Manufacturer Part Number

TLP292(GB-TPL,E(T)

Description

Phototransistor output optoisolator. Supports both AC and DC input. 3.75kV isolation rating for safety. Designed for signal isolation and voltage separation. Maximum output current is 50mA. Load voltage rating is 80V. Small SOIC-4 package suitable for compact circuit layouts. ROHS compliant for environmental safety. Ideal for digital interfaces, controllers, and industrial systems.

Specifications

Isolation Voltage: 3.75kV Vrms

Load Voltage: 80V

Output Current: 50mA max

Forward Voltage (Vf): 1.25V

Forward Current (If): 50mA

VCE Saturation: 300mV @ 2.4mA, 8mA

Rise Time: 2us

Fall Time: 3us

Operating Temperature: -55℃ to +125℃

Total Power Dissipation: 200mW

Current Transfer Ratio (CTR) Min: 50%

Current Transfer Ratio (CTR) Max/Saturation: 600%

Number of Outputs: 1

Input Type: AC, DC

Output Type: Phototransistor

Package / Case: SOIC-4

Packaging: Tape & Reel (TR)

Device Structure

Optoisolator with one input LED and one phototransistor output. Housed in an SOIC-4 package for easy mounting on PCBs. Pin arrangement simplifies PCB layout. Designed for surface-mount technology (SMT).

Performance Characteristics

High CTR up to 600% for efficient signal transmission. Fast switching times with 2us rise and 3us fall. Strong isolation protects circuits from voltage spikes up to 3.75kV. Stable operation under wide temperature range (-55℃ to +125℃). Low VCE saturation for better digital compatibility.

Application Environments

Suitable for industrial automation, medical equipment, motor control, PLCs, signal isolation in microcontrollers, and data communication interfaces. Works well in environments where electrical isolation and noise immunity are required.

Selection Guidelines

Choose this model if you need high isolation voltage (3.75kV), a wide temperature range, and a compact design. Good fit for replacing larger DIP optoisolators with surface-mount devices. Ensure 80V load voltage and 50mA output current match your requirements. Check package compatibility (SOIC-4) with your PCB design. Confirm required CTR for application needs.

Usage Considerations

Confirm proper PCB footprint for SOIC-4 package. Observe input polarity and rated current/voltage to prevent device damage. Ensure operating temperature remains within specified limits. Allow safe isolation gaps on layout for high voltage isolation. Protect input and output circuits against transients beyond rated levels.

Potential Equivalent/Replacement Models

There are alternative optoisolator models with similar ratings. Examples include:

TLP291 (Toshiba, similar CTR and isolation)

PC817 (Sharp, Everlight, Vishay, lower CTR, DIP package, check for SOIC versions)

VO617A (Vishay, similar CTR, check package compatibility)

LTV-817S (Lite-On, check input/output ratings and package)

If none of these meet your needs, contact Ariat-Tech sales team for further equivalents or customized sourcing.

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