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ZXT11N20DFTA

Public Made by Adom

by adom

Diodes Incorporated Bipolar Transistors - BJT, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

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ZXT11N20DFTA

Diodes Incorporated · Bipolar Transistors - BJT · SOT-23

ZXT11N20DFTA from Diodes Incorporated, in a SOT-23. 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 B input Base terminal of the NPN transistor; VEBO max 7.5V, continuous base current IB max 500mA.
2 E passive Emitter terminal of the NPN transistor; emitter-base voltage rating VEBO is 7.5V.
3 C passive Collector terminal of the NPN transistor; VCEO 20V, VCBO 40V, IC 2.5A continuous and 5A peak.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23
Category Transistors
Pins 3

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 TA = +25°C 2
Collector-Emitter Voltage VCEO 20 V TA = +25°C 2
Emitter-Base Voltage VEBO 7.5 V TA = +25°C 2
Continuous Collector Current IC 2.5 A TA = +25°C 2
Peak Pulse Collector Current ICM 5 A Single pulse, TA = +25°C 2
Base Current IB 500 mA TA = +25°C 2
Power Dissipation PD 625 mW Note 5, 25mm x 25mm FR4 PCB, steady state (printed unit W) 2
Power Dissipation PD 806 mW Note 6, t < 5 seconds (printed unit W) 2
Thermal Resistance, Junction to Ambient RθJA 200 C/W Note 5 2
Thermal Resistance, Junction to Ambient RθJA 155 C/W Note 6, t < 5 seconds 2
Operating and Storage Temperature Range TJ, TSTG -55 150 C 2
Collector-Base Breakdown Voltage BVCBO 40 V IC = 100μA 4
Collector-Emitter Breakdown Voltage BVCEO 20 V IC = 10mA 4
Emitter-Base Breakdown Voltage BVEBO 7.5 V IE = 100μA 4
Collector Cutoff Current ICBO 100 nA VCB = 32V 4
Collector Emitter Cutoff Current ICES 100 nA VCES = 32V 4
Emitter Cutoff Current IEBO 100 nA VEB = 6V 4
Collector-Emitter Saturation Voltage VCE(sat) 7 12 mV IC = 100mA, IB = 10mA 4
Collector-Emitter Saturation Voltage VCE(sat) 40 60 mV IC = 1A, IB = 10mA 4
Collector-Emitter Saturation Voltage VCE(sat) 65 100 mV IC = 1A, IB = 100mA 4
Collector-Emitter Saturation Voltage VCE(sat) 90 130 mV IC = 2.5A, IB = 250mA 4
Base-Emitter Saturation Voltage VBE(sat) 0.9 1 V IC = 2.5A, IB = 250mA 4
Base-Emitter Turn-On Voltage VBE(on) 0.85 1 V IC = 2.5A, VCE = 2V 4
DC Current Gain hFE 200 IC = 10mA, VCE = 2V 4
DC Current Gain hFE 300 900 IC = 100mA, VCE = 2V 4
DC Current Gain hFE 250 IC = 1A, VCE = 2V 4
DC Current Gain hFE 150 IC = 3A, VCE = 2V 4
DC Current Gain hFE 100 IC = 5A, VCE = 2V 4
Transitional Frequency fT 160 MHz IC = 50mA, VCE = 10V, f = 50MHz 4
Output Capacitance Cobo 20 pF VCB = 10V, f = 1MHz 4
Turn-On Time ton 122 ns IC = 2A, VCC = 10V, IB1 = -IB2 = 20mA 4
Turn-Off Time toff 295 ns IC = 2A, VCC = 10V, IB1 = -IB2 = 20mA 4

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: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: ZXT11N20DFTA
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: zxt11n20dfta-etched.step / zxt11n20dfta-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); zxt11n20dfta.step / zxt11n20dfta.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (7 pp, sha256 6d8477a8a95fe807, retrieved 2026-10-22, tier: manufacturer)
  • 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