ALPHA SMV2022-001, SMV2022-004, SMV2023-001, SMV2023-004 Datasheet

Alpha Industries, Inc. [781] 935-5150 • Fax [978] 241-7906 • Email [e-mail] • www.alphaind.com 1

Specifications subject to change without notice. 6/01A

Hyperabrupt Junction Tuning Varactor

Features

■ Low Series Resistance

■ High Capacitance Ratio at Low

Reverse Voltage

■ SOT-23 Single and Common Cathode

■ Designed for High Volume, Low Cost

Battery Applications

■ Available in Tape and Reel Packaging

SMV2022–SMV2023

Description

The SMV2022 and SMV2023 devices are silicon
hyperabrupt junction varactor diodes. The specified high
capacitance ratio and low RSof these varactors make them
attractive for low phase noise VCOs in wireless systems.

Characteristic Value

Reverse Voltage (VR) 22 V

Forward Current (IF) 20 mA

Power Dissipation (PD) 250 mW

Storage Temperature (TST) -55°C to +150°C

Operating Temperature (TOP) -55°C to +125°C

Absolute Maximum Ratings

CT@ 4 V

CT@ 4 V CT@ 20 V CT@ 20 V

Part Number (pF) (pF) (Ratio) Q @ 4 V

Min. Max. Min. Max. Min. 50 MHz

SMV2022 2.5 3.3 0.6 0.85 3.0 500

SMV2023 4.4 5.4 0.9 1.20 4.2 500

Electrical Specifications at 25°C

Reverse current IR(VR= 16 nA): 50 nA.

Single Common Cathode

SOT-23 SOT-23

SMV2022-001 SMV2022-004

SMV2023-001 SMV2023-004

LS= 1.5 nH LS= 1.5 nH

Hyperabrupt Junction Tuning Varactor SMV2022–SMV2023

2 Alpha Industries, Inc. [781] 935-5150 • Fax [978] 241-7906 • Email [e-mail] • www.alphaind.com

Specifications subject to change without notice. 6/01A

Capacitance vs. Voltage

Reverse Voltage (V)

Capacitance (pF)

0

1

2

3

4

5

6

7

8

0

5101520

SMV2022

SMV2023

Typical Performance Data

FOOTPRINT

3

2

1

0.087

(2.20 mm)

0.035

(0.89 mm)MIN.

0.044

(1.12 mm)MAX.

0.0005 (0.01 mm) MIN.

0.004 (0.10 mm) MAX.

0.012

(0.30 mm)

MIN.

0.020

(0.50 mm)

MAX.

0.003 (0.080 mm) MIN.

0.008 (0.20 mm) MAX.

8˚ MAX.

0.022 (0.55 mm) REF.

0.110 (2.80 mm) MIN.

0.120 (3.04 mm) MAX.

0.083

(2.10 mm)

MIN.

0.104

(2.64 mm)

MAX.

0.037 (0.95 mm)
REF.

0.047

(1.20 mm) MIN.

0.055

(1.40 mm) MAX.

0.076

(1.92 mm) REF.

0.02

(0.51 mm)

REF.

0.075 (1.90 mm)

0.037

(0.95 mm)

0.039

(1.00 mm)

0.055

(1.40 mm)

SOT-23

DIODE
Varactor_Diode
AREA = 1
MODEL = Diode_Model
MODE = nonlinear

RES
R

S

R = R

S

IND
L

S

L = L

S

CAP
C

P

C = C

P

PORT
P_anode
port = 1

PORT
P_Cathode
port = 2

DIODEM
Diode_Model
I

S

= 1.00e-14

R

S

= 0
N = 1
T

T

= 0

C

JO

= C

JO

M = M
V

J

= V

J

EG = 1.11
X

TI

= 3
K

F

=0

A

F

=1

F

C

= 0.5

B

V

= 0

I

BV

= 1e-3
I

SR

= 0
N

R

= 2
I

KF

= 0

N

BV

= 1

I

BVL

= 0

N

BVL

= 1

T

BV1

= 0

T

NOM

= 27

F

FE

= 1

SPICE Model

VR(V) SMV2022 CT(pF) SMV2023 CT(pF)

0.0 7.41 12.33

0.5 5.94 9.90

1.0 5.14 8.60

1.5 4.56 7.62

2.0 4.14 6.94

2.5 3.78 6.34

3.0 3.49 5.88

3.5 3.23 5.45

4.0 3.01 5.09

5.0 2.54 4.42

6.0 2.18 3.77

7.0 1.8 3.18

8.0 1.5 2.63

9.0 1.29 2.21

10.0 1.11 1.86

11.0 1.03 1.68

12.0 0.96 1.54

13.0 0.91 1.44

14.0 0.87 1.37

15.0 0.83 1.30

16.0 0.81 1.25

17.0 0.78 1.20

18.0 0.76 1.16

19.0 0.75 1.13

20.0 0.73 1.09

Part C

J0

V

J

M

C

P

R

S

L

S

Number (pF) (V) (pF) (

ΩΩ))

(nH)

SMV2022 7.30 4.0 1.4 0 2.2 1.5

SMV2023 12.23 4.0 1.4 0 1.6 1.5

Capacitance vs. Voltage