC2714-O(TE85L,F) is suitable only for applications with reduced power requirements. Maximum power dissipation (100mW) is 50% of original specification. Voltage rating (30V) provides significant margin. Current capacity (20mA) is insufficient for full-load operation. Operating temperature maximum (125°C) is 25°C below original specification. Active product status with RoHS compliance. Package differs (TO-236-3, SC-59, SOT-23-3).

2SC4726TLP (Rohm Semiconductor) - Higher Frequency Alternative

2SC4726TLP offers 3.2GHz transition frequency with 11V voltage rating and 50mA current capacity. Power dissipation (150mW) is below original specification. Gain specification not provided. Package differs (SC-75, SOT-416). Active product status with ROHS3 compliance. Suitable for applications requiring higher frequency performance with reduced power budget.

Frequently Asked Questions (FAQ)

Q: Can BFU660F,115 be used as a direct drop-in replacement for AT-32032-TR2G?

A: BFU660F,115 is electrically compatible but requires PCB layout modification. The part maintains 5.5V voltage rating and exceeds current and power specifications. However, package footprint differs (SOT-343F vs. SC-70), necessitating trace routing and pad layout changes. Electrical performance is superior, making it suitable for new PCB designs.

Q: What is the primary reason AT-32032-TR2G requires substitution?

A: AT-32032-TR2G is classified as obsolete by Broadcom Limited. Continued production and supply cannot be guaranteed. Substitute parts with Active product status ensure long-term availability and supply chain reliability.

Q: Which substitute part best matches the original AT-32032-TR2G specifications?

A: BFR193WH6327XTSA1 provides the closest electrical match with identical package compatibility (SC-70, SOT-323), comparable noise figure and gain characteristics, and Active product status. The 12V voltage rating provides additional design margin while maintaining all current and power requirements.

Q: Are all substitute parts RoHS compliant?

A: Five of six substitute parts listed are ROHS3 compliant. 2SC2714-O(TE85L,F) is RoHS Compliant (earlier standard). All parts meet REACH requirements and carry EAR99 export classification.

Q: What is the impact of package differences on substitution?

A: Package differences require PCB redesign. BFU660F,115 uses SOT-343F (4-pin) versus SC-70 (3-pin). 2SC2714-O(TE85L,F) uses TO-236-3/SOT-23-3. 2SC4726TLP uses SC-75/SOT-416. Only BFR193WH6327XTSA1 and 2SC4774T106S maintain SC-70/SOT-323 compatibility for potential direct substitution with minimal layout modification.

Q: Can 2SC2714-O(TE85L,F) be used in high-power RF applications?

A: No. Maximum power dissipation (100mW) is 50% of the original specification (200mW). This part is suitable only for low-power applications. Operating temperature maximum (125°C) is also reduced. Use only where power budget permits.

Q: What is the significance of the "Not For New Designs" status of 2SC4774T106S?

A: This designation indicates the manufacturer does not recommend this part for new product development. While functionally compatible, long-term availability cannot be assured. Use only for legacy system maintenance and repair. For new designs, select BFU660F,115 or BFR193WH6327XTSA1.

Q: How do noise figure specifications compare across substitute parts?

A: BFU660F,115 provides the lowest noise figure (0.6dB ~ 1.2dB @ 1.5GHz ~ 5.8GHz), superior to the original (1dB ~ 1.3dB @ 900MHz). BFR193WH6327XTSA1 is comparable (1dB ~ 1.6dB @ 900MHz ~ 1.8GHz). 2SC2714-O(TE85L,F) and 2SC4726TLP show elevated noise figures (2.5dB and 3.5dB respectively), suitable only for applications with relaxed noise requirements.

Q: What is the MSL rating significance for all listed parts?

A: All parts carry MSL-1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Parts can be stored indefinitely without desiccant packaging or baking requirements prior to reflow soldering.

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