DP0150ALP4-7B Equivalent & Substitute Parts

Part Overview

The DP0150ALP4-7B is a PNP bipolar junction transistor manufactured by Diodes Incorporated, designed for surface mount applications in the 3-XFDFN package. This component operates at 50 V collector-emitter breakdown voltage with a maximum collector current of 100 mA and 450 mW power dissipation. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Current - Collector (Ic) (Max)	100	mA
Voltage - Collector Emitter Breakdown (Max)	50	V
Power - Max	450	mW
Frequency - Transition	80	MHz
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	3-XFDFN	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the DP0150ALP4-7B is determined by the following critical parameters:

Electrical Compatibility Requirements:

Transistor type must be PNP
Maximum collector current must be ≥100 mA
Collector-emitter breakdown voltage must be ≥50 V
Transition frequency must be ≥80 MHz
Operating temperature range must encompass -55°C to 150°C
Power dissipation capability must be ≥450 mW

Mechanical Compatibility Requirements:

Mounting type must be Surface Mount
Package must be 3-XFDFN or equivalent footprint
Moisture sensitivity level must be ≤1

Compliance Requirements:

RoHS3 compliance required
REACH unaffected status required

Substitute parts are grouped into two categories based on package configuration: parts maintaining the X2-DFN1006-3 package (direct footprint compatibility) and parts using alternative surface mount packages (DFN1006B-3 or SOT-883) that require board layout evaluation.

Parameter Comparison

Parameter	DP0150ALP4-7B	BC857BLP4-7B	BC856BMBYL	BC857AM,315	BC857AMB,315	BC857BM,315	BC857BMB,315
Manufacturer	Diodes Inc.	Diodes Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Transistor Type	PNP	PNP	PNP	PNP	PNP	PNP	PNP
Ic (Max)	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA
Vce Breakdown (Max)	50 V	45 V	60 V	45 V	45 V	45 V	45 V
Power - Max	450 mW	250 mW	250 mW	150 mW	250 mW	150 mW	150 mW
Frequency - Transition	80 MHz	100 MHz	100 MHz	100 MHz	100 MHz	100 MHz	100 MHz
Operating Temperature (Max)	150°C	150°C	150°C	150°C	150°C	150°C	150°C
Package / Case	3-XFDFN	3-XFDFN	3-XFDFN	SC-101, SOT-883	3-XFDFN	SC-101, SOT-883	3-XFDFN
Supplier Device Package	X2-DFN1006-3	X2-DFN1006-3	DFN1006B-3	SOT-883	DFN1006B-3	SOT-883	DFN1006B-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Automotive Grade	—	—	Yes (AEC-Q101)	Yes (AEC-Q101)	Yes (AEC-Q101)	Yes (AEC-Q101)	Yes (AEC-Q101)

Engineering Selection Recommendations

Direct Package Compatibility (X2-DFN1006-3 / DFN1006B-3):

BC857BLP4-7B is the primary substitute for DP0150ALP4-7B when direct footprint compatibility is required. Both parts maintain the 3-XFDFN package configuration and are manufactured by Diodes Incorporated. BC857BLP4-7B is active in production status, addressing the obsolescence of the original part. The 45 V breakdown voltage specification is lower than the original 50 V rating; however, this remains within acceptable margins for most applications operating below 45 V. The transition frequency of 100 MHz exceeds the original 80 MHz specification. Power dissipation is reduced to 250 mW compared to 450 mW; thermal design review is required for applications approaching maximum power limits.

BC856BMBYL, manufactured by Nexperia USA Inc., provides the highest collector-emitter breakdown voltage at 60 V among all substitutes, exceeding the original 50 V specification. This part is AEC-Q101 automotive qualified and maintains the 3-XFDFN package. Power dissipation is 250 mW. This part is suitable for applications requiring enhanced voltage margin or automotive-grade qualification.

BC857AMB,315 and BC857BMB,315 are Nexperia parts in the 3-XFDFN package with 45 V breakdown voltage and 250 mW power dissipation. Both carry AEC-Q101 automotive qualification. BC857BMB,315 provides higher DC current gain (220 @ 2mA, 5V) compared to BC857AMB,315 (125 @ 2mA, 5V).

Alternative Package Configurations (SOT-883):

BC857AM,315 and BC857BM,315 are Nexperia parts in the SOT-883 package. These require board layout modification as the SOT-883 footprint differs from the original 3-XFDFN package. Both are AEC-Q101 qualified. Power dissipation is reduced to 150 mW. BC857BM,315 provides higher DC current gain (220 @ 2mA, 5V) compared to BC857AM,315 (125 @ 2mA, 5V).

Compliance Status:

All substitute parts are ROHS3 compliant, REACH unaffected, and maintain MSL 1 (Unlimited) moisture sensitivity rating, matching the original part specifications.

Frequently Asked Questions (FAQ)

Q: Can BC857BLP4-7B be used as a direct replacement for DP0150ALP4-7B without board modifications?

A: BC857BLP4-7B maintains the same 3-XFDFN package footprint (X2-DFN1006-3 / DFN1006B-3) as DP0150ALP4-7B, enabling direct board-level substitution without layout changes. Both parts are surface mount devices with identical pinout and mechanical dimensions.

Q: What is the impact of the reduced power dissipation rating in BC857BLP4-7B (250 mW vs. 450 mW)?

A: Applications must be evaluated to confirm that actual power dissipation remains below 250 mW. The power dissipation rating is determined by the product of collector current and collector-emitter voltage. If the original design operated near 450 mW, thermal analysis is required to confirm operation within the reduced 250 mW limit of the substitute part.

Q: Why is the collector-emitter breakdown voltage lower in BC857BLP4-7B (45 V vs. 50 V)?

A: The BC857BLP4-7B is rated for 45 V maximum collector-emitter breakdown voltage. Applications operating at voltages below 45 V are unaffected. Applications requiring operation above 45 V should use BC856BMBYL, which is rated for 60 V breakdown voltage.

Q: Are the SOT-883 package alternatives (BC857AM,315 and BC857BM,315) suitable for existing board designs?

A: SOT-883 package alternatives require board layout modification as the footprint differs from the original 3-XFDFN package. These parts are suitable only for new designs or boards undergoing redesign. For existing boards, use BC857BLP4-7B, BC856BMBYL, BC857AMB,315, or BC857BMB,315, which maintain the 3-XFDFN package.

Q: What is the difference between BC857AM,315 and BC857BM,315?

A: Both parts are Nexperia PNP transistors in the SOT-883 package with identical electrical specifications except for DC current gain. BC857BM,315 provides a minimum DC current gain of 220 @ 2mA, 5V, while BC857AM,315 provides 125 @ 2mA, 5V. Selection depends on circuit requirements for current gain.

Q: Do all substitute parts meet automotive qualification requirements?

A: BC856BMBYL, BC857AM,315, BC857AMB,315, BC857BM,315, and BC857BMB,315 are AEC-Q101 qualified automotive-grade parts. BC857BLP4-7B is not listed with automotive qualification. Selection of automotive-qualified parts is required for automotive applications.

Q: What is the significance of the higher transition frequency in substitute parts (100 MHz vs. 80 MHz)?

A: The higher transition frequency in substitute parts (100 MHz) exceeds the original specification (80 MHz), providing improved high-frequency performance. This enhancement does not create compatibility issues and may improve circuit performance in applications utilizing higher frequency operation.

Q: Are there inventory considerations when selecting substitute parts?

A: Inventory levels vary among substitute parts. BC857BLP4-7B has 20,777 pieces in stock, BC857BM,315 has 16,979 pieces, BC857BMB,315 has 7,856 pieces, BC857AM,315 has 10,511 pieces, BC856BMBYL has 9,773 pieces, and BC857AMB,315 has 849 pieces. Availability should be confirmed for production planning.

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