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Hyperabrupt Junction Tuning Varactors
SMV1211-SMV1215 Features
s High Capacitance Ratio, C1 V/C4 V = 5 Typ. s Multiple Packages SOT-23, SOD-323, SC-70 and SC-79 s Designed for High Volume Commercial Applications s SPICE Models are Available
Description
The SMV1211-SMV1215 series of silicon hyperabrupt junction varactor diodes are designed for use in VCOs with low tuning voltage operation. This family of varactors is characterized for capacitance and resistance over temperature. SPICE models are provided.
Absolute Maximum Ratings
Characteristic Reverse Voltage (VR) Forward Current (IF) Power Dissipation (PD) Storage Temperature (TST) Operating Temperature (TOP) Value 12 V 20 mA 250 mW -55C to +150C -55C to +125C
Single SC-79 o SMV1212-079 o SMV1213-079
Single SOD-323
Single SOT-23 o SMV1211-001 o SMV1212-001
Common Cathode SOT-23 o SMV1212-004 o SMV1213-004
Common Cathode SC-70 o SMV1212-074 o SMV1213-074
o SMV1213-011 o SMV1215-011
o SMV1213-001 o SMV1214-001 o SMV1215-001 LS = 1.5 nH
LS = 0.7 nH
LS = 1.5 nH
LS = 1.4 nH
LS = 1.4 nH
o Available through distribution. For other packages or configurations, please contact the factory.
Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com
Specifications subject to change without notice. 1/01A
1
Hyperabrupt Junction Tuning Varactors
SMV1211-SMV1215
Electrical Specifications at 25C
Part Number SMV1211 SMV1212 SMV1213 SMV1214 SMV1215 CT @ 1 V (pF) Min. 95.0 42.0 17.0 14.5 8.7 Typ. 100.0 50.0 22.0 16.0 9.5 CT @ 2.5 V (pF) Min. 40.0 18.0 8.5 6.5 4.3 Max. 65.0 27.0 10.5 7.8 5.5 CT @ 4 V (pF) Typ. 20 9 4 3 2 Max. 25.0 12.0 5.5 4.8 2.9 CT @ 1 V CT @ 2.5 V (Ratio) Typ. 2 2 2 2 2 CT @ 1 V CT @ 4 V (Ratio) Typ. 5 5 5 5 5 RS @ 4 V 500 MHz () Typ. 0.4 0.8 1.4 1.7 2.8 Q @ 4V 50 MHz Min. 80 150 200 300 350
Reverse Voltage VR (IR = 10 A): 12 V Reverse Current IR (VR = 8 V): 20 nA
Typical Performance Data
1000.0 SMV1211 4
Capacitance (pF)
SMV1212 100.0 SMV1213 SMV1214 SMV1215 10.0
3
SMV1215
RS ()
2
SMV1214 SMV1213 SMV1212
1
1.0 0 2.0 4.0 6.0 8.0
0 0
SMV1211 1 2 3 4 5
Reverse Voltage (V)
Reverse Voltage (V)
Capacitance vs. Reverse Voltage
Series Resistance vs. Reverse Voltage @ 500 MHz
15
3
Percentage Change (%)
Percentage Change (%)
60 80
2 1 0 -1 -2 -3 -40
VR = 1 V
10 5 0 -5 -10 -15
VR = 4 V
-20
0
20
40
-40
-20
0
20
40
60
80
Temperature (C)
Temperature (C)
Relative Capacitance Change vs. Temperature
Relative Series Resistance Change vs. Temperature @ 500 MHz
2
Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com
Specifications subject to change without notice. 1/01A
Hyperabrupt Junction Tuning Varactors
SMV1211-SMV1215
Typical Capacitance Values
SMV1211 VR (V) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 CT (pF) 162.6 122.3 98.6 80.4 64.2 48.2 34.1 24.7 19.4 16.4 14.6 13.3 12.4 11.7 11.2 10.8 10.5 SMV1212 SMV1213 CT (pF) 72.4 55.3 44.9 36.9 29.9 22.9 16.3 11.8 9.3 7.9 7.0 6.4 6.0 5.7 5.5 5.3 5.1 CT (pF) 30.0 22.8 18.1 15.3 12.3 9.2 6.4 4.5 3.5 3.0 2.6 2.4 2.2 2.1 2.0 1.9 1.9 SMV1214 SMV1215 CT (pF) 26.0 19.6 15.6 12.4 9.6 6.8 4.7 3.5 2.9 2.5 2.3 2.1 2.0 1.9 1.8 1.8 1.7 CT (pF) 14.8 11.3 9.1 7.5 6.0 4.5 3.1 2.3 1.9 1.7 1.5 1.4 1.3 1.3 1.2 1.2 1.2
SPICE Model
PORT P_anode port = 1 IND LS L = LS DIODEM Diode_Model IS = 1.00e-14 RS = 0 N=1 TT = 0 CJO = CJO M=M VJ 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
RES RS R = RS DIODE Varactor_Diode AREA = 1 MODEL = Diode_Model MODE = nonlinear
CAP CP C = CP
PORT P_Cathode port = 2
Part Number SMV1211 SMV1212 SMV1213 SMV1214 SMV1215
CJO (pF) 168.00 72.47 28.90 22.74 14.36
VJ (V) 500 110 190 190 190
M 54 67 105 106 115
CP (pF) 0.0 4.5 2.2 1.5 1.1
RS () 0.4 0.8 1.4 1.7 2.8
1. Values extracted from measured performance. 2. For package inductance (LS) refer to package type. 3. For more details refer to the "Varactor SPICE Models for RF VCO Applications" Application Note.
Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com
Specifications subject to change without notice. 1/01A
3
Hyperabrupt Junction Tuning Varactors
SMV1211-SMV1215
SOT-23
0.110 (2.80 mm) MIN. 0.120 (3.04 mm) MAX.
3
SC-70
0.012 (0.30 mm) MIN. 0.020 (0.50 mm) MAX. 0.047 (1.20 mm) MIN. 0.055 (1.40 mm) MAX.
1 2
0.071 (1.80 mm) MIN. 0.087 (2.20 mm) MAX. 0.010 (0.25 mm) MIN. 0.016 (0.40 mm) MAX. 0.071 (1.80 mm) MIN. 0.094 (2.40 mm) MAX.
0.083 (2.10 mm) MIN. 0.104 (2.64 mm) MAX.
3
0.045 (1.15 mm) MIN. 0.053 (1.35 mm) MAX.
0.037 (0.95 mm) REF. 0.020 (0.51 mm) REF. 0.076 (1.92 mm) REF.
1
0.014 (0.35 mm) REF.
2
0.026 (0.65 mm) REF.
0.051 (1.30 mm) REF. 0.003 (0.080 mm) MIN. 0.008 (0.20 mm) MAX. 8 MAX. 0.035 (0.89 mm) MIN. 0.044 (1.12 mm) MAX. 0.004 (0.10 mm) MIN. 0.007 (0.18 mm) MAX. 0.031 (0.80 mm) MIN. 0.039 (1.00 mm) MAX.
0.022 (0.55 mm) REF.
0.0005 (0.01 mm) MIN. 0.004 (0.10 mm) MAX.
0.004 (0.10 mm) MIN. 0.012 (0.30 mm) MAX.
0.000 (0.00 mm) MIN. 0.004 (0.10 mm) MAX.
SOD-323
0.090 (2.30 mm) MIN. 0.108 (2.74 mm) MAX. 0.010 (0.25 mm) MIN. 0.016 (0.40 mm) MAX. 0.063 (1.60 mm) MIN. 0.071 (1.80 mm) MAX.
SC-79
CATHODE 0.006 (0.15 mm) MIN. INDICATOR 0.010 (0.25 mm) MIN. 0.014 (0.35 mm) MAX.
1 2
0.045 (1.15 mm) MIN. 0.053 (1.35 mm) MAX. 1
2
0.028 (0.70 mm) MIN. 0.035 (0.90 mm) MAX.
CATHODE INDICATOR
0.060 (1.50 mm) MIN. 0.067 (1.70 mm) MAX. 0.043 (1.10 mm) MIN. 0.051 (1.30 mm) MAX.
0.008 (0.20 mm) NOM. 0.006 (0.15 mm) TYP. 0.050 (1.25 mm) MAX.
0.004 (0.10 mm) MAX. 0.010 (0.25 mm) MIN.
10 MAX. 0.003 (0.07 mm) MIN. 0.008 (0.20 mm) MAX. 10 MAX.
0.020 (0.50 mm) MIN. 0.028 (0.70 mm) MAX.
4
Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com
Specifications subject to change without notice. 1/01A

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