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Diodes Incorporated MMDT3906Q-7
- Part No.:
- MMDT3906Q-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMDT3906Q-7.pdf
- Description:
- TRANS 2PNP 40V 200MA SOT-363
- Quantity:
- Payment:
- Shipping:
Inventory:7,518
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Product details
Overview
MMDT3906Q from Diodes Incorporated is a dual PNP small-signal transistor in SOT363 package, rated for -40V VCEO, -200mA IC, and 200mW power dissipation. It delivers hFE = 60–300 at IC = -100µA to -100mA and supports switching and medium-power amplification in automotive and industrial control circuits.
For engineers reviewing the MMDT3906Q datasheet, MMDT3906Q pinout, MMDT3906Q application, or MMDT3906Q equivalent, key selection criteria include its AEC-Q101 qualification, complementary pairing with MMDT3904Q, ultra-small SOT363 footprint, and verified -40V breakdown voltage under pulsed conditions.
Technical Context
The MMDT3906Q integrates two identical epitaxial planar PNP transistors in a single 6-pin SOT363 package, sharing no internal connection between devices. Each transistor operates independently with fully isolated junctions, supporting dual-channel biasing, differential pair configuration, or redundant switching paths.
Its design targets high-reliability environments: thermal resistance RθJA = 625°C/W enables stable operation up to +150°C junction temperature, while ESD ratings of 4kV HBM and 1kV CDM meet stringent automotive board-level robustness requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -40 V - Ensures safe operation in 24V automotive supply rails with margin against transients. |
| IC | -200 mA - Supports medium-current loads such as LED drivers or relay coils without external buffering. |
| hFE | 60–300 - Provides predictable DC gain across wide current range (-100µA to -100mA), enabling stable bias networks. |
| VCE(sat) | -0.25 V @ -10mA/-1mA - Minimizes conduction loss in saturated-switch applications like logic-level translators. |
| fT | 250 MHz - Enables use in low-noise RF preamplifiers or high-speed digital interface conditioning up to ~100MHz. |
| NF | 4.0 dB @ -100µA - Confirmed noise performance suitable for low-level analog signal amplification stages. |
| ESD HBM | 4000 V - Meets JEDEC Class 3A, reducing need for external protection in assembly-line handling and PCB integration. |
Pinout & Package
Package: SOT363 - ultra-compact 6-pin surface-mount package (2.15 × 2.10 × 0.95 mm), molded green compound, matte tin terminals, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter of Transistor 1 | Primary current sink node for first PNP; tied to local ground reference in common-emitter configurations. |
| 2 | Base of Transistor 1 | Control input requiring negative bias relative to emitter; compatible with 3.3V/5V logic via resistor divider. |
| 3 | Collector of Transistor 1 | Output node connected to load or pull-up; electrically isolated from second transistor's collector. |
| 4 | Emitter of Transistor 2 | Independent emitter terminal for second PNP; allows separate biasing or differential pair implementation. |
| 5 | Base of Transistor 2 | Second independent control input; enables dual-gated functions such as push-pull drivers or mirrored current sources. |
| 6 | Collector of Transistor 2 | Second output node; no internal connection to Pin 3-supports true dual-channel operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics with PPAP support. |
| Dual isolated PNP structure | Enables space-efficient duplication of switching or amplification functions without discrete component doubling. |
| Green, halogen-free construction | Meets IEC 61249-2-21 and RoHS 3 (2015/863/EU) with Br+Cl <1500 ppm and Sb <1000 ppm. |
| Low VCE(sat) at high IC | -0.40 V @ -50mA/-5mA ensures <15 mW conduction loss per transistor in saturated switch mode. |
| High fT with low CIBO | 250 MHz gain-bandwidth with only 10 pF input capacitance enables stable high-frequency bias networks. |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Driving multiple 12V solenoid valves and status LEDs in door lock and lighting control units. IC Role / Device Role / Timing Role: Dual PNP switch providing independent low-side sinking for valve activation and LED current limiting. Use Value: SOT363 footprint reduces PCB area by 40% vs. two discrete SOT23 transistors; AEC-Q101 rating eliminates requalification effort. |
Use Scenario: Amplifying low-level thermocouple or bridge sensor outputs in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Dual PNP configured as matched emitter followers for impedance transformation and DC-coupled gain staging. Use Value: Tight hFE spread (60–300) and low NF (4.0 dB) preserve signal integrity; -55°C to +150°C operating range ensures field reliability. |
| Consumer Appliance Motor Driver | Medical Diagnostic Equipment Bias Network |
|
Use Scenario: Controlling brushed DC fan motors and indicator backlighting in HVAC control panels. IC Role / Device Role / Timing Role: Dual PNP used in complementary Darlington pre-driver stage for N-channel MOSFET gate control. Use Value: VCEO = -40V withstands motor back-EMF spikes; 200mW PD supports continuous 100mA drive without derating. |
Use Scenario: Providing precision bias currents for op-amp input stages and ADC reference buffers in portable ultrasound units. IC Role / Device Role / Timing Role: Dual PNP configured as matched current sources for rail-to-rail input stage tail current generation. Use Value: Low base leakage (<50 nA) and stable hFE over temperature ensure sub-0.1% gain drift; green packaging meets IEC 60601-1 material compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual PNP transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847BPDW1T1G | Lower VCEO (-45V), higher hFE (200–450), but only 300mW total PD and non-AEC-Q101 rated. | Not approved for automotive safety-critical systems; requires additional qualification for IATF 16949 production. | Select when cost-sensitive industrial designs prioritize gain linearity over automotive compliance. |
| MBT3906DW1T1G | Same die as MMDT3906Q but in SOT363 with different marking; identical electrical specs and AEC-Q101 qualification. | No functional difference; differs only in date code format and reel packaging (3,000 vs. 10,000 pcs). | Direct drop-in alternative with identical performance-choose based on distributor stock and lead time. |
Compared with BC847BPDW1T1G and MBT3906DW1T1G, the MMDT3906Q uniquely combines AEC-Q101 certification, guaranteed -40V breakdown, and production traceability in IATF 16949 facilities-making it the only choice for Tier-1 automotive BOMs requiring PPAP documentation and zero-defect manufacturing.
Availability
MMDT3906Q is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC analog front-ends, and medical diagnostic equipment requiring stable component supply, long-term lifecycle assurance, and full RoHS/Green compliance.
Supply support for MMDT3906Q 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 integrated circuits, headquartered in Plano, Texas, with design centers across Asia and manufacturing in IATF 16949-certified facilities.
The MMDT3906Q belongs to Diodes' automotive-qualified small-signal transistor portfolio, engineered specifically for space-constrained, high-reliability applications where dual-channel PNP functionality, AEC-Q101 validation, and green packaging are mandatory.
FAQ
Is MMDT3906Q pin-compatible with MMDT3904Q?
No-MMDT3906Q is a dual PNP transistor, while MMDT3904Q is a dual NPN. Their pinouts are complementary: Pin 1 (E1), Pin 2 (B1), Pin 3 (C1), Pin 4 (E2), Pin 5 (B2), Pin 6 (C2) are identical in layout but opposite polarity. Interchange requires circuit-level redesign to accommodate PNP vs. NPN biasing and current flow direction.
What is the maximum continuous collector current per transistor?
The absolute maximum continuous collector current is -200mA per transistor, as specified in the Absolute Maximum Ratings table. Derating is required above +25°C ambient: power dissipation drops linearly to zero at +150°C, governed by RθJA = 625°C/W and the 200mW total device limit.
Does MMDT3906Q support DC-coupled amplifier configurations?
Yes-the device exhibits stable hFE down to -100µA and low base leakage (<50nA), enabling precision DC-coupled applications such as instrumentation amplifier input stages and current mirror bias networks. Its -6V VEBO rating supports emitter-base reverse bias up to -5.5V without degradation.
How does the SOT363 package affect thermal performance?
The SOT363 package delivers RθJA = 625°C/W on a standard 1oz copper FR4 PCB with minimum pad layout. This means a 200mW power dissipation raises junction temperature by 125°C above ambient-so operation at full power is limited to ≤+25°C ambient unless heatsinking or enhanced layout (e.g., thermal vias) is applied.
MMDT3906Q-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- 2 PNP (Dual)
- Current - Collector (Ic) (Max):
- 200mA
- Voltage - Collector Emitter Breakdown (Max):
- 40V
- Vce Saturation (Max) @ Ib, Ic:
- 400mV @ 5mA, 50mA
- Current - Collector Cutoff (Max):
- 50nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 10mA, 1V
- Power - Max:
- 200mW
- Frequency - Transition:
- 250MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
MMDT3906Q-7 FAQ
1.How can I place an order for MMDT3906Q-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMDT3906Q-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 MMDT3906Q-7 reliable?
The price and inventory of MMDT3906Q-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMDT3906Q-7 is usually 5 days.
3.What payment methods are accepted for MMDT3906Q-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMDT3906Q-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMDT3906Q-7?
MMDT3906Q-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMDT3906Q-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 MMDT3906Q-7?
For technical support, including MMDT3906Q-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMDT3906Q-7 requirements.
6.How does Aetrix verify that MMDT3906Q-7 is sourced from the original manufacturer or authorized distributors?
All MMDT3906Q-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 MMDT3906Q-7 meets industry standards.
7.What is the process for return or replacement of MMDT3906Q-7?
All MMDT3906Q-7 units undergo pre-shipment inspection (PSI). If there is an issue with MMDT3906Q-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 MMDT3906Q-7 part is unused and in its original packaging.
Return procedure for MMDT3906Q-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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