What are the primary applications for the TLP291-4?

It is primarily used in Programmable Logic Controllers (PLCs), switching power supplies, and simplex/multiplex data transmission systems.

What are the key electrical specifications?

It features a 2500 Vrms isolation voltage, 80 V collector-emitter breakdown voltage, and a wide operating temperature range from -55°C to 110°C.

What should engineers review before using this component?

Engineers should review the CTR (Current Transfer Ratio) rank (Blank or GB) to ensure the gain meets application needs and verify the soldering profile for the SO16 package.

What is the sourcing status of the TLP291-4?

The TLP291-4 is currently in active production with high availability, making it a reliable choice for long-term industrial designs.

What is the pinout of TLP291-4(GB-TP,E)?

Use the TLP291-4(GB-TP,E) datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about TLP291-4(GB-TP,E) pinout to locate pins, power rails, and interface signals before layout.

TLP291-4(GB-TP,E) Datasheet, Specs, Alternatives & ECAD | Toshiba Semiconductor and Storage

AI summary

The TLP291-4 is a 4-channel optoisolator in a compact SO16 package, ideal for industrial control and power supply applications requiring high-density isolation.

Best for

Industrial automation
PLC input modules
Power supply feedback loops

Avoid if

Applications requiring >2500 Vrms isolation
High-power switching beyond transistor ratings

Check before use

CTR rank requirements
Soldering temperature limits

Key specifications

Channels: 4
Isolation: 2500 Vrms
VCEO: 80 V
Temp Range: -55°C to 110°C

Compliance & Environment

RoHS: RoHS Compliant
REACH: -
MSL: 1 (Unlimited)
ECCN: EAR99
HTSUS: 8541.49.8000

Application

IndustrialPower

Datasheet

96fd5d89424770eb13c4fadf1b93a238_1809101122_TOSHIBA-TLP291-4-GB-TP-E-T_C60900.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for TLP291-4(GB-TP,E): KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

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3D Model

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Where to Buy

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Alternative components

TLP293-4(GB-TP,EToshiba Semiconductor and Storage

An upgrade path from the same manufacturer with improved isolation voltage, temperature range, and a wider CTR.

Needs validation

Design and risk insights

Questions & answers

The TLP291-4 is a 4-channel photocoupler from Toshiba, consisting of GaAs infrared LEDs optically coupled to phototransistors, housed in a thin SO16 package.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the TLP291-4?+×

What are the primary applications for the TLP291-4?+×

What are the key electrical specifications?+×

What should engineers review before using this component?+×

What is the sourcing status of the TLP291-4?+×

What is the pinout of TLP291-4(GB-TP,E)?+×