Krc105s

Updated October 6, 2026

Overview

Product sourcing insights & recommendations

23 来源

The KRC105S is an NPN epitaxial planar silicon digital transistor (Bias Resistor Transistor) primarily used for switching and interface driver circuits in automotive and consumer electronics. Lcsc Keccorp

Technical Product Overview

The KRC105S is designed to simplify circuit design by integrating two bias resistors into a single surface-mount package (SOT-23). Lcsc

Key Specifications: 50V Collector-Emitter Voltage ($V_{CEO}$), 100mA Collector Current ($I_C$), and 200mW Power Dissipation. Lcsc Lcsc
Integrated Resistors: It features an input resistor ($R_1$) of 2.2 kΩ and a base-emitter resistor ($R_2$) of 47 kΩ. Alltransistors Lcsc
High Frequency: A transition frequency ($f_T$) of 200 MHz allows for high-speed switching applications. Digikey Littlediode

Market Trends & Insights

Stable Availability: The part is currently in active production by KEC (Korea Electronics). Major distributors like LCSC show robust stock levels (over 20,000 units), indicating a healthy supply chain. Lcsc Jlcpcb
Low-Cost Sourcing: Wholesale prices are extremely competitive, dropping from $0.03/unit for small quantities to as low as $0.017/unit for bulk orders of 21,000+ pieces. Digipart Jlcpcb
Market Demand: While specific search volume for "KRC105S" is niche, broader demand for NPN transistors (e.g., 2N2222, 2N3904) remains high, with "npn transistor" showing a 23.65% growth trend on retail platforms.
Key Applications: Widely adopted in automotive battery chargers, home appliances, and LCD/OLED TVs due to its AEC-Q qualified and halogen-free variants. Keccorp

I have identified 2 verified B2B listings for direct sourcing and 30+ specialized electronic component suppliers capable of providing this model or equivalents via BOM services.

Here is the technical and market overview for the KRC105S transistor. You can continue with:

Sources & References

23 sources cited · Verified industry data & reports

KRC105S-RTK/P | Single Bipolar Transistors | KEC

LCSC Electronics

Single Bipolar Transistors by KEC. Features - and 200MHz. From $0.0171, 20400 in stock. Transistor for Switching and Interface/Driver Circuit Applications

KRC105S-RTK/P | KEC Datasheet

SnapMagic

See KRC105S-RTK/P datasheet by or download in pdf. . Explore a symbol, footprint, 3D model and download for free on SnapMagic Search. Starting from $0.02

KRC105S Datasheet(PDF) - KEC(Korea Electronics)

ALLDATASHEET.COM

SWITCHING APPLICATION. INTERFACE CIRCUIT AND DRIVER CIRCUIT APPLICATION. FEATURES • With Built-in Bias Resistors. • Simplify Circuit Design. • Reduce a Quantity ...

KRC105S-RTK/P KEC Discrete Semiconductors

Jotrin Electronics

It features a SOT23 package, designed for PCB integration. The comprehensive technical datasheet for KRC105S-RTK/P is available for download directly on our ...

KRC105S Datasheet(PDF) - TECH PUBLIC Electronics co ...

ALLDATASHEET.COM

Part #: KRC105S. Download. File Size: 1MbKbytes. Page: 4 Pages. Description: Digital Transistor. Manufacturer: TECH PUBLIC Electronics co LTD.

50 pcs Transistor (BJT) KRC105S-RTK/P SOT-23 ...

Amazon.com

Product summary presents key product information. Shop OnceAgain · Brand: ElectronicNova. 50 pcs Transistor (BJT) KRC105S-RTK/P SOT-23 (SOT-23-3) KRC105S-RTK/P.

Krc105s

Overview

Technical Product Overview

Market Trends & Insights

Krc105s Transistor

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Sources & References