design and speci? cations are each subject to change without notice. ask factory for the current technical speci? cations before purchase and/or use. should a safety concern arise regarding this product, please be sure to contact us immediately. choke coils eqa t t 123456789 product code inductance suffix classification 10 11 12 size type explanation of part numbers choke coil for lpf series: twin type : 15a?t, 17a?t recommended applications home theater digital ampli? ers, a/v-receivers, audio/visual equipment dc-dc converters features low leakage ? ux low loss due to low r dc (using ? at wire) ? high quality sound, low distortion ? mounting improves with twin type. ? rohs compliant singapore industrial property : patents 1 (pending) parts no. inductance (?) tolerance (%) saturation currentat at 100 ? (a) heat current t=40 ? (a) r dc max. at 20 ? etqa15a7r0t 7.0 15 16.0 11.0 10.0 m ETQA15A100T 10.0 15 12.0 10.0 etqa15a150t 15.0 15 8.0 8.0 etqa17a7r0t 7.0 15 22.0 12.0 12.0 m etqa17a100t 10.0 15 16.0 11.0 etqa17a150t 15.0 15 10.0 9.0 for lp f of multichannel digital ampli ers, with a small mounting area (small size , low r , high power) 15a?t 17a?t (note1) inductan ce is measured at 10 khz (note2) satur ation curren t is the current value when inductance decreases to 80 % of its initial value (note3) heat curr ent is the actual value of the current when the temperature rise of coil increases 40 c. please note that the ambient temperature within the product will have an effect on how quickly the coil temperature increases by 40 c. standard parts etqa a type jun. 2006
design and speci? cations are each subject to change without notice. ask factory for the current technical speci? cations before purchase and/or use. should a safety concern arise regarding this product, please be sure to contact us immediately. choke coils 22.5 1.0 4.0 7.5 4.0 1 1 3 3 2 2 4 4 8.0 15.0 0.5 16.0 max. 4.5 +0.5 ?.0 4.0 0.1 4 f 1. 10 0.02 4.0 0.1 7.5 0.1 8.0 0.1 23.0 1.0 4.0 8.0 4.0 8.0 17.5 0.5 18.0 max. 4.5 +0.5 ?.0 4.0 0.1 4 f 1. 1 0 0.02 4.0 0.1 8.0 0.1 8.0 0.1 1 1 3 3 2 2 4 4 dimensions in mm (not to scale) etqa15a t type etqa17a t type cautions for use for upgraded reliability and safety, consider following precautionary items. 1. saturation current the rate d current is de ned as the smaller value of either the current value when the inductance drops 10 % from its initial point. do no t operate these coils beyond the speci ed rated current. 2. heat current the measuremen t current value is the actual value of the current at which th e temperature of the coil becomes 40 c while dc current ? ows. take the temperature rise during operation into consideration. 3. mounting 1 the core may be damaged when excessive force or shock are applied. do no t use products that have been dropped. 2 do not allo w the coil to make contact with other parts and take the interaction between them, magnetic interference and electrostatic into consideration. 3 do no t bend the terminals during mounting. the termin als must connect correctly. do no t apply any force to them. 4 the ? oat on pwb must not occur after mounting. 4. soldering 1 do no t press on the terminals from above with a soldering iron. 2 use ux so the copper wi re does not decay. (use only the corr ect amoutns of chloride, ph and other types of solvents) 3 when u sing a soldering iron, only repeat the solderin g process at intervals of 3 seconds minimum. 4 when u sing the dipping method for soldering, cool th e back of pwb for 30 seconds after dipping. 5. storage 1 avoid high temperatures, moisture, gases and magnetic elds. 2 after storage for more than 1 year, only use the products after inspecting their outer structure. (pay attentio n to possible oxidation of the core and inferiority of lead wire solderability) jun. 2006
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