2SA1941-O

Product Overview

2SA1941-O is a Toshiba high-power PNP bipolar junction transistor (BJT) designed for audio amplifier output stages and high-speed switching applications. This transistor features a 140V collector-emitter voltage rating, 10A collector current capability and 100W power dissipation capacity in a TO-3P(N) through-hole package. With excellent linearity, high current capability and reliable thermal performance, it is widely used in power amplifier circuits, audio equipment, industrial control systems and high-power electronic applications. 

Key Features

• Manufacturer: Toshiba Electronic Devices & Storage Corporation

• Part Number: 2SA1941-O

• Product Type: PNP bipolar junction transistor (BJT)

• Semiconductor Type: Silicon power transistor

• Polarity: PNP

• Collector-Emitter Voltage (VCEO): -140V

• Collector Current (IC): -10A

• Collector Power Dissipation (PC): 100W

• DC Current Gain (hFE): 55 to 160 range

• Transition Frequency (fT): 30MHz typical

• Collector-Emitter Saturation Voltage: -2.0V maximum

• Package Type: TO-3P(N) / SC-65-3

• Mounting Type: Through-hole mounting

• Number of Pins: 3 pins

• Operating Junction Temperature: Up to 150°C

• Complementary Device: 2SC5198 NPN transistor

• Typical Applications: Audio power amplifiers, output stages, high-power switching circuits and industrial electronic equipment

• Ordering Note: Buyers should verify transistor polarity, gain rank, package type and latest Toshiba datasheet before production use.

Applications

2SA1941-O is widely used in high-power analog and switching circuits requiring high current capability and stable operation. Typical applications include audio amplifier output stages, professional audio equipment, power amplifier modules, industrial control systems, power switching circuits, repair and replacement projects, and other electronic designs requiring complementary transistor pairs. 

Quality & Sourcing

Antrex Electronics can support 2SA1941-O sourcing with stock availability checks, RFQ quotation, package confirmation, date code review and shipment arrangement. For project-based purchasing, buyers can provide quantity, target price, required delivery date, packaging requirements and application information for faster quotation support.

For quality control, Antrex Electronics can help arrange product photos, label verification, visual inspection and third-party testing support when required. OEMs, EMS providers, repair centers and electronic component buyers are welcome to submit BOM lists or hard-to-find semiconductor requirements for sourcing assistance.