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Tunable Low Profile
RF Inductors 148 Series

  • 0.300″ / 7,6 height is ideal for low profile applications
  • Windings are precision molded into plastic for mechanical and electrical stability
  • Threaded Carbonyl J core with a slotted socket
  • Extremely economical, even in small quantities
  • RoHS-compliant. Tin-silver over copper terminations.
  • Samples of all values are available in Coilcraft Designer's Kit M304
  • Tune with our handy 3-in-1 "TriTuner" tuning tool

SPECIFICATIONS


Part number1
Click to get parts
Color Turns Inductance  (nH)2 Q min4
at L nom
Test freq
(MHz)
No core SRF
min (MHz)
No core min3 nom max3
148-01J12L Brown 1 1/2 35 38 39 40 88 50 3200
148-02J12L Red 2 1/2 44 46 52 58 96 50 1560
148-03J12L Orange 3 1/2 56 60 73 86 106 50 1200
148-04J12L Yellow 4 1/2 74 77 101 125 112 50 980
148-05J12L Green 5 1/2 92 96 130 164 112 50 820
148-06J12L Blue 6 1/2 114 120 170 220 112 50 720
148-07J12L Violet 7 1/2 142 154 222 290 110 50 620
148-08J12L Gray 8 1/2 168 176 262 346 106 25 570
148-09J12L White 9 1/2 198 208 310 410 104 25 490
148-10J12L Black 10 1/2 237 250 375 500 90 25 450
148-11J12L Brown 11 1/2 276 290 435 580 84 25 410
148-12J12L Red 12 1/2 315 338 500 666 66 25 350
148-13J12L Orange 13 1/2 344 362 540 710 64 25 320
1 To order fixed inductance parts without cores, eliminate the “J12”, e.g. 148-13L.
2 Inductance readings taken at test frequency on an Agilent/HP 4342A Q meter with 1/2″ long, 16 AWG tinned copper wire soldered along the leads and bent at 90°, 1/4″ from standoffs. Inductance values at 50 MHz calculated from Cp readings. Inductance values at 25 MHz read at standard Q meter frequency (blue line)
3 L min measured with core halfway out top of form. L max measured with core centered in the windings.
4 Q readings taken at test frequency on an Agilent/HP 4342A Q meter with 1/2″ long, 16 AWG tinned copper wire soldered along the leads and bent at 90°, 1/4″ from standoffs.
5 Core material: Carbonyl J. Core length: 0.375 in / 9,5 mm
6 Ambient temperature range: −40°C to +85°C
7 Storage temperature range: Component: −40°C to +85°C
Packaging tubes: −40°C to +80°C
8 Electrical specifications at 25°C.
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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Updated: April 10, 2017