Datasheet > BB149

BB149

更新时间： 2024-10-16 22:39:27

品牌	Logo	应用领域
乐山 - LRC		二极管
页数	文件大小	规格书
2页	53K
描述
UHF variable capacitance diode

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中文翻译

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技术参数
数据手册

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BB149 技术参数

生命周期：	Contact Manufacturer	Reach Compliance Code：	unknown
ECCN代码：	EAR99	风险等级：	5.75
二极管类型：	VARIABLE CAPACITANCE DIODE	最大重复峰值反向电压：	30 V
子类别：	Varactors	表面贴装：	YES
Base Number Matches：	1

BB149 数据手册

LESHAN RADIO COMPANY, LTD.

UHF variable capacitance diode

BB 149

FEATURES

DESCRIPTION

· Excellent linearity

The BB149 is a variable capacitance diode,

fabricated in planar technology, and encap-

sulated in the SOD323 very small plastic SMD

package.

· Excellent matching to 1% DMA

· Very small plastic SMD package

· C28: 2.1 pF; ratio 9

· Low series resistance.

APPLICATIONS

The excellent matching performance is

achieved by gliding matching and a direct

matching assembly procedure. The unmatched

type, BB159 has the same specification.

· Electronic tuning in UHF television

tuners

SOD– 323

· VCO.

MARKING CODE:P9

CATHODE

ANODE

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL

PARAMETER

MIN.

–

MAX.

UNIT

V_R

I_F

continuous reverse voltage

continuous forward current

storage temperature

–

°C

stg

–55

+150

+125

operating junction temperature

°C

ELECTRICAL CHARACTERISTICS

T^j= 25 °C unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

VR = 30 V; see Fig.2

V^R= 30 V; Tj = 85 °C; see Fig.2

diode series resistance f = 470 MHz; note 1

MIN. MAX. UNIT

I^R

reverse current

–

Ω

200

0.75

r^s

–

C^d

diode capacitance

capacitance ratio

capacitance matching

VR = 0.5 V; f = 1 MHz; see Figs 1 and 3

V^R= 28 V;f = 1 MHz; see Figs 1 and 3

f = 1 MHz

1.9

8.2

19.5 pF

2.25 pF

C^{d( 1V )}

C^{d (28V )}

Cd( 19V )

C^{d (28V )}

∆Cd

f = 1 MHz

1.2

–

VR = 0.5 to 28 V; in a sequence of 4 diodes

C^d

(gliding)

V^R= 0.5 to 28 V; in a sequence of 15 diodes

(gliding)

–

Note

1. V^Ris the value at which Cd = 9 pF.

BB149–1/2

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