component

TLP521-4

Public Made by Adom

by adom

TOSHIBA Transistor, Photovoltaic Output Optoisolators, DIP-16. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.

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TLP521-4

TOSHIBA · Transistor, Photovoltaic Output Optoisolators · DIP-16

TLP521-4 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 ANODE1 input LED anode of channel 1; forward current max 50 mA (recommended 16 mA typ, 25 mA max), reverse voltage 5 V max.
2 CATHODE1 passive LED cathode of channel 1.
3 ANODE2 input LED anode of channel 2; forward current max 50 mA (recommended 16 mA typ, 25 mA max), reverse voltage 5 V max.
4 CATHODE2 passive LED cathode of channel 2.
5 ANODE3 input LED anode of channel 3; forward current max 50 mA (recommended 16 mA typ, 25 mA max), reverse voltage 5 V max.
6 CATHODE3 passive LED cathode of channel 3.
7 ANODE4 input LED anode of channel 4; forward current max 50 mA (recommended 16 mA typ, 25 mA max), reverse voltage 5 V max.
8 CATHODE4 passive LED cathode of channel 4.
9 EMITTER4 passive Phototransistor emitter of channel 4; emitter-collector voltage 7 V max.
10 COLLECTOR4 passive Phototransistor collector of channel 4; VCEO 55 V max, collector current 50 mA max.
11 EMITTER3 passive Phototransistor emitter of channel 3; emitter-collector voltage 7 V max.
12 COLLECTOR3 passive Phototransistor collector of channel 3; VCEO 55 V max, collector current 50 mA max.
13 EMITTER2 passive Phototransistor emitter of channel 2; emitter-collector voltage 7 V max.
14 COLLECTOR2 passive Phototransistor collector of channel 2; VCEO 55 V max, collector current 50 mA max.
15 EMITTER1 passive Phototransistor emitter of channel 1; emitter-collector voltage 7 V max.
16 COLLECTOR1 passive Phototransistor collector of channel 1; VCEO 55 V max, collector current 50 mA max.

Key specifications

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

CAD (KiCad official)

  • Symbol: TLP521-4
  • Footprint: Package_DIP:DIP-16_W7.62mm
  • 3D model: DIP-16 (KiCad packages3D, STEP)
  • 3D model files: tlp521-4-etched.step / tlp521-4-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlp521-4.step / tlp521-4.glb are the bare package body.

Provenance

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

  • Datasheet: TOSHIBA datasheet (9 pp, sha256 525c043d61ed3677, retrieved 2026-10-21, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF