component
DY-ITR8409
Public Made by Adomby adom
TONYU Photointerrupters - Slot Type - Transistor Output, DIP-4. 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
markdownDY-ITR8409
TONYU · Photointerrupters - Slot Type - Transistor Output · DIP-4
DY-ITR8409 from TONYU, in a DIP-4. 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 | ANODE | passive | Anode of the infrared LED emitter (940nm peak), forward current IF=20mA typical drive with VF 1.2V typ/1.5V max, absolute maximum IF 50mA and reverse voltage 5V. |
| 2 | CATHODE | passive | Cathode of the infrared LED emitter, return path for the forward current (IF max 50mA, peak IFP 1A at pulse width ≤100µs, duty 1%). |
| 3 | COLLECTOR | passive | Collector of the phototransistor detector, with BVCEO 30V max, collector current IC max 20mA and dark current ICEO max 100nA at VCE=20V. |
| 4 | EMITTER | passive | Emitter of the phototransistor detector, with emitter-collector voltage BVECO max 5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TONYU |
| Package | DIP-4 |
| Category | Optoelectronics |
| Pins | 4 |
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 | |
| Reverse current | IR | 10 | μA | VR=5V | 4 | ||
| Dark current | ICEO | 100 | nA | VCE=20V, Ee=0mW/cm2 | 4 | ||
| C-E saturation voltage | VCE(sat) | 0.4 | V | IC=2mA, Ee=1mW/cm2 | 4 | ||
| Collector current (ON) | IC(ON) | 1 | 20 | mA | VCE=5V, IF=20mA | 4 | |
| Collector current (OFF) | IC(OFF) | 20 | μA | 4 | |||
| Forward voltage tolerance | VF | -0.1 | 0.1 | v | Forward voltage tolerance range, printed as ±0.1v | 4 | |
| Radiant intensity tolerance | -10 | 10 | % | Radiant intensity tolerance range, printed as ±10% | 4 | ||
| Wavelength tolerance | -1 | 1 | nm | Wavelength tolerance range, printed as ±1.0nm | 4 | ||
| Power dissipation | Pd | 75 | mW | At (or below) 25℃ free air temperature | 7 | ||
| Reverse voltage | VR | 5 | V | 7 | |||
| Forward current | IF | 50 | mA | 7 | |||
| Peak forward current | IFP | 1 | A | Pulse width ≦100μs, Duty cycle=1%; tw=100 μsec, T=10 msec | 7 | ||
| Collector power dissipation | Pc | 75 | mW | 7 | |||
| Collector current | Ic | 20 | mA | 7 | |||
| Collector-emitter voltage | BVCEO | 30 | V | 7 | |||
| Emitter-collector voltage | BVECO | 5 | V | 7 | |||
| Operating temperature | Topr | -25 | 85 | ℃ | 7 | ||
| Storage temperature | Tstg | -45 | 85 | ℃ | 7 | ||
| Soldering temperature | Tsol | 260 | ℃ | Wave soldering, 3mm out of physical body, ≤3S | 7 |
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. | 10 |
CAD (KiCad official)
- Symbol:
DY-ITR8409 - Footprint:
Package_DIP:DIP-4_W7.62mm - 3D model: DIP-4 (KiCad packages3D, STEP)
- 3D model files:
dy-itr8409-etched.step/dy-itr8409-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dy-itr8409.step/dy-itr8409.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TONYU datasheet (10 pp, sha256
61c38a3c66fdafad, retrieved 2026-10-16, 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).