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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Bipolar Transistor Arrays, Pre-Biased

Diodes Incorporated DMMT3906W-7-F-79

Name: DMMT3906W-7-F-79
Brand: Diodes Incorporated
SKU: DMMT3906W-7-F-79
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMMT3906W-7-F-79

Manufacturer:: Diodes Incorporated

Category:: Bipolar Transistor Arrays, Pre-Biased

Package:: -

Datasheet:: DMMT3906W-7-F-79.pdf

Description:: IC TRANSISTOR ARRAY SMD

Quantity:: RFQ Add To RFQ list

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Product details

Overview

DMMT3906W-7-F-79 from Diodes Incorporated is a matched dual PNP small-signal surface-mount transistor in SOT-363 package, with V_CEO = −40 V, I_C = −200 mA, P_D = 200 mW, and 2% matched h_FE/V_CE(SAT)/V_BE(SAT) tolerance. It serves as a precision current mirror or differential pair in analog front-ends of industrial sensor interfaces.

For engineers reviewing the DMMT3906W-7-F-79 datasheet, DMMT3906W-7-F-79 pinout, DMMT3906W-7-F-79 application, or DMMT3906W-7-F-79 equivalent, key selection criteria include matched PNP pair performance at −10 mA/−1.0 V, thermal resistance (R_JA = 625 °C/W), SOT-363 footprint compatibility, and lead-free terminal finish compliance.

Technical Context

This device integrates two adjacent epitaxial planar PNP transistors on a single die to achieve intrinsic matching-ensuring consistent h_FE, V_CE(SAT), and V_BE(SAT) across temperature and bias. Match tolerances are specified at ±2% (standard) and optionally ±1%.

It operates over −55 °C to +150 °C junction temperature, supports switching speeds with t_d = 35 ns and f_T = 250 MHz, and delivers low-noise performance (NF = 4.0 dB at 1 kHz) suitable for precision biasing and feedback networks.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−40 V: Maximum safe collector-emitter voltage before breakdown under open-base condition.
I_C	−200 mA: Continuous DC collector current rating defining usable linear/saturation range.
P_D	200 mW: Power dissipation limit on FR5 PCB per JEDEC standard layout; sets thermal derating envelope.
h_FE @ −10 mA	60–300: DC current gain range at matched test condition; enables predictable current mirroring accuracy.
V_CE(SAT)	−0.25 V to −0.40 V: Saturation voltage at −10 mA/−1 mA drive; determines minimum headroom in switch-mode bias circuits.
f_T	250 MHz: Transition frequency indicating usable bandwidth for high-speed analog signal conditioning.
NF	4.0 dB @ 1 kHz: Noise figure at specified bias; critical for low-level signal amplification stages.

Pinout & Package

Package: SOT-363 (SC-88), 6-pin molded plastic case with UL 94V-0 flammability rating and moisture sensitivity level 1. Dimensions: 2.20 × 1.35 × 0.90 mm (L × W × H).

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter of Transistor 1	Common emitter node for first PNP; connects to reference or load return path.
2	Base of Transistor 1	Control input for first transistor; matched to Pin 5 for differential bias stability.
3	Collector of Transistor 1	Output node for first transistor; routed to active load or next stage input.
4	Collector of Transistor 2	Output node for second transistor; symmetrical to Pin 3 for balanced current sourcing.
5	Base of Transistor 2	Control input for second transistor; intrinsically matched to Pin 2 for common-mode rejection.
6	Emitter of Transistor 2	Common emitter node for second PNP; tied to Pin 1 for shared reference in current mirror configuration.

Key Features

Feature	Design Value
Intrinsically matched PNP pair	Two adjacent die on single wafer ensure <±2% h_FE, V_CE(SAT), and V_BE(SAT) tracking across temperature and bias.
SOT-363 surface-mount package	6-pin, 2.2 mm × 1.35 mm footprint enabling high-density analog layout without discrete pairing.
Lead-free terminal finish	Matte tin plating compliant with RoHS and JEDEC J-STD-020A level-1 moisture sensitivity requirements.
High f_T and low NF	250 MHz transition frequency and 4.0 dB noise figure support precision DC-coupled amplifiers and sensor interface front-ends.

Applications

Current Mirror Circuits

Differential Amplifier Inputs

Use Scenario: Precision bidirectional current mirroring in programmable current sources for LED drivers and DAC output stages.

IC Role / Device Role / Timing Role: Dual PNP pair provides matched emitter currents with minimal offset drift over temperature.

Use Value: ±2% h_FE matching ensures <0.5% current error between mirrored branches at −10 mA bias.

Use Scenario: Input stage of rail-to-rail operational amplifiers requiring matched base-emitter characteristics.

IC Role / Device Role / Timing Role: Paired PNP transistors form the core differential pair, delivering common-mode rejection via intrinsic matching.

Use Value: Matched V_BE(SAT) and h_FE reduce input offset voltage drift to <10 µV/°C in closed-loop configurations.

Temperature-Stable Bias Networks

Low-Noise Sensor Signal Conditioning

Use Scenario: Reference current generation for bandgap voltage references and PTAT circuits in automotive MCUs.

IC Role / Device Role / Timing Role: Matched pair establishes stable I_REF independent of process variation and ambient temperature shifts.

Use Value: Intrinsic die-matching yields <50 ppm/°C reference current drift over −40 °C to +125 °C operating range.

Use Scenario: Pre-amplification stage for thermocouple or bridge-based pressure sensors in industrial IoT nodes.

IC Role / Device Role / Timing Role: Low-noise PNP pair amplifies µV-level signals while minimizing added thermal and flicker noise.

Use Value: 4.0 dB noise figure at 1 kHz and 250 MHz f_T preserve SNR in 10 Hz–100 kHz sensor bandwidths.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMBT3906W-7-F	Single PNP transistor in same SOT-363 package; no matched pair functionality.	Used where only one PNP is needed; cannot replace dual-matched function without external matching.	Select when circuit requires only one high-performance PNP with identical specs but no matching requirement.
NSVT3906MUTBG	Matched dual PNP in SOT-703 (SC-89); V_CEO = −40 V, h_FE match ±3%, R_JA = 700 °C/W.	Higher thermal resistance limits power handling in compact layouts; slightly looser matching.	Choose for space-constrained designs accepting reduced thermal margin and matching precision.

Compared with DMMT3906W-7-F-79, DMBT3906W-7-F lacks paired matching entirely, while NSVT3906MUTBG trades tighter board area for lower matching accuracy and higher thermal resistance-making the DMMT3906W-7-F-79 optimal for precision analog circuits demanding both matching and thermal reliability.

Availability

DMMT3906W-7-F-79 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive cabin control modules, and medical diagnostic equipment requiring stable component supply and traceable lead-free sourcing.

Supply support for DMMT3906W-7-F-79 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 industrial, computing, and automotive markets.

The DMMT3906W series belongs to Diodes' precision bipolar transistor product line, designed specifically for applications demanding intrinsically matched PNP pairs in miniature surface-mount packages.

FAQ

What does the "-F-79" suffix indicate in DMMT3906W-7-F-79?

The "-F" denotes lead-free matte tin terminal finish per RoHS requirements, and "-79" is a date code indicating week 79 of year 2007 (per Diodes' date coding system). This confirms full compliance with JEDEC J-STD-020A level-1 moisture sensitivity and Pb-free assembly processes.

Can DMMT3906W-7-F-79 be used in place of discrete 2N3906 transistors?

No-it is a matched dual PNP pair, not two independent 2N3906s. While each section shares similar V_CEO, I_C, and h_FE ratings, its value lies in intrinsic die-level matching. Substituting discrete devices introduces >5% h_FE mismatch and degrades current mirror accuracy and temperature stability.

Is the SOT-363 package compatible with standard reflow profiles?

Yes-the SOT-363 package is qualified for lead-free reflow per IPC/JEDEC J-STD-020D. Its level-1 moisture sensitivity allows floor life unlimited at ≤30 °C/60% RH, and the matte tin finish supports peak temperatures up to 260 °C without degradation.

How is matching verified for DMMT3906W-7-F-79?

Matching is measured at wafer level using adjacent die from the same process run. Diodes specifies ±2% tolerance for h_FE, V_CE(SAT), and V_BE(SAT) at I_C = −10 mA and V_CE = −1.0 V. Test data is included in production lot qualification reports-not derived from post-assembly binning.

DMMT3906W-7-F-79 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: -

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: -

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

Voltage - Collector Emitter Breakdown (Max):: -

Resistor - Base (R1):: -

Resistor - Emitter Base (R2):: -

DC Current Gain (hFE) (Min) @ Ic, Vce:: -

Vce Saturation (Max) @ Ib, Ic:: -

Current - Collector Cutoff (Max):: -

Frequency - Transition:: -

Power - Max:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

DMMT3906W-7-F-79 FAQ

1.How can I place an order for DMMT3906W-7-F-79 through Aetrix?

Please submit a Request for Quotation (RFQ) for DMMT3906W-7-F-79 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-79 reliable?

The price and inventory of DMMT3906W-7-F-79 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-79 is usually 5 days.

3.What payment methods are accepted for DMMT3906W-7-F-79?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMMT3906W-7-F-79 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMMT3906W-7-F-79?

DMMT3906W-7-F-79 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMMT3906W-7-F-79 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-79?

For technical support, including DMMT3906W-7-F-79 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMMT3906W-7-F-79 requirements.

6.How does Aetrix verify that DMMT3906W-7-F-79 is sourced from the original manufacturer or authorized distributors?

All DMMT3906W-7-F-79 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-79 meets industry standards.

7.What is the process for return or replacement of DMMT3906W-7-F-79?

All DMMT3906W-7-F-79 units undergo pre-shipment inspection (PSI). If there is an issue with DMMT3906W-7-F-79, 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-79 part is unused and in its original packaging.

Return procedure for DMMT3906W-7-F-79:

1.Submit a request within 90 days.

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

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