MPQ2222 PBFREE

Overview

The MPQ2222 PBFREE is an NPN silicon quad transistor manufactured by Central Semiconductor Corp. It integrates four independent transistors within a single TO-116 (DIP-14) package, designed for general-purpose amplifier and switching applications. The device features a collector-emitter voltage of 40 V and a continuous collector current of 500 mA per transistor. Total power dissipation reaches 1.9 W across the package, with a thermal resistance of 66 °C/W. Electrical characteristics include a transition frequency of 200 MHz and specific saturation voltages under defined test conditions.

Feature Summary

• Integrates four independent NPN silicon transistors in a single component
• Designed for general-purpose linear amplification and digital switching
• Utilizes a standard 14-pin through-hole DIP package

Applications

• General purpose amplifier circuits
• Digital logic switching applications
• Multi-channel signal processing modules

Procurement Notes

Verify the specific plating configuration upon ordering, as the base part number allows for either lead-free or tin/lead supply depending on availability. Confirm that the 'PBFREE' suffix is explicitly required to ensure compliance with lead-free material specifications. Cross-reference the manufacturer's current material composition data sheet to validate substance percentages and environmental compliance status before finalizing procurement contracts.

Selection Notes

Select this component when multiple identical NPN switching functions are required within a compact footprint. The TO-116 package accommodates standard through-hole assembly processes. Ensure circuit designs account for the total package power dissipation limits rather than individual transistor ratings. Verify that the 40 V collector-emitter voltage rating aligns with the maximum operating voltages of the target application environment.

Part Context

This quad transistor variant consolidates four discrete units into one package, reducing board space compared to using separate components. The MPQ2222A represents a variant with higher breakdown voltage capabilities, specifically regarding collector-base voltage. Both versions share identical pin configurations and mechanical dimensions, facilitating direct interchangeability in existing layouts where voltage margins permit.

Replacement Considerations

Direct replacements must match the TO-116 14-pin form factor and contain four independent NPN transistors. Verify that substitute devices meet or exceed the 40 V collector-emitter voltage and 500 mA current requirements. Check electrical parameters such as hFE and saturation voltage to ensure compatibility with the original circuit design constraints.