Through Hole Inductors

(TCAL)

How to Select a fixed inductor

Perfectly, inductors should have zero resistance and capacitance. This is not practically possible, as the conducting copper wires,
used for through hole inductors, have small internal resistance.

Important criteria for the selection are:

  1. Inductance Range (H):
    The rated inductance range of the inductor. This is designated by ±10% of the inductance.
  2. Quality Factor (Q):
    The Q value of an inductor is a measure of the relative losses in an inductor. The Q is also known as the "quality factor" and is technically defined as the ratio of inductive reactance to effective resistance.
  3. Self-Resonant Frequency (SRF):
    The frequency at which the inductor's distributed capacitance resonates with the inductance. It is at this frequency that the inductance is equal to the capacitance and they cancel each other. The inductor will act purely resistive with a high impedance at the SRF point.
  4. Permissible DC Current:
    Measured in Ohms, it is the maximum DC current that the inductor should be exposed to.

Characteristics (TCAL0204)

Part Number Inductance(µH) Q(min) Freq.(MHz) SRF(MHz)(min) DCR(Ω)(max) IDC(mA)(max)
TCAL**0204-R22M 0.22±20% 40 25.2 175 0.20 705
TCAL**0204-R27M 0.27±20% 40 25.2 160 0.22 670
TCAL**0204-R33M 0.33±20% 40 25.2 150 0.24 645
TCAL**0204-R39M 0.39±20% 50 25.2 150 0.27 605
TCAL**0204-R47M 0.47±20% 50 25.2 150 0.30 575
TCAL**0204-R56M 0.56±20% 50 25.2 150 0.34 540
TCAL**0204-R68M 0.68±20% 50 25.2 150 0.38 510
TCAL**0204-R82M 0.82±20% 50 25.2 150 0.43 480
TCAL**0204-1R0K 1.0±10% 50 25.2 150 0.46 465
TCAL**0204-1R2K 1.2±10% 50 7.96 110 0.52 435
TCAL**0204-1R5K 1.5±10% 50 7.96 80 0.57 415
TCAL**0204-1R8K 1.8±10% 50 7.96 66 0.60 405
TCAL**0204-2R2K 2.2±10% 50 7.96 60 0.65 390
TCAL**0204-2R7K 2.7±10% 50 7.96 54 0.73 370
TCAL**0204-3R3K 3.3±10% 50 7.96 48 0.82 345
TCAL**0204-3R9K 3.9±10% 50 7.96 44 0.90 330
TCAL**0204-4R7K 4.7±10% 50 7.96 38 1.00 315
TCAL**0204-5R6K 5.6±10% 50 7.96 34 1.10 300
TCAL**0204-6R8K 6.8±10% 50 7.96 30 1.20 285
TCAL**0204-8R2K 8.2±10% 50 7.96 26 1.30 275
TCAL**0204-100K 10±10% 50 7.96 24 1.40 265
TCAL**0204-120K 12±10% 50 2.52 22 1.50 255
TCAL**0204-150K 15±10% 50 2.52 20 1.65 245
TCAL**0204-180K 18±10% 50 2.52 18 1.90 225
TCAL**0204-220K 22±10% 50 2.52 17 2.20 210
TCAL**0204-270K 27±10% 50 2.52 16 2.50 200
TCAL**0204-330K 33±10% 50 2.52 14 3.80 160
TCAL**0204-390K 39±10% 50 2.52 13 4.20 150
TCAL**0204-470K 47±10% 50 2.52 12 4.60 145
TCAL**0204-560K 56±10% 40 2.52 11 5.10 140
TCAL**0204-680K 68±10% 40 2.52 10 5.60 130
TCAL**0204-820K 82±10% 40 2.52 9.5 9.60 100
TCAL**0204-101K 100±10% 40 2.52 8.0 10.8 95
TCAL**0204-121K 120±10% 40 0.796 6.5 12.5 85
TCAL**0204-151K 150±10% 40 0.796 6.0 14.5 80
TCAL**0204-181K 180±10% 40 0.796 5.5 16.3 75
TCAL**0204-221K 220±10% 40 0.796 5.0 20.0 70

Characteristics (TCAL0307)

Part Number Inductance(µH) Q(min) Freq.(MHz) SRF(MHz)(min) DCR(Ω)(max) IDC(mA)(max)
TCAL**0307-R22M 0.22±20% 30 25.2 380 0.075 1150
TCAL**0307-R27M 0.27±20% 30 25.2 360 0.08 1110
TCAL**0307-R33M 0.33±20% 30 25.2 350 0.08 1110
TCAL**0307-R39M 0.39±20% 30 25.2 320 0.09 1000
TCAL**0307-R47M 0.47±20% 30 25.2 300 0.10 1000
TCAL**0307-R56M 0.56±20% 30 25.2 280 0.11 950
TCAL**0307-R68M 0.68±20% 30 25.2 250 0.12 900
TCAL**0307-R82M 0.82±20% 30 25.2 200 0.12 900
TCAL**0307-1R0K 1.0±10% 40 25.2 180 0.15 815
TCAL**0307-1R2K 1.2±10% 40 7.96 165 0.18 740
TCAL**0307-1R5K 1.5±10% 40 7.96 150 0.20 700
TCAL**0307-1R8K 1.8±10% 50 7.96 125 0.23 655
TCAL**0307-2R2K 2.2±10% 50 7.96 110 0.25 630
TCAL**0307-2R7K 2.7±10% 50 7.96 95 0.28 595
TCAL**0307-3R3K 3.3±10% 50 7.96 70 0.30 575
TCAL**0307-3R9K 3.9±10% 45 7.96 65 0.32 555
TCAL**0307-4R7K 4.7±10% 45 7.96 50 0.35 530
TCAL**0307-5R6K 5.6±10% 45 7.96 40 0.40 500
TCAL**0307-6R8K 6.8±10% 40 7.96 30 0.45 470
TCAL**0307-8R2K 8.2±10% 40 7.96 28 0.55 425
TCAL**0307-100K 10±10% 40 7.96 22 0.72 370
TCAL**0307-120K 12±10% 40 2.52 20 0.80 350
TCAL**0307-150K 15±10% 50 2.52 16 0.88 335
TCAL**0307-180K 18±10% 50 2.52 15 1.00 315
TCAL**0307-220K 22±10% 50 2.52 13 1.20 285
TCAL**0307-270K 27±10% 50 2.52 11 1.35 270
TCAL**0307-330K 33±10% 50 2.52 10 1.50 255
TCAL**0307-390K 39±10% 50 2.52 9.5 1.70 240
TCAL**0307-470K 47±10% 60 2.52 8.5 2.30 205
TCAL**0307-560K 56±10% 60 2.52 7.5 2.60 195
TCAL**0307-680K 68±10% 60 2.52 6.5 2.90 185
TCAL**0307-820K 82±10% 60 2.52 6.0 3.20 175
TCAL**0307-101K 100±10% 60 2.52 5.5 3.50 165
TCAL**0307-121K 120±10% 60 0.796 5.4 3.80 160
TCAL**0307-151K 150±10% 60 0.796 4.75 4.40 150
TCAL**0307-181K 180±10% 60 0.796 4.35 5.00 140
TCAL**0307-221K 220±10% 60 0.796 4.0 5.70 130
TCAL**0307-271K 270±10% 60 0.796 3.7 6.50 120
TCAL**0307-331K 330±10% 60 0.796 3.4 9.50 100
TCAL**0307-391K 390±10% 60 0.796 2.8 10.5 95
TCAL**0307-471K 470±10% 60 0.796 2.55 11.6 90
TCAL**0307-561K 560±10% 60 0.796 2.35 13.0 85
TCAL**0307-681K 680±10% 60 0.796 2.0 18.0 75
TCAL**0307-821K 820±10% 60 0.796 1.5 23.0 65
TCAL**0307-102K 1000±10% 60 0.796 1.2 26.0 60

Characteristics (TCAL0410)

Part Number Inductance(µH) Q(min) Freq.(MHz) SRF(MHz)(min) DCR(Ω)(max) IDC(mA)(max)
TCAL**0410-R22M 0.22±20% 25 25.2 380 0.21 880
TCAL**0410-R27M 0.27±20% 25 25.2 340 0.24 800
TCAL**0410-R33M 0.33±20% 25 25.2 300 0.28 750
TCAL**0410-R39M 0.39±20% 25 25.2 280 0.32 680
TCAL**0410-R47M 0.47±20% 25 25.2 250 0.36 650
TCAL**0410-R56M 0.56±20% 25 25.2 230 0.41 600
TCAL**0410-R68M 0.68±20% 25 25.2 210 0.47 550
TCAL**0410-R82M 0.82±20% 45 25.2 172 0.17 980
TCAL**0410-1R0K 1.0±10% 45 25.2 157 0.19 920
TCAL**0410-1R2K 1.2±10% 50 7.96 144 0.21 880
TCAL**0410-1R5K 1.5±10% 50 7.96 131 0.23 830
TCAL**0410-1R8K 1.8±10% 55 7.96 121 0.25 790
TCAL**0410-2R2K 2.2±10% 55 7.96 110 0.28 750
TCAL**0410-2R7K 2.7±10% 60 7.96 100 0.30 720
TCAL**0410-3R3K 3.3±10% 60 7.96 94 0.34 670
TCAL**0410-3R9K 3.9±10% 60 7.96 86 0.37 640
TCAL**0410-4R7K 4.7±10% 60 7.96 80 0.39 620
TCAL**0410-5R6K 5.6±10% 60 7.96 74 0.43 590
TCAL**0410-6R8K 6.8±10% 60 7.96 68 0.48 550
TCAL**0410-8R2K 8.2±10% 60 7.96 53 0.52 530
TCAL**0410-100K 10±10% 60 7.96 45 0.58 500
TCAL**0410-120K 12±10% 60 2.52 34 0.63 480
TCAL**0410-150K 15±10% 60 2.52 20 0.72 460
TCAL**0410-180K 18±10% 60 2.52 14 0.77 430
TCAL**0410-220K 22±10% 60 2.52 9.9 0.84 410
TCAL**0410-270K 27±10% 50 2.52 7.6 0.94 390
TCAL**0410-330K 33±10% 50 2.52 6.3 1.03 370
TCAL**0410-390K 39±10% 50 2.52 6.3 1.12 350
TCAL**0410-470K 47±10% 50 2.52 6.3 1.22 340
TCAL**0410-560K 56±10% 40 2.52 6.2 1.34 320
TCAL**0410-680K 68±10% 40 2.52 5.7 1.47 305
TCAL**0410-820K 82±10% 35 2.52 5.3 1.62 290
TCAL**0410-101K 100±10% 35 2.52 4.8 1.80 275
TCAL**0410-121K 120±10% 60 0.796 3.8 3.70 185
TCAL**0410-151K 150±10% 60 0.796 3.5 4.20 175
TCAL**0410-181K 180±10% 60 0.796 3.3 4.60 165
TCAL**0410-221K 220±10% 60 0.796 3.0 5.10 155
TCAL**0410-271K 270±10% 60 0.796 2.8 5.80 145
TCAL**0410-331K 330±10% 60 0.796 2.6 6.40 137
TCAL**0410-391K 390±10% 60 0.796 2.4 7.00 133
TCAL**0410-471K 470±10% 60 0.796 2.25 7.70 126
TCAL**0410-561K 560±10% 60 0.796 2.1 8.50 120
TCAL**0410-681K 680±10% 55 0.796 1.95 9.40 113
TCAL**0410-821K 820±10% 55 0.796 1.85 10.5 100
TCAL**0410-102K 1000±10% 50 0.796 1.4 14.0 100

Characteristics (TCAL0510)

Part Number Inductance(µH) Q(min) Freq.(MHz) SRF(MHz)(min) DCR (Ω)(max) RDC(mA)(max)
TCAL**0510-R56M 0.56±10% 50 25.2 280 0.14 1150
TCAL**0510-R68K 0.68±10% 50 25.2 250 0.15 1100
TCAL**0510-R82M 0.82±10% 50 25.2 220 0.22 900
TCAL**0510-1R0K 1.0±10% 50 25.2 200 0.29 785
TCAL**0510-1R2K 1.2±10% 33 7.96 180 0.42 650
TCAL**0510-1R5K 1.5±10% 33 7.96 160 0.50 600
TCAL**0510-1R8K 1.8±10% 33 7.96 150 0.65 525
TCAL**0510-2R2K 2.2±10% 33 7.96 135 0.95 435
TCAL**0510-2R7K 2.7±10% 33 7.96 120 1.5 385
TCAL**0510-3R3K 3.3±10% 33 7.96 110 2.0 300
TCAL**0510-3R9K 3.9±10% 33 7.96 100 2.3 280
TCAL**0510-4R7K 4.7±10% 33 7.96 90 2.8 260
TCAL**0510-5R6K 5.6±10% 45 7.96 60 0.32 495
TCAL**0510-6R8K 6.8±10% 45 7.96 55 0.5 395
TCAL**0510-8R2K 8.2±10% 45 7.96 50 0.6 360
TCAL**0510-100K 10±10% 45 7.96 45 0.9 290
TCAL**0510-120K 12±10% 60 2.52 42 1.2 265
TCAL**0510-150K 15±10% 65 2.52 40 1.7 240
TCAL**0510-180K 18±10% 65 2.52 34 2.3 185
TCAL**0510-220K 22±10% 65 2.52 30 2.6 175
TCAL**0510-270K 27±10% 45 2.52 25 2.0 170
TCAL**0510-330K 33±10% 45 2.52 19 2.3 165
TCAL**0510-390K 39±10% 45 2.52 15 2.5 165
TCAL**0510-470K 47±10% 45 2.52 14 2.6 165
TCAL**0510-560K 56±10% 50 2.52 12 3.0 164
TCAL**0510-680K 68±10% 50 2.52 11 3.3 156
TCAL**0510-820K 82±10% 50 2.52 10 3.9 143
TCAL**0510-101K 100±10% 50 2.52 9 4.5 133
TCAL**0510-121K 120±10% 60 0.796 8.5 5.2 124
TCAL**0510-151K 150±10% 40 0.796 7.8 6.18 114
TCAL**0510-181K 180±10% 60 0.796 7.0 6.8 108
TCAL**0510-221K 220±10% 60 0.796 6.2 7.5 103
TCAL**0510-271K 270±10% 60 0.796 5.6 8.2 103
TCAL**0510-331K 330±10% 60 0.796 5.0 9.1 102
TCAL**0510-391K 390±10% 60 0.796 4.5 10 102
TCAL**0510-471K 470±10% 60 0.796 4.0 11 100
TCAL**0510-561K 560±10% 60 0.796 3.6 12.3 85
TCAL**0510-681K 680±10% 60 0.796 3.6 13.7 81
TCAL**0510-821K 820±10% 60 0.796 1.32 3.1 180
TCAL**0510-102K 1000±10% 60 0.796 1.25 4.1 156