component
FCX789ATA
Public Made by Adomby adom
Diodes Incorporated Bipolar Transistors - BJT, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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FCX789ATA
Diodes Incorporated · Bipolar Transistors - BJT · SOT-89
FCX789ATA from Diodes Incorporated, in a SOT-89. 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 of the PNP transistor; the datasheet gives VEBO of -7V and a base-emitter turn-on voltage VBE(on) of -0.8V typ at IC = -1A. |
| 2 | C | passive | Collector of the PNP transistor (also the SOT89 tab); rated VCEO -25V, VCBO -25V, continuous IC -3A and peak ICM -8A. |
| 3 | E | passive | Emitter of the PNP transistor; the emitter-base voltage limit VEBO is -7V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-89 |
| 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-Base Voltage | VCBO | -25 | V | TA = +25°C | 2 | ||
| Collector-Emitter Voltage | VCEO | -25 | V | TA = +25°C | 2 | ||
| Emitter-Base Voltage | VEBO | -7 | V | TA = +25°C | 2 | ||
| Continuous Collector Current | IC | -3 | A | TA = +25°C | 2 | ||
| Peak Pulse Current | ICM | -8 | A | TA = +25°C | 2 | ||
| Power Dissipation (15x15mm PCB) | PD | 1 | W | Note 5, TA = +25°C | 2 | ||
| Power Dissipation (40x40mm PCB) | PD | 2 | W | Note 6, TA = +25°C | 2 | ||
| Operating and Storage Temperature Range | TJ, TSTG | -55 | 150 | °C | 2 | ||
| Collector-Base Breakdown Voltage | BVCBO | -25 | V | IC = -100µA | 4 | ||
| Collector-Emitter Breakdown Voltage | BVCEO | -25 | V | IC = -10mA | 4 | ||
| Emitter-Base Breakdown Voltage | BVEBO | -7 | -8.1 | V | IE = -100µA | 4 | |
| Collector Cutoff Current | ICBO | -100 | nA | VCB = -15V | 4 | ||
| Emitter Cutoff Current | IEBO | -100 | nA | VEB = -5.6V | 4 | ||
| DC current gain | hFE | 300 | 500 | 800 | IC = -10mA, VCE = -2V | 4 | |
| DC current gain | hFE | 230 | 320 | IC = -1A, VCE = -2V | 4 | ||
| DC current gain | hFE | 180 | 250 | IC = -2A, VCE = -2V | 4 | ||
| DC current gain | hFE | 75 | 120 | IC = -6A, VCE = -2V | 4 | ||
| Collector-Emitter Saturation Voltage | VCE(sat) | -130 | -190 | mV | IC = -1A, IB = -10mA | 4 | |
| Collector-Emitter Saturation Voltage | VCE(sat) | -290 | -400 | mV | IC = -2A, IB = -20mA | 4 | |
| Collector-Emitter Saturation Voltage | VCE(sat) | -250 | -320 | mV | IC = -3A, IB = -100mA | 4 | |
| Base-Emitter Saturation Voltage | VBE(sat) | -0.8 | -0.9 | V | IC = -1A, IB = -10mA | 4 | |
| Transitional Frequency | fT | 100 | MHz | IC = -50mA, VCE = -5V, f = 50MHz | 4 | ||
| Thermal Resistance, Junction to Ambient (15x15mm PCB) | RθJA | 125 | °C/W | Note 5 | 2 | ||
| Thermal Resistance, Junction to Ambient (40x40mm PCB) | RθJA | 62.5 | °C/W | Note 6 | 2 | ||
| Thermal Resistance, Junction to Leads | RθJL | 5.31 | °C/W | Note 7 | 2 | ||
| Base-Emitter Turn-on Voltage | VBE(on) | -0.8 | V | IC = -1A, VCE = -2V | 4 | ||
| Input capacitance | Cibo | 225 | pF | VEB = -0.5V, f = 1MHz | 4 | ||
| Output capacitance | Cobo | 25 | pF | VCB = -10V, f = 1MHz | 4 | ||
| Turn-on time | ton | 35 | nS | IC = -500mA, VCC = -10V, IB1 = -IB2 = -50mA | 4 | ||
| Turn-off time | toff | 400 | nS | IC = -500mA, VCC = -10V, IB1 = -IB2 = -50mA | 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:
FCX789ATA - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
fcx789ata-etched.step/fcx789ata-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fcx789ata.step/fcx789ata.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (7 pp, sha256
b3bf823995867508, retrieved 2026-10-27, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).
# FCX789ATA
**Diodes Incorporated** · Bipolar Transistors - BJT · SOT-89
FCX789ATA from Diodes Incorporated, in a SOT-89. 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 of the PNP transistor; the datasheet gives VEBO of -7V and a base-emitter turn-on voltage VBE(on) of -0.8V typ at IC = -1A. |
| 2 | C | passive | Collector of the PNP transistor (also the SOT89 tab); rated VCEO -25V, VCBO -25V, continuous IC -3A and peak ICM -8A. |
| 3 | E | passive | Emitter of the PNP transistor; the emitter-base voltage limit VEBO is -7V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-89 |
| 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-Base Voltage | VCBO | | | -25 | V | TA = +25°C | 2 |
| Collector-Emitter Voltage | VCEO | | | -25 | V | TA = +25°C | 2 |
| Emitter-Base Voltage | VEBO | | | -7 | V | TA = +25°C | 2 |
| Continuous Collector Current | IC | | | -3 | A | TA = +25°C | 2 |
| Peak Pulse Current | ICM | | | -8 | A | TA = +25°C | 2 |
| Power Dissipation (15x15mm PCB) | PD | | | 1 | W | Note 5, TA = +25°C | 2 |
| Power Dissipation (40x40mm PCB) | PD | | | 2 | W | Note 6, TA = +25°C | 2 |
| Operating and Storage Temperature Range | TJ, TSTG | -55 | | 150 | °C | | 2 |
| Collector-Base Breakdown Voltage | BVCBO | -25 | | | V | IC = -100µA | 4 |
| Collector-Emitter Breakdown Voltage | BVCEO | -25 | | | V | IC = -10mA | 4 |
| Emitter-Base Breakdown Voltage | BVEBO | -7 | -8.1 | | V | IE = -100µA | 4 |
| Collector Cutoff Current | ICBO | | | -100 | nA | VCB = -15V | 4 |
| Emitter Cutoff Current | IEBO | | | -100 | nA | VEB = -5.6V | 4 |
| DC current gain | hFE | 300 | 500 | 800 | | IC = -10mA, VCE = -2V | 4 |
| DC current gain | hFE | 230 | 320 | | | IC = -1A, VCE = -2V | 4 |
| DC current gain | hFE | 180 | 250 | | | IC = -2A, VCE = -2V | 4 |
| DC current gain | hFE | 75 | 120 | | | IC = -6A, VCE = -2V | 4 |
| Collector-Emitter Saturation Voltage | VCE(sat) | | -130 | -190 | mV | IC = -1A, IB = -10mA | 4 |
| Collector-Emitter Saturation Voltage | VCE(sat) | | -290 | -400 | mV | IC = -2A, IB = -20mA | 4 |
| Collector-Emitter Saturation Voltage | VCE(sat) | | -250 | -320 | mV | IC = -3A, IB = -100mA | 4 |
| Base-Emitter Saturation Voltage | VBE(sat) | | -0.8 | -0.9 | V | IC = -1A, IB = -10mA | 4 |
| Transitional Frequency | fT | 100 | | | MHz | IC = -50mA, VCE = -5V, f = 50MHz | 4 |
| Thermal Resistance, Junction to Ambient (15x15mm PCB) | RθJA | | 125 | | °C/W | Note 5 | 2 |
| Thermal Resistance, Junction to Ambient (40x40mm PCB) | RθJA | | 62.5 | | °C/W | Note 6 | 2 |
| Thermal Resistance, Junction to Leads | RθJL | | 5.31 | | °C/W | Note 7 | 2 |
| Base-Emitter Turn-on Voltage | VBE(on) | | -0.8 | | V | IC = -1A, VCE = -2V | 4 |
| Input capacitance | Cibo | | 225 | | pF | VEB = -0.5V, f = 1MHz | 4 |
| Output capacitance | Cobo | | 25 | | pF | VCB = -10V, f = 1MHz | 4 |
| Turn-on time | ton | | 35 | | nS | IC = -500mA, VCC = -10V, IB1 = -IB2 = -50mA | 4 |
| Turn-off time | toff | | 400 | | nS | IC = -500mA, VCC = -10V, IB1 = -IB2 = -50mA | 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: `FCX789ATA`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files: `fcx789ata-etched.step` / `fcx789ata-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fcx789ata.step` / `fcx789ata.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Diodes Incorporated datasheet](https://www.diodes.com/assets/Datasheets/FCX789ATA.pdf) (7 pp, sha256 `b3bf823995867508`, retrieved 2026-10-27, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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](docs/fcx789ata-datasheet.pdf)