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TLP521GB

Public Made by Adom

by adom

UMW Transistor, Photovoltaic Output Optoisolators, DIP-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TLP521GB

UMW · Transistor, Photovoltaic Output Optoisolators · DIP-4

TLP521GB from UMW, 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 LED anode of the gallium arsenide infrared emitting diode; the LED reverse voltage is rated at 5 V and forward current at 50 mA on the absolute maximum table, with 1 A allowed for 100 µs pulses at 100 pps.
2 Cathode passive LED cathode of the gallium arsenide infrared emitting diode; the LED reverse voltage is rated at 5 V on the absolute maximum table.
3 Emitter passive Phototransistor emitter; the emitter-collector voltage is rated at 7 V and the collector-emitter voltage at 55 V on the absolute maximum table.
4 Collector passive Phototransistor collector; the collector-emitter voltage is rated at 55 V (min) and the collector current at 50 mA on the absolute maximum table.

Key specifications

Parameter Value
Manufacturer UMW
Package DIP-4
Category Optoisolators
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
Supply Voltage VCC 5 24 V 3
Forward Current IF 16 25 mA 3
Collector Current IC 1 10 mA 3
Operating Temperature TOPR -25 85 °C 3
Pulse Forward Current IFP 1 A 100μs pulse, 100 pps 2
Reverse Voltage VR 5 V 2
Junction Temperature (LED) TJ 125 °C 2
Collector-Emitter Voltage VCEO 55 V 2
Emitter-Collector Voltage VECO 7 V 2
Collector Current IC 50 mA 2
Junction Temperature (detector) TJ 125 °C 2
Storage Temperature Range TSTG -55 125 °C 2
Operating Temperature Range TOPR -55 100 °C 2
Lead Soldering Temperature TSOL 260 °C 10 s 2
Isolation Voltage BVS 2500 Vrms AC, 1 min., R.H.≤60% (Note 1) 2
Forward Voltage VF 1.15 1.3 V IF=10mA 4
Reverse Current IR 10 µA VR=5V 4
Capacitance (LED) CT 30 pF V=0, f=1kHZ 4
Collector-Emitter Breakdown Voltage V(BR)CEO 55 V IC=0.5mA 4
Emitter-Collector Breakdown Voltage V(BR)ECO 6 V IE=0.1mA 4
Capacitance (Collector to Emitter) CCE 2 pF V=0, f=1MHz 4
Current Transfer Ratio IC/IF 50 600 % IF=5mA, VCE=5V 4
Current Transfer Ratio (Rank GB) IC/IF 100 600 % IF=5mA, VCE=5V, Rank GB 4
Saturated Current Transfer Ratio IC/IF(SAT) 30 % IF=1mA, VCE=0.4V 4
Saturated Current Transfer Ratio (Rank GB) IC/IF(SAT) 60 % IF=1mA, VCE=0.4V, Rank GB 4
Collector-Emitter Saturation Voltage VCE (sat) 0.4 V IC=2.4mA, IF=8mA 4
Isolation Voltage (AC, 1 minute) BVS 2500 Vrms AC, 1 minute 5
Isolation Voltage (AC, 1 second, in oil) BVS 5000 Vrms AC, 1 second, in oil 5
Isolation Voltage (DC, 1 minute, in oil) BVS 5000 Vdc DC, 1 minute, in oil 5
Isolation Resistance RS 1011 Ω VS=500V, R.H.≤ 60% 5
Capacitor (Input To Output) CS 0.8 pF VS=0, f =1MHz 5

CAD (KiCad official)

  • Symbol: TLP521GB
  • Footprint: Package_DIP:DIP-4_W7.62mm
  • 3D model: DIP-4 (KiCad packages3D, STEP)
  • 3D model files: tlp521gb-etched.step / tlp521gb-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlp521gb.step / tlp521gb.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (12 pp, sha256 eeb1e8e82b6682e1, 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