2PB1219AS,115 Equivalent & Substitute Parts

Part Overview

The 2PB1219AS,115 is a PNP bipolar junction transistor manufactured by Nexperia USA Inc., designed for surface mount applications in the SOT-323 package. This active-status component operates at 50V collector-emitter breakdown voltage with a maximum collector current of 500 mA and 200 mW power dissipation. The device is qualified to AEC-Q101 automotive standards and carries ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges for this transistor category.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Voltage - Collector Emitter Breakdown (Max)	50	V
Current - Collector (Ic) (Max)	500	mA
Power - Max	200	mW
Frequency - Transition	140	MHz
Operating Temperature (TJ)	150	°C
Package / Case	SC-70, SOT-323	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the 2PB1219AS,115 is determined by the following critical parameters:

Electrical Compatibility Criteria:

Transistor type must be PNP
Collector-emitter breakdown voltage must be greater than or equal to 50V
Maximum collector current must be greater than or equal to 500 mA
Maximum power dissipation must be greater than or equal to 200 mW
Operating temperature range must support 150°C maximum junction temperature

Mechanical Compatibility Criteria:

Package must be SC-70 or SOT-323 (surface mount)
Mounting type must be surface mount
Pin configuration must be compatible with SOT-323 footprint

Compliance Criteria:

RoHS3 compliance required
Active product status required

Substitute parts are grouped into two categories based on voltage rating:

Category A - Full Voltage Rating (50V): Parts meeting or exceeding the 50V collector-emitter breakdown specification of the main part.

Category B - Reduced Voltage Rating (45V): Parts with 45V collector-emitter breakdown voltage. These parts operate within acceptable substitution parameters for applications where the 50V rating is not a critical design constraint, provided circuit design accommodates the lower voltage specification.

Parameter Comparison

Part Number	Manufacturer	Ic (Max) mA	Vce Breakdown (Max) V	Power (Max) mW	Frequency MHz	Package	RoHS Status
2PB1219AS,115	Nexperia USA Inc.	500	50	200	140	SOT-323	ROHS3
2SAR523UBTL	Rohm Semiconductor	100	50	200	300	UMT3F	ROHS3
BC807-16W RFG	Taiwan Semiconductor Corporation	500	45	200	80	SOT-323	ROHS3
BC807-25W RFG	Taiwan Semiconductor Corporation	500	45	200	80	SOT-323	ROHS3
BC807-25WT1G	onsemi	500	45	460	100	SOT-323	ROHS3
BC807-40W RFG	Taiwan Semiconductor Corporation	500	45	200	80	SOT-323	ROHS3
BC807-40W-7	Diodes Incorporated	500	45	200	100	SOT-323	ROHS3

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement):

BC807-25WT1G (onsemi) and BC807-40W-7 (Diodes Incorporated) are the preferred substitutes. Both parts maintain 500 mA collector current capacity, SOT-323 package compatibility, and ROHS3 compliance. BC807-25WT1G provides enhanced power dissipation capability at 460 mW. BC807-40W-7 extends the operating temperature range to -65°C, providing broader environmental coverage. Both are active-status products with established supply availability.

Secondary Substitutes (Conditional Replacement):

BC807-16W RFG, BC807-25W RFG, and BC807-40W RFG (Taiwan Semiconductor Corporation) are functionally equivalent in collector current and package format but operate at 45V collector-emitter breakdown voltage. These parts are suitable for applications where the 50V specification is not a limiting design factor. All three variants maintain 500 mA current capacity and SOT-323 compatibility with ROHS3 compliance.

Limited Substitution (Current-Constrained Applications):

2SAR523UBTL (Rohm Semiconductor) operates at the full 50V specification but is limited to 100 mA maximum collector current. This part is suitable only for low-current applications where the 500 mA capacity of the main part is not required. The package format is UMT3F rather than SOT-323, requiring footprint verification. Higher transition frequency (300 MHz) may provide performance advantages in specific RF or high-speed switching applications.

Frequently Asked Questions (FAQ)

Q: Can BC807-25W RFG be used as a direct replacement for 2PB1219AS,115?

A: BC807-25W RFG is mechanically and electrically compatible in SOT-323 package format with equivalent 500 mA collector current and 200 mW power rating. The primary difference is the 45V collector-emitter breakdown voltage compared to 50V in the main part. Direct substitution is permissible in applications where circuit design does not depend on the 50V specification.

Q: What is the difference between BC807-16W RFG, BC807-25W RFG, and BC807-40W RFG?

A: All three parts are manufactured by Taiwan Semiconductor Corporation in SOT-323 package with identical electrical specifications: 45V breakdown voltage, 500 mA collector current, 80 MHz transition frequency, and 200 mW power dissipation. The suffix designations (16W, 25W, 40W) indicate different DC current gain (hFE) specifications at 100 mA collector current: 100, 160, and 250 respectively. Selection depends on the required gain characteristics for the application circuit.

Q: Why does 2SAR523UBTL have a different package designation (UMT3F) than the main part (SOT-323)?

A: UMT3F and SOT-323 are equivalent package formats for surface mount three-terminal devices, both measuring approximately 2.0 mm × 1.3 mm. The different designations reflect manufacturer nomenclature. Footprint compatibility must be verified with the PCB design, as pin pitch and orientation are identical but silkscreen markings may differ.

Q: Is BC807-25WT1G suitable for high-power applications compared to other substitutes?

A: BC807-25WT1G provides 460 mW maximum power dissipation, which is 2.3 times higher than the 200 mW specification of the main part and most other substitutes. This enhanced rating allows operation at higher collector currents or provides thermal margin in power-limited designs. The part maintains 500 mA collector current capacity and SOT-323 package compatibility.

Q: What is the operating temperature range difference between BC807-40W-7 and other BC807 variants?

A: BC807-40W-7 (Diodes Incorporated) specifies -65°C to 150°C operating range, extending the lower temperature limit by 10°C compared to BC807-16W RFG, BC807-25W RFG, and BC807-40W RFG, which operate from -55°C to 150°C. This extended range is beneficial for applications requiring operation in extreme cold environments.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the environmental compliance status of the main part 2PB1219AS,115.

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