Equivalent & Substitute Parts for 2PB709AR,115 PNP Bipolar Transistor

Part Overview

The 2PB709AR,115 is a PNP bipolar junction transistor manufactured by NXP USA Inc., designed for surface mount applications in the SOT-23-3 (TO-236-3, SC-59) package. This component operates at a maximum collector current of 100 mA, collector-emitter breakdown voltage of 45 V, and maximum power dissipation of 250 mW with a transition frequency of 70 MHz.

The 2PB709AR,115 is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for legacy systems or new designs requiring compatible performance characteristics.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Collector Current (Ic) Maximum	100	mA
Collector-Emitter Breakdown Voltage (VCEO)	45	V
Power Dissipation Maximum	250	mW
Transition Frequency (fT)	70	MHz
Operating Temperature Maximum	150	°C
Package Type	SOT-23-3 (TO-236-3, SC-59)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the 2PB709AR,115 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Criteria:

Transistor type must be PNP
Collector-emitter breakdown voltage must be 45 V or greater
Package must be SOT-23-3 (TO-236-3, SC-59) or equivalent surface mount configuration
Mounting type must be surface mount
RoHS3 compliance required
Moisture sensitivity level MSL 1 (Unlimited) required

Performance Considerations:

Collector current rating of 100 mA minimum (substitute parts rated 500 mA exceed this requirement and remain compatible)
Transition frequency of 70 MHz minimum (substitute parts rated 100 MHz exceed this requirement and remain compatible)
Power dissipation of 250 mW minimum (substitute parts rated 300–310 mW exceed this requirement and remain compatible)
DC current gain (hFE) specifications vary by part number but do not restrict substitution when other parameters are met

All substitute parts listed below meet or exceed the critical electrical and mechanical parameters of the 2PB709AR,115 and are qualified for direct replacement in applications requiring PNP transistor functionality within the specified voltage and current ratings.

Parameter Comparison

Part Number	Manufacturer	Ic (Max) mA	VCEO (Max) V	Power (Max) mW	fT MHz	Package	Status	RoHS3
2PB709AR,115	NXP USA Inc.	100	45	250	70	SOT-23-3	Obsolete	Compliant
BC807-16-7-F	Diodes Incorporated	500	45	310	100	SOT-23-3	Active	Compliant
BC807-16LT1G	onsemi	500	45	300	100	SOT-23-3	Active	Compliant
BC807-16LT3G	onsemi	500	45	300	100	SOT-23-3	Active	Compliant
BC807-25-TP	Micro Commercial Co	500	45	300	100	SOT-23-3	Active	Compliant
BC807-25LT1G	onsemi	500	45	300	100	SOT-23-3	Active	Compliant
BC807-25LT3G	onsemi	500	45	300	100	SOT-23-3	Active	Compliant
BC807-40-7-F	Diodes Incorporated	500	45	310	100	SOT-23-3	Active	Compliant
BC807-40-TP	Micro Commercial Co	500	45	300	100	SOT-23-3	Active	Compliant
BC807-40LT1G	onsemi	500	45	300	100	SOT-23-3	Active	Compliant
BC807-40LT3G	onsemi	500	45	300	100	SOT-23-3	Active	Compliant

Engineering Selection Recommendations

All listed substitute parts are active products with current manufacturing status, ensuring long-term supply chain availability compared to the obsolete 2PB709AR,115. All substitute parts maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, meeting regulatory and environmental requirements.

The BC807 series from multiple manufacturers (Diodes Incorporated, onsemi, Micro Commercial Co) provides direct functional equivalence with enhanced electrical performance. These parts exceed the original 2PB709AR,115 specifications in collector current capacity (500 mA vs. 100 mA), transition frequency (100 MHz vs. 70 MHz), and power dissipation (300–310 mW vs. 250 mW), while maintaining identical package configuration and voltage rating.

Selection among substitute parts should be based on packaging preference (Cut Tape & Digi-Reel, Tape & Reel, or alternative supplier formats), DC current gain (hFE) requirements specific to the application, and inventory availability from preferred distributors.

Frequently Asked Questions (FAQ)

Q: Can BC807 series transistors directly replace the 2PB709AR,115 in existing designs?

A: Yes. All BC807 variants listed meet or exceed the electrical specifications of the 2PB709AR,115. The identical SOT-23-3 package, 45 V collector-emitter breakdown voltage, and PNP transistor type ensure mechanical and electrical compatibility. The higher current and power ratings of BC807 parts do not create incompatibility; they provide design margin.

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

A: These designations indicate different DC current gain (hFE) specifications. BC807-16 specifies hFE minimum of 100 at 100 mA, 1 V. BC807-25 specifies hFE minimum of 160 at 100 mA, 1 V. BC807-40 specifies hFE minimum of 250 at 100 mA, 1 V. Selection depends on circuit requirements for base drive and switching characteristics.

Q: Are packaging variants (Cut Tape, Tape & Reel, Digi-Reel) electrically equivalent?

A: Yes. Packaging variants (CT, TR, Digi-Reel) represent different supply formats for the same transistor die and electrical specifications. The choice between formats depends on manufacturing process requirements and volume handling capabilities, not electrical performance.

Q: Does the higher collector current rating of BC807 (500 mA vs. 100 mA) affect circuit operation?

A: No. Higher current ratings indicate greater maximum capability but do not change transistor behavior at lower operating currents. Circuits designed for 100 mA operation will function identically with BC807 parts rated for 500 mA.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance certification and MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental and regulatory status of the original 2PB709AR,115.

Q: Which manufacturer should be selected for new designs?

A: onsemi BC807 variants (BC807-16LT1G, BC807-25LT1G, BC807-40LT1G, BC807-40LT3G) offer the highest inventory availability and active product status. Diodes Incorporated and Micro Commercial Co variants provide alternative sourcing options with equivalent specifications.

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