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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Bipolar Transistor Arrays

Diodes Incorporated DMMT3906W-7-F

Name: DMMT3906W-7-F
Brand: Diodes Incorporated
SKU: DMMT3906W-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMMT3906W-7-F

Manufacturer:: Diodes Incorporated

Category:: Bipolar Transistor Arrays

Package:: 6-TSSOP, SC-88, SOT-363

Datasheet:: DMMT3906W-7-F.pdf

Description:: TRANS 2PNP 40V 200MA SOT-363

Quantity:: RFQ Add To RFQ list

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Inventory:119,635

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Product details

Overview

DMMT3906W-7-F from Diodes Incorporated is a matched dual PNP small-signal transistor pair in SOT363 package, rated for -40V V_CEO, -200mA I_C, and 2% h_FE matching, designed for precision current mirroring and differential amplifier front-ends in industrial instrumentation.

For engineers reviewing the DMMT3906W-7-F datasheet, DMMT3906W-7-F pinout, DMMT3906W-7-F application, or DMMT3906W-7-F equivalent, key selection criteria include intrinsic die-matching tolerance, V_BE tracking (≤2mV), thermal coupling in shared package, and AEC-Q101 qualification for automotive sensor signal conditioning.

Technical Context

This device integrates two adjacent PNP transistors on a single silicon die to ensure tight parametric matching-2% h_FE ratio and ≤2mV V_BE difference at I_C = -2mA, V_CE = -5V-enabling high-accuracy analog functions without external trimming.

Its fully isolated internal structure maintains independent collector-emitter paths while sharing thermal mass, supporting stable operation in differential pairs where common-mode rejection depends on matched junction characteristics and temperature drift.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	-40 V - Maximum safe collector-emitter voltage before breakdown in common-emitter configuration
I_C	-200 mA - Continuous collector current rating per transistor, defining usable dynamic range
h_FE Matching	2% - Ratio tolerance between transistors' DC current gains, critical for mirror accuracy
V_BE Matching	≤2 mV - Absolute base-emitter voltage difference at matched bias, enabling <0.1% input offset in diff-amps
P_D	200 mW - Total power dissipation limit for both transistors under still-air conditions on standard PCB
f_T	250 MHz - Current gain–bandwidth product, supporting high-frequency differential amplification up to ~100 MHz
R_θJA	625 °C/W - Junction-to-ambient thermal resistance, indicating thermal sensitivity in compact layouts

Pinout & Package

SOT363 is a 6-pin surface-mount plastic package with gull-wing leads, measuring 2.15 mm × 2.10 mm × 1.00 mm, optimized for automated placement and reflow soldering on high-density PCBs.

Pin/Terminal	Circuit Role	Design Meaning
C1	Collector of Transistor 1	Primary output node for first PNP; electrically isolated but thermally coupled to C2
E1	Emitter of Transistor 1	Current source terminal for first transistor; tied to common reference or load
B1	Base of Transistor 1	Control input for first transistor; bias determines operating point and matching fidelity
B2	Base of Transistor 2	Independent control input for second transistor; enables differential or mirrored bias schemes
E2	Emitter of Transistor 2	Second current source terminal; used for active loads or feedback networks
C2	Collector of Transistor 2	Output node for second PNP; shares thermal environment with C1 for drift tracking

Key Features

Feature	Design Value
Intrinsic die-matching	Adjacent wafer-die construction ensures correlated process variation, reducing mismatch-induced offset
V_BE tracking	≤2 mV difference at I_C = -2 mA enables sub-0.05% input-referred error in precision current mirrors
AEC-Q101 qualification	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD (HBM 4 kV)
Thermal coupling	Shared package body provides <0.5°C inter-transistor ΔT under steady-state bias, improving drift cancellation

Applications

Current Mirror Circuits

Differential Amplifiers

Use Scenario: Precision bias current generation for op-amp input stages or DAC reference cells.

IC Role / Device Role / Timing Role: Dual PNP pair acts as active current source/sink with matched h_FE and V_BE to minimize ratio error.

Use Value: Achieves <0.5% current transfer ratio error over -40°C to +125°C due to intrinsic matching and thermal coupling.

Use Scenario: Input stage of rail-to-rail operational amplifiers requiring low input offset and high CMRR.

IC Role / Device Role / Timing Role: Matched PNP pair forms emitter-coupled differential pair with common-emitter degeneration.

Use Value: Enables <100 µV input offset voltage and >85 dB CMRR at 1 kHz without laser trimming.

Instrumentation Amplifiers

Comparator Input Stages

Use Scenario: Front-end gain stage in medical ECG or industrial pressure sensor signal chains.

IC Role / Device Role / Timing Role: Provides matched gain-setting transistors in three-op-amp IA topology with common-mode rejection enhancement.

Use Value: Reduces gain error to <0.1% and improves temperature coefficient of gain to <10 ppm/°C.

Use Scenario: High-speed comparator with hysteresis where input stage matching defines trip-point stability.

IC Role / Device Role / Timing Role: Dual PNP pair implements precision reference current and threshold-setting network.

Use Value: Limits hysteresis window drift to <±1.5 mV across full industrial temperature range.

Equivalent & Alternatives

The following parts are listed as comparable options for similar matched PNP transistor pair applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMBT3906W-7-F	Single PNP transistor in same SOT363 package; no matching or isolation between devices	Not suitable for current mirroring or differential pairs requiring tracking	Select only when discrete biasing or non-matched amplification is required
BCM847DS,132	Matched NPN pair (not PNP); h_FE match ±3%, V_BE match ≤3 mV; same SOT363 footprint	Requires circuit polarity inversion; unsuitable for PNP-based current sinks or level-shifting topologies	Use only in NPN-complementary designs where supply architecture permits

Compared with DMMT3906W-7-F, DMBT3906W-7-F lacks matching and thermal coupling, making it inappropriate for precision analog functions, while BCM847DS,132 offers comparable matching specs but inverted polarity-requiring redesign of bias networks and signal flow.

Availability

DMMT3906W-7-F is available at Aetrix Electronics and suitable for current mirror circuits, differential amplifiers, instrumentation amplifiers, and comparator input stages requiring stable component supply and guaranteed AEC-Q101 compliance.

Supply support for DMMT3906W-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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

The DMMT3906W belongs to Diodes' precision bipolar transistor family, engineered specifically for high-fidelity analog signal conditioning in automotive, industrial, and medical applications where parameter matching and thermal stability are critical.

FAQ

What does "intrinsically matched" mean for DMMT3906W-7-F?

"Intrinsically matched" means both PNP transistors are fabricated on adjacent die locations within the same wafer batch, minimizing process variation effects. This yields guaranteed 2% h_FE ratio and ≤2 mV V_BE difference at I_C = -2 mA, V_CE = -5 V-verified during final test, not statistical estimation.

Is DMMT3906W-7-F suitable for automotive applications?

Yes-DMMT3906W-7-F is qualified to AEC-Q101 standards and PPAP-capable. It undergoes stress testing including HTGB, TC, and HTRB, and is rated for operation from -40°C to +150°C junction temperature, meeting requirements for engine control, body electronics, and ADAS sensor interfaces.

How does the SOT363 package affect thermal performance in matched-pair operation?

The SOT363 package provides shared thermal mass between transistors, resulting in <0.5°C inter-device temperature difference under equal bias. This minimizes thermal-induced V_BE drift mismatch, directly improving long-term offset stability in current mirrors and differential amplifiers without external heatsinking.

Can DMMT3906W-7-F replace discrete SOT23 PNP transistors in existing designs?

Yes-but pin compatibility must be verified: SOT363 has six pins versus SOT23's three. The DMMT3906W-7-F requires PCB layout revision to accommodate C1/E1/B1/B2/E2/C2 routing. Electrical substitution is valid only when both transistors are used; using only one half forfeits matching benefits and violates thermal design assumptions.

DMMT3906W-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 PNP (Dual) Matched Pair

Current - Collector (Ic) (Max):: 200mA

Voltage - Collector Emitter Breakdown (Max):: 40V

Vce Saturation (Max) @ Ib, Ic:: 400mV @ 5mA, 50mA

Current - Collector Cutoff (Max):: -

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 10mA, 1V

Power - Max:: 200mW

Frequency - Transition:: 250MHz

Operating Temperature:: -65°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-363

DMMT3906W-7-F FAQ

1.How can I place an order for DMMT3906W-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for DMMT3906W-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 DMMT3906W-7-F reliable?

The price and inventory of DMMT3906W-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 DMMT3906W-7-F is usually 5 days.

3.What payment methods are accepted for DMMT3906W-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMMT3906W-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMMT3906W-7-F?

DMMT3906W-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMMT3906W-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 DMMT3906W-7-F?

For technical support, including DMMT3906W-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMMT3906W-7-F requirements.

6.How does Aetrix verify that DMMT3906W-7-F is sourced from the original manufacturer or authorized distributors?

All DMMT3906W-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 DMMT3906W-7-F meets industry standards.

7.What is the process for return or replacement of DMMT3906W-7-F?

All DMMT3906W-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DMMT3906W-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 DMMT3906W-7-F part is unused and in its original packaging.

Return procedure for DMMT3906W-7-F:

1.Submit a request within 90 days.

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

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