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Contents

README

markdown

DY-IR204C

TONYU · Infrared LED Emitters · LED_D3.0mm

DY-IR204C from TONYU, in a LED_D3.0mm. 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 K passive Cathode of the infrared emitting diode; reverse voltage max 5V, reverse current max 10μA at VR=5V.
2 A passive Anode of the GaAlAs 940nm infrared emitting diode (longer lead); forward current max 100mA continuous, 1.0A peak (pulse width ≤100μs, duty ≤1%), VF typ 1.2V at IF=20mA.

Key specifications

Parameter Value
Manufacturer TONYU
Package LED_D3.0mm
Category Optoelectronics
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Forward voltage VF 1.2 1.5 V IF=20mA 4
Forward voltage VF 1.3 1.85 V IF=100mA, Pulse width≤100μs, Duty≤1% 4
Reverse current IR 10 μA VR=5V 4
Radiant intensity Ee 7.8 24 mW/sr IF=20mA 4
Viewing angle 2θ1/2 35 deg IF=20mA 4
Forward voltage tolerance VF -0.1 0.1 v 4
Radiant intensity tolerance Ee -10 10 % 4
Wavelength tolerance λp -1 1 nm 4
Forward current IF 100 mA 6
Peak forward current IFP 1 A Pulse width≤100μs, Duty≤1% 6
Reverse voltage VR 5 V 6
Power dissipation Pd 150 mW 6
Operation temperature Tamb -25 80 ℃ 6
Storage temperature Tstg -35 85 ℃ 6
Soldering temperature Tsol 260 ℃ Wave soldering, 3mm out of physical body, ≤3S 6
Radiant intensity Ee 38 mW/sr IF=100mA, Pulse width≤100μs, Duty≤1% 4
Radiant intensity Ee 350 mW/sr IF=1A, Pulse width≤100μs, Duty≤1% 4
Spectral band width Δλ 45 nm IF=20mA 4
Peak wavelength λp 940 nm IF=20mA 4

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 The kinked tooling scrape easily the pin of LED, where the LED bracket is rusting easily, especial expose it in moist air. To decrease the LED bracket rust, advise using plated tin LED bracket. 8

CAD (KiCad official)

  • Symbol: DY-IR204C
  • Footprint: LED_THT:LED_D3.0mm
  • 3D model: LED_D3.0mm (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: TONYU datasheet (8 pp, sha256 887eb498547c889b, retrieved 2026-11-06, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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