Transistor 2SC1740 NPN, 0.15A TO-92

Transistor 2SC1740 NPN, 0.15A TO-92

Transistors

Reference: TR2SC1740

Part.No: 2SC1740

€0.60

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The 2SC1740 is a general-purpose NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Widely used for small-signal amplification and low-power switching in audio, logic circuits and DIY electronics projects.

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Description
Product Details

2SC1740 Small Signal Transistor – Reliable Performance for Amplification & Switching

The 2SC1740 is a versatile NPN transistor valued for its stable performance in audio amplifiers, logic circuits and general switching applications. With good current gain and straightforward biasing characteristics, it remains a trusted choice for hobbyists and professionals alike.

Functions & Applications

Stable Current Gain: Consistent hFE performance suitable for linear amplification and signal processing.
Standard TO-92 Package: Through-hole design, perfect for breadboards and universal PCBs.
Audio-Grade Linearity: Low noise floor, ideal for preamplifiers and audio mixer stages.
Breadboard-Friendly: Easy prototyping and integration into existing circuits.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-92
Collector-Emitter Voltage (Vceo)	50V
Max Collector Current (Ic)	150mA
Power Dissipation (Pd)	400mW
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: Is the 2SC1740 suitable for audio preamplifier circuits?
A: Yes, its low noise characteristics and stable gain make it an excellent choice for microphone preamplifiers and line-level audio stages.

Q: What is a recommended base resistor value for switching a 5V load?
A: For a 5V logic input and Ic around 100mA, a 1kΩ to 4.7kΩ base resistor typically provides reliable saturation without excessive base current.

Note: Price refers to one (1) piece. The component is shipped in bulk without individual packaging.

Transistor Type: BJT (Bipolar Junction Transistor)
Transistor Polarity / Channel: NPN
Transistor Case Style: TO-92

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