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Contents

README

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DTD143ECHZGT116

ROHM Semicon · Bipolar Transistors - BJT · SOT-23

DTD143ECHZGT116 from ROHM Semicon, 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 GND (EMITTER) power_in Ground/emitter of the built-in NPN transistor, connected to R2 of the inner circuit.
2 IN (BASE) input Input/base pin through built-in R1 of 4.7kΩ, with input voltage rated -10 to 30 V and VI(off) max 0.5 V, VI(on) min 3.0 V.
3 OUT (COLLECTOR) output Output/collector pin rated 50 V supply voltage and 500 mA collector current, with VO(on) max 300 mV at IO = 50 mA.

Key specifications

Parameter Value
Manufacturer ROHM Semicon
Package SOT-23
Category Triode/MOS Tube/Transistor
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
Supply voltage VCC 50 V Ta = 25°C 2
Input voltage VIN -10 30 V Ta = 25°C 2
Collector current IC 500 mA Ta = 25°C 2
Power dissipation PD 200 mW Ta = 25°C; each terminal mounted on a reference land 2
Junction temperature Tj 150 ℃ Ta = 25°C 2
Storage temperature range Tstg -55 150 ℃ Ta = 25°C 2
Input voltage (off) VI(off) 0.5 V VCC = 5V, IO = 100μA 2
Input voltage (on) VI(on) 3 V VO = 0.3V, IO = 20mA 2
Output voltage VO(on) 100 300 mV IO = 50mA, II = 2.5mA 2
Input current II 1.8 mA VI = 5V 2
Output current IO(off) 500 nA VCC = 50V, VI = 0V 2
DC current gain GI 47 VO = 5V, IO = 50mA 2
Input resistance R1 3.29 4.7 6.11 kΩ 2
Resistance ratio R2/R1 0.8 1 1.2 2
Transition frequency fT 200 MHz VCE = 10V, IE = -50mA, f = 100MHz; characteristics of built-in transistor 2

CAD (KiCad official)

  • Symbol: DTD143ECHZGT116
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: dtd143echzgt116-etched.step / dtd143echzgt116-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dtd143echzgt116.step / dtd143echzgt116.glb are the bare package body.

Provenance

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

  • Datasheet: ROHM Semicon datasheet (7 pp, sha256 c68ff41ddc7f5252, retrieved 2026-10-22, tier: manufacturer)
  • 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