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Transistor BF197 NPN, 100mA TO-92
The BF197 is a high-linearity NPN silicon transistor in a TO-92 package, optimized for video and RF intermediate frequency (IF) amplification. Widely used in television tuners, FM receivers, and analog signal processing circuits.
BF197 Video/RF Transistor - High Linearity for IF Amplification
The BF197 is a specialized NPN transistor engineered for high-frequency video and RF applications. It delivers excellent linearity and stability, making it the ideal choice for intermediate frequency amplifiers in television tuners, FM receivers, and precision analog circuits where signal fidelity is critical.
Functions & Applications
- High Linearity: Clean signal transfer in IF amplifiers without distortion.
- Wide Bandwidth: Optimized for video (up to MHz range) and FM IF stages at 10.7MHz.
- Stable Gain: Fixed-gain operation ideal for cascade amplification stages.
- TO-92 Package: Economical through-hole plastic package, easy integration in vintage and modern circuits.
Technical Specifications
| Parameter | Value / Specification |
|---|---|
| Transistor Type | BJT (Bipolar Junction Transistor) |
| Polarity / Channel | NPN |
| Package / Case | TO-92 |
| Max Collector Current (Ic) | 100mA |
| Collector-Emitter Voltage (Vceo) | 45V |
| Power Dissipation (Pd) | 250mW |
| Mounting Type | Through-Hole (THT) |
Frequently Asked Questions
Q: Can the BF197 be used in FM receiver IF stages?
A: Yes, the BF197 is specifically designed for FM IF amplification at 10.7MHz, delivering excellent gain and linearity for FM tuner circuits.
Q: What is the complementary PNP part for the BF197?
A: The complementary PNP transistor with similar RF/video performance characteristics is the BF177.
Note: Price refers to one (1) piece. The component is shipped in bulk without individual packaging.
- Transistor Type
- BJT (Bipolar Junction Transistor)
- Transistor Polarity / Channel
- NPN
- Transistor Case Style
- TO-92