Plastic Packaged Surface Mount Varactor Diodes 2 Features Industry Standard Outlines: SOD–323 and SOT–23 Packages High “Q” Abrupt and Hyperabrupt Junction Designs Single, Common Anode and Common Cathode Configurations Available for 3 Volt Battery Operated Circuits Priced for High Volume Commercial Applications Available in Tape and Reel Also Available as Chips Maximum Ratings (TA = 25°C) Forward Current: Power Dissipation: Junction Temperature: Storage Temperature: Operating Temperature: 100 mA 250 mW 125°C –55 to 150°C –55 to 125°C Description The surface mount plastic varactor diodes are designed for RF and Microwave applications in VCOs, electronically tunable filters and matching networks. Package offerings include the SOT–23 and the small footprint SOD–323 package. Alpha offers a comprehensive capability in capacitance values, package options and voltage ratings all aggressively priced for high volume commercial applications. The SMV1247–001 to SMV1255–001 varactors were specifically designed for battery operated applications where 3 to 5 volts is available. These varactors have capacitance ratios of greater than 12 from 0.3 to 4.7 volts. high capacitance ratios. They are available as single junctions and common cathode configurations where they may be employed in a back–to–back orientation to reduce distortion. Alpha’s abrupt junction varactors are noted for extremely high Q factor and are the preferred choice in applications that require low phase noise and high temperature stability. The inductance of the SOT–23 package is typically 1.5 nH for each junction. Employing a common cathode SOT–23 with the varactor junctions connected in parallel reduces the inductance to approximately 0.9 nH. The inductance of a varactor in the SOD–323 package is approximately 1.5 nH. Alpha’s hyperabrupt varactors are available in a wide variety of tightly specified capacitance values and Alpha Industries • • Fax • E-mail • Visit our web site: 2–3 Plastic Packaged Surface Mount Varactor Diodes Electrical Characteristics (TA = 25°C) High Ratio Hyperabrupt Junction Varactors for Battery Operated Applications Breakdown Voltage, VB (10 µA): Reverse Current, IR (12V): CT @ 0.3V CT @ 4.7V (pF) CT @ 0.3V (pF) 15V Min. 50 nA Max. CT @ 4.7V 4 7V (Ratio) RS @ 3V 200 00 MHz () SOD–323 SOT–23 Common Anode SOT–143 Common Cathode Min. Typ. Max. Typ. Min. Typ. Max. Single Single 6.5 7.0 .78 .7 9.5 10.0 2.0 SMV1247–011 SMV1247–001 SMV1247–004 15 17 1.7 1.5 10.8 16.5 1.8 SMV1248–011 SMV1248–001 SMV1248–004 28 31 2.8 2.6 11.0 12.1 1.5 SMV1249–011 SMV1249–001 33 36 3.3 3.0 11.0 12.2 1.5 SMV1250–011 SMV1250–001 SMV1250–004 38 42 3.8 3.4 11.0 12.2 1.3 SMV1251–011 SMV1251–001 SMV1251–004 48 53 4.8 4.3 11.0 12.3 1.2 SMV1253–011 SMV1253–001 SMV1253–004 58 64 5.8 5.2 11.0 12.3 1.0 SMV1255–011 SMV1255–001 SMV1249–003 Low Inductance Unconnected Pair Low Inductance Unconnected Pair Low Inductance Unconnected Pair SMV1249–004 SMV1255–003 SMV1255–004 Common Anode Common Cathode 12 Volt Hyperabrupt Junction Varactors Reverse Breakdown Voltage, VB (10 µA): Reverse Current, IR (8V): CT @ 2.5V (pF) CT @ 1V (pF) 12V Min. 50 nA Max. Q @ 4V 50 MHz CT @ 4V (pF) Min. Typ. Min. Max. Typ. Max. Min. 95 100 40 65 20 25 80 42 50 18 27 9.0 12 150 17 22 8.5 10.5 4.0 5.5 200 14.5 16 6.5 7.8 3.0 4.8 300 8.7 9.5 4.3 5.5 2.0 2.9 350 85 – – – 15.0 30.0 500* SOD–323 Single SOT–23 Single SOT–143 SMV1211–001 SMV1212–001 SMV1213–011 SMV1214–001 SMV1215–011 SMV1212–004 SMV1213–001 SMV1213–004 SMV1214–003 SMV1215–001 SMV1297–001 *Q @ 2V, F=1 MHz Breakdown Voltage, VB (10 µA): Reverse Current, IR (10V): CT @ 0.2V (pF) CT @ 2V (pF) 12V Min. 50 nA Max. CT @ 6V (pF) Q @ 2V 50 MHz SOD–323 SOT–23 Min. Max. Min. Max. Min. Max. Min. Single Single 11 14 4 6.5 1.2 1.9 250 SMV1299–011 SMV1299–001 Common Anode Common Cathode SMV1299–004 SOT–143 SMV1299–015 All plastic packaged varactors are available through distribution. 2–4 Alpha Industries • • Fax • E-mail • Visit our web site: Plastic Packaged Surface Mount Varactor Diodes 12 Volt Hyperabrupt Junction Varactors (cont.) Reverse Breakdown Voltage, VB (10 µA): Reverse Current, IR (8V): CT @ 2.5V 5 (pF) CT @ 1V CT @ 2.5V CT @ 2.5V (Ratio) CT @ 4V (Ratio) 12V Min. 50 nA Q @ 4V 50 MHz SOD–323 Min. Typ. Min. Max. Min. Max. Min. Single Single 18 27 1.5 2.0 1.5 2.0 150 SMV1222–011 SMV1222–001 9 13 1.5 2.0 1.5 2.0 200 SMV1223–011 SMV1223–001 6 8 1.5 2.0 1.5 2.0 300 SMV1224–001 4.2 5.6 1.5 2.0 1.5 2.0 350 SMV1225–001 2 SOT–143 SOT–23 Common Anode Common Cathode Low Inductance Unconnected Pair 15 Volt Hyperabrupt Junction Varactors Reverse Breakdown Voltage, VB (10 µA): Reverse Current, IR (12V): CT @ 1V (pF) Min. CT @ 1V CT @ 1V CT @ 3V (Ratio) CT @ 6V (Ratio) Max. Min. Max. Min. Max. 15V Min. 50 nA Max. Rs @ 3V 50 MHz () Q @ 3V 50 MHz SOD–323 Max.. Min. Single Single Common Anode Common Cathode SOT–23 3.0 3.6 1.5 1.9 2.6 3.3 1.2 1200 SMV1233–011 SMV1233–001 SMV1233–003 SMV1233–004 5.85 7.15 1.6 2.0 2.8 3.4 0.8 1000 SMV1234–011 SMV1234–001 SMV1234–003 SMV1234–004 10.35 12.65 1.6 2.0 2.9 3.4 0.6 750 SMV1235–011 SMV1235–001 15.50 18.50 1.6 2.0 3.0 3.5 0.5 700 SMV1236–011 SMV1236–001 45.00 54.0 1.6 2.0 3.0 3.5 0.25 500 SOT–143 Low Inductance Unconnected Pair SMV1235–004 SMV1236–003 SMV1237–001 SMV1236–004 SMV1237–004 22 Volt Hyperabrupt Junction Varactors Reverse Breakdown Voltage, VB (10 µA): Reverse Current, IR (17.6 V): 22V Min. 50 nA Max. CT1 CT @ VR 1 (pF) VR1 (V) Min. Max. 10.5 12.5 CT @ VR 2 (pF) VR2 (V) Q @ VR 1 50 MHz SOD–323 Min. Min. Single Single SMV1206–011 SMV1206–001 CT2 (Ratio) Min. Max. 3 2.1 2.5 20 4.6 400 SOT–23 Common Anode SOT–143 Common Cathode Low Inductance Unconnected Pair SMV1206–004 25 31 3 4.5 5.3 20 4.8 300 2.5 3.3 4 0.6 0.85 20 3.0 500 SMV2022–011 SMV1207–001 SMV2022–001 SMV2022–003 SMV1207–004 SMV2022–004 4.4 5.4 4 0.9 1.2 20 4.2 500 SMV2023–011 SMV2023–001 SMV2023–003 SMV2023–004 18 22 4 3.1 3.9 20 4.6 300 SMV1227–001 45 55 4 7.3 9.2 20 5.0 200 SMV1228–001 100 120 4 16 20 20 5.2 125 SMV1229–001 All plastic packaged varactors are available through distribution. Alpha Industries • • Fax • E-mail • Visit our web site: 2–5 Plastic Packaged Surface Mount Varactor Diodes Low Series Resistance Abrupt Junction Varactors Reverse Breakdown Voltage, VBR (10 µA): Reverse Current, IR (10V): CT @ 1.0V (pF) Rs @ 3V 50 MHz () CT @ 4.0V 4 0V (pF) 12V Min. 50 nA Max. SOD–323 Min. Max. Min. Max. Max. Single 17.4 20.0 10.0 12.1 0.25 SMV1493–011 36.3 41.7 20.7 25.3 0.20 SMV1494–011 SOT– 23 Single Common Anode SOT–143 Common Cathode Low Inductance Unconnected Pair All plastic packaged varactors are available through distribution. 2–6 Alpha Industries • • Fax • E-mail • Visit our web site: Plastic Packaged Surface Mount Varactor Diodes 30 Volt Abrupt Junction Varactors Reverse Breakdown Voltage, VBR (10 µA): Reverse Current, IR (24V): CT0 CT @ 4V (pF) CT30 (Ratio) RS @ 4V 50 MHz () Q @ 4V 50 MHz Min. Max. Min. Max. Min. 1.21 1.45 4.1 0.8 3200 1.75 2.11 4.1 0.60 2900 2.11 2.55 4.1 0.50 2.56 3.10 4.2 3.10 3.76 4.2 3.64 4.42 4.36 30V Min. 50nA Max. SOD–323 SOT–23 Single Single Common Anode SMV1405–001 SMV1405–004 SMV1408–001 SMV1408–004 2800 SMV1409–001 SMV1409–004 0.45 2600 SMV1410–001 SMV1410–004 0.40 2500 SMV1411–001 SMV1411–004 4.2 0.35 2400 SMV1413–001 SMV1413–004 5.30 4.2 0.30 2200 SMV1414–001 SMV1414–004 5.17 6.29 4.3 0.27 2100 SMV1415–001 SMV1415–004 6.25 7.61 4.3 0.24 2000 SMV1416–001 SMV1416–004 7.51 9.15 4.3 0.22 1800 SMV1417–001 SMV1417–004 9.13 11.13 4.4 0.20 1600 SMV1419–001 10.93 13.33 4.4 0.19 1400 SMV1420–001 13.63 16.63 4.4 0.18 1200 SMV1421–001 16.33 19.93 4.4 0.18 1000 SMV1422–001 29.83 36.43 4.5 0.16 600 SMV1426–001 SMV1408–011 2 SOT–143 Common Cathode Low Inductance Unconnected Pair All plastic packaged varactors are available through distribution. 1. Capitance measured at 1 MHz. 2. For multiple junction packages specifications apply to single junction. Unpackaged chips are available for purchase by replacing the dash number with –000. For example, to purchase the chip from the SMV1408–001, the part number becomes SMV1408–000. The package capacitance of 0.13 pF should be subtracted from the CT specifications to indicate junction capacitance. Chips available through distribution: SMV1212–000 SMV1213–000 SMV1214–000 SMV1233–000 SMV1236–000 Alpha Industries • • Fax • E-mail • Visit our web site: 2–7 Plastic Packaged Surface Mount Varactor Diodes Typical Capacitance Curves 100.0 1000 SMV1237 SMV1236 SMV1235 SMV1234 1.0 SMV1233 100 Capacitance (pF) Capacitance (pF) 10.0 SMV1229 10 SMV1228 SMV1244 0.1 SMV1207 SMV1227 SMV1206 SMV1205 1 0 2 4 6 8 10 0 2 Reverse Voltage (Volts) 4 6 8 10 12 14 16 18 20 Reverse Voltage (Volts) Capacitance vs. Reverse Voltage Capacitance vs. Reverse Voltage 100 100 Capacitance (pF) Capacitance (pF) SMV1493 SMV1494 10 10 SMV1422 SMV1421 SMV1419 SMV1417 SMV1415 SMV1413 SMV1410 1 1 0.1 1.0 10.0 SMV1408 0 Reverse Voltage (Volts) 2 4 6 8 10 12 14 16 18 20 Reverse Voltage (Volts) Capacitance vs. Reverse Voltage Capacitance vs. Reverse Voltage 100.0 1000 SMV1255 SMV1253 Capacitance (pF) SMV1211 10 SMV1212 10.0 SMV1250 SMV1249 1.0 SMV1248 SMV1247 SMV1213 SMV1214 SMV1215 1 0.1 0 2 4 6 8 Reverse Voltage (Volts) Capacitance vs. Reverse Voltage 2–8 Capacitance (pF) SMV1251 100 1 10 Reverse Voltage (Volts) Capacitance vs. Reverse Voltage Alpha Industries • • Fax • E-mail • Visit our web site: Plastic Packaged Surface Mount Varactor Diodes Outline Dimensions SOT–23 SOD–323 0.108 (2.70mm) 0.090 (2.30mm) 0.016 (0.40mm) 0.010 (0.25mm) 0.053 (1.35mm) 0.045 (1.15mm) 0.071 (1.80mm) 0.063 (1.60mm) 0.008 (0.20mm) 0.006 (0.15mm) TYP. 0.010 (0.25mm) MIN. 0.050 (1.25mm) MAX. 0.004 (0.10mm) MAX. SOT–143 Alpha Industries • • Fax • E-mail • Visit our web site: 2–9