2SA1837 PNP Epitaxial Silicon Transistor: 2SA1837 Power, Datasheet pdf and Equivalents

The 2SA1837 is a  PNP  epitaxial silicon transistor and is available in the same TO-220F plastic package. It's also primarily intended for power amplification and use in audio power amplifier output stages. However, it may also be used as a switch and can drive a load of approximately -1A with a maximum load voltage of -230V from collector to emitter.

2SA1837 Pinout

Toshiba Semiconductor and Storage 2SA1837(F,M) technical specifications, attributes, parameters and parts with similar specifications to Toshiba Semiconductor and Storage 2SA1837(F,M).

• Collector-Emitter Volt (Vceo): -230V

• Collector-Base Volt (Vcbo): -230V

• Collector Current (Ic): -1.0A

• hfe: 100-320 @ -100mA

• Power Dissipation (Ptot): 20W 

• Transition Frequency (ft): 70MHz

• Type: PNP

2SA2182, MJE5851, MJE15035, MJE5850, KTA1837, MJE15033, 2SC4793

• High power audio amplifier applications

• Audio amplifier stages

• Motor Driver Circuits

• Radio and RF Circuits

• Drive load of up to -1A

2SA1837 is a  PNP power transistor with a high frequency. A transistor  is a semiconductor device whose primary function is to amplify a weak signal; the 2SA1837 is a PNP-configured power transistor, 

The only variation is in their topology, such as Bipolar PNP, NPN, and similarly FET with N-channel and P-channel, as well as how they are designed, such as common emitter, common base, common collector, or otherwise.

The 2SA1837 transistor has three pins; current flows from the emitter to the collector pin in this PNP transistor.  while the base pin controls the overall flow rate. It has the property of turning on at very low voltages, in contrast to NPN transistors, which turn on at high voltages.

The active region of the 2SA1837 high power transistor.  in which the transistor functions as an amplifier, is the most adaptable working zone. The saturation or ON region is the part of a transistor's operation where it functions as a closed or complete circuit. The last region is the OFF or cutoff region, which looks like an open circuit.

Because the 2SA1837 is primarily intended for audio amplification, it will work well in this application. It will operate well in high-power audio amplifiers and their output stages, as previously stated. Its NPN complementary 2SC4793 transistor is usually seen in audio amplifiers. However, it is not required to be used with NPN complementary all of the time and can be used alone or with other NPN transistors in the audio amplifier.

Aside from that, it can be used as a switch and can drive up to -1A of load. It can drive a variety of loads with its -1A load driving capacity, including relay switches, high-power transistors, motors, bulbs, LEDs, and even a portion of a circuit.

Always operate this transistor 20 percent below its absolute maximum ratings to get long-term performance. Because the transistor's maximum collector current is -1A, do not drive a load that draws more than -800mA. Because the maximum collector to emitter voltage is -230V, do not drive a load more than -180V and do not store or use the transistor at temperatures higher than -55°C and lower than +150°C.

2SA1837 Dimensions

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Download datasheets and manufacturer documentation for Toshiba Semiconductor and Storage 2SA1837(F,M).