MA4P1450-1091T

RF Diode Overview

The MA4P1450-1091T is a high power PIN diode from the MACOM MELF series, designed for switch and attenuator applications requiring high power handling and low distortion. It features a fully passivated chip with a thick I-region and long carrier lifetime. The device operates within a junction temperature range of -55°C to +175°C. Key electrical specifications include a maximum reverse voltage (VR) of 100 VDC, a typical total capacitance (CT) of 1.8 pF with a maximum of 2.5 pF, and a maximum series resistance (RS) of 0.5 Ω at 100 MHz. Power dissipation reaches 6 W without a heatsink.

RF Diode Feature Summary

• Incorporates a fully passivated PIN diode chip resulting in extremely low reverse bias leakage current.
• Features a thick intrinsic region and long carrier lifetime while maintaining low series resistance and capacitance values.
• Utilizes full face chip bonding to metal pins on both anode and cathode for low loss and symmetrical thermal paths.

RF Diode Applications

• Low Distortion Attenuators
• Surface Mount Switches
• Switch and attenuator applications from HF through UHF frequencies

RF Diode Procurement Notes

Verify the specific ordering suffix against official documentation before procurement. The 'T' suffix indicates tape and reel packaging, which requires a minimum order quantity of 500 pieces per reel. Confirm that the standard magnetic package meets your application requirements, as non-magnetic variants are designated by an 'NM' suffix in the base part number.

RF Diode Selection Notes

Select this component when designing circuits that require high power handling capabilities combined with low harmonic distortion. The 1091 MELF surface mount package is suitable for automated pick-and-place assembly processes. Ensure the design accommodates the specified maximum reverse voltage of 100 VDC and verify thermal management strategies for power dissipation up to 6 W without a heatsink.

RF Diode Part Context

This device belongs to the MACOM MA4P MELF & HIPAX Series of high power PIN diodes. The series utilizes semiconductor technology based on extensive experience in PIN diode design and wafer fabrication. These devices are characterized to ensure predictable and repeatable performance in demanding RF environments.

RF Diode Replacement Considerations

Within the same series, the MA4P4001F-1091T offers a higher voltage rating of 100 V but shares the same package style. For lower capacitance requirements, the MA4P7001F-1072T provides 0.7 pF typical capacitance but uses a different 1072 package footprint. Verify pin compatibility and electrical parameters when considering these alternatives.