Diodes Incorporated Launches RobustISO Family of Dual-Channel Digital Isolators
On January 20, 2026, Diodes Incorporated (Nasdaq: DIOD) made headlines in the semiconductor industry with the announcement of their new RobustISO™ family of high-performance dual-channel digital isolators, the API772x series. Designed to enhance safety and reliability in high-voltage systems, these products are positioned to meet the growing demands in critical applications such as industrial automation, new energy power systems, and data center power supplies.
1. Unmatched Isolation Ratings
The API772x digital isolators are engineered to meet both reinforced and basic isolation requirements, adhering to various international standards, including VDE, UL, and CQC. They boast an impressive isolation rating of 5,000VRMS for one minute, in accordance with UL 1577, and an 8,000VPK isolation rating as per DIN EN IEC 60747-17 (VDE 0884-17). Notably, the maximum surge isolation voltage reaches an astounding 12,800VPK, setting the API772x apart from competitive offerings that typically provide breakdown voltages less than 10kV.
2. Longevity and Reliability
One of the standout features of the RobustISO digital isolators is their capacitive isolation barrier, which exceeds 25µm in thickness and is projected to have an operational lifetime of over 40 years. This longevity is achieved through the innovative ON-OFF keying (OOK) modulation scheme, which effectively transfers digital data across the capacitive barrier. This level of durability is particularly vital for applications in stringent environments where reliability is paramount.
3. High Performance and Versatility
The API772x series supports data rates of up to 100Mbps, making it a versatile solution for various transmission protocols. Its design integrates strong electromagnetic immunity and low emissions, with a minimum common-mode transient immunity (CMTI) of 150kV/µs. This robust anti-electromagnetic-interference (EMI) capability ensures reliable signal transmission, which is crucial in environments subject to electrical noise.
4. Flexible Supply and Configuration
Operating over a wide supply voltage range of 2.5V to 5.5V, the API772x digital isolators are designed for low-power consumption, typically drawing just 2.1mA per channel at 1Mbps. They feature a low propagation delay of 11ns (typ.), ensuring timely signal transfer. Additionally, the devices come with flexible digital channel-direction configurations: the API7720 features both channels in the same direction, while the API7721 and API7722 have channels operating in opposite directions. The devices are also differentiated by their default output levels, with "F" suffix models defaulting to a low output, while others default to high.
5. Availability and Pricing
The API772x series is supplied in the SO-8W (Type CJ) package and is competitively priced, starting from $0.46 in 1,000-piece quantities. This pricing strategy is likely to attract significant interest from manufacturers looking to enhance the isolation capabilities of their products.
6. Conclusion
With the introduction of the RobustISO family of digital isolators, Diodes Incorporated has positioned itself at the forefront of the semiconductor market, addressing the critical needs of high-voltage systems. The combination of high isolation ratings, longevity, performance, and competitive pricing makes the API772x series a compelling choice for industries reliant on robust isolation solutions. As demand for reliable electronic components continues to rise, Diodes Incorporated appears well-equipped to meet these challenges head-on.
For additional information, please visit Diodes Incorporated's website.
