PXT2907A-TP Equivalent & Substitute Parts

Part Overview

The PXT2907A-TP is an active-status PNP bipolar junction transistor manufactured by Micro Commercial Co, designed for interface applications requiring surface mount deployment. This component operates at maximum collector currents of 600 mA with a collector-emitter breakdown voltage of 60 V and transition frequency of 200 MHz. The part is supplied in bulk packaging with 1,070 units currently in stock. Substitute parts are identified when electrical specifications, mechanical packaging, and thermal operating ranges align with the original component's functional requirements, enabling direct replacement in circuit designs without performance degradation.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Current - Collector (Ic) (Max)	600	mA
Voltage - Collector Emitter Breakdown (Max)	60	V
Vce Saturation (Max) @ Ib, Ic	1.6V @ 50mA, 500mA	V
Current - Collector Cutoff (Max)	10	nA
DC Current Gain (hFE) (Min) @ Ic, Vce	100 @ 150mA, 10V	—
Frequency - Transition	200	MHz
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-243AA	—
Supplier Device Package	SOT-89	—

Substitute Part Grouping Explanation

Substitution of the PXT2907A-TP with the CXT2907A TR PBFREE is valid based on the following alignment of critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

Transistor type: Both are PNP configuration
Maximum collector current: Both rated at 600 mA
Collector-emitter breakdown voltage: Both rated at 60 V
Saturation voltage: Both specify 1.6V @ 50mA, 500mA
Collector cutoff current: Both specify 10 nA (ICBO)
DC current gain: Both specify minimum 100 @ 150mA, 10V
Transition frequency: Both rated at 200 MHz

Mechanical Compatibility:

Package type: Both use TO-243AA case
Supplier device package: Both use SOT-89
Mounting type: Both are surface mount

Thermal Operating Range: The CXT2907A TR PBFREE extends the lower operating temperature to -65°C compared to the PXT2907A-TP at -55°C, while maintaining the upper limit at 150°C. This extended range does not restrict substitution in applications operating within the original part's -55°C to 150°C specification.

Parameter Comparison

Parameter	PXT2907A-TP (Main Part)	CXT2907A TR PBFREE (Substitute)
Manufacturer	Micro Commercial Co	Central Semiconductor Corp
Transistor Type	PNP	PNP
Current - Collector (Ic) (Max)	600 mA	600 mA
Voltage - Collector Emitter Breakdown (Max)	60 V	60 V
Vce Saturation (Max) @ Ib, Ic	1.6V @ 50mA, 500mA	1.6V @ 50mA, 500mA
Current - Collector Cutoff (Max)	10 nA	10 nA
DC Current Gain (hFE) (Min) @ Ic, Vce	100 @ 150mA, 10V	100 @ 150mA, 10V
Frequency - Transition	200 MHz	200 MHz
Operating Temperature Range	-55°C to 150°C	-65°C to 150°C
Package / Case	TO-243AA	TO-243AA
Supplier Device Package	SOT-89	SOT-89
Product Status	Active	Active
Packaging Format	Bulk	Tape & Reel (TR)
RoHS Status	Not specified	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both the PXT2907A-TP and CXT2907A TR PBFREE are active-status components with REACH Unaffected designation, confirming regulatory compliance for their respective supply chains. The CXT2907A TR PBFREE provides additional RoHS3 compliance certification and Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating superior handling flexibility in manufacturing environments. The extended operating temperature range of the CXT2907A TR PBFREE (-65°C to 150°C versus -55°C to 150°C) provides thermal margin for applications operating at lower ambient temperatures while maintaining full compatibility within the original part's specified range. Selection between these parts should be based on packaging requirements (bulk versus tape & reel format) and compliance certifications needed for the end application.

Frequently Asked Questions (FAQ)

Q: Can the CXT2907A TR PBFREE directly replace the PXT2907A-TP in existing circuit designs?

A: Yes. Both transistors share identical electrical specifications for collector current (600 mA), breakdown voltage (60 V), saturation voltage (1.6V @ 50mA, 500mA), current gain (100 @ 150mA, 10V), and transition frequency (200 MHz). Both use the same TO-243AA package and SOT-89 supplier device package, enabling direct pin-compatible substitution.

Q: What is the difference in operating temperature ranges between these parts?

A: The PXT2907A-TP operates from -55°C to 150°C, while the CXT2907A TR PBFREE operates from -65°C to 150°C. The substitute part extends the lower temperature limit by 10°C. For applications operating within the original part's range, this difference does not affect compatibility.

Q: What packaging differences exist between these parts?

A: The PXT2907A-TP is supplied in bulk packaging, while the CXT2907A TR PBFREE is supplied in tape & reel (TR) format. Both use the same physical SOT-89 package. Selection depends on manufacturing process requirements and inventory management practices.

Q: Are there compliance or certification differences?

A: The CXT2907A TR PBFREE carries RoHS3 compliance certification and an MSL rating of 1 (Unlimited), while the PXT2907A-TP does not specify these certifications. Both parts are REACH Unaffected. Applications requiring RoHS3 compliance should use the CXT2907A TR PBFREE.

Q: Do these transistors have identical electrical performance in circuit operation?

A: Yes. All critical electrical parameters—maximum collector current, breakdown voltage, saturation voltage, cutoff current, current gain, and transition frequency—are identical between the two parts. Circuit performance will be equivalent when substituting one for the other.

Q: What is the significance of the MSL rating on the CXT2907A TR PBFREE?

A: The MSL 1 (Unlimited) rating indicates the component has unlimited shelf life and does not require moisture baking before soldering, simplifying handling and storage procedures in manufacturing environments.

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