BC847BLP4-7B Equivalent & Substitute Parts

Part Overview

The BC847BLP4-7B is an NPN bipolar junction transistor manufactured by Diodes Incorporated, designed for general-purpose switching and amplification applications. This device features a 45 V collector-emitter breakdown voltage, 100 mA maximum collector current, and 250 mW power dissipation in a 3-pin surface mount X2-DFN1006-3 package. The part is classified as Active product status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity while maintaining electrical and mechanical compatibility within specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Collector-Emitter Breakdown Voltage (Max)	45	V
Collector Current (Max)	100	mA
Power Dissipation (Max)	250	mW
Transition Frequency	100	MHz
DC Current Gain (hFE Min)	200	@ 2mA, 5V
Vce Saturation (Max)	600	mV @ 5mA, 100mA
Collector Cutoff Current (Max)	15	nA
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	3-XFDFN	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the BC847BLP4-7B are classified based on electrical parameter compatibility and mechanical package considerations. The primary substitution criteria are:

Electrical Parameters:

Collector-Emitter Breakdown Voltage: 45 V minimum (allows up to 50 V)
Collector Current: 100 mA minimum
Power Dissipation: 250 mW minimum
Transition Frequency: 100 MHz minimum
DC Current Gain (hFE): 110 minimum @ specified conditions
Operating Temperature: 150°C maximum junction temperature

Mechanical Parameters:

Mounting Type: Surface Mount
Package Compatibility: 3-pin DFN or SOT-883 packages

Compliance Requirements:

RoHS3 Compliant
MSL 1 (Unlimited)
Active product status

Substitutes are organized into three categories: direct manufacturer equivalents (same base part number, different package or tape configuration), manufacturer-recommended alternatives (same electrical specifications, different package or manufacturer), and parametric equivalents (similar electrical performance with minor specification variations).

Parameter Comparison

Part Number	Manufacturer	Vce(BR) Max (V)	Ic Max (mA)	Power Max (mW)	fT (MHz)	hFE Min	Package	Grade
BC847BLP4-7B	Diodes Inc.	45	100	250	100	200	X2-DFN1006-3	Commercial
BC847BLP-7	Diodes Inc.	45	100	250	100	200	X1-DFN1006-3	Commercial
BC847AM,315	Nexperia USA Inc.	45	100	250	100	110	SOT-883	Automotive
BC847AMB,315	Nexperia USA Inc.	45	100	250	100	110	DFN1006B-3	Automotive
BC847CM,315	Nexperia USA Inc.	45	100	250	100	420	SOT-883	Automotive
BC847CMB,315	Nexperia USA Inc.	45	100	250	100	420	DFN1006B-3	Automotive
BC847BMB,315	Nexperia USA Inc.	45	100	250	100	200	DFN1006B-3	Automotive
2PC4617QM,315	Nexperia USA Inc.	50	100	430	100	120	SOT-883	Automotive
PBSS2540M,315	Nexperia USA Inc.	40	500	430	450	150	SOT-883	Automotive
PMBT3904M,315	Nexperia USA Inc.	40	200	590	300	100	SOT-883	Automotive

Engineering Selection Recommendations

Direct Equivalents (Recommended for Pin-Compatible Replacement):

BC847BLP-7 is a direct equivalent from Diodes Incorporated with identical electrical specifications. The primary difference is the tape configuration (X1-DFN1006-3 versus X2-DFN1006-3), which does not affect circuit performance. This part is suitable for direct substitution in applications where the original part is unavailable.

Manufacturer-Recommended Alternatives (Nexperia BC847 Series):

BC847AMB,315, BC847AM,315, BC847CM,315, and BC847BMB,315 are manufacturer-recommended alternatives from Nexperia USA Inc. These parts meet or exceed the electrical specifications of the BC847BLP4-7B with the following considerations:

All maintain 45 V Vce(BR) and 100 mA Ic ratings
Automotive-grade qualification (AEC-Q100 or AEC-Q101) provides enhanced reliability for demanding applications
Package options include SOT-883 and DFN1006B-3 formats
DC current gain (hFE) varies across the series (110 to 420), allowing selection based on application requirements
Operating temperature extends to 150°C junction temperature

Parametric Equivalents (Extended Performance):

2PC4617QM,315 offers higher power dissipation (430 mW) and slightly elevated Vce(BR) (50 V) while maintaining 100 mA collector current and 100 MHz transition frequency. This part is suitable for applications requiring improved thermal performance.

PBSS2540M,315 and PMBT3904M,315 are higher-performance alternatives with increased collector current (500 mA and 200 mA respectively) and transition frequency (450 MHz and 300 MHz). These parts are suitable only for applications where the increased current-handling capability and frequency response are required, as they represent a design change rather than a direct substitution.

Compliance and Certification:

All substitute parts maintain RoHS3 compliance and MSL 1 rating. Automotive-grade parts (Nexperia series) carry AEC-Q100 or AEC-Q101 qualification, suitable for automotive and industrial applications requiring enhanced reliability documentation.

Frequently Asked Questions (FAQ)

Q: Can BC847BLP-7 be used as a direct replacement for BC847BLP4-7B?

A: Yes. BC847BLP-7 is a direct electrical equivalent with identical Vce(BR), Ic, power dissipation, and transition frequency specifications. The difference in tape configuration (X1 versus X2) does not affect circuit performance. Both parts are manufactured by Diodes Incorporated and are pin-compatible in the same 3-XFDFN package.

Q: What is the difference between Diodes Incorporated and Nexperia USA Inc. versions of the BC847?

A: Both manufacturers produce BC847 transistors meeting the same base electrical specifications (45 V, 100 mA, 100 MHz). Nexperia versions carry automotive-grade qualification (AEC-Q100 or AEC-Q101) and are rated to 150°C junction temperature. Diodes Incorporated versions are commercial-grade. The choice depends on application requirements and supply chain availability.

Q: Can I substitute BC847CM,315 for BC847BLP4-7B?

A: Yes, with package consideration. BC847CM,315 meets all electrical requirements (45 V, 100 mA, 250 mW, 100 MHz) and offers higher DC current gain (420 versus 200). However, it uses a SOT-883 package instead of the X2-DFN1006-3 package. PCB layout modification is required for package compatibility.

Q: Are PBSS2540M,315 and PMBT3904M,315 suitable substitutes?

A: These parts are not direct substitutes. PBSS2540M,315 handles 500 mA collector current (versus 100 mA) and PMBT3904M,315 handles 200 mA. Both represent design changes rather than equivalent replacements. Use these parts only if your application requires higher current-handling capability.

Q: What does the ",315" suffix in Nexperia part numbers indicate?

A: The ",315" suffix is a Nexperia packaging designation indicating tape and reel configuration. It does not affect electrical performance or compatibility with the base part number.

Q: Can I use automotive-grade BC847 parts in commercial applications?

A: Yes. Automotive-grade parts exceed commercial-grade specifications and are fully compatible with commercial applications. They provide enhanced reliability and temperature stability at no functional disadvantage.

Q: What is the difference between DFN1006B-3 and X2-DFN1006-3 packages?

A: Both are 3-pin surface mount packages with similar footprints and electrical performance. DFN1006B-3 (Nexperia designation) and X2-DFN1006-3 (Diodes Inc. designation) are mechanically and electrically compatible. PCB layout may require minor adjustment due to manufacturer-specific pad dimensions.

Q: Is the BC847BLP4-7B still in active production?

A: Yes. The BC847BLP4-7B is classified as Active product status with 10,926 pieces in stock. All recommended substitutes are also Active status, ensuring long-term availability.

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