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“Unicoil” 7 mm

Tunable RF Inductors

RoHS compliant
  • Windings are precision molded into polypropylene for mechanical and electrical stability
  • Tuning is done by means of a threaded powdered iron core with a slotted socket
  • Optional plated brass shield cans with solderable tabs provide integral shielding
  • Extremely economical, even in small quantities
  • Samples of all 7 mm and 10 mm values are available in Coilcraft Designer's Kit M302
  • RoHS-compliant. Terminations: Series 146 leads  – Tin-silver over copper
    Series 150 leads – Matte tin over copper
    Shield can tabs – Tin-silver over nickel over brass
  • Tune with our handy 3-in-1 "TriTuner" tuning wrench

Buy Now:
Count Unit price
1 $3.51
100 $2.87
250 $2.02
500 $1.49
1000 $1.07
2500 $0.62
5000 $0.42

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
Request a Sample:

Designer's Kit:
Kit Values Price
M302 98 (2 of each) $60.00

Specifications

Electrical specifications at 25°C.

Unshielded

Part number 1 Color Turns Inductance (nH) 2 Test frequency
(MHz)
Q min
at L nom
SRF min (MHz) DCR (mΩ) 3
No core
nom
min 4 nom max
146-01J08L Brown 45 47 50 53 50.0 90 1300 8.0
146-02J08L Red 65 68 78 88 50.0 100 780 9.0
146-03J08L Orange 86 90 108 126 50.0 100 560 10.5
146-04J08L Yellow 111 117 146 175 50.0 94 475 11.6
146-05J08L Green 140 148 190 232 50.0 88 430 13.0
146-06J08L Blue 167 188 240 292 50.0 78 390 14.5
146-07J08L Violet 198 231 292 350 50.0 72 350 15.6
146-08J08L Gray 228 272 342 412 50.0 68 330 18.0
146-09J08L White 264 330 405 480 40.0 66 320 19.4
146-10J08L Black 10½ 292 390 465 540 40.0 60 290 21.0
150-01J08L Brown 44.5 46 49 52 50.0 88 2000 8.0
150-02J08L Red 58.5 62 70 78 50.0 100 1300 9.0
150-03J08L Orange 77.5 82 98 114 50.0 108 1000 10.5
150-04J08L Yellow 94.5 108 130 154 50.0 114 780 11.6
150-05J08L Green 116 137 165 193 50.0 114 650 13.2
150-06J08L Blue 138 176 205 234 50.0 112 550 14.7
150-07J08L Violet 156 222 245 268 50.0 108 510 16.0

Shielded

Part number 1 Color Turns Inductance (nH) 2 Test frequency
(MHz)
Q min
at L nom
SRF min (MHz) DCR (mΩ) 3
No core
nom
min 4 nom max
146-01J08SL Brown 44 45 46 47 50.0 76 1550 8.0
146-02J08SL Red 59 62 65 68 50.0 78 850 9.0
146-03J08SL Orange 75 80 85 90 50.0 78 660 10.5
146-04J08SL Yellow 95 100 110 120 50.0 78 570 11.6
146-05J08SL Green 115 120 135 150 50.0 76 510 13.0
146-06J08SL Blue 136 142 163 184 50.0 72 470 14.5
146-07J08SL Violet 155 172 194 216 50.0 68 430 15.6
146-08J08SL Gray 176 200 224 248 50.0 66 400 18.0
146-09J08SL White 202 234 260 284 50.0 60 360 19.4
146-10J08SL Black 10½ 224 260 288 315 50.0 56 330 21.0
150-01J08SL Brown 42.5 43.5 44.5 44.5 50.0 72 1900 8.0
150-02J08SL Red 54 56 60 64 50.0 80 1450 9.0
150-03J08SL Orange 68 71 76 81 50.0 84 1100 10.5
150-04J08SL Yellow 82.5 86 95 104 50.0 85 900 11.6
150-05J08SL Green 95.5 107 115 123 50.0 84 750 13.2
150-06J08SL Blue 109 125 134 143 50.0 82 620 14.7
150-07J08SL Violet 123 150 156 162 50.0 80 560 16.0
Notes
  1. To order fixed inductance parts without cores, eliminate the “J08”, e.g. 150-01L.
  2. Inductance and Q readings taken on Boonton 260-A Q meter with 16 AWG tinned copper 1/2" long soldered along leads and bent at 90° 1/4" down from stand offs.
    All inductance values greater than 0.1 µH read at recommended Q meter frequency.
    All inductance values below 0.1 µH calculated from readings taken at 50 MHz.
  3. DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  4. L min measured with core halfway out top of form.

Termination:

  • Series 146 leads: Tin-silver over copper
  • Series 150 leads: Matte tin over copper
  • Shield can tabs: Tin-silver over nickel over brass
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
−40°C to +85°C
Storage temperature range:
Component: −40°C to +85°C
Packaging tubes: −40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Physical characteristics

Unshielded Styles

uni7un.gif

 

Shielded Styles

uni7sh.gif
dims_inches_mm.gif

General specification

Core Material:
Carbonyl J, 1/4" long
Weight:
146 series unshielded: 0.44 - 0.7g, with shield can: 0.91 - 1.12g; 150 series unshielded: 0.45 - 0.61g, with shield can: 0.88 - 1.08g
Packaging:

Unshielded: 85 per tube
With shield can: 75 per tube

Soldering/Washing

Resistance to soldering heat:
Wave solder only. Recommended maximum board surface temperature of 168°C (334°F) for no more than three seconds. Pre-heating is recommended to minimize time over the solder nozzle.
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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