MMBT2907A Equivalent & Substitute Parts

Part Overview

The MMBT2907A is a PNP bipolar junction transistor (BJT) manufactured by Diotec Semiconductor in SOT-23-3 surface mount packaging. This device is rated for 60V collector-emitter breakdown voltage and 600mA maximum collector current, with a transition frequency of 200MHz and maximum power dissipation of 250mW. The part is currently in Active product status with 305,200 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative manufacturers are required for supply chain diversification, or when design requirements necessitate different electrical or mechanical characteristics within acceptable operating parameters.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Voltage - Collector Emitter Breakdown (Max)	60	V
Current - Collector (Ic) (Max)	600	mA
Vce Saturation (Max) @ Ib, Ic	1.6V @ 50mA, 500mA	V
DC Current Gain (hFE) (Min) @ Ic, Vce	100 @ 150mA, 10V	—
Power - Max	250	mW
Frequency - Transition	200	MHz
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	SOT-23-3 (TO-236)	—

Substitute Part Grouping Explanation

Substitution of the MMBT2907A is determined by the following critical parameters:

Electrical Compatibility Requirements:

Transistor type must be PNP
Collector-emitter breakdown voltage must be greater than or equal to 60V
Maximum collector current must be greater than or equal to 600mA
Vce saturation characteristics must be compatible with circuit requirements
DC current gain (hFE) must meet or exceed 100 at specified conditions
Transition frequency must be 200MHz or greater

Mechanical Compatibility Requirements:

Surface mount packaging in SOT-23-3, TO-236, or equivalent footprint
Pin configuration must match TO-236-3 standard

Substitution Categories:

Direct Equivalents meet all electrical parameters identically to the MMBT2907A and use compatible packaging.

Parametric Equivalents meet or exceed all critical electrical parameters but may differ in secondary characteristics such as maximum power dissipation or operating temperature range. These parts are functionally interchangeable in most applications.

Similar Substitutes meet core electrical requirements but may have reduced ratings in specific parameters (such as lower breakdown voltage or collector current). These require circuit-level evaluation.

Parameter Comparison

Part Number	Manufacturer	Ic (Max) mA	Vce Breakdown (Max) V	Vce Sat @ 50mA, 500mA V	hFE (Min) @ 150mA, 10V	Power (Max) mW	Freq MHz	Temp Range °C	Package	Status
MMBT2907A	Diotec Semiconductor	600	60	1.6	100	250	200	-55 to 150	SOT-23-3	Active
MMBT2907ALT3G	onsemi	600	60	1.6	100	300	200	-55 to 150	SOT-23-3	Active
PMBT2907A,215	NXP Semiconductors	600	60	1.6	100	250	200	-55 to 150	TO-236AB	Active
PMBT2907A,235	Nexperia USA Inc.	600	60	1.6	100	250	200	-55 to 150	TO-236AB	Active
BSR16,215	Nexperia USA Inc.	600	60	1.6	100	250	200	-55 to 150	TO-236AB	Active
SST2907AT116	Rohm Semiconductor	600	60	1.6	100	350	200	-55 to 150	SST3	Not For New Designs
BCW68HE6327HTSA1	Infineon Technologies	800	45	0.7	250	330	200	-55 to 150	PG-SOT23	Last Time Buy

Engineering Selection Recommendations

Recommended Direct Equivalents (Active Status, Full Parameter Match):

MMBT2907ALT3G (onsemi) and PMBT2907A,235 (Nexperia USA Inc.) are the primary recommended substitutes. Both parts maintain identical electrical specifications to the MMBT2907A with Active product status. PMBT2907A,235 carries AEC-Q101 automotive qualification, suitable for applications requiring automotive-grade components. MMBT2907ALT3G provides higher maximum power dissipation (300mW vs. 250mW), offering additional thermal margin in power-limited applications.

Alternative Equivalent (Active Status, Automotive Qualified):

PMBT2907A,215 (NXP Semiconductors) and BSR16,215 (Nexperia USA Inc.) are functionally equivalent with identical electrical parameters and AEC-Q101 automotive qualification. These parts are suitable for automotive and industrial applications requiring certified components.

Parametric Equivalent with Reduced Ratings:

BCW68HE6327HTSA1 (Infineon Technologies) has reduced collector-emitter breakdown voltage (45V vs. 60V) and lower maximum collector current (800mA rating but with different saturation characteristics). This part is in Last Time Buy status and should not be selected for new designs. Use only when existing designs specifically require this part number.

Obsolete or Restricted Status:

SST2907AT116 (Rohm Semiconductor) is marked "Not For New Designs" and should not be used in new circuit development. This part is retained in the equivalency table for reference only when supporting legacy designs.

Frequently Asked Questions (FAQ)

Q: Can MMBT2907ALT3G directly replace MMBT2907A in all applications?

A: Yes. MMBT2907ALT3G meets or exceeds all electrical specifications of MMBT2907A. The higher maximum power dissipation (300mW vs. 250mW) provides additional thermal capability. Both parts use identical SOT-23-3 packaging and pin configuration.

Q: What is the difference between PMBT2907A,215 and PMBT2907A,235?

A: Both parts are electrically identical with the same electrical specifications. The suffix designates different packaging reels or supplier configurations. PMBT2907A,215 is supplied by NXP Semiconductors, while PMBT2907A,235 is supplied by Nexperia USA Inc. Both carry AEC-Q101 automotive qualification.

Q: Why is BCW68HE6327HTSA1 listed if it has lower voltage rating?

A: BCW68HE6327HTSA1 is included as a parametric equivalent for applications where the 45V breakdown voltage is sufficient. The part has higher collector current capability (800mA) and higher current gain (250 vs. 100). However, its Last Time Buy status makes it unsuitable for new designs. Evaluate circuit requirements before considering this substitute.

Q: Is SST2907AT116 suitable for new product designs?

A: No. SST2907AT116 is marked "Not For New Designs" by the manufacturer. This designation indicates the part is in end-of-life status. Use MMBT2907ALT3G, PMBT2907A,215, or PMBT2907A,235 for new designs.

Q: What packaging differences exist among the equivalent parts?

A: MMBT2907A and MMBT2907ALT3G use SOT-23-3 (TO-236) packaging. PMBT2907A,215, PMBT2907A,235, and BSR16,215 use TO-236AB packaging. SST2907AT116 uses SST3 packaging. All packages are mechanically and electrically compatible for standard SOT-23 footprints, though SST3 may require footprint verification for legacy designs.

Q: Are the recommended substitutes RoHS compliant?

A: MMBT2907ALT3G, PMBT2907A,215, PMBT2907A,235, and BSR16,215 are all ROHS3 compliant. The original MMBT2907A lists RoHS status as "Not applicable." Verify RoHS compliance requirements for your specific application before final part selection.

Q: Which substitute offers the best thermal performance?

A: MMBT2907ALT3G offers the highest maximum power dissipation at 300mW, compared to 250mW for MMBT2907A. SST2907AT116 provides 350mW but is restricted from new designs. For thermal-limited applications, MMBT2907ALT3G is the recommended choice among active parts.

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