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DCX124EK-7-F

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Diodes Incorporated Digital Transistors, SOT-26. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DCX124EK-7-F

Diodes Incorporated · Digital Transistors · SOT-26

DCX124EK-7-F from Diodes Incorporated, in a SOT-26. 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 E1 passive Emitter of transistor 1, pin 1 marked by the dot on the package; the datasheet states a 50V supply (VCC) and 30mA output current (IO) for the DCX124EK.
2 B1 input Base (input) of transistor 1 through built-in R1 = 22kΩ with R2 = 22kΩ, rated for VIN of -10 to +40V (NPN section) or +10 to -40V (PNP section).
3 C2 passive Collector (output) of transistor 2, with 50V VCC and 30mA IO limits for the DCX124EK.
4 E2 passive Emitter of transistor 2, with 50V VCC and 30mA IO limits for the DCX124EK.
5 B2 input Base (input) of transistor 2 through built-in R1 = 22kΩ with R2 = 22kΩ, rated for VIN of -10 to +40V (NPN section) or +10 to -40V (PNP section).
6 C1 passive Collector (output) of transistor 1, with 50V VCC and 30mA IO limits for the DCX124EK.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-26
Category Transistors/Thyristors
Pins 6

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 resistor R1 (nominal) R1 22 kΩ 1
Input resistor R2 (nominal) R2 22 kΩ 1
NPN Input Voltage (off) Vl(off) 0.5 1.1 V VCC = 5V, IO = 100μA 3
NPN Input Voltage (on) Vl(on) 1.65 3 V VO = 0.3V, IO = 5mA 3
NPN Output Voltage (on) VO(on) 0.1 0.3 V IO/Il = 10mA / 0.5mA 3
NPN Input Current Il 0.36 mA VI = 5V 3
NPN Output Current (off) IO(off) 0.5 µA VCC = 50V, VI = 0V 3
NPN DC Current Gain Gl 80 VO = 5V, IO = 5mA 3
NPN Input Resistor (R1) Tolerance ∆R1 -30 30 % 3
NPN Resistance Ratio Tolerance R2/R1 -20 20 % 3
PNP Input Voltage (off) Vl(off) -0.5 -1.1 V VCC = -5V, IO = -100μA 4
PNP Input Voltage (on) Vl(on) -1.9 -3 V VO = -0.3V, IO = -5mA 4
PNP Output Voltage (on) VO(on) -0.1 -0.3 V IO/Il = -10mA /-0.5mA 4
PNP Input Current Il -0.36 mA VI = -5V 4
PNP Output Current (off) IO(off) -0.5 µA VCC = 50V, VI = 0V 4
PNP DC Current Gain Gl 80 VO = -5V, IO = -5mA 4
PNP Input Resistor (R1) Tolerance ∆R1 -30 30 % 4
PNP Resistance Ratio Tolerance R2/R1 -20 20 % 4
NPN Supply Voltage VCC 50 V @ TA = 25°C 2
NPN Input Voltage VIN -10 40 V @ TA = 25°C 2
NPN Output Current IO 30 mA @ TA = 25°C 2
NPN Output Current All IC(MAX) 100 mA @ TA = 25°C 2
PNP Supply Voltage VCC 50 V @ TA = 25°C 2
PNP Input Voltage VIN -40 10 V @ TA = 25°C 2
PNP Output Current IO -30 mA @ TA = 25°C 2
PNP Output Current All IC(MAX) -100 mA @ TA = 25°C 2
Power Dissipation (Total) PD 300 mW Note 5: FR-4 PC board, minimum recommended pad layout 2
Thermal Resistance, Junction to Ambient Air RθJA 417 °C/W Note 5: FR-4 PC board, 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: DCX124EK-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-26 (KiCad packages3D, STEP)
  • 3D model files: dcx124ek-7-f-etched.step / dcx124ek-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dcx124ek-7-f.step / dcx124ek-7-f.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Diodes Incorporated datasheet (13 pp, sha256 241e9a1b34f1d75b, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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