Document 105-1 Chip Inductors – 1812CS Series (4532) • Higher SRF values than 1812 size parts with ferrite cores • 5% tolerances for all values • 19 inductance values from 1.0 to 33 µH Part number1 1812CS-102XJL_ 1812CS-122XJL_ 1812CS-152X_L_ 1812CS-182XJL_ 1812CS-222X_L_ 1812CS-272X_L_ 1812CS-332X_L_ 1812CS-392X_L_ 1812CS-472XJL_ 1812CS-562XJL_ 1812CS-682XJL_ 1812CS-822X_L_ 1812CS-103XJL_ 1812CS-123XJL_ 1812CS-153X_L_ 1812CS-183XJL_ 1812CS-223X_L_ 1812CS-273XJL_ 1812CS-333X_L_ Inductance2 (µH) 1.0 @ 7.9 MHz 1.2 @ 7.9 MHz 1.5 @ 7.9 MHz 1.8 @ 7.9 MHz 2.2 @ 7.9 MHz 2.7 @ 7.9 MHz 3.3 @ 7.9 MHz 3.9 @ 7.9 MHz 4.7 @ 7.9 MHz 5.6 @ 7.9 MHz 6.8 @ 7.9 MHz 8.2 @ 7.9 MHz 10 @ 7.9 MHz 12 @ 2.5 MHz 15 @ 2.5 MHz 18 @ 2.5 MHz 22 @ 2.5 MHz 27 @ 2.5 MHz 33 @ 2.5 MHz Percent tolerance3 5 5 5,2 5 5,2 5,2 5,2 5,2 5 5 5 5,2 5 5 5,2 5 5,2 5 5,2 1. When ordering, specify tolerance, termination and packaging codes: 1812CS-333XGLC Tolerance: G = 2% J = 5% (Table shows stock tolerances in bold.) Termination: L = RoHS compliant silver-palladium-platinum-glass frit. Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (600 parts per full reel). B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter C instead. D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (2200 parts per full reel). 2. Inductance measured using a Coilcraft SMD-A fixture in an Agilent/HP 4286A impedance analyzer with Coilcraft-provided correlation pieces. 3. Tolerances in bold are stocked for immediate shipment. 4. Q measured using an Agilent/HP 4291A with an Agilent/HP 16193 test fixture. 5. SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD-D test fixture. 6. DCR measured on a Cambridge Technology micro-ohmmeter and a Coilcraft CCF859 test fixture. 7. Current that causes a 15°C temperature rise from 25°C ambient. 8. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Request free evaluation samples by contacting Coilcraft or visiting www.coilcraft.com. Q min4 60 @ 50 MHz 62 @ 50 MHz 65 @ 50 MHz 68 @ 50 MHz 63 @ 50 MHz 63 @ 50 MHz 65 @ 50 MHz 69 @ 50 MHz 63 @ 50 MHz 59 @ 50 MHz 60 @ 50 MHz 47 @ 50 MHz 36 @ 50 MHz 35 @ 10 MHz 34 @ 10 MHz 30 @ 10 MHz 32 @ 10 MHz 29 @ 10 MHz 20 @ 10 MHz SRF min5 (MHz) 310 230 210 190 170 160 145 130 115 100 90 80 70 60 50 45 40 30 20 Designer’s Kit C337 contains 10 of each 5% part Core material Ceramic Terminations RoHS compliant silver-palladium-platinum-glass frit. Other terminations available at additional cost. Weight 109 – 128 mg Ambient temperature –40°C to +125°C with Irms current, +125°C to +140°C with derated current Storage temperature Component: –40°C to +140°C. Packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Temperature Coefficient of Inductance (TCL) +25 to +125 ppm/°C Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) One per billion hours / one billion hours, calculated per Telcordia SR-332 Packaging 600 per 7″ reel; 2200 per 13″ reel. Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 3.7 mm pocket depth PCB washing Only pure water or alcohol recommended Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Irms7 (mA) 480 480 430 380 340 300 270 240 230 220 210 200 190 180 170 160 155 150 145 DCR max6 (Ohms) 1.2 1.2 1.6 2.0 2.2 3.2 3.8 5.0 5.4 5.7 6.6 7.0 7.7 8.7 9.6 10.5 11.5 12.5 13.5 Document 105-1 Revised 04/16/09 Document 105-2 Chip Inductors – 1812CS Series (4532) Typical Q vs Frequency Typical L vs Frequency 80 40 1.8 µH 33.0 µH 3.9 µH 70 30 Q Factor 50 Inductance (µH) 60 8.2 µH 40 30 15.0 µH 22.0 µH 22.0 µH 20 15.0 µH 8.2 µH 10 20 33.0 µH 3.9 µH 1.8 µH 10 0 0 1 10 1 100 100 10 1000 Frequency (MHz) Frequency (MHz) Irms Derating B overall 120 110 A H C F I G J F 90 I E terminal 80 D Terminal wraparound: approx 0.015/0,38 both ends 70 Recommended Land Pattern 60 50 40 A max 30 0.195 0.150 0.135 0.070 0.100 0.025 0.128 0.120 0.045 0.118 inches 25°C Percent of rated Irms 100 20 4,95 B max 3,81 C max 3,43 D ref 1,78 E 2,54 F 0,64 G 3,25 H 3,05 I 1,14 J 3,00 mm 10 0 -40 -20 0 20 40 60 80 100 120 140 Ambient temperature (°C) Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 105-2 Revised 04/16/09