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2SD1991A PDF Datasheet

The 2SD1991A is Silicon NPN epitaxial planer type. It also consolidates and displays results from multiple manufacturers with the same part number and similar functionality.

Searched parts can be used interchangeably as substitutes for one another, But it's important to note that the parameters for each manufacturer may vary slightly.


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NO Part No Descripción Manufacturers
1 2SD1991A Silicon NPN epitaxial planer type

Transistor 2SD1991A Silicon NPN epitaxial planer type For general amplification Complementary to 2SB1320A 6.9±0.1 Unit: mm 1.05 2.5±0.1 (1.45) ±0.05 0.8 q q q 0.45 0.05 0.45 0.05 +0.1 s Absolute Maximum Ratings Parameter Collector to base voltage Collector to emitter voltage Emitter to base
Panasonic Semiconductor
Panasonic Semiconductor




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Part NoDescriptionManufacturersPDF
2SD1902 PNP/NPN Triple Diffused Planar Type Silicon Transistors

Ordering number:EN2538A PNP, NPN Triple Diffused Planar Type Silicon Transistors 2SB1266, 2SD1902 AF Power Amplifier Applications Features · Suitable for sets whose heighit is restricted. · Wide ASO (adoption of MBIT process). · High reliability. Package Dimensions unit:mm 2049B [2SB1266, 2SD1
Sanyo Semicon Device
Sanyo Semicon Device
datasheet 2SD1902 pdf
2SD1903 PNP/NPN Epitaxial Planar Silicon Transistors

Ordering number:EN2263A PNP, NPN Epitaxial Planar Silicon Transistors 2SB1267, 2SD1903 30V, 8A High-Current Switching Applications Applications · Suitable for relay drivers, high-speed inverters, converters and other general high-current switching. Features · Suitable for sets whose height is re
Sanyo Semicon Device
Sanyo Semicon Device
datasheet 2SD1903 pdf
2SD1904 PNP/NPN Epitaxial Planar Silicon Transistors

Ordering number:EN2264B PNP, NPN Epitaxial Planar Silicon Transistors 2SB1268, 2SD1904 High-Current Switching Applicatons Applications · Suitable for relay drivers, high-speed inverters, converters, and other general high-current switching applications. Features · Suitable for sets whose height
Sanyo Semicon Device
Sanyo Semicon Device
datasheet 2SD1904 pdf
2SD1999 PNP / NPN Epitaxial Planar TransistorsSanyo Semicon Device
Sanyo Semicon Device
datasheet 2SD1999 pdf
2SD1998 PNP / NPN Epitaxial Planar Silicon TransistorsSanyo Semicon Device
Sanyo Semicon Device
datasheet 2SD1998 pdf
2SD1997 Compact Motor Driver ApplicationsSanyo Semicon Device
Sanyo Semicon Device
datasheet 2SD1997 pdf
2SD1996 Silicon PNP epitaxial planer type(For low-frequency power amplification)Panasonic Semiconductor
Panasonic Semiconductor
datasheet 2SD1996 pdf


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