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 ? 184 ? e 12 q 3 p4l 456789 product code inductance classification 10 11 12 suffix packaging core winding size t explanation of part numbers features small type (11.5 10.0 h4.0 mm) high power (21 a to 28 a) low loss (r dc :0.7 to 1.56 m ) tighter dcr tolerance ( 5 % to 10 % ) suitable for high frequency circuit (up to 1 mhz) low buzz noise due to its gap-less structure standard packing quantity 1000 pcs./reel power ch oke coil series: pcc-m104l (mc) small mounting size for multi-phase dc-dc converter circuits standard parts part no. inductance (at 20 c) ? 1 rated current (a) ? 2 dc resistance (at 20 c) (m ) l0 at 0a l1 l2 (reference) (h) (h) measurement current (a) (h) measurement current (a) etqp4lr19wfc (0.20) 0.1920 % 21 (0.17) 30 28 0.70 10 % etqp4lr36wfc (0.37) 0.3620 % 17 (0.34) 24 24 1.10 5 % etqp4lr56wfc (0.60) 0.5620 % 15 (0.53) 21 21 1.56 5 % etqp4lr45xfc 0.45+20/?25 % ?? (0.38) 25 25 1.10 5 % ( ? 1) inductance is measured at 100 khz. ( ? 2) rated current de? nes actual value of dc current, when temperature rise of coil becomes 40 k. recommended applications servers, routers, dc-dc converters for driving cpus notebook pc power supply modules sep. 2010 00
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 ? 185 ? p2 p1 11.5 max. 4.0 max. 0.01 min. 10.0 0.3 2.5 4.0 0.2 p1 p2 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0246810121 416182 02224262830 (a) (uh) etqp4lr56wfc etqp4lr36wfc etqp4lr19wfc etqp4lr45xfc 0 10 20 30 40 50 60 70 80 90 100 051015 20 25 30 idc (a) temp. rise (k) etqp4lr56wfc etqp4lr36wfc / etqp4lr45xfc etqp4lr19wfc 3.8 6.0 3.8 4.6 performance characteristics (ref er ence) dimensions in mm (not to scale) connection recommended land pattern in mm (not to scale) inductance vs dc current case temperature vs dc current packaging methods please see pages 202 to 203 soldering conditions please see page 204 safety precautions please see page 205 sep. 2010 00
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