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Chokes

Click to the picture for a detailTESLA BLATNÁ, a.s. offers a large assortment of basic suppression inductive elements designed for the EMC (electromagnetic compatibility) of the electrotechnical, telecommunication, computer and automation devices and systems. The production range includes the following types...

Axial chokes

Click to the picture for a detailChokes with axial leads are designed for wideband suppression of electronic devices and meet main suppression choke requirements, i.e. big high-frequency loss and very low quality coefficient Q. The max. DC current is adjusted to protect against supersaturation of the ferrite material. Resonance frequency cover (based on type) the range 0,042 - 115 MHz. The chokes are designed for assembly into PCB.

Chokes with axial leads, inductance range at 10 kHz
Load mA Type Dmax (mm) Lmax (mm) Inductance range Tolerance
80-620mA TL 01 6 16 2.2-2200µH ±10, ±20
200-2500mA TL 05 8 29 10-3300µH ±10, ±20
350-4000mA TL 06 10 32 10-3300µH ±10, ±20
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chokes TL 01, 02, 03
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Toroid chokes - current compensated

Click to the picture for a detailCurrent compensated toroid chokes are designed on toroid cores with high permeability. The choke has two symmetric coils with the same number of windings, the operating current creates partial magnetic poles with the interference. For the different currents creating at asymmetric interference the choke makes high inductance. The chokes can be used in suppression filters (suppression of asymmetric factor of interference voltage) for suppression of mains connections, suppression of distribution boards, signal devices, control systems etc. The resonance frequency covers (based on type) the range 0,01 - 100 MHz. The chokes can be delivered with or without plastic case and are designed for assembly into PCB.

Toroid chokes - current compensated
without case - values in mH for one winding, inductance range at 10kHz
Load A Type Dmax (mm) hmax (mm) Inductance range Tolerance
0.3 ... 3 TL 32 15 8 0.33-47mH ±35
0.4 ... 3 TL 33 19.2 9.7 1.2-47mH ±35
0.5 ... 5 TL 34 25 13.4 1.5-56mH ±35
0.8 ... 6 TL 35 30.5 15.7 1.5-56mH ±35
1.2 ... 8 TL 36 39.5 21 1.8-68mH ±35
Toroid chokes - current compensated
in horizontal case - values in mH for one winding, inductance range at 10kHz
Load A Type c (mm) d (mm) f (mm) Inductance range Tolerance
0.3 ... 3 TL 32P 18.6 18.4 13 0.33-47mH ±35
0.4 ... 3 TL 33P 23 23.2 13 1.2-47mH ±35
0.5 ... 5 TL 34P 27.3 28.5 16.5 1.5-56mH ±35
0.8 ... 6 TL 35P 34 33.6 19.5 1.5-56mH ±35
1.2 ... 8 TL 36P 43.2 43 24.8 1.8-68mH ±35
Toroid chokes - current compensated
vertical case - values in mH for one winding, inductance range at 10kHz
Load A Type A (mm) B (mm) C (mm) Inductance range Tolerance
0.3 ... 3 TL 62P 18 19.2 13.2 0.33-47mH ±35
0.4 ... 3 TL 63P 23 23.5 16 1.2-47mH ±35
0.5 ... 5 TL 64P 27.5 27.5 18.6 1.5-56mH ±35
0.8 ... 6 TL 65P 32.5 34.5 23.5 1.5-56mH ±35
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chokes TL 3x		 Click to the picture for a detail
chokes TL 3xp
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chokes TL 6xp
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Toroid chokes - power

Click to the picture for a detailPower toroid chokes are designed on toroid core with high saturation. The chokes have one coil and are designed for suppression of asymmetric factor of interference in electrical devices. The chokes can be used in suppression filters for suppression of lightning phase advancers, distributor boards, control circuits with triacs, thyristors, switching transistors etc. Resonance frequency covers (based on type) the range 0,01 - 10 MHz. The chokes can be delivered with or without plastic case and are designed for assembly into PCB.

Toroid chokes - power
without case, inductance range at 10kHz
Load mA Type Dmax (mm) hmax (mm) Inductance range Tolerance
0.3 ... 1.2 TL 42 15.7 8 0.33-3.3mH ±20
0.5 ... 1.5 TL 43 20.5 9.7 0.5-3.7mH ±20
0.5 ... 2.5 TL 44 25.5 13.4 0.5-5.2mH ±20
0.8 ... 3.5 TL 45 31.5 15.7 0.5-5.2mH ±20
0.5 ... 4 TL 46 40 21 0.5-10mH ±20
Toroid chokes - power
horizontal case, inductance range at 10kHz
Load A Type c (mm) d (mm) f (mm) Inductance range Tolerance
0.3 ... 1.2 TL 42P 18.6 18.4 13 0.33-3.3mH ±20
0.5 ... 1.5 TL 43P 23 23.2 13 0.5-3.7mH ±20
0.5 ... 2.5 TL 44P 27.3 28.5 16.5 0.5-5.2mH ±20
0.8 ... 3.5 TL 45P 34 33.6 19.5 0.5-5.2mH ±20
0.5 ... 4 TL 46P 43.2 43 24.8 0.5-10mH ±20
Toroid chokes - power
vertical case, inductance range at 10kHz
Load A Type A (mm) B (mm) C (mm) Inductance range Tolerance
0.3 ... 1.2 TL 82P 18 19.2 13.2 0.33-3.3mH ±20
0.5 ... 1.5 TL 83P 23 23.5 16 0.5-3.7mH ±20
0.5 ... 2.5 TL 84P 27.5 27.5 18.6 0.5-5.2mH ±20
0.8 ... 3.5 TL 85P 32.5 34.5 23.5 0.5-5.2mH ±20
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chokes TL 4x		 Click to the picture for a detail
chokes TL 4xp
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chokes TL 8xp
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High-frequency chokes on cylindric core

Click to the picture for a detailThese chokes designed for assembly into PCB are produced as self-supporting chokes on cylindrical cores with very low inductance level. In the chokes adjusted for high currents the supersaturation does not occur even at max. operation current (suppression of collector motors). The chokes can be used for suppression of supply circuits of small motors, motors of electrical appliances and motors for automotive industry.

High-frequency chokes on cylindric core
Load A Type Dmax (mm) Lmax (mm) Inductance
16 3WK 682 20 8 37 17-17.5µH
7 3WK 682 21 8 20.5 3.5-5.5µH
6 3WK 682 22 6 19 5.5-7.5µH
16 3WK 682 23 6 37 14-17.5µH
8 3WK 682 24 7 37 29-37µH
6 3WK 682 27 6 19 5.5-7.5µH
16 3WK 682 34 8 26 5.5-7.5µH
16 3WK 682 36 6.6 19 3.8-5.5µH
Click to the picture for a detail
chokes 3WK68x
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PDF catalogues

You can download electronic catalogs in Excel and PDF format.
File File description

    tlumivky-odrusovaci-chokes-suppression.pdf (315 kB)
 contains detailed information about suppression chokes-axial,-toroid, and about chokes on cylindric core
 
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