Features Applications n High impedance value n Noise suppression n Current rating up to 400 mA n Personal computers n RoHS compliant* and halogen free** n Display panels SRF2012A Series - Common Mode Chip Inductors Electrical Specifications General Specifications Rated Voltage .......................... 100 VDC Impedance Withstanding Voltage 100 MHz Insulation DCR IDC ................................. 250 VDC, 3 Sec. Tolerance Resistance Max. Max. Operating Temperature 2.0 0.2 Part Number (W) (%) (MW) Min. (W) (mA) ................................-55 C to +125 C (.079 .008) SRF2012-300YA 30 25 10 0.20 400 (Temperature rise included) Storage Temperature SRF2012-670YA 67 25 10 0.25 400 ................................-55 C to +125 C SRF2012-900YA 90 25 10 0.30 400 Temperature Rise ......20 C max. at IDC SRF2012-121YA 120 25 10 0.30 400 SRF2012-161YA 160 25 10 0.35 350 Materials 0.15 0.1 SRF2012-181YA 180 25 10(.006 .004) 0.35 350 Core ..............................................Ferrite 0.46 0.1 SRF2012-201YA 200 25 10 0.40 300 12 ( .018 .004) Wire ............................Enameled copper SRF2012-221YA 220 25 10 0.40 300 Terminal ....................................Ag/Ni/Sn SRF2012-261YA 260 25 10 0.40 300 Packaging ....... 2000 pcs. per 7-inch reel SRF2012-301YA 300 25 10 0.50 300 Product Dimensions SRF2012-361YA 360 25 10 0.50 300 SRF2012-371YA 370 25 10 0.50 300 2.0 0.2 0.46 0.1 4 3 (.079 .008) SRF2012-501YA 500 25 10 0.50 300 ( .018 .004) 2.0 0.2 SRF2012-671YA 670 25 10 0.60 140 (.079 .008) 0.55 0.1 0.55 0.1 SRF2012-901YA 900 25 10 0.88 100 ( .022 .004) ( .022 .004) Soldering Profile 0.15 0.1 1.2 0.2 275 (.006 .004) (.047 .008) <1> Maximum of 10 seconds between 260C peak 0.46 0.1 +255C and +260C 0.15 0.1 <1> 255C 12 ( .018 .004) (.006 .004) 1.2 0.2 225 0.46 0.1 (.047 .008) 220C 12 ( .018 .004) Ramp Down 190C 6C/second 60 - 90 seconds maximum 175 150C 12 0.46 0.1 125 4 3 120 - 150 seconds 1.25 ( .018 .004) (.049) 10 seconds minimum 0.45 0.46 0.1 0.55 0.14 3 0.55 0.1 4 3 75 (.018) ( .018 .004) ( .022 .004) ( .022 .004) Ramp Up 3C/second maximum 1.1 (.043) 0.55 0.1 0.55 0.1 2.6 25 ( .022 .004) ( .022 .004) (.102) 050 100 150 200 250 300 1.2 0.2 (.047 .008) Rev. 02/22/05 Time (seconds) 1.2 0.2 1.2 0.2 How to Order Schematic (.047 .008) (.047 .008) SRF2012 - 201 Y A 1 2 MM 1.2 0.2 DIMENSIONS: (INCHES) Model (.047 .008) Value Code (see table) 4 3 12 Tolerance Code Recommended Layout 1.25 (.049) Model Suffix 0.45 124 3 (.018) 1.25 (.049) 1.1 (.043) 0.45 2.6 4 3 (.018) WARNING Cancer and Reproductive Harm www.P65Warnings.ca.gov (.102) 1.1 * RoHS Directive 2015/863, Mar 31, 2015 and Annex. (.043) 2.6 ** Bourns considers a product to be halogen free if (a) the Bromine (Br) content oris less 900 ppm(b) the Chlorine (.102) (Cl) content is 900 ppm or less and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less. Specifications are subject to change without notice. Users should verify actual device performance in their specific MM applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the 1 DIMENSIONS: 2 (INCHES) last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 1 2 4 3 4 3 *RoHS COMPLIANT & **HALOGEN FREE *RoHS COMPLIANT LEAD FREE LEAD FREE VERSIONS ARE RoHS COMPLIANT* Temperature (C) SRF2012A Series - Common Mode Chip Inductors Typical Impedance vs. Frequency Curves SRF2012-300YA SRF2012-670YA 1000 1000 100 100 Common Mode Common Mode 10 10 Normal Mode Normal Mode 1 1 0.1 0.1 110 100 1000 10000 110100 1000 10000 Frequency (MHz) Frequency (MHz) SRF2012-900YA SRF2012-121YA 1000 1000 100 100 Common Mode Common Mode 10 10 Normal Mode Normal Mode 1 1 0.1 0.1 110 100 1000 10000 110100 1000 10000 Frequency (MHz) Frequency (MHz) SRF2012-161YA SRF2012-181YA 1000 1000 Common Mode Common Mode 100 100 10 10 Normal Mode Normal Mode 1 1 0.1 0.1 110 100 1000 10000 110 100 1000 10000 Frequency (MHz) Frequency (MHz) SRF2012-201YA SRF2012-221YA 1000 1000 Common Mode 100 100 Common Mode 10 10 Normal Mode Normal Mode 1 1 0.1 0.1 110 100 1000 10000 110100 100010000 Frequency (MHz) Frequency (MHz) SRF2012-261YA SRF2012-301YA Specifications are subject to change without notice. 1000 1000 Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Common Mode 100 100 Common Mode 10 10 Normal Mode Normal Mode 1 1 0.1 0.1 110 100 1000 10000 110 100 1000 10000 Frequency (MHz) Frequency (MHz) SRF2012-361YA SRF2012-371YA 1000 1000 Common Mode Common Mode 100 100 10 10 Normal Mode Normal Mode 1 1 0.1 0.1 110100 1000 10000 110 100 1000 10000 Frequency (MHz) Frequency (MHz) SRF2012-501YA SRF2012-671YA 10000 10000 1000 1000 Common Mode Common Mode 100 100 10 10 Normal Mode Normal Mode 1 1 0.1 0.1 110 100 1000 10000 110100 100010000 Frequency (MHz) Frequency (MHz) SRF2012-901YA 10000 1000 Common Mode 100 10 Normal Mode 1 110100 1000 10000 Frequency (MHz) Impedance (Ohms) Impedance (Ohms) Impedance (Ohms) Impedance (Ohms) Impedance (Ohms) Impedance (Ohms) Impedance (Ohms) Impedance (Ohms) Impedance (Ohms) Impedance (Ohms) Impedance (Ohms) Impedance (Ohms) Impedance (Ohms) Impedance (Ohms) Impedance (Ohms)