component

ZTX651

Public Made by Adom

by adom

Diodes Incorporated Bipolar (BJT), TO-92. 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

markdown

ZTX651

Diodes Incorporated · Bipolar (BJT) · TO-92

ZTX651 from Diodes Incorporated, in a TO-92. 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 C passive Collector terminal; the datasheet rates VCBO at 80 V, VCEO at 60 V, continuous IC at 2 A and peak pulse ICM at 6 A.
2 B passive Base terminal; the datasheet rates VEBO at 7 V and specifies IEBO at VEB = 6 V.
3 E passive Emitter terminal; the datasheet rates the emitter-base voltage VEBO at 7 V maximum.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package TO-92
Category Transistors/Thyristors
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-Emitter Saturation Voltage VCE(sat) 120 300 mV IC = 1A, IB = 100mA 4
Collector-Emitter Saturation Voltage VCE(sat) 230 500 mV IC = 2A, IB = 200mA 4
Collector-Base Breakdown Voltage BVCBO 80 V IC = 100µA 4
Collector-Emitter Breakdown Voltage BVCEO 60 V IC = 10mA 4
Emitter-Base Breakdown Voltage BVEBO 7 V IE = 100µA 4
Collector Cut-off Current ICBO 0.1 µA VCB = 60V 4
Collector Cut-off Current ICBO 10 µA VCB = 60V, Tamb = 100°C 4
Emitter Cut-off Current IEBO 0.1 µA VEB = 6V 4
Base-Emitter Saturation Voltage VBE(sat) 0.9 1.25 V IC = 1A, IB = 100mA 4
Base-Emitter Turn-On Voltage VBE(on) 0.8 1 V IC = 1A, VCE = 2V 4
DC Current Gain hFE 70 IC = 50mA, VCE = 2V 4
DC Current Gain hFE 100 IC = 500mA, VCE = 2V 4
DC Current Gain hFE 80 IC = 1A, VCE = 2V 4
DC Current Gain hFE 40 IC = 2A, VCE = 2V 4
Current Gain-Bandwidth Product fT 140 175 MHz VCE = 5V, IC = 100mA, f = 100MHz 4
Output Capacitance Cobo 30 pF VCB = 10V, f = 1MHz 4
Collector-Base Voltage VCBO 80 V 2
Collector-Emitter Voltage VCEO 60 V 2
Emitter-Base Voltage VEBO 7 V 2
Continuous Collector Current IC 2 A 2
Peak Pulse Current ICM 6 A 2
Power Dissipation PD 1.5 W Note 6: through-hole, 25mm x 25mm 1oz copper collector lead, still air 2
Power Dissipation PD 1 W Note 7: minimum recommended pad layout, 12mm lead length 2
Thermal Resistance Junction to Ambient RΘJA 116 °C/W Note 6: through-hole, 25mm x 25mm 1oz copper collector lead, still air 2
Thermal Resistance Junction to Ambient RΘJA 175 °C/W Note 7: minimum recommended pad layout, 12mm lead length 2
Thermal Resistance Junction to Lead RΘJL 70 °C/W Note 8: junction to solder point at seating plane, 2.5mm from package bottom 2
Operating and Storage Temperature Range TJ, TSTG -55 200 °C 2
Electrostatic Discharge - Human Body Model ESD HBM 4000 V JEDEC Class 3A 2
Electrostatic Discharge - Machine Model ESD MM 400 V JEDEC Class C 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: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: ZTX651
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92 (KiCad packages3D, STEP)
  • 3D model files: ztx651-etched.step / ztx651-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ztx651.step / ztx651.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (7 pp, sha256 f336fd746f4b4e7f, retrieved 2026-10-19, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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