MA4ST081 [TE]

Surface Mount Hyperabrupt Wide-Band Tuning Varactors; 表面贴装超突变的宽带调谐变容二极管


型号：	MA4ST081
厂家：	TE CONNECTIVITY
描述：	Surface Mount Hyperabrupt Wide-Band Tuning Varactors 表面贴装超突变的宽带调谐变容二极管二极管变容二极管光电二极管
文件：	总3页 (文件大小：90K)
中文：	中文翻译
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Surface Mount Hyperabrupt

Wide-Band Tuning Varactors

MA4ST079 thru 083

V3.00

SOT-23

Features

●

Low Cost

●

Very High Capacitance Ratio from 1 to 8 Volts

●

Surface Mount Package

●

High Quality Factor

●

Useful for Battery Applications

●

SPC Monitored Ion Implantation for Excellent

C-V Repeatability

●

Singles and Common Cathode Pairs

●

Available in Tape and Reel

Description

The MA4ST079 through MA4ST083 series of silicon

hyperabrupt junction tuning varactors is produced with

ion implantation and advanced epitaxial growth tech-

niques. These diodes have thermal oxide passivation, and

feature very high capacitance ratio and quality factor.

They are well suited for use from the sub-HF through

UHF frequency range. The standard capacitance toler-

ance is ±10%, with tighter tolerances available.

Capacitance matching at one or more bias voltages is

also available.

Conﬁgurations

TOP VIEW

(SINGLE)

(COMMON CATHODE PAIR)

Applications

The MA4ST079 through MA4ST083 series of hyperabrupt

junction tuning varactors is suggested for usage where a

large frequency change is required with only a small

change in tuning voltage.

This series is appropriate for usage in wide band voltage

controlled oscillators and voltage controlled ﬁlters which

require the largest rate of change of capacitance with

voltage. The large change in capacitance from 1 to 8

volts makes them very attractive for battery operated or

other systems with limited available control voltage.

The MA4ST079 through MA4ST083 family can be used in

VCOs and VTFs from approximately 100 KHz through the

UHF frequency band.

Speciﬁcations Subject to Change Without Notice.

M/A-COM, Inc.

North America: Tel. (800) 366-2266

Fax (800) 618-8883

■

Asia/Paciﬁc: Tel. +81 3 3263 8761

Fax +81 3 3263 8769

■

Europe: Tel. +44 (1344) 869 595

Fax +44 (1344) 300 020

Surface Mount Hyperabrupt Wide-Band Tuning Varactors

Electrical Speciﬁcations @ 25°C

MA4ST079 thru 083

V3.00

Breakdown Voltage @ I_R= 10 µA, VB = 12 Volts Minimum

Reverse Leakage Current @ V_R= 10 Volts, I_R= 100 nA Maximum

Temperature Coefﬁcient ot Capacitance @ V_R= 8 Volts, TCC = 400 ppm/°C Typical

Minimum

Total Capacitance

(pF)

Maximum

Typical

Model

Number

Total Capacitance Total Capacitance Total Capacitance Total Capacitance

Typical

(pF)

Ratio C /C

T1 T8

f = 1 MHz

= 1/ V =8

f = 50 MHz

= 1 Volt

= 2.5 Volts

= 4 Volts

= 8 Volts

V = 4 Volts

min.

max.

MA4ST079

MA4ST080

MA4ST081

MA4ST082

MA4ST083

87.4

40.0

16.2

11.5

7.9

48.7

22.3

9.1

59.5

27.3

11.1

8.0

27.3

13.1

5.2

11.8

5.5

2.4

1.8

1.3

9.1

8.9

8.5

8.2

7.8

150

300

350

450

6.6

3.8

4.5

5.5

2.6

Absolute Maximum Ratings @ 25°C

Ordering Information

The part numbers shown are for single diodes. When

ordering diodes in common cathode pairs add suffix

“CK.” For example, MA4ST079CK speciﬁes model num-

ber MA4ST079 as a common cathode pair. To order parts

on tape and reel add sufﬁx T/R to the end of the part

number. i.e. MA4ST079-T/R

Parameter

Absolute Maximum

Reverse Voltage

Junction Temperature

Storage Temperature

Forward Current

Power Dissipation

12 Volts

-65°C to +125°C

50 mA

50 mW @ 25°C

Speciﬁcations Subject to Change Without Notice.

M/A-COM, Inc.

North America: Tel. (800) 366-2266

Fax (800) 618-8883

■

Asia/Paciﬁc: Tel. +81 3 3263 8761

Fax +81 3 3263 8769

■

Europe: Tel. +44 (1344) 869 595

Fax +44 (1344) 300 020

Surface Mount Hyperabrupt Wide-Band Tuning Varactors

MA4ST079 thru 083

V3.00

Case Style

SOT-23 (High Proﬁle)

INCHES

MAX.

MILLIMETERS

DIM.

MIN.

—

MIN.

—

MAX.

1.22

0.20

1.00

0.50

0.15

3.00

1.40

0.048

0.008

0.040

0.020

0.006

0.119

0.056

—

0.013

0.003

0.110

0.047

0.35

0.08

2.80

1.20

0.037 typical

0.075 typical

0.103

0.024

0.95 typical

1.90 typical

2.60

0.60

Package Capacitance = 0.15 pF typical

Package Inductance = 2 nH typical

DIM.

GRADIENT

10° max.¹

2°…30

Note:

1. Applicable on all sides

Typical Performance Curves

TOTAL CAPACITANCE vs REVERSE VOLTAGE

NOMINAL Q vs REVERSE VOLTAGE

Speciﬁcations Subject to Change Without Notice.

M/A-COM, Inc.

North America: Tel. (800) 366-2266

Fax (800) 618-8883

■

Asia/Paciﬁc: Tel. +81 3 3263 8761

Fax +81 3 3263 8769

■

Europe: Tel. +44 (1344) 869 595

Fax +44 (1344) 300 020

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