NTE278 参数 Datasheet PDF下载

NTE278

Silicon NPN Transistor

Broadband RF Amp

Description:

The NTE278 is a silicon NPN transistor in a TO39 type package designed specifically for broadband

applications requiring good linearity. Usable as a high frequency current mode switch to 200mA.

Features:

D

Low Noise Figure: NF = 3.0dB Typ @ f = 200MHz

D

High Current–Gain Bandwidth Product: f

T

= 1200MHz Min @ I

C

= 50mA

Absolute Maximum Ratings:

Collector–Emitter Voltage, V

CEO

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V

Collector–Base Voltage, V

CBO

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V

Emitter–Base Voltage, V

EBO

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3V

Continuous Collector Current, I

C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400mA

Continuous Base Current, I

B

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400mA

Total Device Dissipation (T

C

= +75°C, Note 1), P

D

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5W

Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mW/°C

Storage Temperature Range, T

stg

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +200°C

Note 1. Total Device Dissipation at T

A

= +25°C is 1 Watt.

Electrical Characteristics:

(T

C

= +25°C unless otherwise specified)

Parameter

OFF Characteristics

Collector–Emitter Sustaining Voltage

V

CEO(sus)

I

C

= 5mA, I

B

= 0

V

CER(sus)

I

C

= 5mA, R

BE

= 10Ω, Note 2

Collector Cutoff Current

I

CEO

I

CEX

Emitter Cutoff Current

I

EBO

V

CE

= 15V, I

B

= 0

V

CE

= 15V, V

BE

= –1.5V, T

C

= +150°C

V

CE

= 35V, V

BE

= –1.5V

V

BE

= 3V, I

C

= 0

20

40

–

–

–

–

–

–

–

–

–

–

–

–

20

5

5

100

V

V

µA

mA

mA

µA

Symbol

Test Conditions

Min

Typ

Max

Unit

Note 2. Pulsed through a 25mH inductor; 50% Duty Cycle.