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ERSE Copper FoilQ  12awg Inductor

erse.jpg
The FoilQ line of coils offer improved bass dynamics, reduced microphonic distortion and uncompromising musical neutrality. ERSE’s FoilQ coils offer our purity guarantee (99.99% pure copper ). This level of purity guarantees maximum sonic quality and performance. FoilQ’s sonic excellence is maintained through ERSE’s proprietary low constant tension devices. This process maintains the crystalline structure of the copper foil and the orientation of the BOPP film, once again insuring maximum fidelity and performance.

ERSE’s 0.003 inch thick high purity copper foil reduces all skin effect from 0Hz to 50kHz. This reduced skin effect allows for a more linear inductance and ESR verses frequency then any other inductor including litz coils. ERSE’s high purity BOPP film is up to 33% thicker then the competition, which correlates to lower interwinding capacitance and improved sonics. The large surface area and thinness of the copper foil and BOPP film significantly reduce microphonics. Long term reliability is maintained of these FoilQ coils through ERSE’s vacuum fusing of the BOPP to the copper foil. This fusing process removes all oxygen and seals the copper foil from any outside contamination.

Features:

  • Zero Saturation
  • Zero Skin Effect to 50kHz
  • No Microphonics
  • Vacuum Sealed to Prevent Oxidation
  • Low D.C.R.
  • Very High Quality
  • RoHS Compliant

Specifications:

  • Tolerance: ± 2.5% centered on nominal value
  • Insulation Temperature: 200°C
  • 99.99% High Purity Copper PURITY GUARANTEE

 

 ♠

IMPORTANT NOTE: If you order an ERSE part which is currently not in stock, we will "first" try and fulfill it with an in-stock Alpha-Core part (which is technically and sonically identical), at the same "lower price" as the ERSE (we price match). If the value you selected is still not available from stock (from either foil inductor supplier), it can take up to 6 to 8 weeks (or more), for your order to arrive from ERSE...due to factory minimum order requirements.

ERSE-73513

QTY ADD

0.05mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-050

$16.93 $16.93 pcX USD Price

ERSE-73421

QTY ADD

0.08mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS # EAF12-080

$18.13 $18.13 pcX USD Price

ERSE-73512

QTY ADD

0.10mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-100

$19.36 $19.36 pcX USD Price

ERSE-73511

QTY ADD

0.12mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-120

$20.28 $20.28 pcX USD Price

ERSE-73510

QTY ADD

0.15mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-150

$21.83 $21.83 pcX USD Price

ERSE-73509

QTY ADD

0.18mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-180

$23.20 $23.20 pcX USD Price

ERSE-73508

QTY ADD

0.20mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-200

$24.08 $24.08 pcX USD Price

ERSE-73507

QTY ADD

0.22mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-220

$24.42 $24.42 pcX USD Price

ERSE-73506

QTY ADD

0.24mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-240

$24.91 $24.91 pcX USD Price

ERSE-73438

QTY ADD

0.25mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-250

$25.44 $25.44 pcX USD Price

ERSE-73505

QTY ADD

0.27mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-270

$26.34 $26.34 pcX USD Price

ERSE-73422

QTY ADD

0.30mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-300

$28.13 $28.13 pcX USD Price

ERSE-73420

QTY ADD

0.33mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-330

$28.88 $28.88 pcX USD Price

ERSE-73504

QTY ADD

0.35mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-350

$29.78 $29.78 pcX USD Price

ERSE-73503

QTY ADD

0.36mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-360

$30.15 $30.15 pcX USD Price

ERSE-73423

QTY ADD

0.39mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-390

$31.43 $31.43 pcX USD Price

ERSE-73502

QTY ADD

0.40mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-400

$31.93 $31.93 pcX USD Price

ERSE-73501

QTY ADD

0.43mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-430

$32.97 $32.97 pcX USD Price

ERSE-73500

QTY ADD

0.45mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-450

$33.66 $33.66 pcX USD Price

ERSE-73499

QTY ADD

0.47mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-470

$34.39 $34.39 pcX USD Price

ERSE-73437

QTY ADD

0.50mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-500

$35.32 $35.32 pcX USD Price

ERSE-73498

QTY ADD

0.51mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-510

$35.88 $35.88 pcX USD Price

ERSE-73497

QTY ADD

0.55mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-550

$37.23 $37.23 pcX USD Price

ERSE-73496

QTY ADD

0.56mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-560

$37.78 $37.78 pcX USD Price

ERSE-73495

QTY ADD

0.60mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-600

$38.96 $38.96 pcX USD Price

ERSE-73436

QTY ADD

0.62mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-620

$39.68 $39.68 pcX USD Price

ERSE-73494

QTY ADD

0.65mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-650

$40.58 $40.58 pcX USD Price

ERSE-73419

QTY ADD

0.68mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-680

$41.63 $41.63 pcX USD Price

ERSE-73493

QTY ADD

0.70mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-700

$42.18 $42.18 pcX USD Price

ERSE-73492

QTY ADD

0.75mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-750

$43.78 $43.78 pcX USD Price

ERSE-73491

QTY ADD

0.80mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-800

$45.28 $45.28 pcX USD Price

ERSE-73424

QTY ADD

0.82mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-820

$46.28 $46.28 pcX USD Price

ERSE-73490

QTY ADD

0.90mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-900

$48.21 $48.21 pcX USD Price

ERSE-73489

QTY ADD

0.91mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-910

$48.49 $48.49 pcX USD Price

ERSE-73418

QTY ADD

1.0mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-1000

$53.45 $53.45 pcX USD Price

ERSE-73488

QTY ADD

1.10mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-1100

$56.13 $56.13 pcX USD Price

ERSE-73417

QTY ADD

1.20mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-1200

$58.63 $58.63 pcX USD Price

ERSE-73487

QTY ADD

1.30mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-1300

$61.14 $61.14 pcX USD Price

ERSE-73416

QTY ADD

1.50mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-1500

$65.60 $65.60 pcX USD Price

ERSE-73486

QTY ADD

1.60mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-1600

$67.81 $67.81 pcX USD Price

ERSE-73485

QTY ADD

1.80mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-1800

$72.25 $72.25 pcX USD Price

ERSE-73409

QTY ADD

2.0mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS. #EAF12-2000

$76.38 $76.38 pcX USD Price

ERSE-73415

QTY ADD

2.20mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-2200

$80.49 $80.49 pcX USD Price

ERSE-73484

QTY ADD

2.40mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-2400

$84.10 $84.10 pcX USD Price

ERSE-73435

QTY ADD

2.50mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-2500

$86.25 $86.25 pcX USD Price

ERSE-73483

QTY ADD

2.70mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-2700

$89.79 $89.79 pcX USD Price

ERSE-73434

QTY ADD

3.0mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-3000

$95.37 $95.37 pcX USD Price

ERSE-73414

QTY ADD

3.30mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-3300

$100.35 $100.35 pcX USD Price

ERSE-73482

QTY ADD

3.60mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-3600

$104.98 $104.98 pcX USD Price

ERSE-73481

QTY ADD

3.90mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-3900

$109.97 $109.97 pcX USD Price

ERSE-73480

QTY ADD

4.0mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-4000

$111.53 $111.53 pcX USD Price

ERSE-73479

QTY ADD

4.30mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-4300

$116.07 $116.07 pcX USD Price

ERSE-73478

QTY ADD

4.70mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-4700

$121.68 $121.68 pcX USD Price

ERSE-73477

QTY ADD

5.0mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-5000

$126.32 $126.32 pcX USD Price

ERSE-73476

QTY ADD

5.10mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-5100

$127.27 $127.27 pcX USD Price

ERSE-73475

QTY ADD

5.50mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-5500

$133.17 $133.17 pcX USD Price

ERSE-73474

QTY ADD

5.60mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-5600

$134.13 $134.13 pcX USD Price

ERSE-73473

QTY ADD

6.0mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-6000

$139.34 $139.34 pcX USD Price

ERSE-73472

QTY ADD

6.20mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-6200

$142.17 $142.17 pcX USD Price

ERSE-73471

QTY ADD

6.5mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-6500

$145.88 $145.88 pcX USD Price

ERSE-73470

QTY ADD

6.80mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-6800

$150.73 $150.73 pcX USD Price

ERSE-73469

QTY ADD

7.0mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-7000

$153.28 $153.28 pcX USD Price

ERSE-73468

QTY ADD

7.50mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-7500

$159.90 $159.90 pcX USD Price

ERSE-73425

QTY ADD

8.0mH, FOILQ- COPPER FOIL AIR CORE INDUCTORS #EAF12-8000

$164.21 $164.21 pcX USD Price

ERSE-73467

QTY ADD

8.20mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-8200

$168.20 $168.20 pcX USD Price

ERSE-73466

QTY ADD

8.5mH, FOILQ-COPPER FOIL AIR CORE INDUCTORS #EAF12-8500

$171.41 $171.41 pcX USD Price

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