SMV1270-079 View Datasheet(PDF) - Alpha Industries

Part Name

Description

Manufacturer

SMV1270-079

Hyperabrupt Junction Tuning Varactor

Alpha Industries 

Hyperabrupt Junction Tuning Varactor

SMV1270-079

Typical Performance Data

25

20

15

10

5

0

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

Varactor Voltage (V)

Capacitance vs. Voltage

5

4

VVAR = 1 V

3

2

VVAR = 2.5 V

1

0

VVAR = 4 V

-1

-2

-3

-4

-40 -20 0 20 40 60 80

Temperature (˚C)

Relative Capacitance

Change vs. Temperature

SC-79

CATHODE 0.006 (0.15 mm) MIN.

INDICATOR

0.010

1

(0.25 mm) MIN.

0.014

(0.35 mm) MAX.

0.028

2

(0.70 mm) MIN.

0.035

(0.90 mm) MAX.

0.060 (1.50 mm) MIN.

0.067 (1.70 mm) MAX.

0.043 (1.10 mm) MIN.

0.051 (1.30 mm) MAX.

10˚ MAX.

0.003

(0.07 mm) MIN.

0.008

(0.20 mm) MAX.

0.020

(0.50 mm) MIN.

0.028

(0.70 mm) MAX.

10˚ MAX.

Capacitance vs. Voltage

VR (V)

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

CT (pF)

23.64

17.81

13.69

10.74

8.60

7.03

5.87

5.00

4.35

3.85

SPICE Model

IND

LS

L = LS

RES

RS

R = RS

DIODE

Varactor_Diode

AREA = 1

MODEL = Diode_Model

MODE = nonlinear

PORT

P_anode

port = 1

CAP

CP

C = CP

PORT

P_Cathode

port = 2

DIODEM

Diode_Model

IS = 1.00e-14

RS = 0

N=1

TT = 0

CJO = CJO

M=M

EG = 1.11

XTI = 3

KF =0

AF =1

FC = 0.5

BV = 0

IBV = 1e-3

ISR = 0

NR = 2

IKF = 0

NBV = 1

IBVL = 0

NBVL = 1

TBV1 = 0

TNOM = 27

FFE = 1

Part

Number

CJO

VJ

(pF) (V)

SMV1270-079 30

12

M

CP

RS

LS

(pF) (Ω) (nH)

8

2

0.7 1.7

2

Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com

Specifications subject to change without notice. 6/99A

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