Description and Applications

The MA4E2508 SurMountä Anti-Parallel Diode Series are Silicon Low, Medium & High Barrier Schottky Devices fabricated with the patented Heterolithic Microwave Integrated Circuit (HMIC) process. HMIC circuits consist of Silicon pedestals which form diodes or via conductors embedded in a glass dielectric, which acts as the low dispersion, low loss, microstrip transmission medium. The combination of silicon and glass allows HMIC devices to have excellent loss and power dissipation characteristics in a low profile, reliable device.

The Surmount Schottky devices are excellent

choices for circuits requiring the small parasitics of a beam lead device coupled with the superior mechanical performance of a chip. The SurMount structure employs very low resistance silicon vias to connect the Schottky contacts to the metalized mounting pads on the bottom surface of the chip. These devices are reliable, repeatable, and a lower cost performance solution to conventional devices. They have lower susceptibility to electrostatic discharge than conventional beam lead Schottky diodes.

The multi-layer metalization employed in the fabrication of the Surmount Schottky junctions includes a platinum diffusion barrier, which permits all devices to be subjected to a 16-hour non-operating stabilization bake at 300°C.

The “ 0502 ” outline allows for Surface Mount placement and multi- functional polarity orientations.

The MA4E2508 Family of SurMount Schottky diodes are recommended for use in microwave circuits through Ku band frequencies for lower power applications such as mixers, sub-harmonic mixers, detectors and limiters. The HMIC construction facilitates the direct replacement of more fragile beam lead diodes with the corresponding Surmount diode, which can be connected to a hard or soft substrate circuit with solder.

Features

● Extremely Low Parasitic Capitance and Inductance

● Surface Mountable in Microwave Circuits, No Wirebonds Required

● Rugged HMIC Construction with Polyimide Scratch Protection

● Reliable, Multilayer Metalization with a Diffusion

● Barrier, 100 Stabilization Bake (300°C, 16 hours)

● Lower Susceptibility to ESD Damage

MA4E2508属于分立半导体产品 > 二极管 - 射频。Tyco Electronics制造生产的MA4E2508二极管 - 射频射频二极管是一种双端子半导体器件，只允许一个方向通过电流，而限制反方向的电流。该系列器件用于射频匹配电路以进行电子调谐。二极管类型包括 PIN 型、肖特基型和标准型，反向电压范围为 1 至 15,000 V，电流范围为 10 mA 至 20A。