MA4P7437-287T

RF Diode Overview

The MA4P7437-287T is a single silicon PIN diode from the MACOM SMPP series, housed in an SOT-23 (Case Style 287) surface-mount package. It features a thick intrinsic region designed for low distortion in attenuator circuits. Key electrical specifications include a reverse voltage rating of 200 V, a maximum total capacitance of 0.35 pF at 50 V and 1 MHz, and a series resistance of 6.0 Ω at 10 mA and 100 MHz. The device supports a forward current of 150 mA DC, operates within a junction temperature range up to +175°C, and handles 30 dBm RF CW incident power with a thermal resistance of 45°C/W.

RF Diode Feature Summary

• Thick intrinsic region engineered to minimize signal distortion in attenuator applications
• High reverse voltage capability suitable for demanding control circuit environments
• Low parasitic capacitance optimized for high-isolation switching performance
• Lead-free plastic surface mount construction compliant with RoHS directives

RF Diode Applications

• Current controlled attenuator circuits
• Automatic Gain Control (AGC) systems
• Infrastructure and CATV microwave control applications

RF Diode Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type and packaging configuration. Ensure that the selected variant matches the required lead time and availability status for your production schedule. Cross-reference the part number with the latest datasheet revision to confirm compliance with current environmental standards and material specifications before finalizing procurement orders.

RF Diode Selection Notes

Select this component when a high reverse voltage rating combined with low distortion characteristics is required for attenuator designs. The thicker intrinsic region distinguishes it from lower-resistance or lower-capacitance variants in the same series. Evaluate the thermal derating coefficients and power dissipation limits relative to your specific operating environment to ensure reliable performance under continuous wave conditions.

RF Diode Part Context

This device belongs to the MACOM SMPP series of surface mount plastic PIN diodes. It shares the SOT-23 package form factor with other series members like the MA4P7436 and MA4P7433 but utilizes a distinct I-region thickness to achieve its specific electrical profile. The series offers various configurations including common cathode, common anode, and series tee arrangements for flexible circuit integration.

RF Diode Replacement Considerations

The MADP-007437 series serves as the direct functional equivalent within the same product family. Verify pinout compatibility and thermal characteristics when substituting between the MA4P and MADP designations.