Description
Product Overview
The TLP352 DIP8 Optoisolator from TRAIEMTEWA is engineered to provide precise and dependable electrical isolation between low‑voltage control circuits and high‑voltage power stages. Housed in a standard 8‑pin DIP package, the device offers a compact footprint that fits easily onto printed circuit boards without requiring special mounting hardware. Its internal LED and phototransistor pair are optimized for fast response times, making it suitable for high‑speed switching applications where timing accuracy is critical.
Designed with a focus on durability, the optoisolator incorporates a robust polymer encapsulation that protects the internal components from moisture, dust, and temperature extremes. The device is rated for an isolation voltage of up to 5 kV, ensuring safe operation even in harsh industrial environments. Electrical characteristics such as forward current, collector‑emitter voltage, and CTR (current transfer ratio) are tightly controlled to meet the stringent requirements of modern automation and safety systems.
TRAIEMTEWA employs a rigorous manufacturing process that includes automated wafer handling, precision laser trimming, and extensive burn‑in testing. Each batch undergoes statistical process control to verify that key parameters remain within specified tolerances. The result is a component that delivers consistent performance over its entire lifecycle, reducing the risk of unexpected failures in mission‑critical applications.
Quality assurance is further reinforced by compliance with international standards such as IEC 60747‑5‑2 and RoHS. The optoisolator is fully screened for lead content and other hazardous substances, making it a responsible choice for environmentally conscious designs. Documentation includes detailed datasheets, application notes, and reliability reports, providing engineers with the information needed to integrate the part confidently into their designs.
Usage
In industrial automation, the TLP352 is frequently used to isolate microcontroller I/O lines from high‑power motor drives, ensuring that noise and voltage spikes do not propagate back into the control logic. Its fast switching capability supports pulse‑width modulation (PWM) schemes commonly employed in variable‑frequency drives (VFDs) and servo motor controllers. The device’s low input current also helps to minimize power consumption in battery‑operated equipment.
Automotive applications benefit from the optoisolator’s ability to protect sensitive electronic control units (ECUs) from the harsh electrical environment of a vehicle. Whether used in airbag deployment circuits, anti‑lock braking systems (ABS), or engine management modules, the TLP352 provides a reliable barrier that helps meet automotive safety standards. Its compact DIP‑8 form factor allows for easy placement on board layouts that are already densely populated with other components.
Consumer electronics, such as power adapters, LED drivers, and audio amplifiers, also make use of the TLP352 to separate low‑voltage control sections from high‑voltage power sections. This separation reduces the likelihood of ground loops and improves overall system stability. The optoisolator’s high CTR ensures that even small control signals are accurately transmitted across the isolation barrier, which is essential for precise dimming or volume control functions.

Why Choose Us
TRAIEMTEWA has built a reputation for delivering high‑quality electronic components that meet the exacting standards of OEMs and system integrators worldwide. Our optoisolators are manufactured in state‑of‑the‑art facilities that adhere to ISO 9001 quality management systems, guaranteeing that each component is produced with consistent precision and reliability.
We understand the importance of supply chain stability for large‑scale production runs. That is why we maintain strategic inventory levels and offer flexible lot sizes, including the 10‑piece lot featured in this listing. Our packaging is designed to protect the components during transit and storage, with anti‑static bags and moisture‑absorbing desiccants included to preserve performance.</n
Customer support is a cornerstone of our service philosophy. Our technical assistance team is available to answer design‑related questions, provide application guidance, and help troubleshoot any issues that may arise during integration. In addition, we stand behind our products with a money‑back guarantee, reflecting our confidence in the durability and performance of the TLP352 optoisolator.
Key Features
- High isolation voltage up to 5 kV for robust safety protection
- Fast response time suitable for high‑speed switching and PWM control
- Compact DIP‑8 package simplifies PCB layout and reduces board space
- Durable polymer encapsulation resists moisture, dust, and temperature extremes
- Dedicated customer support and money‑back guarantee for peace of mind
FAQ
What is the typical forward current for the LED inside the TLP352?
The LED forward current is typically specified at 20 mA, which provides a good balance between brightness and power consumption while maintaining a high current transfer ratio.
Can the TLP352 be used in automotive safety systems?
Yes, the optoisolator meets automotive reliability standards and is suitable for applications such as airbag control, ABS modules, and engine management where isolation and fast response are essential.
What is the recommended operating temperature range?
The device is rated for operation from –40 °C to +85 °C, allowing it to function reliably in both indoor industrial settings and outdoor automotive environments.
How does the CTR vary with temperature?
The current transfer ratio typically remains within the specified range across the full temperature range, though it may experience a slight decrease at the extreme high‑temperature end. Detailed temperature‑dependent CTR curves are provided in the datasheet.
Is there a bulk discount for larger orders?
We offer tiered pricing for larger quantities. Please contact our sales team for a customized quote based on your required volume.




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