2N3495

Overview

The Microchip Technology 2N3495 is a small-signal PNP silicon bipolar junction transistor designed for RF and general-purpose applications. It features a collector-emitter breakdown voltage of 120V and a continuous collector current rating of 100mA. The device operates with a transition frequency of 150MHz, suitable for high-frequency signal processing. Packaged in a TO-5 metal can (TO-205AA), it dissipates up to 600mW of power. This component is engineered for robust performance in through-hole mounting configurations within electronic circuits requiring reliable switching or amplification.

Feature Summary

• Utilizes silicon PNP construction for stable small-signal operation
• Supports high-frequency applications with a 150MHz transition frequency
• Provides high voltage tolerance with a 120V collector-emitter breakdown rating
• Housed in a durable TO-5 metal can package for thermal stability

Applications

• RF amplifier stages in communication equipment
• High-voltage switching circuits
• General-purpose signal processing modules
• Audio frequency amplification systems

Procurement Notes

Verify the manufacturer source carefully, as the 2N3495 designation is historically associated with multiple vendors including Central Semiconductor and Texas Instruments. Ensure the specific datasheet aligns with Microchip Technology specifications if required. Confirm the package type matches the TO-5 requirement for your PCB layout. Check for tin/lead plating options if lead-free compliance is not mandated. Validate electrical parameters against the official Microchip data sheet before integration.

Selection Notes

Select this component when a PNP transistor with high voltage capability and moderate current handling is required. The 120V rating makes it suitable for circuits exceeding standard low-voltage logic levels. Consider the TO-5 package size constraints during mechanical design. The 150MHz frequency response supports applications beyond basic audio frequencies. Evaluate thermal dissipation needs relative to the 600mW limit in enclosed environments.

Part Context

The 2N3495 belongs to the class of small-signal bipolar transistors widely used in analog electronics. Historically produced by various manufacturers, the part number represents a standardized specification for PNP silicon devices. Microchip Technology offers this component as part of its discrete semiconductor portfolio, maintaining compatibility with legacy designs while providing modern supply chain support for industrial and commercial applications.

Replacement Considerations

Equivalent parts include the 2N3495 from Central Semiconductor Corp and Texas Instruments. Verify pinout compatibility and absolute maximum ratings when substituting. Ensure the replacement device meets the 120V and 100mA requirements. Check transition frequency specifications to maintain circuit performance.