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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Diodes Incorporated MMST2907AQ-7

Name: MMST2907AQ-7
Brand: Diodes Incorporated
SKU: MMST2907AQ-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MMST2907AQ-7

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

Package:: SC-70, SOT-323

Datasheet:: MMST2907AQ-7.pdf

Description:: TRANS PNP 60V 0.6A SOT-323

Quantity:: RFQ Add To RFQ list

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Inventory:516

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Product details

Overview

MMST2907AQ-7 from Diodes Incorporated is a 60V PNP small-signal transistor in SOT323 package, rated for -600mA collector current, -60V V_CEO, and 200mW power dissipation, used in automotive-grade switching and amplification circuits such as load control in body electronics modules.

For engineers reviewing the MMST2907AQ-7 datasheet, MMST2907AQ-7 pinout, MMST2907AQ-7 application, or MMST2907AQ-7 equivalent, key selection criteria include guaranteed AEC-Q101 qualification, V_CE(SAT) ≤ -1.6V at -500mA/-50mA drive, h_FE range of 50–300 across IC = -100µA to -500mA, and ESD HBM rating of 4kV.

Technical Context

This PNP bipolar junction transistor uses epitaxial planar die construction for stable gain and low leakage, with breakdown voltages BV_CBO and BV_CEO both rated at -60V and VEBO at -5V. Its thermal resistance R_θJA is 625°C/W under standard JEDEC mounting conditions.

Switching performance includes t_ON ≤ 45ns, t_OFF ≤ 100ns, and f_T ≥ 200MHz at V_CE = -20V and I_C = -50mA, supporting medium-speed digital and analog signal control in space-constrained automotive PCBs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	-60V - supports rail-to-rail operation in 48V and 24V automotive systems
I_C	-600mA - drives medium-power loads like relays, LEDs, and small solenoids
P_D	200mW - limits continuous dissipation without heatsinking in SOT323 footprint
h_FE	50–300 - enables reliable biasing across production lots and temperature (-55°C to +150°C)
V_CE(SAT)	-1.6V max at I_C = -500mA/I_B = -50mA - ensures low conduction loss in saturated switch mode
f_T	200MHz - supports high-frequency switching in PWM dimming and signal inversion
ESD HBM	4000V - meets automotive handling robustness requirements per JESD22-A114

Pinout & Package

Package: SOT323 - ultra-small surface-mount plastic case (2.15 × 2.10 × 0.95 mm), moisture sensitivity level 1, matte tin-plated leads, weight ≈ 0.006 g.

Pin/Terminal	Circuit Role	Design Meaning
Emitter (E)	Current source terminal	Connected to higher potential rail; sets reference for base-emitter bias and current sourcing path
Base (B)	Control input	Receives negative drive current to turn on; requires ~50mA for full saturation at 500mA load
Collector (C)	Current sink terminal	Connected to load and ground return; carries full switched current with minimal voltage drop

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications including engine control, lighting, and body electronics
Lead-free & Halogen-free	Complies with RoHS 2 and "Green" standards (<900ppm Br/Cl, <1000ppm Sb)
Ultra-small SOT323 footprint	Enables high-density routing in compact ECUs and ADAS sensor modules
High V_CEO and low leakage	BV_CEO = -60V and ICEX ≤ -50nA at +125°C ensure reliability in noisy 12V/24V systems

Applications

Automotive LED Tail Light Control

Engine Control Unit (ECU) Signal Inversion

Use Scenario: Switching 12V LED arrays in rear combination lamps with PWM dimming.

IC Role / Device Role / Timing Role: PNP switch sourcing current from battery rail to LED anodes.

Use Value: V_CE(SAT) ≤ -1.6V at 500mA minimizes heat rise in sealed lamp housings; AEC-Q101 ensures lifetime reliability.

Use Scenario: Inverting logic-level signals between microcontroller GPIO and high-side driver inputs.

IC Role / Device Role / Timing Role: Level-shifting and polarity inversion stage in ECU timing-critical paths.

Use Value: t_OFF ≤ 100ns and f_T ≥ 200MHz support 5–10 MHz signal edge fidelity without added propagation delay.

Body Control Module (BCM) Relay Driver

Infotainment System Power Sequencing

Use Scenario: Driving 12V coil relays for door lock actuators and window lift motors.

IC Role / Device Role / Timing Role: High-current saturated switch interfacing MCU outputs to relay coils.

Use Value: I_C = -600mA rating handles relay inrush (typically 200–400mA), while -60V V_CEO withstands load dump transients.

Use Scenario: Enabling/disabling auxiliary power rails during boot-up and sleep transitions.

IC Role / Device Role / Timing Role: Controlled power gate for low-noise analog subsystems (e.g., audio codecs).

Use Value: Low ICEX (≤ -50nA at +125°C) prevents unintended wake-up; h_FE stability ensures consistent turn-on threshold across temperature.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP small-signal transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC807-40Q-7	V_CEO = -45V, h_FE = 250–630, same SOT323 package, AEC-Q101 qualified	Limited to 45V systems; higher gain but lower breakdown margin	Preferred where tighter h_FE tolerance and lower V_CE(SAT) (~-0.7V) are critical, and 45V max operating voltage suffices
PN2907A-RTK/P	V_CEO = -60V, I_C = -600mA, TO-92 package, non-automotive grade	Through-hole mounting only; no AEC-Q101 or PPAP support	Suitable for prototyping or industrial non-automotive designs requiring identical electrical specs but not automotive compliance

Compared with BC807-40Q-7 and PN2907A-RTK/P, MMST2907AQ-7 uniquely balances 60V breakdown, AEC-Q101 qualification, and SOT323 miniaturization-making it optimal for production automotive PCBs where space, reliability, and system voltage headroom are jointly constrained.

Availability

MMST2907AQ-7 is available at Aetrix Electronics and suitable for automotive lighting control, engine management signal conditioning, and body electronics power sequencing requiring stable component supply across extended temperature and lifecycle demands.

Supply support for MMST2907AQ-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and consumer markets.

The MMST2907AQ-7 belongs to Diodes' AEC-Q101-qualified small-signal transistor product line, engineered specifically for space-constrained, thermally demanding automotive control nodes.

FAQ

What does the 'Q' suffix in MMST2907AQ-7 signify?

The 'Q' denotes automotive qualification per AEC-Q101 standards and PPAP capability. It confirms the device has undergone stress testing for temperature cycling, humidity, mechanical shock, and long-term reliability under automotive operating conditions (−40°C to +125°C junction temperature). This differs from the standard MMST2907A-7, which lacks formal automotive certification.

Can MMST2907AQ-7 replace MMST2222A in a circuit?

No-it is the complementary PNP to the NPN MMST2222A, not a direct replacement. Swapping them would invert logic polarity and reverse current flow direction. They are designed for paired use in push-pull or differential configurations, not interchangeably. Electrical parameters (e.g., V_CEO, I_C) are matched, but polarity and biasing requirements differ fundamentally.

Is the SOT323 package compatible with reflow soldering per J-STD-020?

Yes-the MMST2907AQ-7 is rated Moisture Sensitivity Level 1 (MSL-1), meaning it can be stored indefinitely at ≤30°C/60% RH and subjected to standard Pb-free reflow profiles (peak 260°C) without baking. Its matte tin-plated leads meet MIL-STD-202 Method 208 for solderability, and the package outline conforms to JEDEC MO-203AA.

How does its h_FE variation affect bias design?

h_FE ranges from 50 to 300 depending on I_C and V_CE; at I_C = -10mA, it is 100–300, but drops to 50 at I_C = -500mA. Designers must size base drive (e.g., I_B ≥ I_C/20 for forced β = 20) to guarantee saturation across process and temperature extremes-not rely on typical h_FE values alone.

MMST2907AQ-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: SC-70, SOT-323

Packaging:: Tape & Reel (TR)

Product Status:: Active

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

Current - Collector Cutoff (Max):: 50nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 150mA, 10V

Power - Max:: 200 mW

Frequency - Transition:: 200MHz

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-323

MMST2907AQ-7 FAQ

1.How can I place an order for MMST2907AQ-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for MMST2907AQ-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MMST2907AQ-7 reliable?

The price and inventory of MMST2907AQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMST2907AQ-7 is usually 5 days.

3.What payment methods are accepted for MMST2907AQ-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMST2907AQ-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MMST2907AQ-7?

MMST2907AQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MMST2907AQ-7 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MMST2907AQ-7?

For technical support, including MMST2907AQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMST2907AQ-7 requirements.

6.How does Aetrix verify that MMST2907AQ-7 is sourced from the original manufacturer or authorized distributors?

All MMST2907AQ-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MMST2907AQ-7 meets industry standards.

7.What is the process for return or replacement of MMST2907AQ-7?

All MMST2907AQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with MMST2907AQ-7, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MMST2907AQ-7 part is unused and in its original packaging.

Return procedure for MMST2907AQ-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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