0.46 0.1 ( .018 .004) 0.55 0.1 ( .022 .004) 0.55 0.1 ( .022 .004) 0.46 0.1 ( .018 .004) 1.2 0.2 (.047 .008) 0.15 0.1 (.006 .004) 1.2 0.2 (.047 .008) 2.0 0.2 (.079 .008) 12 4 3 features shielded construction ? low radiation bi? lar wound impedance range: 67 to 360 ohms @ 100 mhz aec-q200 quali? ed rohs compliant* and halogen free** applications emi suppression for: - data and signal lines - canbus - automotive electronics - consumer electronics - telecom devices srf2012aa series - common mode chip inductors * rohs directive 2002/95/ec jan. 27, 2003 including annex and rohs recast 2011/65/eu june 8, 2011. **bourns considers a product to be ?halogen free? if (a) the bromine (br) content is 900 ppm or less; (b) the chlorine (cl) content is 900 ppm or less; and (c) the total bromine (br) and chlorine (cl) content is 1500 ppm or less. speci? cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. users should verify actual device performance in their speci? c applications. rated voltage ............................ 50 vdc withstanding voltage ............... 125 vdc insulation resistance ........... 10 megohms min. @ 100 vdc operating temperature ................................-40 ? to +125 ? (temperature rise included) storage temperature ................................-40 ? to +125 ? temperature rise .....20 ? at rated irms electrical speci cations @ 25 ? bourns part number impedance @ 100 mhz / 1 v dcr typ. () dcr max. () irms (ma) z () tolerance (%) srf2012a-670ya 67 ?25 0.15 0.25 400 srf2012a-900ya 90 ?25 0.16 0.30 400 srf2012a-121ya 120 ?25 0.20 0.30 400 SRF2012A-161YA 160 ?25 0.25 0.35 350 srf2012a-181ya 180 ?25 0.25 0.35 350 srf2012a-201ya 200 ?25 0.30 0.40 300 srf2012a-221ya 220 ?25 0.30 0.40 300 srf2012a-261ya 260 ?25 0.35 0.40 300 srf2012a-361ya 360 ?25 0.45 0.50 300 general speci cations core ..............................................ferrite wire ............................enameled copper terminal finish ...................................sn packaging ....... 2000 pcs. per 7-inch reel materials product dimensions schematic how to order srf2012a - 201 y a model value code (see table) tolerance code model suf x 1 4 2 3 soldering pro le 1.25 (.049) 0.45 (.018) 1.1 (.043) 2.6 (.102) 12 4 3 asia-paci c: tel: +886-2 2562-4117 ?fax: +886-2 2562-4116 emea: tel: +36 88 520 390 ?fax: +36 88 520 211 the americas: tel: +1-951 781-5500 ?fax: +1-951 781-5700 www.bourns.com dimensions: mm (inches) recommended layout 25 time (seconds) reflow times: 3 times max. pre-heating soldering natural cooling temperature (c) 20 ~ 40 s 60 ~ 150 s 60 ~ 180 s 150 c 200 c 217 c tp (260 c) 40 s max. 480 s max. *rohs compliant & **halogen free
1000 100 10 1 0.1 1 10 100 frequency (mhz) srf2012a-670ya impedance (ohms) 1000 10000 common mode normal mode 1000 100 10 1 0.1 1 10 100 frequency (mhz) srf2012a-121ya impedance (ohms) 1000 10000 common mode normal mode 1000 100 10 1 0.1 1 10 100 frequency (mhz) srf2012a-900ya impedance (ohms) 1000 10000 common mode normal mode 1000 100 10 1 0.1 1 10 100 frequency (mhz) SRF2012A-161YA impedance (ohms) 1000 10000 common mode normal mode 1000 100 10 1 0.1 1 10 100 frequency (mhz) srf2012a-201ya impedance (ohms) 1000 10000 common mode normal mode 1000 100 10 1 0.1 1 10 100 frequency (mhz) srf2012a-181ya impedance (ohms) 1000 10000 common mode normal mode 1000 100 10 1 0.1 1 10 100 frequency (mhz) srf2012a-221ya impedance (ohms) 1000 10000 common mode normal mode 1000 100 10 1 0.1 1 10 100 frequency (mhz) srf2012a-261ya impedance (ohms) 1000 10000 common mode normal mode speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. users should verify actual device performance in their speci c applications. srf2012aa series - common mode chip inductors typical impedance vs. frequency curves
user direction of feed 1.45 0.1 (.057 .004) 0.24 0.05 (.009 .002) 2.25 0.1 (.089 .004) 1.5 + 0.1 (.059 + .004) dia. 1.1 + 0.1 (.043 + .004) dia. a a 1.50 0.1 (.059 .004) section a-a 8.0 0.1 (.315 .004) 1.75 0.1 (.069 .004) 3.5 0.05 (.138 .002) 4.0 0.1 (.157 .004) 4.0 0.1 (.157 .004) 2.0 0.05 (.079 .002) srf0504 series - line filter packaging speci cations dimensions: mm (inches) qty: 2000 pcs. per reel 08/15 speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. users should verify actual device performance in their speci c applications. srf2012aa series - common mode chip inductors 9.0 0.5 (.354 .020) 60 2 (2.362 .079) 178 2 (7.008 .079) 13.5 0.5 (.531 .020) dia. 120 1.9 (.075) r 13.5 0.5 (.531 .020) r 20.5 (.807) 0.5 (.020) r 10.5 (.413) r 1000 10000 100 10 1 0.1 1 10 100 frequency (mhz) srf2012a-361ya impedance (ohms) 1000 10000 common mode normal mode typical impedance vs. frequency curves (continued)
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