BC53PAS-QX Equivalent & Substitute Parts

Part Overview

The BC53PAS-QX is an active-status PNP bipolar junction transistor manufactured by Nexperia USA Inc. in a 3-UDFN Exposed Pad surface mount package. This component is designed for general-purpose switching and amplification applications requiring moderate current handling and frequency response. The transistor operates at a maximum collector current of 1 A with an 80 V collector-emitter breakdown voltage rating and 420 mW power dissipation capability.

Substitute parts are necessary when the primary part number becomes unavailable, when procurement lead times require alternative sourcing, or when design flexibility permits selection from equivalent variants within the same product family.

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	500mV @ 50mA, 500mA	—
Current - Collector Cutoff (Max)	100	nA
DC Current Gain (hFE) (Min) @ Ic, Vce	63 @ 150mA, 2V	—
Power - Max	420	mW
Frequency - Transition	145	MHz
Operating Temperature (TJ)	150	°C
Package / Case	3-UDFN Exposed Pad	—
Supplier Device Package	DFN2020D-3	—
Mounting Type	Surface Mount	—
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

All substitute parts listed for the BC53PAS-QX are parametric equivalents manufactured by Nexperia USA Inc. within the BC53 product family. Substitution is valid based on the following criteria:

Electrical Parameters (Identical Across All Parts):

Transistor Type: PNP
Maximum Collector Current: 1 A
Collector-Emitter Breakdown Voltage: 80 V
Vce Saturation: 500mV @ 50mA, 500mA
Collector Cutoff Current: 100nA
DC Current Gain (hFE): 63 @ 150mA, 2V
Maximum Power Dissipation: 420 mW
Transition Frequency: 145 MHz
Maximum Operating Temperature: 150°C

Mechanical Parameters (Identical Across All Parts):

Package Type: 3-UDFN Exposed Pad
Supplier Device Package: DFN2020D-3
Mounting Type: Surface Mount
Packaging Format: Tape & Reel (TR)

Compliance & Status (Identical Across All Parts):

Product Status: Active
RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected
ECCN: EAR99
HTSUS: 8541.21.0075

The substitute parts BC53PASX, BC53-10PASX, and BC53-16PASX differ only in internal manufacturing process variants and moisture sensitivity level specifications, with no impact on electrical or mechanical performance in standard applications.

Parameter Comparison

Parameter	BC53PAS-QX	BC53PASX	BC53-10PASX	BC53-16PASX
Manufacturer	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.
Transistor Type	PNP	PNP	PNP	PNP
Ic (Max)	1 A	1 A	1 A	1 A
Vce Breakdown (Max)	80 V	80 V	80 V	80 V
Vce Saturation (Max)	500mV @ 50mA, 500mA	500mV @ 50mA, 500mA	500mV @ 50mA, 500mA	500mV @ 50mA, 500mA
Icbo (Max)	100 nA	100 nA	100 nA	100 nA
hFE (Min)	63 @ 150mA, 2V	63 @ 150mA, 2V	63 @ 150mA, 2V	63 @ 150mA, 2V
Power (Max)	420 mW	420 mW	420 mW	420 mW
Frequency - Transition	145 MHz	145 MHz	145 MHz	145 MHz
Operating Temperature (TJ)	150°C	150°C	150°C	150°C
Package / Case	3-UDFN Exposed Pad	3-UDFN Exposed Pad	3-UDFN Exposed Pad	3-UDFN Exposed Pad
Supplier Device Package	DFN2020D-3	DFN2020D-3	DFN2020D-3	DFN2020D-3
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All substitute parts—BC53PASX, BC53-10PASX, and BC53-16PASX—are direct parametric equivalents to the BC53PAS-QX and are suitable for interchangeable use in applications where the primary part number is unavailable.

Selection Basis:

All parts maintain active product status with Nexperia USA Inc., ensuring ongoing manufacturing support and supply chain availability. All parts carry ROHS3 compliance and REACH Unaffected status, meeting environmental and regulatory requirements for industrial and automotive applications.

The BC53-10PASX and BC53-16PASX variants include specified Moisture Sensitivity Level (MSL) ratings of 1 (Unlimited), indicating superior moisture handling characteristics compared to the primary part number. This specification is relevant for storage, handling, and assembly environments where moisture exposure is a consideration.

Selection among the three substitute options should be based on:

Current inventory availability
Procurement lead time requirements
Moisture sensitivity level requirements for the specific application environment
Supply chain continuity planning

All parts are supplied in Tape & Reel (TR) packaging format suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can BC53PASX, BC53-10PASX, and BC53-16PASX be used interchangeably with BC53PAS-QX?

A: Yes. All three substitute parts are parametric equivalents with identical electrical characteristics, maximum ratings, and performance specifications. They are manufactured in the same 3-UDFN Exposed Pad package (DFN2020D-3) with identical mounting requirements and are suitable for direct substitution in circuit designs.

Q: Are there differences in performance between the substitute parts?

A: No electrical or mechanical performance differences exist between the parts. The substitute variants differ only in manufacturing process designations and moisture sensitivity level specifications. All parts deliver identical electrical performance across the specified operating range.

Q: What is the significance of the Moisture Sensitivity Level (MSL) rating on BC53-10PASX and BC53-16PASX?

A: MSL 1 (Unlimited) indicates that these parts have no moisture sensitivity restrictions during storage and handling. This specification is relevant for supply chain logistics, warehouse storage conditions, and assembly floor environments where moisture exposure may occur. The primary part number BC53PAS-QX does not specify an MSL rating.

Q: Are all parts suitable for automotive applications?

A: The primary part number BC53PAS-QX carries an Automotive grade designation with AEC-Q101 qualification. The substitute parts do not specify automotive grade or AEC-Q101 qualification in the provided data. For applications requiring automotive qualification, the BC53PAS-QX is the specified part. For general industrial applications, all parts are suitable.

Q: What is the package compatibility for PCB assembly?

A: All parts use the 3-UDFN Exposed Pad package (DFN2020D-3) in Surface Mount configuration. PCB footprints, solder pad layouts, and assembly processes are identical across all parts. No design modifications are required when substituting between these part numbers.

Q: Are there any supply chain advantages to selecting one substitute over another?

A: Current inventory levels differ: BC53-10PASX has 3757 units in stock, BC53-16PASX has 3189 units, BC53PASX has 1447 units, and BC53PAS-QX has 997 units. Selection based on inventory availability can reduce procurement lead times and support supply chain continuity.

Q: Do all parts meet environmental compliance requirements?

A: Yes. All parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and use.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message