2N5555_D74Z

Overview

The 2N5555_D74Z is an N-channel RF amplifier and small-signal junction field-effect transistor (JFET) manufactured by onsemi. It is housed in a TO-92 package with three pins: Gate, Source, and Drain. The device is designed for electronic switching applications, specifically low on-resistance analog switching. Key electrical parameters include a drain-gate voltage of 25 V, a gate-source breakdown voltage of -25 V, and a zero-gate voltage drain current (IDSS) ranging from 15 mA to 30 mA at VDS = 15V. The maximum total device dissipation is 350 mW at 25°C ambient temperature.

Feature Summary

• Designed primarily for electronic switching applications such as low on resistance analog switching
• Sourced from process 50

Applications

• Electronic switching applications
• Low on resistance analog switching

Procurement Notes

Verify the manufacturer origin carefully, as the D74Z suffix indicates Fairchild Semiconductor sourcing within the onsemi portfolio. Confirm the specific pinout configuration matches the TO-92 standard layout (Gate, Source, Drain) required by your circuit design. Ensure thermal management aligns with the specified junction-to-ambient resistance values during operation.

Selection Notes

Select this component when low on-resistance analog switching is required. Consider the IDSS range of 15 mA to 30 mA for biasing requirements. Verify that the operating voltage does not exceed the 25 V drain-gate or -25 V gate-source limits. The TO-92 package suits through-hole mounting applications where compact size is necessary but high power dissipation is not the primary constraint.

Part Context

The 2N5555 series includes complementary devices like the 2N5556 (P-channel). The D74Z suffix typically denotes a specific manufacturing process or packaging variant sourced from Fairchild Semiconductor facilities now part of onsemi. This part belongs to the general-purpose JFET category, distinct from high-power or specialized RF amplifiers despite its classification.

Replacement Considerations

Direct substitutes may include other N-channel JFETs in TO-92 packages with similar IDSS and voltage ratings, such as the 2N5457 or 2N5485, provided the on-resistance and capacitance values meet the specific application requirements. Always verify pin compatibility and absolute maximum ratings before substitution.