BC846BW-TP Equivalent & Substitute Parts

Part Overview

The BC846BW-TP is an NPN bipolar junction transistor manufactured by Micro Commercial Co, designed for general-purpose switching and amplification applications. This surface mount device operates at 65 V collector-emitter breakdown voltage with a maximum collector current of 100 mA and transition frequency of 100 MHz. The part is packaged in SOT-323 (SC-70) format and is RoHS3 compliant with unlimited moisture sensitivity rating.

Substitute parts are necessary when the primary manufacturer part becomes unavailable, when alternative packaging formats are required, or when sourcing from different manufacturers is preferred for supply chain optimization. The following equivalent and substitute parts maintain electrical compatibility within specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	65	V
Current - Collector (Ic) (Max)	100	mA
Frequency - Transition	100	MHz
DC Current Gain (hFE) (Min) @ Ic, Vce	200 @ 2mA, 5V	—
Vce Saturation (Max) @ Ib, Ic	600mV @ 5mA, 100mA	—
Current - Collector Cutoff (Max)	15	nA
Package / Case	SC-70, SOT-323	—
Mounting Type	Surface Mount	—
Operating Temperature Range	-65 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the BC846BW-TP is determined by electrical parameter compatibility and mechanical packaging equivalence. All substitute parts listed maintain the following critical parameters:

Electrical Compatibility Criteria:

Transistor Type: NPN
Voltage - Collector Emitter Breakdown (Max): 65 V
Current - Collector (Ic) (Max): 100 mA
Frequency - Transition: 100 MHz
DC Current Gain (hFE) (Min) @ Ic, Vce: 200 @ 2mA, 5V (minimum specification)
Package / Case: SC-70, SOT-323

Packaging Compatibility:

Surface Mount technology
SOT-323 footprint equivalence

Substitute parts are categorized as Upgrade or Similar based on parameter variations. Upgrade parts feature improved specifications (lower Vce saturation voltage, higher power dissipation capability). Similar parts maintain equivalent electrical performance with variations in manufacturing source, packaging format, or minor parameter differences within acceptable operating ranges.

Parameter Comparison

Part Number	Manufacturer	Ic (Max)	Vce Breakdown (Max)	hFE (Min)	Vce Sat (Max)	Icbo (Max)	Power (Max)	Freq - Transition	Temp Range	Packaging
BC846BW-TP	Micro Commercial Co	100 mA	65 V	200 @ 2mA, 5V	600mV @ 5mA, 100mA	15 nA	—	100 MHz	-65 to 150°C	Tape & Reel
BC846BW,115	Nexperia USA Inc.	100 mA	65 V	200 @ 2mA, 5V	400mV @ 5mA, 100mA	15 nA	200 mW	100 MHz	-55 to 150°C	Cut Tape & Digi-Reel
BC846BW,135	Nexperia USA Inc.	100 mA	65 V	200 @ 2mA, 5V	400mV @ 5mA, 100mA	15 nA	200 mW	100 MHz	-55 to 150°C	Cut Tape & Digi-Reel
BC846AW RFG	Taiwan Semiconductor Corporation	100 mA	65 V	110 @ 2mA, 5V	600mV @ 5mA, 100mA	100 nA	200 mW	100 MHz	-55 to 150°C	Tape & Reel
BC846BW RFG	Taiwan Semiconductor Corporation	100 mA	65 V	200 @ 2mA, 5V	600mV @ 5mA, 100mA	100 nA	200 mW	100 MHz	-55 to 150°C	Tape & Reel
BC846BWT1G	onsemi	100 mA	65 V	200 @ 2mA, 5V	600mV @ 5mA, 100mA	15 nA	150 mW	100 MHz	-55 to 150°C	Cut Tape & Digi-Reel
BC846CW RFG	Taiwan Semiconductor Corporation	100 mA	65 V	420 @ 2mA, 5V	600mV @ 5mA, 100mA	100 nA	200 mW	100 MHz	-55 to 150°C	Tape & Reel

Engineering Selection Recommendations

Upgrade Substitutes (Nexperia USA Inc.):

BC846BW,115 and BC846BW,135 are direct upgrades from Nexperia USA Inc. Both parts feature improved Vce saturation voltage (400mV versus 600mV), resulting in lower power dissipation during saturation. These parts are supplied in Cut Tape and Digi-Reel packaging formats. Both maintain RoHS3 compliance and unlimited moisture sensitivity rating. The primary distinction between these two part numbers relates to packaging reel specifications; electrical performance is identical.

Direct Equivalents (Taiwan Semiconductor Corporation):

BC846BW RFG from Taiwan Semiconductor Corporation provides electrical equivalence with identical DC current gain specification (200 @ 2mA, 5V). This part maintains the same Vce saturation voltage as the original BC846BW-TP and is supplied in Tape & Reel packaging. Operating temperature range extends to -55°C minimum.

Alternative Specifications (onsemi):

BC846BWT1G from onsemi maintains full electrical compatibility with identical DC current gain and Vce saturation characteristics. This part is supplied in Cut Tape and Digi-Reel packaging with maximum power dissipation of 150 mW. All compliance certifications (RoHS3, REACH Unaffected) are maintained.

Gain-Variant Alternatives (Taiwan Semiconductor Corporation):

BC846AW RFG and BC846CW RFG represent gain-variant alternatives with different DC current gain specifications. BC846AW RFG features minimum hFE of 110 @ 2mA, 5V (lower gain). BC846CW RFG features minimum hFE of 420 @ 2mA, 5V (higher gain). These parts are suitable for applications where specific gain characteristics are required. Both are supplied in Tape & Reel packaging from Taiwan Semiconductor Corporation.

All substitute parts maintain RoHS3 compliance, REACH Unaffected status, and unlimited moisture sensitivity rating (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can BC846BW,115 and BC846BW,135 be used interchangeably with BC846BW-TP?

A: Yes. Both Nexperia parts maintain identical electrical specifications for collector current, breakdown voltage, transition frequency, and DC current gain. The improved Vce saturation voltage (400mV versus 600mV) represents a performance enhancement. Packaging format differs (Cut Tape & Digi-Reel versus Tape & Reel), but SOT-323 footprint compatibility is maintained.

Q: What is the difference between BC846BW RFG and BC846AW RFG?

A: The primary difference is DC current gain specification. BC846BW RFG maintains minimum hFE of 200 @ 2mA, 5V, matching the original BC846BW-TP. BC846AW RFG features lower minimum hFE of 110 @ 2mA, 5V. Both are manufactured by Taiwan Semiconductor Corporation and share identical voltage, current, and frequency ratings. Selection depends on application gain requirements.

Q: Is BC846CW RFG suitable as a substitute for BC846BW-TP?

A: BC846CW RFG is electrically compatible for voltage, current, and frequency parameters. However, this part features significantly higher DC current gain (420 @ 2mA, 5V versus 200 @ 2mA, 5V). This higher gain characteristic may affect circuit behavior in gain-sensitive applications. Verification of circuit performance is necessary when substituting with higher-gain variants.

Q: What are the packaging differences among substitute parts?

A: BC846BW-TP, BC846AW RFG, BC846BW RFG, and BC846CW RFG are supplied in Tape & Reel (TR) packaging. BC846BW,115, BC846BW,135, and BC846BWT1G are supplied in Cut Tape (CT) and Digi-Reel packaging. All parts use identical SOT-323 (SC-70) footprint for surface mount assembly. Packaging format selection depends on production equipment and volume requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance and REACH Unaffected status, matching the original BC846BW-TP certification level.

Q: What is the operating temperature range difference between BC846BW-TP and substitute parts?

A: BC846BW-TP operates from -65°C to 150°C. Nexperia parts (BC846BW,115 and BC846BW,135) operate from -55°C to 150°C. Taiwan Semiconductor Corporation and onsemi parts operate from -55°C to 150°C. Applications requiring operation below -55°C must use the original BC846BW-TP.

Q: Can BC846BWT1G from onsemi be used in high-power applications?

A: BC846BWT1G features maximum power dissipation of 150 mW, which is lower than the 200 mW rating of Nexperia upgrade parts. For applications requiring sustained power dissipation above 150 mW, BC846BW,115 or BC846BW,135 are more suitable.

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