BC53PA,115 Equivalent & Substitute Parts

Part Overview

The BC53PA,115 is an automotive-grade PNP bipolar junction transistor manufactured by Nexperia USA Inc., designed for surface mount applications in the 3-HUSON (2x2) package. This component operates at maximum collector current of 1 A with a collector-emitter breakdown voltage of 80 V and delivers 420 mW maximum power dissipation. The device is qualified to AEC-Q100 automotive standards and maintains active product status. 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	PNP	—
Current - Collector (Ic) Max	1	A
Voltage - Collector Emitter Breakdown (Max)	80	V
Vce Saturation (Max) @ Ib, Ic	500 mV @ 50 mA, 500 mA	—
Current - Collector Cutoff (Max)	100	nA
DC Current Gain (hFE) Min @ Ic, Vce	63 @ 150 mA, 2 V	—
Power - Max	420	mW
Frequency - Transition	145	MHz
Operating Temperature (TJ)	150	°C
Grade	Automotive	—
Qualification	AEC-Q100	—
Mounting Type	Surface Mount	—
Package / Case	3-PowerUDFN	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the BC53PA,115 are classified into two categories based on electrical and mechanical parameter alignment:

Parametric Equivalents maintain identical electrical specifications and package form factor. These parts satisfy direct substitution requirements:

BC53-10PA,115 (Nexperia USA Inc.)
BC53-16PA,115 (Nexperia USA Inc.)

Both parametric equivalents share the same transistor type (PNP), collector current rating (1 A), collector-emitter breakdown voltage (80 V), saturation voltage (500 mV @ 50 mA, 500 mA), cutoff current (100 nA), DC current gain (63 @ 150 mA, 2 V), power dissipation (420 mW), transition frequency (145 MHz), operating temperature (150°C), automotive grade, AEC-Q100 qualification, surface mount technology, 3-PowerUDFN package, ROHS3 compliance, and MSL 1 rating.

Similar Parts provide functional equivalence with allowable deviations in specific parameters:

BC53-16PA-7 (Diodes Incorporated): Differs in transition frequency (125 MHz vs. 145 MHz), power dissipation (520 mW vs. 420 mW), DC current gain (100 vs. 63), operating temperature range (-65°C ~ 150°C vs. 150°C), AEC-Q101 qualification (vs. AEC-Q100), and package designation (U-DFN-2020-3 vs. 3-HUSON).
BCP53T1G (onsemi): Differs in collector current rating (1.5 A vs. 1 A), power dissipation (1.5 W vs. 420 mW), transition frequency (50 MHz vs. 145 MHz), DC current gain (40 vs. 63), operating temperature range (-65°C ~ 150°C vs. 150°C), and package form (SOT-223 vs. 3-HUSON).

Substitution eligibility is determined by matching the core parameters: transistor type (PNP), collector-emitter breakdown voltage (80 V), saturation voltage (500 mV @ 50 mA, 500 mA), and cutoff current (100 nA).

Parameter Comparison

Parameter	BC53PA,115	BC53-10PA,115	BC53-16PA,115	BC53-16PA-7	BCP53T1G
Manufacturer	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Diodes Incorporated	onsemi
Transistor Type	PNP	PNP	PNP	PNP	PNP
Current - Collector (Ic) Max	1 A	1 A	1 A	1 A	1.5 A
Voltage - Collector Emitter Breakdown (Max)	80 V	80 V	80 V	80 V	80 V
Vce Saturation (Max) @ Ib, Ic	500 mV @ 50 mA, 500 mA	500 mV @ 50 mA, 500 mA	500 mV @ 50 mA, 500 mA	500 mV @ 50 mA, 500 mA	500 mV @ 50 mA, 500 mA
Current - Collector Cutoff (Max)	100 nA	100 nA	100 nA	100 nA	100 nA
DC Current Gain (hFE) Min @ Ic, Vce	63 @ 150 mA, 2 V	63 @ 150 mA, 2 V	63 @ 150 mA, 2 V	100 @ 150 mA, 2 V	40 @ 150 mA, 2 V
Power - Max	420 mW	420 mW	420 mW	520 mW	1.5 W
Frequency - Transition	145 MHz	145 MHz	145 MHz	125 MHz	50 MHz
Operating Temperature (TJ)	150°C	150°C	150°C	-65°C ~ 150°C	-65°C ~ 150°C
Grade	Automotive	Automotive	Automotive	Automotive	—
Qualification	AEC-Q100	AEC-Q100	AEC-Q100	AEC-Q101	—
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	3-PowerUDFN	3-PowerUDFN	3-PowerUDFN	3-UDFN	TO-261-4, TO-261AA
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Substitution (Parametric Equivalents):

BC53-10PA,115 and BC53-16PA,115 are qualified for direct substitution with BC53PA,115. Both parts maintain identical electrical performance specifications, automotive-grade classification, AEC-Q100 qualification, and package compatibility. These parts are manufactured by Nexperia USA Inc. and carry active product status. Selection between these parametric equivalents is determined by inventory availability and supply chain requirements rather than electrical performance differences.

Conditional Substitution (Similar Parts):

BC53-16PA-7 (Diodes Incorporated) is suitable for applications where the following parameter variations are acceptable: reduced transition frequency (125 MHz vs. 145 MHz), increased power dissipation capability (520 mW vs. 420 mW), higher DC current gain (100 vs. 63), extended operating temperature range (-65°C ~ 150°C vs. 150°C), and AEC-Q101 qualification (vs. AEC-Q100). The package designation differs (U-DFN-2020-3 vs. 3-HUSON) and requires PCB layout verification for mechanical compatibility.

BCP53T1G (onsemi) is suitable for applications where the following parameter variations are acceptable: increased collector current rating (1.5 A vs. 1 A), significantly increased power dissipation capability (1.5 W vs. 420 mW), reduced transition frequency (50 MHz vs. 145 MHz), lower DC current gain (40 vs. 63), extended operating temperature range (-65°C ~ 150°C vs. 150°C), and different package form (SOT-223 vs. 3-HUSON). This part requires PCB layout redesign due to package incompatibility.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and saturation voltage specifications identical to the main part.

Frequently Asked Questions (FAQ)

Q: Can BC53-10PA,115 and BC53-16PA,115 be used interchangeably with BC53PA,115?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, package form, and automotive qualifications. They are direct substitutes for BC53PA,115 without circuit modification.

Q: What are the key differences between BC53-16PA-7 and BC53PA,115?

A: BC53-16PA-7 differs in transition frequency (125 MHz vs. 145 MHz), power dissipation (520 mW vs. 420 mW), DC current gain (100 vs. 63), operating temperature range (-65°C ~ 150°C vs. 150°C), qualification standard (AEC-Q101 vs. AEC-Q100), and package designation (U-DFN-2020-3 vs. 3-HUSON). The reduced transition frequency may impact high-frequency circuit performance. The package difference requires PCB layout verification.

Q: Is BCP53T1G a suitable replacement for BC53PA,115?

A: BCP53T1G provides functional equivalence with significant parameter variations. The collector current rating is higher (1.5 A vs. 1 A), power dissipation is substantially higher (1.5 W vs. 420 mW), transition frequency is lower (50 MHz vs. 145 MHz), and DC current gain is lower (40 vs. 63). The SOT-223 package is mechanically incompatible with the 3-HUSON package and requires PCB redesign. This part is suitable only for applications where these parameter differences are acceptable and PCB layout can be modified.

Q: What parameters must remain constant for substitution eligibility?

A: The following parameters must remain constant for substitution: transistor type (PNP), collector-emitter breakdown voltage (80 V), saturation voltage (500 mV @ 50 mA, 500 mA), and collector cutoff current (100 nA). These parameters define the core functional characteristics of the device.

Q: Are all substitute parts automotive-qualified?

A: BC53-10PA,115 and BC53-16PA,115 carry AEC-Q100 automotive qualification identical to BC53PA,115. BC53-16PA-7 carries AEC-Q101 qualification. BCP53T1G does not carry an automotive grade designation in the provided specifications.

Q: What is the inventory status of substitute parts?

A: BC53-10PA,115 has 4101 pieces in stock. BC53-16PA,115 has 2875 pieces in stock. BC53-16PA-7 has 8100 pieces in stock. BCP53T1G has 105100 pieces in stock. All parts are listed as new original stock.

Q: Can BC53PA,115 be used in applications requiring the higher current rating of BCP53T1G?

A: No. BC53PA,115 is rated for maximum collector current of 1 A. Applications requiring 1.5 A collector current must use BCP53T1G or equivalent higher-current devices. Using BC53PA,115 in over-current conditions will result in device failure.

Q: What package considerations apply when substituting BC53-16PA-7?

A: BC53-16PA-7 uses U-DFN-2020-3 package designation versus 3-HUSON for BC53PA,115. Although both are surface mount packages, the physical dimensions and pad layout differ. PCB layout verification is required to confirm mechanical and electrical compatibility before implementation.

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