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TLP621-4

Public Made by Adom

by adom

TOSHIBA Logic Output Optoisolators, DIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TLP621-4

TOSHIBA · Logic Output Optoisolators · DIP-16

TLP621-4 from TOSHIBA, in a DIP-16. 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 input infrared emitting diode (channel 1); the datasheet gives a 5 V maximum reverse voltage (VR) and 16 to 20 mA recommended forward current (IF).
2 Cathode passive Cathode of the input infrared emitting diode (channel 1), returning the LED drive current.
3 Anode passive Anode of the input infrared emitting diode (channel 2); the datasheet gives a 5 V maximum reverse voltage (VR) and 16 to 20 mA recommended forward current (IF).
4 Cathode passive Cathode of the input infrared emitting diode (channel 2), returning the LED drive current.
5 Anode passive Anode of the input infrared emitting diode (channel 3); the datasheet gives a 5 V maximum reverse voltage (VR) and 16 to 20 mA recommended forward current (IF).
6 Cathode passive Cathode of the input infrared emitting diode (channel 3), returning the LED drive current.
7 Anode passive Anode of the input infrared emitting diode (channel 4); the datasheet gives a 5 V maximum reverse voltage (VR) and 16 to 20 mA recommended forward current (IF).
8 Cathode passive Cathode of the input infrared emitting diode (channel 4), returning the LED drive current.
9 Emitter passive Emitter of the output phototransistor (channel 4); the datasheet gives an emitter-collector voltage (VECO) of 7 V minimum breakdown.
10 Collector passive Collector of the output phototransistor (channel 4); the datasheet gives a 55 V minimum collector-emitter breakdown voltage and 1 to 10 mA recommended collector current.
11 Emitter passive Emitter of the output phototransistor (channel 3); the datasheet gives an emitter-collector voltage (VECO) of 7 V minimum breakdown.
12 Collector passive Collector of the output phototransistor (channel 3); the datasheet gives a 55 V minimum collector-emitter breakdown voltage and 1 to 10 mA recommended collector current.
13 Emitter passive Emitter of the output phototransistor (channel 2); the datasheet gives an emitter-collector voltage (VECO) of 7 V minimum breakdown.
14 Collector passive Collector of the output phototransistor (channel 2); the datasheet gives a 55 V minimum collector-emitter breakdown voltage and 1 to 10 mA recommended collector current.
15 Emitter passive Emitter of the output phototransistor (channel 1); the datasheet gives an emitter-collector voltage (VECO) of 7 V minimum breakdown.
16 Collector passive Collector of the output phototransistor (channel 1); the datasheet gives a 55 V minimum collector-emitter breakdown voltage and 1 to 10 mA recommended collector current.

Key specifications

Parameter Value
Manufacturer TOSHIBA
Package DIP-16
Category Optoisolators
Pins 16

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Current transfer ratio IC / IF 50 600 % IF = 5 mA, VCE = 5 V 4
Forward voltage VF 1 1.15 1.3 V IF = 10 mA 4
Reverse current IR 10 μA VR = 5 V 4
Collector-emitter breakdown voltage V(BR)CEO 55 V IC = 0.5 mA 4
Emitter-collector breakdown voltage V(BR)ECO 7 V IE = 0.1 mA 4
Collector dark current ICEO 10 100 nA VCE = 24 V 4
Collector dark current ICEO 2 50 μA VCE = 24 V, Ta = 85 °C 4
Collector-emitter saturation voltage VCE (sat) 0.4 V IC = 2.4 mA, IF = 8 mA 4
Isolation voltage BVS 5000 Vrms AC, 60 s 4
Supply voltage VCC 5 24 V 3
Forward current IF 16 20 mA 3
Collector current IC 1 10 mA 3
Operating temperature Topr -25 85 °C 3
Forward current IF 50 mA 3
Forward current derating ΔIF /°C -0.5 mA /°C Ta ≥ 25°C 3
Pulse forward current IFP 1 A 100μs pulse, 100pps 3
Power dissipation (LED) PD 70 mW 3
Power dissipation derating (LED) ΔPD /°C -0.7 mW /°C Ta ≥ 25°C 3
Reverse voltage VR 5 V 3
Junction temperature Tj 125 °C 3
Collector-emitter voltage VCEO 55 V 3
Emitter-collector voltage VECO 7 V 3
Collector current IC 50 mA 3
Collector power dissipation (1 circuit) PC 100 mW 1 circuit 3
Collector power dissipation derating (1 circuit) ΔPC /°C -1 mW /°C 1 circuit, Ta ≥ 25°C 3
Storage temperature range Tstg -55 125 °C 3
Operating temperature range Topr -55 100 °C 3
Lead soldering temperature Tsol 260 °C 10 s 3
Total package power dissipation PT 150 mW 3
Total package power dissipation derating ΔPT /°C -1.5 mW /°C Ta ≥ 25°C 3
Isolation voltage BVS 5000 Vrms AC, 60 s, R.H. ≤ 60 % 3

CAD (KiCad official)

  • Symbol: TLP621-4
  • Footprint: Package_DIP:DIP-16_W7.62mm
  • 3D model: DIP-16 (KiCad packages3D, STEP)
  • 3D model files: tlp621-4-etched.step / tlp621-4-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlp621-4.step / tlp621-4.glb are the bare package body.

Provenance

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

  • Datasheet: TOSHIBA datasheet (9 pp, sha256 73cbd7a0f02cbb9f, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF