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RF Variable Inductors Series 202

Variable Inductor

Dimensions DividerElectrical Specifications DividerNotes


Series 202 Dimensions

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Electrical Specifications - Series 202

Series 202 with Carbonyl J Core

Part Number * Inductance µH Q ± 10% Test
Freq.
MHz
Suggested
Core		  
Min ± 5%		  
Max ± 10%		 At
Min L		 At
Max L
20201  J4   0.050 0.067 111 122 40
20202  J4   0.082 0.124 139 155 40
20203  J4   0.122 0.200 159 166 40
20204  J4   0.170 0.300 169 167 40
20205  J4   0.220 0.400 176 163 40
20206  J4   0.270 0.520 183 158 40
20207  J4   0.323 0.610 156 148 25
20208  J4   0.382 0.720 160 140 25
20209  J4   0.442 0.820 164 132 25
20210  J4   0.499 0.910 168 126 25
20211  J4   0.570 1.000 173 121 25
20212  J4   0.630 1.100 179 116 25
20213  J4   0.710 1.200 187 116 25
20214  J4   0.800 1.270 194 78 *
20215  J4   0.890 1.345 195 77 *

* Part Number includes Core


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Series 202 with Carbonyl E Core

Part Number * Inductance µH Q ± 10% Test
Freq.
MHz
Suggested
Core		  
Min ± 5%		  
Max ± 10%		 At
Min L		 At
Max L
20201  E4   0.050 0.069 111 115 40
20202  E4   0.082 0.134 139 137 40
20203  E4   0.122 0.220 159 142 40
20204  E4   0.170 0.330 169 138 40
20205  E4   0.220 0.450 176 133 40
20206  E4   0.270 0.580 183 127 40
20207  E4   0.323 0.680 156 140 25
20208  E4   0.382 0.800 160 129 25
20209  E4   0.442 0.900 164 121 25
20210  E4   0.499 1.010 168 112 25
20211  E4   0.570 1.120 173 107 25
20212  E4   0.630 1.200 179 74 *
20213  E4   0.710 1.290 187 74 *
20214  E4   0.820 1.380 194 72 *
20215  E4   0.920 1.460 189 70 *

* Part Number includes Core


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Notes - Series 202

  1. Minimum inductance is measured with the core halfway out of the coil form.

  2. Carbonyl E & J material cores are available 1/4", 5/16", 3/8" or 1/2" long. Electrical measurements shown were made with 1/4" x 28, 3/8" long, carbonyl "E" or "J" cores, as noted. Other core lengths and materials are available.

  3. Series 202 windings are 26 TPI and have an O.D. of .364". Distance from the mounting surface to the first turn is .055".

  4. Coil form material is polypropylene.

  5. Series 202 coils may be tuned with Standex tuning wrenches 95 or 764.

  6. Standex specifications are subject to change without notice.