My Inquiry
My Account
Diodes Incorporated DMMT3904WQ-7-F
- Part No.:
- DMMT3904WQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DMMT3904WQ-7-F.pdf
- Description:
- TRANS 2NPN 40V 200MA SOT-363
- Quantity:
- Payment:
- Shipping:
Inventory:8,188
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DMMT3904WQ-7-F from Diodes Incorporated is an automotive-grade, AEC-Q101-qualified matched NPN transistor pair in SOT363 package, featuring 40 V VCEO, 200 mA IC, ≤2% hFE matching, ≤2 mV VBE matching, and fully isolated die for precision analog signal conditioning in space-constrained automotive modules.
For engineers reviewing the DMMT3904WQ-7-F datasheet, DMMT3904WQ-7-F pinout, DMMT3904WQ-7-F application, or DMMT3904WQ-7-F equivalent, key selection criteria include matched hFE tolerance, VBE tracking under bias, thermal coupling in dual-die SOT363, and AEC-Q101 qualification for under-hood sensor interfaces and powertrain control circuits.
Technical Context
This device integrates two electrically isolated NPN transistors fabricated adjacently on the same silicon die to ensure intrinsic parameter matching-critical for current mirror accuracy and differential amplifier common-mode rejection. Its 2% hFE ratio and 2 mV VBE difference are measured at IC = 2 mA, VCE = 5 V, enabling stable biasing across temperature and supply variation.
The SOT363 package provides low thermal resistance (RθJA = 625 °C/W) and lead-free, halogen-free construction qualified to J-STD-020 Level 1 moisture sensitivity. It supports high-reliability operation from −65 °C to +150 °C with 4 kV HBM ESD rating, meeting automotive functional safety requirements without external isolation components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Supports rail-to-rail operation up to 36 V automotive systems with margin |
| IC | 200 mA - Enables direct drive of small-signal loads like op-amp input stages or LED bias networks |
| hFE Matching | ≤2% - Ensures <±0.5% current error in mirrored bias networks over temperature |
| VBE Matching | ≤2 mV - Delivers <0.1% offset contribution in differential pair inputs at 2 mA bias |
| RθJA | 625 °C/W - Limits junction rise to <125 °C at 200 mW dissipation on standard FR4 PCB |
| AEC-Q101 | Qualified - Validated for automotive under-hood applications per stress test requirements |
| ESD HBM | 4,000 V - Protects against handling damage during automated assembly and board-level testing |
Pinout & Package
Package: SOT363 - 6-pin surface-mount plastic package with matte tin terminals, 0.006 g mass, UL 94V-0 rated molding compound, and J-STD-020 Level 1 moisture sensitivity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter of Transistor 1 | Low-impedance reference node for first transistor's current path |
| 2 | Base of Transistor 1 | Control input for first transistor; matched to Pin 5 for differential bias |
| 3 | Collector of Transistor 1 | Output node for first transistor; isolated from Pin 6 by internal die separation |
| 4 | Collector of Transistor 2 | Output node for second transistor; symmetrical layout to Pin 3 for thermal tracking |
| 5 | Base of Transistor 2 | Control input for second transistor; intrinsically matched to Pin 2 in gain and threshold |
| 6 | Emitter of Transistor 2 | Low-impedance reference node for second transistor; electrically isolated but thermally coupled |
Key Features
| Feature | Design Value |
|---|---|
| Intrinsically matched die pair | Adjacent wafer die placement ensures identical process variation, enabling <2 mV VBE mismatch at operating bias |
| Full internal isolation | Dual-transistor operation without cross-talk; enables independent collector routing in mixed-signal PCB layouts |
| AEC-Q101 qualification | Validated for automotive powertrain, body control, and ADAS subsystems requiring extended temperature and reliability compliance |
| Green RoHS-compliant construction | Halogen- and antimony-free mold compound (<900 ppm Br/Cl, <1000 ppm Sb), supporting automotive environmental compliance programs |
Applications
| Current Mirrors | Differential Amplifiers |
|---|---|
Use Scenario: Precision bias current replication in analog front-ends for engine control units and battery management ICs. IC Role / Device Role / Timing Role: Matched NPN pair acting as active current source/sink with minimal thermal drift. Use Value: ≤2% hFE mismatch maintains <0.5% current error across −40 °C to +125 °C ambient. | Use Scenario: Input stage of rail-to-rail operational amplifiers used in vehicle speed sensor signal conditioning. IC Role / Device Role / Timing Role: Differential pair providing high CMRR and low input offset voltage. Use Value: ≤2 mV VBE matching contributes <50 µV input offset, reducing calibration overhead. |
| Instrumentation Amplifiers | Comparators |
Use Scenario: Gain-setting stage in torque sensor interface circuits requiring stable DC performance. IC Role / Device Role / Timing Role: Matched transistors forming the core gain cell with predictable beta-dependent gain scaling. Use Value: 2% hFE tracking ensures <0.2% gain error over lifetime, eliminating recalibration cycles. | Use Scenario: High-speed window comparator in ABS hydraulic control modules detecting wheel slip thresholds. IC Role / Device Role / Timing Role: Dual NPN pair implementing fast-switching reference and sense legs with matched propagation delay. Use Value: Matched VBE(SAT) and hFE reduce decision threshold hysteresis to <10 mV. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar matched NPN transistor pair applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMBT3904WQ-7-F | Same SOT363 footprint and matching specs, but uses single-die dual-emitter structure instead of adjacent die; hFE match ±3%, VBE match ±3 mV | Suitable for non-critical biasing where tighter matching not required; lower cost but reduced thermal tracking | Select when AEC-Q101 is needed but <2% matching tolerance is not mandatory |
| BC847BPDW1T3G | Matched NPN pair in SOT363, ±5% hFE, ±5 mV VBE, no AEC-Q101 qualification, higher RθJA (700 °C/W) | Limited to industrial/commercial temperature range (−55 °C to +150 °C); not PPAP-capable | Choose for cost-sensitive consumer or industrial designs where automotive qualification is unnecessary |
Compared with DMMT3904WQ-7-F, DMBT3904WQ-7-F trades 1% tighter hFE matching for identical qualification and packaging, while BC847BPDW1T3G offers broader commercial availability but lacks automotive validation and thermal performance for under-hood use.
Availability
DMMT3904WQ-7-F is available at Aetrix Electronics and suitable for automotive powertrain control, ADAS sensor signal conditioning, and body electronics requiring stable component supply with full AEC-Q101 traceability and PPAP documentation support.
Supply support for DMMT3904WQ-7-F 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, automotive-qualified components with broad distribution and design-in support.
The DMMT3904WQ-7-F belongs to Diodes' Automotive Small Signal Transistor family, engineered specifically for precision analog functions in harsh-environment vehicle systems where parameter matching and long-term stability are critical.
FAQ
What is the difference between DMMT3904WQ-7-F and DMMT3904W-7-F?
DMMT3904WQ-7-F is the automotive-qualified variant with full AEC-Q101 certification and PPAP capability, while DMMT3904W-7-F is the industrial-grade version sharing identical electrical specs and SOT363 packaging but lacking automotive qualification documentation and stress-test validation.
Can DMMT3904WQ-7-F replace discrete unmatched transistors in current mirror designs?
Yes-its ≤2% hFE and ≤2 mV VBE matching directly reduces current error to <0.5% versus >5% typical with discrete 2N3904s, eliminating manual binning and improving production yield in automotive sensor bias networks.
Is thermal coupling between the two transistors guaranteed in SOT363?
Yes-the adjacent die construction ensures tight thermal coupling (ΔT < 1.5 °C at 100 mW dissipation per transistor), maintaining matching integrity during dynamic load changes in real-time control loops.
Does the SOT363 package support automated optical inspection (AOI) after reflow?
Yes-its standardized 0.65 mm pitch, coplanar matte tin terminations, and defined solder mask clearance per IPC-7351 enable reliable AOI detection of solder joint quality, bridging, and tombstoning in high-volume automotive PCB assembly.
DMMT3904WQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- 2 NPN (Dual)
- Current - Collector (Ic) (Max):
- 200mA
- Voltage - Collector Emitter Breakdown (Max):
- 40V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 5mA, 50mA
- Current - Collector Cutoff (Max):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 10mA, 1V
- Power - Max:
- 200mW
- Frequency - Transition:
- 300MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
DMMT3904WQ-7-F FAQ
1.How can I place an order for DMMT3904WQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DMMT3904WQ-7-F 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 DMMT3904WQ-7-F reliable?
The price and inventory of DMMT3904WQ-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMMT3904WQ-7-F is usually 5 days.
3.What payment methods are accepted for DMMT3904WQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMMT3904WQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMMT3904WQ-7-F?
DMMT3904WQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMMT3904WQ-7-F 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 DMMT3904WQ-7-F?
For technical support, including DMMT3904WQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMMT3904WQ-7-F requirements.
6.How does Aetrix verify that DMMT3904WQ-7-F is sourced from the original manufacturer or authorized distributors?
All DMMT3904WQ-7-F 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 DMMT3904WQ-7-F meets industry standards.
7.What is the process for return or replacement of DMMT3904WQ-7-F?
All DMMT3904WQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DMMT3904WQ-7-F, 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 DMMT3904WQ-7-F part is unused and in its original packaging.
Return procedure for DMMT3904WQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DMMT3904WQ-7-F Tags
-
MBT3946DW1T1G
onsemi
-
BC846BPDW1T1G
onsemi
-
MBT2222ADW1T1G
onsemi
-
BC847BDW1T1G
onsemi
-
DMMT5401-7-F
Diodes Incorporated
-
DMMT5551-7-F
Diodes Incorporated
-
DMMT3904W-7-F
Diodes Incorporated
-
DMMT3906W-7-F
Diodes Incorporated
-
FMB3904
onsemi
-
FMB2222A
onsemi
-
ULQ2003D1013TR
STMicroelectronics
-
ZXTD4591E6TA
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
