MMBTRC105SS Overview
The MMBTRC105SS is a surface-mount Silicon NPN transistor designed for high-speed switching and general-purpose amplification. Its compact SOT-23 package supports efficient PCB layout in compact industrial and consumer electronics. With a maximum collector current rating of 100mA and a collector-emitter voltage up to 40V, it offers robust performance for signal processing and low-power switching applications. This transistor provides reliable operation with a high gain bandwidth product and low saturation voltage. Sourced from a reputable IC Manufacturer, it is ideal for engineers and sourcing specialists looking for a cost-effective and versatile transistor solution.
MMBTRC105SS Technical Specifications
| Parameter | Specification |
|---|---|
| Transistor Type | NPN Silicon |
| Package | SOT-23 Surface Mount |
| Collector-Emitter Voltage (Vceo) | 40 V |
| Collector Current (Ic) | 100 mA |
| Gain Bandwidth Product (fT) | 100 MHz (typical) |
| DC Current Gain (hFE) | 100 to 300 (varies by test conditions) |
| Power Dissipation (Pd) | 350 mW |
| Transition Frequency | 100 MHz |
| Operating Temperature Range | -55??C to +150??C |
MMBTRC105SS Key Features
- High-speed switching: Enables fast response times in switching applications, reducing overall system latency.
- Compact SOT-23 package: Allows dense PCB layouts, saving valuable space in compact electronic designs.
- Wide voltage rating: Supports collector-emitter voltages up to 40V, suitable for a broad range of signal amplification tasks.
- Reliable gain characteristics: Offers consistent DC current gain ensuring predictable transistor performance across operating conditions.
Typical Applications
- Switching circuits in power management systems where fast transistor response and low power dissipation are critical for efficiency and reliability.
- Signal amplification in audio and sensor interface circuits requiring stable gain over temperature variations.
- High-frequency oscillators and low noise amplifiers benefiting from the transistor??s high transition frequency.
- General-purpose transistor replacement in industrial control electronics to improve reliability and reduce component footprint.
MMBTRC105SS Advantages vs Typical Alternatives
This transistor offers a favorable balance of voltage rating, current capability, and switching speed compared to typical alternatives. Its low saturation voltage and high gain bandwidth product enhance efficiency and signal integrity in switching and amplification applications. The small SOT-23 package supports miniaturization trends in electronics, providing an advantage in space-constrained designs while maintaining robust thermal performance and reliability.
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MMBTRC105SS Brand Info
The MMBTRC105SS is manufactured by a leading semiconductor company known for high-quality discrete components optimized for industrial and consumer electronics. This product line emphasizes reliability and consistency, meeting stringent industry standards for surface-mount transistors. The brand is recognized globally for its comprehensive portfolio of transistors, diodes, and integrated circuits that support rapid prototyping, scalable production, and long-term supply availability.
FAQ
What is the maximum collector current rating for this transistor?
The transistor supports a maximum collector current of 100mA, making it suitable for low to moderate power switching and amplification tasks in various electronic circuits.
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Can this transistor operate at high frequencies?
Yes, the device features a transition frequency (fT) of approximately 100 MHz, which is adequate for many high-speed switching and RF signal amplification applications.
What package type does this transistor come in, and how does it benefit PCB design?
It is housed in a compact SOT-23 surface-mount package. This small form factor enables high-density PCB layouts, reduces parasitic inductances, and supports automated assembly processes.






