MMBT2907AT-7 Equivalent & Substitute Parts

Part Overview

The MMBT2907AT-7 is a PNP bipolar junction transistor manufactured by Diodes Incorporated, designed for surface mount applications in SOT-523 packaging. This component operates at 60V collector-emitter breakdown voltage with a maximum collector current of 600 mA and 150 mW power dissipation. The device is qualified to AEC-Q101 automotive standards and carries an Obsolete product status. Due to its obsolete classification, equivalent and substitute parts with active product status are necessary for new designs and ongoing production requirements.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Collector Current (Max)	600	mA
Collector-Emitter Breakdown Voltage (Max)	60	V
Power Dissipation (Max)	150	mW
Transition Frequency	200	MHz
DC Current Gain (hFE Min)	100	@ 150mA, 10V
Operating Temperature Range	-55 to 150	°C
Package Type	SOT-523	Surface Mount
Grade	Automotive	AEC-Q101

Substitute Part Grouping Explanation

Substitution of the MMBT2907AT-7 is determined by the following critical parameters: transistor type (PNP), collector current rating (600 mA minimum), collector-emitter breakdown voltage (60 V minimum), transition frequency (200 MHz minimum), and operating temperature range (-55°C to 150°C minimum). Package compatibility and RoHS compliance status are secondary considerations based on application requirements.

Substitute parts are grouped into three categories:

Parametric Equivalents (Same Package, Same Electrical Ratings): Parts maintaining SOT-523 packaging with identical electrical specifications and automotive qualification.

Functional Equivalents (Different Package, Compatible Electrical Ratings): Parts with SOT-323 or SOT-23-3 packaging that meet or exceed the electrical performance requirements, suitable for applications where package footprint change is acceptable.

Cross-Manufacturer Alternatives (Active Status): Parts from alternative manufacturers meeting the same electrical specifications, available for supply chain diversification.

Parameter Comparison

Part Number	Manufacturer	Ic (Max) mA	Vce Breakdown (Max) V	Power (Max) mW	Frequency MHz	Package	Product Status	RoHS
MMBT2907AT-7	Diodes Incorporated	600	60	150	200	SOT-523	Obsolete	Non-compliant
MMBT2907AT-7-F	Diodes Incorporated	600	60	150	200	SOT-523	Active	ROHS3 Compliant
MMST2907A-7-F	Diodes Incorporated	600	60	200	200	SOT-323	Active	ROHS3 Compliant
CMUT2907A TR PBFREE	Central Semiconductor Corp	600	60	250	200	SOT-523	Active	ROHS3 Compliant
BSR16	Fairchild Semiconductor	800	60	350	200	SOT-23-3	Active	Not specified
MMBT2907AT-TP	Micro Commercial Co	600	60	150	140	SOT-523	Active	ROHS3 Compliant
MMST2907A-TP	Micro Commercial Co	600	60	200	200	SOT-323	Active	ROHS3 Compliant
PMST2907A,115	Nexperia USA Inc.	600	60	200	200	SOT-323	Active	ROHS3 Compliant
SMBT2907AE6327HTSA1	Infineon Technologies	600	60	330	200	SOT-23-3	Last Time Buy	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation for Direct Replacement:

MMBT2907AT-7-F (Diodes Incorporated) is the optimal substitute for the obsolete MMBT2907AT-7. This part maintains identical electrical specifications, SOT-523 packaging, automotive AEC-Q101 qualification, and achieves ROHS3 compliance. The part is in active production status with substantial inventory availability (23,200 units), ensuring supply continuity.

Secondary Recommendation for Package-Flexible Applications:

MMST2907A-7-F (Diodes Incorporated) provides equivalent electrical performance with increased power dissipation capability (200 mW vs. 150 mW) in SOT-323 packaging. This option is suitable for applications where PCB layout accommodates the smaller footprint. Active product status and ROHS3 compliance are confirmed.

Alternative Manufacturer Options:

CMUT2907A TR PBFREE (Central Semiconductor Corp) maintains SOT-523 packaging with enhanced power rating (250 mW) and extended lower operating temperature limit (-65°C). This part supports supply chain diversification while preserving package compatibility.

PMST2907A,115 (Nexperia USA Inc.) and MMST2907A-TP (Micro Commercial Co) offer SOT-323 alternatives with 200 mW power dissipation and active product status. Both carry automotive qualification and ROHS3 compliance.

Higher Current Capability Option:

BSR16 (Fairchild Semiconductor) provides increased collector current rating (800 mA vs. 600 mA) and power dissipation (350 mW) in SOT-23-3 packaging. This part is suitable for applications requiring enhanced current handling with package footprint change acceptance.

Not Recommended:

MMBT2907AT-TP (Micro Commercial Co) exhibits reduced transition frequency (140 MHz vs. 200 MHz) and is not suitable for applications requiring the full 200 MHz specification.

SMBT2907AE6327HTSA1 (Infineon Technologies) carries Last Time Buy status, indicating discontinued production trajectory, and is not recommended for new designs.

Frequently Asked Questions (FAQ)

Q: Can MMBT2907AT-7-F be used as a direct drop-in replacement for MMBT2907AT-7?

A: Yes. MMBT2907AT-7-F is a parametric equivalent with identical electrical specifications, SOT-523 packaging, and automotive qualification. The primary difference is active product status and ROHS3 compliance. No circuit modifications are required.

Q: What is the difference between SOT-523 and SOT-323 packages?

A: SOT-523 and SOT-323 are both surface mount packages for three-terminal transistors. SOT-323 (SC-70) has a smaller footprint than SOT-523. Electrical performance is equivalent; package selection depends on PCB layout constraints and assembly capabilities.

Q: Is MMST2907A-7-F suitable for automotive applications?

A: MMST2907A-7-F is not explicitly qualified to AEC-Q101 automotive standards in the provided specifications. For automotive applications requiring AEC-Q101 qualification, MMBT2907AT-7-F or PMST2907A,115 are appropriate selections.

Q: Why is MMBT2907AT-TP not recommended?

A: MMBT2907AT-TP operates at 140 MHz transition frequency, which is below the 200 MHz specification of the original MMBT2907AT-7. Applications requiring 200 MHz performance cannot use this part.

Q: Can BSR16 replace MMBT2907AT-7 in all applications?

A: BSR16 meets the electrical requirements with enhanced current and power ratings. However, it uses SOT-23-3 packaging instead of SOT-523, requiring PCB layout modification. Verify that the larger package footprint is acceptable for your application before substitution.

Q: What is the significance of ROHS3 compliance?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead and other hazardous materials. The original MMBT2907AT-7 is RoHS non-compliant. Most active substitutes are ROHS3 compliant, supporting environmental and regulatory requirements for new designs.

Q: Are there inventory considerations for substitute selection?

A: Yes. CMUT2907A TR PBFREE has the highest inventory availability (38,537 units), followed by MMBT2907AT-7-F (23,200 units). For long-term supply security, parts with higher inventory levels and active product status are preferable to Last Time Buy or Obsolete classifications.

Q: Can PMST2907A,115 be used in non-automotive applications?

A: Yes. PMST2907A,115 meets all electrical specifications for the MMBT2907AT-7 and is suitable for general-purpose applications. Automotive qualification is an additional capability that does not restrict use in non-automotive designs.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message