Nexperia lança diodos Zener de seleção A com a tolerância mais baixa do setor, de ±1%

Nexperia launches A-selection Zener diodes with the industry's lowest tolerance of ±1%

Essential semiconductor specialist Nexperia has announced the industry's first line of A-select Zener diodes. With a tolerance of just ±1%, the BZT52H-A (SOD123F) and BZX384-A (SOD323) series provide a higher accuracy voltage reference compared to the B (±2%) and C (±5%) variants .

Matching the growing demands of mobile, portable/wearable, automotive and industrial applications and meeting growing regulatory requirements, the two series are also available as Q portfolio devices.

“Nexperia’s range of A-selection Zener diodes covers all applications from 1.8 V to 75 V, while providing an accurate voltage reference with the smallest possible tolerance,” says Paula Stümer, product manager at Nexperia . “By replacing B- or C-selection devices with pad-compatible A-selection Zener devices, engineers can push the limits of the MOSFET, whether applied to the voltage limit for the gate-source path or the drain-port path , or choose from a wider range of suitable MOSFETs.”

Select A Zener diodes have a nominal working voltage range of 1.8 to 75 V (range E24). The devices feature ≤40W non-repeating peak reverse power dissipation, ≤250mW total power dissipation, and low differential thermal resistance.

The low tolerance provides higher voltage accuracy, which is especially important for test and measurement applications and allows engineers to replace more expensive voltage reference devices. Instead of protecting the MOSFET directly, a more economical alternative is to connect a Zener diode in parallel to the drain gate path. As soon as the Zener passes, the MOSFET turns on to prevent the drain source from avalanche collapse.

A-selection Zeners are also available as Q portfolio devices, meeting AEC-Q101 and ISO/TS16949 automotive quality standards. The focus of these standards is to meet the stress testing and quality management system qualification requirements of automotive OEMs.

However, customer demands continue to evolve and more non-automotive applications require additional quality-related services such as the Production Part Approval Process (PPAP) and increased longevity. Another differentiator between standard and Q portfolio devices is the Product Change Notifications (PCN) period, which is extended from 90 days, in accordance with JEDEC requirements, to 180 days.

Furthermore, all pieces have a minimum longevity of 10 years and a shelf life of more than two years.

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