BC847BLP4-7 Equivalent & Substitute Parts

Part Overview

The BC847BLP4-7 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 BC847BLP4-7 is classified as obsolete, necessitating identification of active equivalent and substitute parts for new designs and ongoing production requirements. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with modified parameters suitable for the same application class.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	45	V
Current - Collector (Ic) (Max)	100	mA
Power - Max	250	mW
Frequency - Transition	100	MHz
Vce Saturation (Max) @ Ib, Ic	600mV @ 5mA, 100mA	—
DC Current Gain (hFE) (Min) @ Ic, Vce	200 @ 2mA, 5V	—
Current - Collector Cutoff (Max)	15	nA
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	3-XFDFN	—
Supplier Device Package	X2-DFN1006-3	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the BC847BLP4-7 is determined by electrical parameter compatibility and mechanical package considerations. The primary substitution criteria are:

Electrical Parameters:

Transistor type (NPN)
Collector-emitter breakdown voltage (minimum 45 V)
Maximum collector current (100 mA or greater)
Maximum power dissipation (250 mW or greater)
Transition frequency (100 MHz or greater)
Operating temperature range (minimum -55°C to 150°C)

Mechanical Parameters:

Surface mount mounting type
Package compatibility or functional equivalence

Substitute parts are grouped into two categories:

Direct Equivalents (Diodes Incorporated BC847 Series): Parts BC847BLP-7 and BC847BLP4-7B maintain identical electrical specifications and are manufactured by the same supplier. These parts differ only in packaging format (tape & reel versus individual packaging) or minor package variant designations. Both are active products suitable for direct replacement.

Parametric Equivalents (Nexperia BC847 Series): Parts BC847AM,315, BC847AMB,315, BC847BM,315, BC847CM,315, and BC847CMB,315 are manufactured by Nexperia USA Inc. and maintain the same core electrical specifications (45 V, 100 mA, 250 mW, 100 MHz). These parts carry automotive-grade qualifications (AEC-Q101) and are available in alternative package formats (SOT-883 or DFN1006B-3). Differences in DC current gain (hFE) and saturation voltage characteristics are within acceptable ranges for general-purpose switching applications.

Higher-Performance Substitutes (Nexperia 2PC4617 Series): Parts 2PC4617QM,315 and 2PC4617RM,315 provide enhanced specifications including 50 V breakdown voltage, 430 mW power dissipation, and automotive AEC-Q100 qualification. These parts are suitable for applications requiring higher voltage margins or improved thermal performance.

Higher-Current Substitute (Nexperia PBSS2540M,315): This part provides 500 mA collector current and 450 MHz transition frequency, suitable for applications requiring higher current handling or faster switching speeds, while maintaining 40 V breakdown voltage and automotive qualification.

Parameter Comparison

Part Number	Manufacturer	Product Status	Vce(BR) Max (V)	Ic Max (mA)	Power Max (mW)	fT (MHz)	hFE Min @ Ic, Vce	Package	Automotive Grade
BC847BLP4-7	Diodes Inc.	Obsolete	45	100	250	100	200 @ 2mA, 5V	X2-DFN1006-3	No
BC847BLP-7	Diodes Inc.	Active	45	100	250	100	200 @ 2mA, 5V	X1-DFN1006-3	No
BC847BLP4-7B	Diodes Inc.	Active	45	100	250	100	200 @ 2mA, 5V	X2-DFN1006-3	No
BC847AM,315	Nexperia USA Inc.	Active	45	100	250	100	110 @ 2mA, 5V	SOT-883	Yes (AEC-Q101)
BC847AMB,315	Nexperia USA Inc.	Active	45	100	250	100	110 @ 2mA, 5V	DFN1006B-3	Yes (AEC-Q101)
BC847BM,315	Nexperia USA Inc.	Active	45	100	250	100	200 @ 2mA, 5V	SOT-883	Yes (AEC-Q101)
BC847CM,315	Nexperia USA Inc.	Active	45	100	250	100	420 @ 2mA, 5V	SOT-883	Yes (AEC-Q101)
BC847CMB,315	Nexperia USA Inc.	Active	45	100	250	100	420 @ 2mA, 5V	DFN1006B-3	Yes (AEC-Q101)
2PC4617QM,315	Nexperia USA Inc.	Active	50	100	430	100	120 @ 1mA, 6V	SOT-883	Yes (AEC-Q100)
2PC4617RM,315	Nexperia USA Inc.	Active	50	100	430	100	180 @ 1mA, 6V	SOT-883	Yes (AEC-Q100)
PBSS2540M,315	Nexperia USA Inc.	Active	40	500	430	450	150 @ 100mA, 2V	SOT-883	Yes (AEC-Q100)

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

BC847BLP-7 and BC847BLP4-7B are the primary recommended substitutes. Both are active products from Diodes Incorporated with identical electrical parameters to the obsolete BC847BLP4-7. BC847BLP4-7B maintains the same X2-DFN1006-3 package format, providing the most direct mechanical compatibility. BC847BLP-7 uses the X1-DFN1006-3 package variant and is available in higher inventory quantities (18,484 pieces).

For Automotive Applications:

BC847BM,315 and BC847CMB,315 are recommended for designs requiring automotive-grade qualification. Both parts carry AEC-Q101 certification and maintain the 45 V, 100 mA, 250 mW specifications. BC847CMB,315 offers higher DC current gain (420 minimum), while BC847BM,315 matches the original hFE specification (200 minimum). The DFN1006B-3 package provides mechanical compatibility with the original X2-DFN1006-3 footprint.

For Enhanced Voltage Margin:

2PC4617QM,315 and 2PC4617RM,315 provide 50 V breakdown voltage and 430 mW power dissipation with AEC-Q100 automotive qualification. These parts are suitable for applications requiring higher voltage headroom. 2PC4617RM,315 offers higher DC current gain (180 minimum) compared to 2PC4617QM,315 (120 minimum).

For Higher Current Applications:

PBSS2540M,315 is suitable for applications requiring 500 mA collector current and 450 MHz transition frequency. This part maintains 40 V breakdown voltage and includes AEC-Q100 automotive qualification. Selection of this part requires confirmation that the application can operate within the 40 V voltage specification.

Compliance Considerations:

All recommended substitute parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Moisture sensitivity level remains 1 (unlimited) across all alternatives.

Frequently Asked Questions (FAQ)

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

A: Yes. BC847BLP-7 is electrically identical to BC847BLP4-7, with the same 45 V breakdown voltage, 100 mA collector current, 250 mW power dissipation, and 100 MHz transition frequency. The primary difference is the package variant designation (X1-DFN1006-3 versus X2-DFN1006-3). Both use the same 3-pin DFN footprint and are compatible with existing PCB layouts. BC847BLP-7 is an active product with higher inventory availability.

Q: What is the difference between BC847BLP4-7B and BC847BLP-7?

A: BC847BLP4-7B maintains the X2-DFN1006-3 package designation matching the original BC847BLP4-7, while BC847BLP-7 uses the X1-DFN1006-3 variant. Both are electrically identical and use the same 3-pin surface mount DFN footprint. The package designation difference reflects minor manufacturing or supplier variations. Both are active Diodes Incorporated products.

Q: Are Nexperia BC847 parts (BC847AM, BC847BM, BC847CM series) compatible with the original BC847BLP4-7?

A: Nexperia BC847 parts are electrically compatible for general-purpose switching applications. All maintain the same 45 V breakdown voltage, 100 mA collector current, 250 mW power dissipation, and 100 MHz transition frequency. Differences exist in DC current gain specifications and package formats. BC847AM,315 and BC847AMB,315 feature lower hFE (110 minimum), while BC847BM,315 and BC847CM,315 offer higher hFE values (200 and 420 minimum, respectively). Nexperia parts carry automotive-grade AEC-Q101 certification. Package options include SOT-883 and DFN1006B-3 formats.

Q: Can I use 2PC4617QM,315 or 2PC4617RM,315 as substitutes?

A: Yes, with design verification. These Nexperia parts provide enhanced specifications: 50 V breakdown voltage (versus 45 V), 430 mW power dissipation (versus 250 mW), and AEC-Q100 automotive qualification. The higher voltage rating provides additional design margin. Differences include lower DC current gain (120-180 minimum versus 200 minimum) and different saturation voltage characteristics. These parts are suitable for applications where higher voltage headroom is beneficial. Package format is SOT-883.

Q: What is the difference between SOT-883 and DFN1006B-3 packages?

A: SOT-883 and DFN1006B-3 are both 3-pin surface mount packages but have different physical dimensions and land patterns. SOT-883 (also designated SC-101) is a smaller outline package, while DFN1006B-3 is a flip-chip DFN format. PCB layout compatibility depends on the specific footprint design. Verify that the selected substitute part's package is compatible with the existing PCB layout before implementation.

Q: Is PBSS2540M,315 suitable as a substitute?

A: PBSS2540M,315 is suitable only for applications where higher collector current (500 mA versus 100 mA) and faster switching (450 MHz versus 100 MHz) are required or beneficial. This part has a lower breakdown voltage (40 V versus 45 V), which may not be acceptable for all applications. Confirm that the 40 V specification meets the application requirements before selecting this part. PBSS2540M,315 includes AEC-Q100 automotive qualification.

Q: Do all substitute parts have the same operating temperature range?

A: The original BC847BLP4-7 specifies -55°C to 150°C operating temperature. Nexperia substitute parts specify 150°C maximum junction temperature. For applications requiring the full -55°C to 150°C range, confirm that the selected substitute part's datasheet explicitly supports this temperature specification.

Q: Are there any compliance or certification differences between substitutes?

A: The original BC847BLP4-7 is not automotive-grade. Nexperia substitute parts carry automotive-grade qualifications: BC847 series parts are AEC-Q101 certified, while 2PC4617 and PBSS2540M parts are AEC-Q100 certified. All parts are ROHS3 compliant, REACH unaffected, and classified as EAR99. Moisture sensitivity level is 1 (unlimited) for all parts.

Q: Which substitute offers the best inventory availability?

A: 2PC4617QM,315 has the highest inventory (680,100 pieces), followed by BC847AM,315 (29,915 pieces) and BC847BLP-7 (18,484 pieces). For immediate availability of direct equivalents, BC847BLP-7 is recommended.

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