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DMMT3906-7-F

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Diodes Incorporated Bipolar (BJT), SOT-26. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DMMT3906-7-F

Diodes Incorporated · Bipolar (BJT) · SOT-26

DMMT3906-7-F from Diodes Incorporated, in a SOT-26. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 E1 passive Emitter of PNP transistor 1 (pin 1 marked by the dot on the package diagram); VEBO rating is -5.0 V.
2 NC unconnected No internal connection.
3 E2 passive Emitter of PNP transistor 2; VEBO rating is -5.0 V.
4 C2 passive Collector of PNP transistor 2; VCEO is -40 V and continuous IC is -200 mA.
5 B1,2 passive Base pin shown as B1,2 in the diagram, joined to the bases of both PNP transistors.
6 C1 passive Collector of PNP transistor 1; VCEO is -40 V and continuous IC is -200 mA.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-26
Category Transistors/Thyristors
Pins 6

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Collector-Base Voltage VCBO -40 V 1
Collector-Emitter Voltage VCEO -40 V 1
Emitter-Base Voltage VEBO -5 V 1
Collector Current - Continuous IC -200 mA 1
Power Dissipation Pd 225 mW Note 2: FR5 PCB mounted 1
Thermal Resistance, Junction to Ambient RθJA 556 °C/W Note 2: FR5 PCB mounted 1
Operating and Storage Temperature Range Tj, TSTG -55 150 °C 1
Collector-Base Breakdown Voltage V(BR)CBO -40 V IC = -10μA, IE = 0 2
Collector-Emitter Breakdown Voltage V(BR)CEO -40 V IC = -1.0mA, IB = 0 2
Emitter-Base Breakdown Voltage V(BR)EBO -5 V IE = -10μA, IC = 0 2
Collector Cutoff Current ICEX -50 nA VCE = -30V, VEB(OFF) = -3.0V 2
Base Cutoff Current IBL -50 nA VCE = -30V, VEB(OFF) = -3.0V 2
DC Current Gain hFE 60 ⎯ IC = -100µA, VCE = -1.0V 2
DC Current Gain hFE 80 ⎯ IC = -1.0mA, VCE = -1.0V 2
DC Current Gain hFE 100 300 ⎯ IC = -10mA, VCE = -1.0V 2
DC Current Gain hFE 30 ⎯ IC = -100mA, VCE = -1.0V 2
Collector-Emitter Saturation Voltage VCE(SAT) -0.25 V IC = -10mA, IB = -1.0mA 2
Collector-Emitter Saturation Voltage VCE(SAT) -0.4 V IC = -50mA, IB = -5.0mA 2
Base-Emitter Saturation Voltage VBE(SAT) -0.65 -0.85 V IC = -10mA, IB = -1.0mA 2
Base-Emitter Saturation Voltage VBE(SAT) -0.95 V IC = -50mA, IB = -5.0mA 2
Output Capacitance Cobo 4.5 pF VCB = -5.0V, f = 1.0MHz, IE = 0 2
Input Capacitance Cibo 10 pF VEB = -0.5V, f = 1.0MHz, IC = 0 2
Input Impedance hie 2 12 kΩ 2
Voltage Feedback Ratio hre 0.1 10 x 10-4 2
Small Signal Current Gain hfe 100 400 ⎯ 2
Output Admittance hoe 3 60 μS VCE = 10V, IC = 1.0mA, f = 1.0kHz 2
Current Gain-Bandwidth Product fT 250 MHz VCE = -20V, IC = -10mA, f = 100MHz 2
Noise Figure NF 4 dB VCE = -5.0V, IC = -100μA, RS = 1.0kΩ, f = 1.0kHz 2
Delay Time td 35 ns VCC = -3.0V, IC = -10mA, VBE(off) = 0.5V, IB1 = -1.0mA 2
Rise Time tr 35 ns VCC = -3.0V, IC = -10mA, VBE(off) = 0.5V, IB1 = -1.0mA 2
Storage Time ts 225 ns VCC = -3.0V, IC = -10mA, IB1 = IB2 = -1.0mA 2
Fall Time tf 75 ns VCC = -3.0V, IC = -10mA, IB1 = IB2 = -1.0mA 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin • Terminals: Solderable per MIL-STD-202, Method 208 • Lead Free Plating (Matte Tin Finish annealed over 1

CAD (KiCad official)

  • Symbol: DMMT3906-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-26 (KiCad packages3D, STEP)
  • 3D model files: dmmt3906-7-f-etched.step / dmmt3906-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dmmt3906-7-f.step / dmmt3906-7-f.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Diodes Incorporated datasheet (4 pp, sha256 80fe4c56ff79c01d, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF