6 NEWS Issue 4 2025 Power Electronics Europe Power Electronics Europe Anritsu Company has announced it has launched the MN4765B-0140 O/E Reference Calibration Module, said to be the world’s fastest and first traceable solution to support the testing demands of next-generation data centres and the explosive growth of Artificial Intelligence (AI) and Machine Learning. As data centres transition from 224 Gbps to 448 Gbps per lane to achieve total data rates like 1.6T, the required bandwidth for electrical-optical (E/O) modulators and optical-to-electrical (O/E) photodetectors now exceeds 130 GHz. The new MN4765B-0140 is engineered to meet this critical need, pushing the measurement frontier to 145 GHz. The company says the MN4765B-0140 is a monumental step forward for high-speed component verification: World’s First 145 GHz Reference Photodetector: It offers the widest commercially available frequency range from 70 kHz to 145 GHz for O/E calibration at the 1550 nm wavelength, enabling the high-confidence characterization of cutting-edge E/O and O/E devices. Traceability to 145 GHz: Anritsu secured traceability for the new module to a recognized National Metrology Institute. This is a crucial differentiator, as existing standards from NIST are limited to 110 GHz, making the MN4765B-0140 the only solution providing verifiable measurement accuracy at these extreme bandwidths. Unique, Cost-Effective System Solution: When integrated with Anritsu’s VectorStar ME7838D 145 GHz Vector Network Analyzer (VNA), the combination creates the world’s only complete, traceable, and flexible system for testing the entire high-speed opto-electronic ecosystem, including TOSA, ROSA, BOSA, and Coherent Optical Sub-Assemblies (COSA). Anritsu says its solution provides significant advantages over competing systems, which typically forces customers into a more expensive solution lacking the necessary 145 GHz reference calibration module entirely. “The AI revolution is demanding a massive leap in data centre interconnect speeds, making the 145 GHz bandwidth non-negotiable for 1.6T deployment,” said a spokesperson for Anritsu Company. “The MN4765B-0140 eliminates measurement uncertainty at these critical frequencies. Coupled with the flexible and futureproof VectorStar VNA platform, our customers gain a powerful, cost-effective tool that secures their investment by offering a simple upgrade path and superior measurement speed.” https://www.anritsu.com/en-gb/ Toshiba Electronics Europe has announced it has expanded its range of Zener diodes with the launch of a further 15 products. These devices will be used to protect the power lines of semiconductor devices and equipment from switching surges and long duration overvoltage pulses. They will be useful in a wide range of applications, including consumer and industrial. The company says the new CMZBxxA series products feature a planar structure and are designed as successors to the mesa-structured CMZBxx series products, which have been announced as reaching end of life (EOL). The innovative planar structure enables a low reverse current and high reliability as the PN junction is protected with oxide film. Additionally, fine process adjustments ensure a reduced variation in the Zener voltage between devices. The new products feature protection against transient overvoltage pulses, and also against long duration overvoltage pulses, which are usually difficult for ESD protection diodes to handle. In power lines of equipment, switching surges with long pulse widths of up to milliseconds may be generated when the circuit switches. The new Zener diodes can protect semiconductor devices from switching surges and overvoltage pulses close to DC. Compared to the CMZBxx series, the new products can improve the specification range of Zener voltage from ±10% (typ.) to ±5% (typ.) and the maximum reverse current (IR) from 10 A to 0.5 A. These improvements help to simplify equipment design and reduce overall power consumption. Additionally, as the new CMZBxxA devices use the same M-FLAT (2.4mm x 4.7mm x 0.98mm) package as the existing CMZBxx series, upgrading does not require any PCB layout changes. The 15 products in the lineup cover a range of Zener voltage (Vz) from 12V (typ.) to 51V (typ.), supporting a wide range of commonly used voltages. The new products help to improve equipment reliability by providing surge protection for power supply lines. https://www.toshiba.eu/ Toshiba launches a range of 15 new Zener diodes for protection of power lines Anritsu Breaks Bandwidth Barrier with World’s First 145 GHz O/E Calibration Module, Accelerating 1.6T Data Center Evolution
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