C1124 Transistor Datasheet Better Jun 2026
Stop squinting at blurry images. Here is where to find a universally compatible, searchable datasheet:
Whether you are restoring a vintage stereo receiver like the iconic Pioneer SX-828 or designing a robust discrete preamplifier, understanding the exact parameters of the is vital to achieving better, more reliable circuit performance. This comprehensive technical article breaks down its specifications, explores its physical packaging, and reviews the absolute best cross-reference replacements available on the market today. 1. Core Datasheet Specifications
Most standard general-purpose small-signal NPN transistors, such as the BC547 (45 V) or the 2N2222 (30–60 V), will fail instantly if exposed to high-voltage rails. The C1124 withstands up to continuous across its collector-emitter junction ( VCEOcap V sub cap C cap E cap O end-sub
The is an NPN silicon bipolar junction transistor (BJT) that has carved out a niche in high-quality audio amplification and switching applications. Renowned for its reliability in 1980s and 1990s Japanese consumer audio gear, this TO-220 packaged component is often sought after for amplifier repairs and vintage restorations. c1124 transistor datasheet better
Why do engineers and hobbyists search for a "better" datasheet? Here are the pain points:
The essential metrics from the official Littlediode 2SC1124 Data Sheet include: : NPN Material : Silicon (Si) Maximum Collector-Base Voltage ( VCBOcap V sub cap C cap B cap O end-sub ) : 160 V Maximum Collector-Emitter Voltage ( VCEOcap V sub cap C cap E cap O end-sub ) : 140 V Maximum Emitter-Base Voltage ( VEBOcap V sub cap E cap B cap O end-sub ) : 5 V Maximum Continuous Collector Current ( ICcap I sub cap C ) : 1 A (1000 mA) Maximum Collector Power Dissipation ( PCcap P sub cap C
If you're looking for a "better" transistor, consider the following: Stop squinting at blurry images
A classic TO-126 transistor. While common, check the voltage rating, as some BD139 variants only reach 80V compared to the C1124’s 140V.
To evaluate the C1124 transistor's performance, we'll compare it with other similar transistors:
) : (depending on heat sinking and exact variant) Transition Frequency ( fTf sub cap T ) : 120 MHz to 140 MHz Minimum DC Current Gain ( hFEh sub cap F cap E end-sub ) : 50 Maximum Operating Junction Temperature ( Tjcap T sub j ) : 200 °C Why These Metrics Matter Renowned for its reliability in 1980s and 1990s
Because it handles up to 140V, it’s a workhorse for linear power supply regulators in older CRT monitors and lab equipment.
PNP transistor for symmetric push-pull configurations in Class AB audio output stages. High Voltage Handling: cap V sub cap C cap E cap O end-sub
The is a vintage, high-performance NPN silicon epitaxial planar bipolar junction transistor (BJT) originally manufactured by major electronics companies like Sony and Toshiba . Widely recognized in the repair and restoration community, this component is prominently featured in classic high-fidelity audio gear—such as the pre-driver stages of the iconic Pioneer SX-828 receiver —as well as vintage radio frequency (RF) equipment.
The 140V collector-emitter voltage rating means this small-to-medium power transistor can easily handle high-voltage rails found in classic audio gear without breaking down. Additionally, its transition frequency ( fTf sub cap T
A 1992 Kenwood stereo amplifier uses 2SC1124 as the voltage regulator pass transistor. The regulator is dead, and the transistor is shorted.