The 2SC5658 R/Q is a silicon NPN epitaxial planar transistor manufactured by Rohm Semiconductor. It is designed for high-frequency amplifier applications, specifically targeting VHF and UHF bands. The 'R/Q' suffix suggests it meets specific reliability or automotive standards. It boasts a high transition frequency and is designed to deliver good gain at high frequencies.

Applications:

• High-frequency amplifiers: Used in VHF/UHF communication systems and test equipment.
• Oscillators: Can be incorporated into oscillator circuits for generating high-frequency signals.
• Mixers: Functions as a mixer in frequency conversion circuits.
• RF front-ends: Suitable for use in the front-end stages of radio receivers.
• Automotive applications: Potentially used in car radios or communication systems within vehicles, indicated by the 'Q' suffix.

Features:

• High Transition Frequency (fT): Enables operation at high frequencies.
• High Gain: Provides good signal amplification.
• NPN Epitaxial Planar Transistor: Offers reliable and consistent performance.
• Small Package: Allows for compact circuit designs.
• Potentially AEC-Q101 Qualified: The 'Q' suggests possible automotive qualification.

Benefits:

• Efficient High-Frequency Operation: High transition frequency ensures optimal performance at VHF and UHF frequencies.
• Increased Signal Strength: High gain boosts the signal level for improved processing.
• Compact Design: Small package minimizes board space requirements.
• Reliable Performance: Rohm Semiconductor's quality ensures consistent and stable operation.
• Durability in Automotive Environments: If AEC-Q101 qualified, it offers enhanced reliability in automotive applications.

Additional Details:

The 2SC5658 R/Q typically features a collector-emitter voltage (VCEO) of 15V, a collector current (IC) of 80mA, and a power dissipation (PC) of 300mW. Its transition frequency (fT) is typically around 9 GHz. The transistor is housed in a small surface-mount package. The 'R' could indicate a specific rank of gain or other electrical parameters. The R/Q suffix indicates specific manufacturing or testing requirements; refer to the Rohm Semiconductor datasheet for precise details and application guidelines for this specific variant of the 2SC5658 transistor. Checking the datasheet will clarify the AEC-Q101 qualification status and any specific automotive-related performance characteristics.