DPAD50 TO-72 4L ROHS

Diode Arrays Overview

The DPAD50 is a picoampere diode from the PAD series, designed as a direct replacement for the Siliconix PAD series. It features a reverse breakdown voltage of at least -30V and a maximum reverse leakage current of -50pA at -20V. The device offers low reverse capacitance, typically 1.5pF to 2pF, making it suitable for high-impedance applications. It operates within a junction temperature range of -55°C to +150°C and supports continuous power dissipation up to 350mW in J/SSTPAD configurations.

Diode Arrays Feature Summary

• Direct replacement compatibility with legacy Siliconix PAD series components
• Ultra-low reverse leakage current specified in the picoampere range
• Low total reverse capacitance for minimal signal loading
• High operating junction temperature capability up to +150°C

Diode Arrays Applications

• Operational amplifier input protection against differential voltage limits
• Sample and hold circuit offset voltage reduction
• High-impedance sensor interface protection

Diode Arrays Procurement Notes

Verify the specific package variant (TO-72, SOT-23, or JPAD) required for your design, as the datasheet covers multiple form factors under the PAD series. Confirm that the -50pA leakage rating meets your system's noise floor requirements at the intended operating voltage. Ensure thermal derating calculations account for the 2.8mW/°C limit above 25°C if using the J/SSTPAD configuration.

Diode Arrays Selection Notes

Select this component when ultra-low leakage is critical, such as in precision analog front ends or charge amplifiers. The DPAD50 provides a robust alternative to older Siliconix parts without redesigning the footprint. Consider the TO-72 package for through-hole mounting or SOT-23 for surface mount needs. Verify that the -45V breakdown voltage of the standard PAD variant aligns with your circuit's transient protection requirements.

Diode Arrays Part Context

Linear Integrated Systems manufactures the PAD series of picoampere diodes, leveraging expertise from companies like Intersil and Union Carbide. These devices are engineered for precision semiconductor applications requiring minimal leakage currents. The series includes various packages and leakage grades to suit different isolation and protection needs in analog circuits.

Diode Arrays Replacement Considerations

This part is explicitly documented as a direct replacement for the Siliconix PAD series. No other substitute part numbers are listed in the official documentation.