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The ROHM 7655A is a bipolar digital transistor designed for general-purpose switching and amplification applications. Below are its key specifications, descriptions, and features:

Specifications:

• Type: Digital Transistor (Built-in Resistors)
• Polarity: NPN
• Maximum Collector-Base Voltage (VCBO): 50V
• Maximum Collector-Emitter Voltage (VCEO): 50V
• Maximum Emitter-Base Voltage (VEBO): 5V
• Maximum Collector Current (IC): 100mA
• Power Dissipation (PD): 200mW
• DC Current Gain (hFE): 100 (min) to 400 (max)
• Built-in Resistors:
• R1 (Base Resistor): 10kΩ
• R2 (Base-Emitter Resistor): 10kΩ
• Operating Temperature Range: -55°C to +150°C
• Package Type: SOT-23 (Miniature Surface-Mount)

Description:

The ROHM 7655A integrates a bias resistor network directly into the transistor, simplifying circuit design by reducing external component count. It is optimized for low-power switching and signal amplification in compact electronic devices.

Features:

• Space-saving design (SOT-23 package)
• Simplified circuit board layout (built-in resistors)
• High reliability (suitable for industrial applications)
• Low saturation voltage for efficient switching
• Compatible with automated assembly processes

This transistor is commonly used in consumer electronics, automotive systems, and industrial control circuits where space and efficiency are critical.

(Note: Always refer to the official ROHM datasheet for precise electrical characteristics and application guidelines.)