component
DDTC143FCA-7-F
Public Made by Adomby adom
Diodes Incorporated 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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Contents
README
markdownDDTC143FCA-7-F
Diodes Incorporated · Digital Transistors · SOT-23
DDTC143FCA-7-F from Diodes Incorporated, 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 | IN | input | Input terminal to the base through the 4.7 kΩ input resistor R1; the absolute maximum input voltage for DDTC143FCA-7-F is -6 V to +30 V with respect to pin 2. |
| 2 | GND | power_in | Common ground, connected to the emitter; the absolute maximum supply voltage VCC of 50 V is specified from pin 3 to pin 2. |
| 3 | OUT | output | Output terminal of the collector; the maximum output current IO for DDTC143FCA-7-F is 100 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| 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 |
|---|---|---|---|---|---|---|---|
| Input Voltage (off) for DDTC143FCA | Vl(OFF) | 0.3 | V | VCC = 5V, IO = 100μA | 3 | ||
| Input Voltage (on) for DDTC143FCA | Vl(ON) | 1.3 | V | VO = 0.3V, IO = 3mA | 3 | ||
| Output Voltage for DDTC143FCA | VO(ON) | 0.1 | 0.3 | V | IO/Il = 10mA/0.5mA (All Others) | 3 | |
| Input Current for DDTC143FCA | Il | 1.8 | mA | VI = 5V | 3 | ||
| Output Current (off) | IO(OFF) | 0.5 | μA | VCC = 50V, VI = 0V | 3 | ||
| DC Current Gain for DDTC143FCA | Gl | 68 | VO = 5V, IO = 10mA | 3 | |||
| Input Resistor Tolerance | R1 | -30 | 30 | % | 3 | ||
| Resistance Ratio Tolerance | R2/R1 | -20 | 20 | % | 3 | ||
| Gain-Bandwidth Product (reference only) | fT | 250 | MHz | VCE = 10V, IE = 5mA, f = 100MHz | 3 | ||
| Input Resistor R1 (NOM) | R1 | 4.7 | KΩ | 1 | |||
| Input Resistor R2 (NOM) | R2 | 22 | KΩ | 1 | |||
| Supply Voltage | VCC | 50 | V | Pin (3) to (2) | 2 | ||
| Input Voltage for DDTC143FCA | VIN | -6 | 30 | V | Pin (1) to (2) | 2 | |
| Output Current for DDTC143FCA | IO | 100 | mA | 2 | |||
| Output Current (all variants) | IC(MAX) | 100 | mA | 2 | |||
| Power Dissipation | PD | 200 | mW | Note 6: mounted on FR4 PC board with minimum recommended pad layout | 2 | ||
| Thermal Resistance, Junction to Ambient | RθJA | 625 | °C/W | Note 6: mounted on FR4 PC board with minimum recommended pad layout | 2 | ||
| Operating and Storage Temperature Range | TJ, TSTG | -55 | 150 | °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:
DDTC143FCA-7-F - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ddtc143fca-7-f-etched.step/ddtc143fca-7-f-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ddtc143fca-7-f.step/ddtc143fca-7-f.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (6 pp, sha256
0cc5dc96040d959d, retrieved 2026-10-20, tier: lcsc) - 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).