BF245A中文资料

BF245A/BF245B/BF245C

Absolute Maximum Ratings T a =25°C unless otherwise noted

Electrical Characteristics T a =25°C unless otherwise noted

Symbol Parameter

Value Units V DG Drain-Gate Voltage 30V V GS Gate-Source Voltage -30V I GF Forward Gate Current

10mA P D Total Device Dissipation @T A =25°C Derate above 25°C

3502.8mW mW/°C T J, T STG

Operating and Storage Junction Temperature Range

- 55 ~ 150

°C

Symbol

Parameter

Test Condition

Min.Max.

Units Off Characteristics

V (BR)GSS Gate-Source Breakdown Voltage V DS = 0, I G = 1μA -30V V GS

Gate-Source BF245A

BF245B BF245C V DS = 15V, I D = 200μA

-0.4-1.6-3.2-2.2-3.8-7.5V

V GS (off)Gate-Source Cut-off Voltage V DS = 15V, I D = 10nA -0.5

-8V I GSS

Gate Reverse Current

V GS = -20V, V GS = 0

-5nA

On Characteristics I DSS Zero-Gate Voltage Drain Current

BF245A BF245B BF245C V GS = 15V, V GS = 0

2612 6.51525mA

On Characteristics

g fs

Common Source Forward Transconductance

V GS = 15V, V GS = 0, f = 1KHz

3

6.5mmhos

BF245A/BF245B/BF245C

N-Channel Amplifiers

?This device is designed for VHF/UHF amplifiers.?Sourced from process 50.

1. Gate

2. Source

3. Drain

TO-92

1

BF245A/BF245B/BF245C

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LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.As used herein:

1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body,or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.

2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.

PRODUCT STATUS DEFINITIONS Definition of Terms

Datasheet Identification Product Status Definition

Advance Information

Formative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice.

Preliminary

First Production

This datasheet contains preliminary data, and

supplementary data will be published at a later date.Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.

No Identification Needed Full Production

This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.Obsolete Not In Production

This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor.The datasheet is printed for reference information only.

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