NTC Thermistor: Vishay Intertechnology, Inc. (NYSE: VSH) has introduced the ISOA200 , a new AEC-Q200 qualified thick film power resistor housed in the compact, low-profile SOT-227B package. Designed for mounting on a heatsink, this innovative device offers exceptional performance with high pulse handling capability and power dissipation up to 200 W at an 80 °C bottom case temperature.
What sets the ISOA200 apart is its optional integration of an NTC thermistor for internal temperature monitoring and pre-applied Phase Change Thermal Interface Material (PC-TIM) for more efficient mounting 6. These features make it ideal for demanding applications in automotive, industrial, avionics, military, and space (AMS) sectors.
Cost-Effective and Lightweight Design for Diverse Applications
The ISOA200 is built on an exposed alumina substrate , replacing traditional metal tabs. This design reduces both costs and weight , making it a practical choice for applications such as precharge , discharge , active discharge , and snubber resistors. Its ability to handle high-energy pulses—up to 140 J for 0.1 seconds —and multi-pulsed testing ensures reliability under extreme conditions.
For industries requiring custom solutions, Vishay offers additional testing options tailored to specific application needs. This flexibility enhances the resistor’s versatility across various use cases.
Streamlined Integration and Enhanced Performance
The optional AEC-Q200 qualified NTC thermistor , combined with temperature cycle testing , simplifies designs by integrating temperature monitoring directly into the resistor package. This eliminates the need for external components, saving valuable board space. Additionally, the pre-applied PC-TIM streamlines installation during production, reducing assembly time and improving thermal performance.
With high power and energy dissipation capabilities , the ISOA200 minimizes the need for additional power components, further lowering system costs while enhancing overall efficiency.
Technical Specifications and Features
The ISOA200 boasts a wide range of technical specifications, ensuring adaptability to diverse requirements:
- Resistance Range : 10 Ω to 1 MΩ
- Tolerances : ± 5 % and ± 10 %
- Temperature Coefficient of Resistance (TCR) : ± 100 ppm/K and ± 150 ppm/K
- Maximum Operating Voltage : 1500 V
- Operating Temperature Range : -55 °C to +150 °C
- Dielectric Strength : 4000 Vrms
The device also features a non-inductive design and can include two different resistors , providing additional customization options. Compliant with RoHS standards , the ISOA200 aligns with global environmental regulations.
Availability and Lead Times
Samples and production quantities of the ISOA200 are available now, with lead times of approximately 12 weeks . This ensures quick access to the resistor for manufacturers looking to integrate it into their systems.
Why Choose the Vishay ISOA200?
The ISOA200 stands out as a versatile solution for high-power applications, combining compact design , high performance , and advanced features like optional NTC thermistors and PC-TIM . Whether you’re working in automotive, industrial, or AMS sectors, this resistor delivers unparalleled efficiency, reliability, and cost savings.
For more information about the ISOA200 and other Vishay products, visit Vishay’s official website .
Key Takeaways
- The ISOA200 is an AEC-Q200 qualified thick film power resistor in a compact SOT-227B package.
- It offers high pulse handling capability , power dissipation up to 200 W , and optional NTC thermistor integration for temperature monitoring.
- Built on an alumina substrate , the device reduces costs and weight , making it suitable for automotive, industrial, and AMS applications.
- The ISOA200 simplifies designs, saves board space, and lowers system costs with its advanced features and high energy dissipation.
- Samples and production quantities are available now, with lead times of 12 weeks.
By leveraging the ISOA200 , engineers can achieve superior performance and efficiency in their high-power designs while meeting stringent industry standards.
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