2SC3919-AC

$0.09

Description：SMALL SIGNAL BIPOLAR TRANSTR NPN
Series：-

SKU:ddb1c2a28c5e Category: Single, Pre-Biased Bipolar Transistors Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：SMALL SIGNAL BIPOLAR TRANSTR NPN
Series：-
Mfr：onsemi
Package：Bulk
Resistors Included：R1 and R2
Transistor Type：NPN - Pre-Biased
Current - Collector (Ic) (Max)：500 mA
Voltage - Collector Emitter Breakdown (Max)：50 V
Resistor - Base (R1)：2.2 kOhms
Resistor - Emitter Base (R2)：2.2 kOhms
DC Current Gain (hFE) (Min) @ Ic, Vce：50 @ 50mA, 5V
Vce Saturation (Max) @ Ib, Ic：300mV @ 2.5mA, 50mA
Current - Collector Cutoff (Max)：500nA
Frequency - Transition：250 MHz
Power - Max：300 mW
Grade：-
Qualification：-
Mounting Type：Through Hole
Package / Case：3-SSIP
Supplier Device Package：3-SPA

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2SC3919-AC

Overview

The 2SC3919-AC is a single NPN pre-biased bipolar junction transistor manufactured by onsemi. It integrates internal biasing resistors to simplify circuit design and reduce component count. The device is rated for a collector-emitter voltage of 50 V and a continuous collector current of 500 mA. Power dissipation is specified at 300 mW, with a transition frequency of 250 MHz. It is housed in the 3-SPA surface-mount package, suitable for applications requiring compact signal switching and amplification solutions.

Feature Summary

Integrates internal biasing resistors to minimize external component requirements
Designed for high-speed signal switching and amplification tasks
Utilizes a compact 3-SPA surface-mount package for space-constrained layouts

Applications

Signal switching circuits
Audio amplification stages
General-purpose small-signal processing

Procurement Notes

Verify the manufacturer part number against official onsemi documentation to ensure authenticity. Confirm that the device meets RoHS compliance standards as indicated in the datasheet. Check for any specific ordering suffixes that may affect electrical characteristics or packaging. Ensure storage conditions align with semiconductor handling guidelines to prevent damage prior to assembly.

Selection Notes

Select this component when a compact NPN solution with integrated biasing is required. Consider the 50 V rating and 500 mA current limit for appropriate load matching. Evaluate the 3-SPA package dimensions against board space constraints. Compare transition frequency specifications against signal speed requirements to ensure adequate performance margins.

Part Context

This component belongs to the family of single pre-biased bipolar transistors offered by onsemi. These devices are engineered to replace multiple discrete components, including the transistor and base biasing resistors, into a single package. This integration reduces PCB area and simplifies assembly processes compared to traditional discrete BJT configurations.