MPS2907AG Equivalent & Substitute Parts

Part Overview

The MPS2907AG is a PNP bipolar junction transistor manufactured by onsemi, rated for 60 V collector-emitter breakdown voltage and 600 mA maximum collector current in a through-hole TO-92 package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The MPS2907AG serves in general-purpose switching and amplification applications requiring PNP transistor functionality within the specified electrical and thermal parameters.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Collector Current (Max)	600	mA
Collector-Emitter Breakdown Voltage (Max)	60	V
Vce Saturation (Max)	1.6	V @ 50mA, 500mA
DC Current Gain (hFE Min)	100	@ 150mA, 10V
Power Dissipation (Max)	625	mW
Transition Frequency	200	MHz
Operating Temperature Range	-55 to 150	°C
Mounting Type	Through Hole	—
Package	TO-92-3 (TO-226)	—

Substitute Part Grouping Explanation

Substitution of the MPS2907AG is determined by matching the following critical electrical and mechanical parameters:

Electrical Matching Criteria:

Transistor type: PNP configuration
Collector-emitter breakdown voltage: 60 V minimum
Collector current rating: 600 mA or higher
DC current gain (hFE): 100 minimum at specified bias conditions
Transition frequency: 200 MHz minimum
Vce saturation: 1.6 V maximum at specified conditions

Mechanical Matching Criteria:

Mounting type: Through Hole (for direct pin-compatible replacement)
Package designation: TO-92-3 or TO-226-3 (for through-hole variants)

Substitute parts are grouped into two categories:

Direct Pin-Compatible Substitutes (Through Hole): Parts maintaining identical or superior electrical specifications and through-hole TO-92 packaging, enabling direct circuit board replacement without layout modification.

Functional Equivalents (Surface Mount): Parts meeting all electrical specifications but utilizing surface-mount packaging (SOT-23-3), requiring circuit board redesign and assembly process changes.

Parameter Comparison

Parameter	MPS2907AG	KSP2907ABU	PN2907ABU	PN2907A PBFREE	MMBT2907ALT1G
Manufacturer	onsemi	Fairchild Semiconductor	onsemi	Central Semiconductor Corp	onsemi
Product Status	Obsolete	Active	Active	Active	Active
Transistor Type	PNP	PNP	PNP	PNP	PNP
Ic (Max)	600 mA	600 mA	800 mA	600 mA	600 mA
Vce Breakdown (Max)	60 V	60 V	60 V	60 V	60 V
Vce Saturation (Max)	1.6 V @ 50mA, 500mA	1.6 V @ 50mA, 500mA	1.6 V @ 50mA, 500mA	1.6 V @ 50mA, 500mA	1.6 V @ 50mA, 500mA
ICBO (Max)	10 nA	10 nA	20 nA	10 nA	10 nA
hFE (Min)	100 @ 150mA, 10V	100 @ 150mA, 10V	100 @ 150mA, 10V	100 @ 150mA, 10V	100 @ 150mA, 10V
Power (Max)	625 mW	625 mW	625 mW	625 mW	300 mW
Frequency - Transition	200 MHz	200 MHz	200 MHz	200 MHz	200 MHz
Operating Temperature	-55 to 150°C	150°C	-55 to 150°C	-65 to 150°C	-55 to 150°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Surface Mount
Package	TO-92-3 (TO-226)	TO-92-3 (TO-226AA)	TO-92-3 (TO-226AA)	TO-92-3 (TO-226AA)	SOT-23-3 (TO-236)
RoHS Status	Not specified	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Pin-Compatible Through-Hole Replacement:

KSP2907ABU (Fairchild Semiconductor) provides electrical equivalence to the MPS2907AG with active product status. This part maintains 600 mA collector current, 60 V breakdown voltage, and identical saturation characteristics. The KSP2907ABU is available in bulk packaging and enables direct circuit board substitution without layout modification.

PN2907A PBFREE (Central Semiconductor Corp) offers full electrical equivalence with extended operating temperature range (-65 to 150°C) compared to the MPS2907AG (-55 to 150°C). This part carries ROHS3 compliance certification and is suitable for applications requiring lead-free construction. Through-hole TO-92-3 packaging permits direct pin replacement.

PN2907ABU (onsemi) provides enhanced collector current capability at 800 mA, exceeding the MPS2907AG specification of 600 mA. All other electrical parameters match or exceed the original device. This part carries ROHS3 compliance and maintains through-hole TO-92-3 packaging for direct substitution.

For Surface-Mount Applications:

MMBT2907ALT1G (onsemi) delivers electrical equivalence in surface-mount SOT-23-3 packaging. This part matches all critical electrical specifications including 600 mA collector current, 60 V breakdown voltage, and 200 MHz transition frequency. Power dissipation is reduced to 300 mW due to smaller package geometry. ROHS3 compliance and active product status support modern manufacturing requirements. Circuit board redesign is required for implementation.

Compliance and Availability Considerations:

All substitute parts maintain REACH compliance status. PN2907ABU, PN2907A PBFREE, and MMBT2907ALT1G carry ROHS3 certification, supporting regulatory requirements for lead-free and restricted substance compliance. KSP2907ABU compliance status is not specified in available documentation.

Frequently Asked Questions (FAQ)

Q: Can KSP2907ABU directly replace MPS2907AG in existing circuit boards?

A: Yes. KSP2907ABU maintains identical electrical specifications (600 mA Ic, 60 V Vce breakdown, 1.6 V saturation, 100 hFE minimum, 200 MHz transition frequency) and through-hole TO-92-3 packaging. No circuit board layout modification is required.

Q: What is the primary difference between PN2907ABU and the MPS2907AG?

A: PN2907ABU provides higher collector current capability at 800 mA maximum, compared to 600 mA for the MPS2907AG. All other electrical parameters are equivalent or superior. Both use through-hole TO-92-3 packaging.

Q: Why does MMBT2907ALT1G have lower power dissipation (300 mW vs. 625 mW)?

A: Power dissipation rating is determined by package thermal characteristics. The SOT-23-3 surface-mount package has smaller physical dimensions and different thermal properties compared to the through-hole TO-92-3 package, resulting in lower maximum power rating despite identical electrical specifications.

Q: Is PN2907A PBFREE suitable for applications requiring extended temperature operation?

A: Yes. PN2907A PBFREE operates from -65°C to 150°C, providing 10°C lower minimum temperature compared to the MPS2907AG (-55°C to 150°C). This extended range supports applications in harsh thermal environments.

Q: Can MMBT2907ALT1G be used as a direct replacement without circuit board redesign?

A: No. MMBT2907ALT1G uses surface-mount SOT-23-3 packaging, while MPS2907AG uses through-hole TO-92-3 packaging. Circuit board layout and assembly process modification is required. Pin configuration differs from through-hole variants.

Q: What compliance certifications apply to substitute parts?

A: PN2907ABU, PN2907A PBFREE, and MMBT2907ALT1G carry ROHS3 compliance certification. All substitute parts maintain REACH compliance status. KSP2907ABU compliance documentation is not specified.

Q: Are all substitute parts currently in active production?

A: Yes. KSP2907ABU, PN2907ABU, PN2907A PBFREE, and MMBT2907ALT1G all carry active product status. The original MPS2907AG is classified as obsolete, making these substitutes necessary for ongoing production support.

Q: Which substitute part provides the best thermal performance in high-power applications?

A: PN2907ABU and PN2907A PBFREE maintain the full 625 mW power dissipation rating of the MPS2907AG in through-hole TO-92-3 packaging. MMBT2907ALT1G is limited to 300 mW due to surface-mount package thermal characteristics.

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