component
PDTC123YU
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
markdownPDTC123YU
Nexperia · Digital Transistors · SOT-323
PDTC123YU 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) pin of the NPN resistor-equipped transistor, with bias resistor R1 = 2.2 kΩ (1.54 to 2.86 kΩ); input voltage is limited to -5 V to 12 V. |
| 2 | GND | power_in | Ground (emitter) pin of the transistor; the datasheet gives no separate voltage or current limit for this pin. |
| 3 | O | output | Output (collector) pin of the transistor; output current is limited to 100 mA and collector-emitter voltage to 50 V (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 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 | 700 | µA | VEB = 5 V; IC = 0 A; Tamb = 25 °C | 5 | ||
| DC current gain | hFE | 35 | VCE = 5 V; IC = 5 mA; Tamb = 25 °C | 5 | |||
| collector-emitter saturation voltage | VCEsat | 150 | mV | IC = 10 mA; IB = 0.5 mA; Tamb = 25 °C | 5 | ||
| off-state input voltage | VI(off) | 0.75 | 0.3 | V | VCE = 5 V; IC = 100 µA; Tamb = 25 °C | 5 | |
| on-state input voltage | VI(on) | 2.5 | 1.15 | V | VCE = 300 mV; IC = 20 mA; Tamb = 25 °C | 5 | |
| bias resistor 1 (input) | R1 | 1.54 | 2.2 | 2.86 | kΩ | 5 | |
| bias resistor ratio | R2/R1 | 3.6 | 4.5 | 5.5 | 5 | ||
| collector capacitance | Cc | 2 | pF | VCB = 10 V; IE = 0 A; ie = 0 A; f = 1 MHz; Tamb = 25 °C | 5 | ||
| collector-base voltage | VCBO | 50 | V | open emitter | 3 | ||
| collector-emitter voltage | VCEO | 50 | V | open base | 3 | ||
| emitter-base voltage | VEBO | 5 | V | open collector | 3 | ||
| input voltage | VI | -5 | 12 | V | 3 | ||
| output current | IO | 100 | mA | 3 | |||
| total power dissipation | Ptot | 200 | 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 |
CAD (KiCad official)
- Symbol:
PDTC123YU - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
pdtc123yu-etched.step/pdtc123yu-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pdtc123yu.step/pdtc123yu.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (11 pp, sha256
af88837648da32e7, retrieved 2026-10-19, 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).