Dell Vostro 3660 3669 Owner' manuals Data sheets User guides
Summary
These N-Channel RF Amplifiers are specifically designed for enhancing signals in VHF/UHF frequency bands. This technical manual provides comprehensive details on the BF256A/BF256B/BF256C series, including absolute maximum ratings, detailed small signal characteristics (such as transconductance), and full electrical parameters. It is essential documentation for RF circuit designers and electrical engineers selecting components for high-frequency amplification applications.
Page 1 Text Content
BF256A/BF256B/BF256C
N-Channel RF Amplifiers This device is designed for VHF/UHF amplifiers. Sourced from process 50.
TO-92
1. Gate 2. Source 3. Drain
Absolute Maximum Ratings Ta=25°C unless otherwise noted Symbol Parameter Value Units VDG Drain-Gate Voltage VGS Gate-Source Voltage -30
IGF Forward Gate Current m A PD Total Device Dissipation @TA=25°C m W Derate above 25°C 2.8 m W/°C TSTG Operating and storage Temperature Range - 55 ~ 150 °C
Electrical Characteristics Ta=25°C unless otherwise noted Symbol Parameter Test Condition Min. Max. Units Off Characteristics V(BR)GSS Gate-Source Breakdown Voltage VDS = 0, IG = 1µA -30 VGS Gate-Source VDS = 15V, ID = 200µA -0.5 -7.5
VGS(off) Gate-Source Cutoff Voltage VDS = 15V, ID = 10n A -0.5 -8 IGSS Gate Reverse Current VGS = -20V, VGS = 0 -5 n A
On Characteristics IDSS Zero-Gate Voltage Drain Current
BF256A VGS = 15V, VGS = 0 m A
BF256B BF256C
Small Signal Characteristics gfs Common Source Forward Transconductance VDS = 15V, VGS = 0, f = 1KHz 4.5 mmhos
©2003 Fairchild Semiconductor Corporation Rev. A, June 2003
Page Summary Contents For Dell Vostro 3660 3669 Owner' manuals Data sheets User guides
Manual Details
| Brand | Dell |
|---|---|
| Pages | 3 |
| File Size | 24.44 KB |
| Published | July 15, 2026 |
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Frequently Asked Questions
Can this amplifier be used as a critical component in life support systems?
No, it is not authorized for use as critical components in life support devices or systems without express written approval from Fairchild Semiconductor Corporation.
What frequency bands are these RF amplifiers designed to operate within?
The BF256A/BF256B/BF256C N-Channel Amplifiers are designed specifically for VHF/UHF applications.
What is the absolute maximum total device dissipation at 25°C?
The highest rated total device dissipation @T =25°C listed is 350 mW.
In what physical package is this device supplied?
The transistor is provided in the TO-92 surface mount dimensionally defined package.