C1124 Transistor Datasheet — Better [2021]

The MPSA42 is a popular high-voltage NPN alternative, though it has a much lower current rating (approx. 500mA) than the C1124.

A "better" datasheet means finding a modern, searchable PDF, a cross-reference guide, or a substitute transistor with a more complete documentation set.

These values represent the physical limits of the transistor. Exceeding them will cause permanent damage to the component. 150 V Collector-Emitter Voltage ( VCEOcap V sub cap C cap E cap O end-sub ): 150 V Emitter-Base Voltage ( VEBOcap V sub cap E cap B cap O end-sub ): 5 V Collector Current ( ICcap I sub cap C ): 50 mA (Continuous) Collector Power Dissipation ( PCcap P sub cap C ): 1 W (at a ambient temperature of 25°C) Junction Temperature ( Tjcap T sub j ): 150°C Electrical Characteristics

Let's break down the key specifications of the 2SC1124, as understanding them is your first and most critical step.

The modern Fairchild/Onsemi equivalent to the 2SC2690. It boasts highly linear DC current gain ( hFEh sub cap F cap E end-sub c1124 transistor datasheet better

Have a repair question about a specific circuit using the C1124? Leave a comment below.

An excellent alternative if space permits a larger TO-126 package. It handles up to , completely eliminating thermal stress issues.

: A modern, widely available high-voltage NPN transistor (often in TO-126) used for similar video/high-voltage tasks. BF459 : Another common video output transistor.

For general low-power tasks where 1A is not fully utilized, standard NPNs like the 2N2222 or 2N3904 are easier to source but have much lower voltage limits. Substitution Tips The MPSA42 is a popular high-voltage NPN alternative,

Finding an exact original C1124 in the wild is tough, and vintage inventory can command high prices. If you are troubleshooting an old circuit, looking for a "better" substitute means identifying a component that meets or exceeds the original’s tolerances while offering better thermal stability and lower noise. Go to product viewer dialog for this item.

2SC1124 - The Datasheet Archive

| Parameter | Symbol | Value | Unit | Notes | | :--- | :--- | :--- | :--- | :--- | | | $V_CBO$ | 150 | V | The max voltage the transistor can handle when off. | | Collector-Emitter Voltage | $V_CEO$ | 100 | V | The max voltage between collector and emitter. | | Emitter-Base Voltage | $V_EBO$ | 6 | V | Low tolerance; be careful with drive circuits. | | Collector Current | $I_C$ | 5 | A | Max continuous current it can sink. | | Peak Collector Current | $I_C(pulse)$ | 8 | A | For short bursts (pulse applications). | | Power Dissipation | $P_C$ | 50 | W | Max power it can dissipate (requires a heatsink). | | DC Current Gain | $h_FE$ | 40 - 100 | - | Determines amplification factor. |

The search for a "c1124 transistor datasheet" will lead you to the full part number: . The "2S" prefix is a Japanese standard, where "2S" indicates a bipolar transistor, and "C" denotes an NPN-type material for high-frequency applications. These values represent the physical limits of the transistor

When evaluating a datasheet to find a better replacement for the C1124, prioritize the following parameters: 1. Breakdown Voltage ( VCEOcap V sub cap C cap E cap O end-sub VCBOcap V sub cap C cap B cap O end-sub A better datasheet will feature a VCEOcap V sub cap C cap E cap O end-sub

A modern NPN complement often used in similar audio circuits.

This comprehensive guide breaks down the detailed breakdown voltage, current capacity, packages, and optimal replacement components for the C1124. Core Specifications Breakdown