# Through Hole Inductors (TCAL)

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### 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:

• Inductance Range (H):
• The rated inductance range of the inductor.
• This is designated by ±10% of the inductance.

• 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.

• 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.

• 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

### Order Codes (TCAL)

TCAL N TR 0204 - R10 M

 Part Number TCAL
 Form N Normal Form S Short Form F F Forming U U Forming P Pana Forming withoutcoating of lead wire PC Pana Forming withcoating of lead wire
 Package P Bulk TR Taping Reel TB Taping Box
 Size 0204 2.8×5.0mm 0307 3.0×7.0mm 0410 4.0×10.0mm 0510 5.0×10.0mm

 Inductance R10 0.10µH 1R0 1.00µH 100 10.00µH 101 100.00µH 102 1000.00µH
 Tolerance J 5% K 10% M 20%