component
PDTA143XT
Public Made by Adomby adom
Nexperia Digital Transistors, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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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README
markdownPDTA143XT
Nexperia · Digital Transistors · SOT-23
PDTA143XT from Nexperia, 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 | I | input | Input pin (base) of the built-in transistor, with a bias resistor R1 = 4.7 kΩ (3.3 to 6.1 kΩ) on this input and an input voltage limited to -20 V to 7 V. |
| 2 | G | power_in | Ground pin (emitter of the built-in transistor), used as the GND reference; the emitter-base voltage is limited to -7 V (VEBO). |
| 3 | O | output | Output pin (collector of the built-in transistor), rated for an output current of -100 mA and a collector-emitter voltage of -50 V (VCEO). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOT-23 |
| 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 | -50 | V | open emitter | 3 | ||
| Collector-emitter voltage | VCEO | -50 | V | open base | 3 | ||
| Emitter-base voltage | VEBO | -7 | V | open collector | 3 | ||
| Input voltage | VI | -20 | 7 | V | 3 | ||
| Output current | IO | -100 | mA | 3 | |||
| Total power dissipation | Ptot | 250 | mW | Tamb ≤ 25 °C [1] | 3 | ||
| Junction temperature | Tj | 150 | °C | 3 | |||
| Ambient temperature | Tamb | -65 | 150 | °C | 3 | ||
| Storage temperature | Tstg | -65 | 150 | °C | 3 | ||
| Thermal resistance junction to ambient | Rth(j-a) | 500 | K/W | in free air [1] | 4 | ||
| Collector-base breakdown voltage | V(BR)CBO | -50 | V | IC = -100 A; IE = 0 A; Tamb = 25 °C | 5 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | -50 | V | IC = 2 mA; Tamb = 25 °C | 5 | ||
| Collector-base cut-off current | ICBO | -100 | nA | VCB = -50 V; IE = 0 A; Tamb = 25 °C | 5 | ||
| Collector-emitter cut-off current | ICEO | -1 | µA | VCE = -30 V; IB = 0 A; Tamb = 25 °C | 5 | ||
| Collector-emitter cut-off current | ICEO | -5 | µA | VCE = -30 V; IB = 0 A; Tj = 150 °C | 5 | ||
| Emitter-base cut-off current | IEBO | -600 | µA | VEB = -5 V; IC = 0 A; Tamb = 25 °C | 5 | ||
| DC current gain | hFE | 50 | VCE = -5 V; IC = -10 mA; Tamb = 25 °C | 5 | |||
| Collector-emitter saturation voltage | VCEsat | -100 | mV | IC = -10 mA; IB = -0.5 mA; Tamb = 25 °C | 5 | ||
| Off-state input voltage | VI(off) | -0.9 | -0.3 | V | VCE = -5 V; IC = -100 µA; Tamb = 25 °C | 5 | |
| On-state input voltage | VI(on) | -2.5 | -1.5 | V | VCE = -0.3 V; IC = -20 mA; Tamb = 25 °C | 5 | |
| Bias resistor 1 (input) | R1 | 3.3 | 4.7 | 6.1 | kΩ | 5 | |
| Bias resistor ratio | R2/R1 | 1.7 | 2.1 | 2.6 | Tamb = 25 °C | 5 | |
| Collector capacitance | Cc | 3 | pF | VCB = -10 V; IE = 0 A; ie = 0 A; f = 1 MHz; Tamb = 25 °C | 5 | ||
| Bias resistor 2 (nominal, built-in) | R2 | 10 | kΩ | 7 |
CAD (KiCad official)
- Symbol:
PDTA143XT - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
pdta143xt-etched.step/pdta143xt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pdta143xt.step/pdta143xt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (12 pp, sha256
d464ccd1f322b187, retrieved 2026-10-17, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).