component
PDTC143XU
Public Made by Adomby adom
Nexperia Digital Transistors, SOT-323. 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
markdownPDTC143XU
Nexperia · Digital Transistors · SOT-323
PDTC143XU from Nexperia, in a SOT-323. 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 (base) of the built-in bias network, with input voltage limits of -7 V to 20 V per the limiting values. |
| 2 | GND | power_in | Ground (emitter) of the transistor, the common reference for input and output. |
| 3 | O | output | Output (collector) of the transistor, rated for an output current of 100 mA and a collector-emitter voltage of 50 V maximum with open base. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOT-323 |
| 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 | -7 | 20 | V | 3 | ||
| Output current | IO | 100 | mA | 3 | |||
| Peak collector current | ICM | 100 | mA | tp ≤ 1 ms; single pulse | 3 | ||
| Total power dissipation | Ptot | 250 | mW | Tamb ≤ 25 °C; device mounted on FR4 PCB, single-sided, 35 µm copper, standard footprint | 3 | ||
| Junction temperature | Tj | 150 | °C | 3 | |||
| Ambient temperature | Tamb | -65 | 150 | °C | 3 | ||
| Storage temperature | Tstg | -65 | 150 | °C | 3 | ||
| Thermal resistance from junction to ambient | Rth(j-a) | 625 | K/W | in free air; device mounted on FR4 PCB, single-sided, 35 µm copper, standard footprint | 4 | ||
| Collector-base breakdown voltage | V(BR)CBO | 50 | V | IC = 100 µA; IE = 0 A; Tamb = 25 °C | 5 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | 50 | V | IC = 2 mA; IB = 0 A; 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 | 100 | nA | 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 | resistor test conditions per footnote [1] (Section 11, Table 8) | 5 |
| Bias resistor ratio | R2/R1 | 1.7 | 2.1 | 2.6 | resistor test conditions per footnote [1] (Section 11, Table 8) | 5 | |
| Collector capacitance | Cc | 2.5 | pF | VCB = 10 V; IE = 0 A; ie = 0 A; f = 1 MHz; Tamb = 25 °C | 5 | ||
| Bias resistor 2 | R2 | 10 | kΩ | nominal value as printed in part title and Table 8; no tolerance printed | 7 |
CAD (KiCad official)
- Symbol:
PDTC143XU - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
pdtc143xu-etched.step/pdtc143xu-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pdtc143xu.step/pdtc143xu.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (11 pp, sha256
e89d4d3e740c6e4b, retrieved 2026-10-18, 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).