LB421

更新时间： 2024-01-05 00:11:06

品牌	Logo	应用领域
POLYFET		晶体晶体管栅
页数	文件大小	规格书
2页	57K
描述
SILICON GATE ENHANCEMENT MODE RF POWER LDMOS TRANSISTOR

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LB421 数据手册

polyfet rf devices

LB421

General Description

Silicon VDMOS and LDMOS

transistors designed specifically

for broadband RF applications.

Suitable for Military Radios,

Cellular and Paging Amplifier Base

Stations, Broadcast FM/AM, MRI,

Laser Driver and others.

SILICON GATE ENHANCEMENT MODE

RF POWER LDMOS TRANSISTOR

35.0Watts Push - Pull

Package Style LB

"Polyfet" process features

HIGH EFFICIENCY, LINEAR

HIGH GAIN, LOW NOISE

ROHS COMPLIANT

low feedback and output capacitances,

resulting in high F transistors with high

input impedance and high efficiency.

25 C )

ABSOLUTE MAXIMUM RATINGS ( T =

Total

Device

Dissipation

Junction to

Case Thermal

Resistance

Maximum

Junction

Temperature

DC Drain

Current

Drain to

Gate

Voltage

Drain to

Source

Voltage

Gate to

Source

Voltage

Storage

Temperature

200

13.5

230 Watts

0.75 C/W

-65 C to 150 C

36 V

20 V

RF CHARACTERISTICS (

35.0 WATTS OUTPUT )

SYMBOL PARAMETER

MIN

TYP

MAX

UNITS TEST CONDITIONS

Gps

Common Source Power Gain

Idq = 0.40 A, Vds =

V, F =

MHz

12.5

500

Idq =

Drain Efficiency

0.40

A, Vds =

MHz

Idq = 0.40

VSWR

Load Mismatch Tolerance

10:1

Relative

ELECTRICAL CHARACTERISTICS ( EACH SIDE )

SYMBOL PARAMETER

MIN

TYP

MAX

UNITS TEST CONDITIONS

Drain Breakdown Voltage

Ids = 25.00 mA, Vgs = 0V

Vds =

Bvdss

Idss

1.0

Zero Bias Drain Current

Gate Leakage Current

12.5 V, Vgs = 0V

Igss

Vgs

Vds = 0V Vgs = 30V

Gate Bias for Drain Current

Ids = 0.30 A, Vgs = Vds

2.7

Forward Transconductance

Saturation Resistance

Mho

Vds = 10V, Vgs = 5V

Rdson

Ohm

Vgs = 20V, Ids = 8.00 A

0.28

17.00

80.0

5.0

Idsat

Ciss

Crss

Coss

Saturation Current

Amp

Vgs = 20V, Vds = 10V

12.5 Vgs = 0V, F = 1 MHz

Common Source Input Capacitance

Common Source Feedback Capacitance

Common Source Output Capacitance

Vds =

12.5 Vgs = 0V, F = 1 MHz

60.0

REVISION 10/01/2007

POLYFET RF DEVICES

1110 Avenida Acaso, Camarillo, Ca 93012 Tel:(805) 484-4210 FAX: (805) 484-3393 EMAIL:Sell@polyfet.com URL:www.polyfet.com

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