Overview
The BC856CMTF is a PNP epitaxial silicon transistor manufactured by Fairchild Semiconductor, now part of ON Semiconductor. This transistor is part of the BC856-BC860 series and is designed for switching and amplifier applications. It is suitable for automatic insertion in both thick and thin-film circuits. The BC856CMTF is known for its low noise characteristics, particularly in the BC859 and BC860 variants, making it a reliable choice for various electronic designs.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Collector-Base Voltage (VCBO) | -50 | V |
| Collector-Emitter Voltage (VCEO) | -45 | V |
| Emitter-Base Voltage (VEBO) | -5 | V |
| Collector Current (IC) | -100 | mA |
| Collector Power Dissipation (PC) | 310 | mW |
| Junction Temperature (TJ) | 150 | °C |
| Storage Temperature (TSTG) | -65 to 150 | °C |
| DC Current Gain (hFE) | 200 to 450 | |
| Current Gain Bandwidth Product (fT) | 150 | MHz |
| Output Capacitance (Cob) | 6 | pF |
| Noise Figure (NF) | 1.2 to 4 | dB |
Key Features
- Switching and amplifier applications
- Suitable for automatic insertion in thick and thin-film circuits
- Low noise characteristics, especially in BC859 and BC860 variants
- Complement to BC846-BC850 series
- SOT-23 package with tape and reel packing available
- hFE classification for different current gain ranges (A, B, C)
Applications
- General-purpose switching and amplification in electronic circuits
- Automotive and industrial control systems
- Consumer electronics such as audio equipment and home appliances
- Telecommunication devices and networking equipment
Q & A
- What is the BC856CMTF transistor used for?
The BC856CMTF is used for switching and amplifier applications in electronic circuits.
- What package type does the BC856CMTF come in?
The BC856CMTF comes in an SOT-23 package with tape and reel packing available.
- What are the absolute maximum ratings for the BC856CMTF?
The absolute maximum ratings include a collector-base voltage of -50V, collector-emitter voltage of -45V, and collector current of -100mA.
- What is the current gain range for the BC856CMTF?
The current gain (hFE) for the BC856CMTF ranges from 200 to 450.
- Is the BC856CMTF suitable for low noise applications?
Yes, the BC856CMTF, especially the BC859 and BC860 variants, are known for their low noise characteristics.
- What is the junction temperature limit for the BC856CMTF?
The junction temperature limit for the BC856CMTF is 150°C.
- What is the storage temperature range for the BC856CMTF?
The storage temperature range for the BC856CMTF is -65°C to 150°C.
- Is the BC856CMTF still in production?
No, the BC856CMTF is obsolete and no longer in production.
- What are some common applications of the BC856CMTF?
Common applications include general-purpose switching and amplification, automotive and industrial control systems, consumer electronics, and telecommunication devices.
- Where can I find substitutes for the BC856CMTF?
You can find substitutes for the BC856CMTF on distributor websites such as Digi-Key, Mouser, or by contacting the manufacturer for recommended alternatives.
