MLP7102-0503 PIN Diode

Introduction

The MACOM MLP7102-0503 is a PIN diode in the MLP71xx-0503 series, designed for RF limiter circuits and receiver-protection functions. It is specified for operation from 100 MHz to beyond 20 GHz, making it relevant where a protection element must cover a wide RF frequency span.

The device is specially processed for passive or active limiter use. Its design uses intrinsic regions with differing thicknesses and capacitances to provide selectable threshold and leakage-power behavior while maintaining power-handling capability.

What it does

In an RF receiver path, a limiter diode is used to help protect sensitive circuitry from excessive RF energy. The MLP7102-0503 is intended for this role in passive or active limiter implementations, with receiver protection identified for military, commercial, and industrial equipment.

Its stated frequency range extends from 100 MHz to beyond 20 GHz. The diode’s thin intrinsic regions support fast turn-on behavior, while the differing intrinsic-region characteristics are intended to provide variable threshold and leakage-power levels. The product description also identifies good power-handling capability for limiter applications.

The specified operating-temperature range is −55°C to +150°C, supporting use in equipment exposed to substantial environmental temperature variation. A leakage-current feature of 100 nA at 80% of minimum VB is also specified.

Applications

Potential applications directly aligned with the stated function include:

• RF receiver input protection circuits
• Passive RF limiter networks
• Active RF limiter designs
• Wideband receiver front ends operating from 100 MHz to beyond 20 GHz
• Military, commercial, and industrial RF equipment requiring receiver protection

Design considerations

The MLP7102-0503 should be evaluated as part of the complete limiter network rather than as a general-purpose signal diode. Threshold and leakage behavior are associated with the device’s intrinsic-region thickness and capacitance characteristics, so circuit topology and the required protection behavior are important integration considerations.

Designers should also account for the intended RF operating range, from 100 MHz to beyond 20 GHz, and the specified −55°C to +150°C operating-temperature range. The component has an MSL-1 moisture-sensitivity classification, which is relevant to assembly and handling planning.

Availability and further information

Further technical information is available through the Mouser Electronics source link and the datasheet link provided on this page.