Document 992 Bias Injection Choke – KA4909-AL Developed for use with Texas Instruments DS90UB901Q serializer and DS90UB902Q deserializer for Low-Voltage Differential Signaling (LVDS) applications. This center tapped inductor provides over 1 kOhm impedance from 1 MHz – 800 MHz. Can be used with additional 10 µH and 1 µH inductors to achieve even wider band differential signal rejection. AEC-Q200 Grade 3 (–40°C to +85°C) qualified Part number1 Inductance2 ±20% (µH) KA4909-AL_165 DCR max3 (Ohms) Irms4 (mA) 0.46 650 Core material Ferrite Terminations RoHS compliant tin-silver-copper over tin over nickel over phos bronze. Weight 220 mg Ambient temperature –40°C to +105°C Storage temperature Component: –40°C to +105°C. Tape and reel 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 Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 60 per billion hours / 16,666,667 hours, calculated per Telcordia SR-332 Packaging 250/7″reel; 1000/13″ reel Plastic tape: 16 mm wide, 0.35 mm thick, 12 mm pocket spacing, 5.0 mm pocket depth PCB washing Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf 1. When ordering, please specify packaging code: KA4909-ALC Packaging:C =7″ machine ready reel. EIA-481 embossed plastic tape, 250 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 (1000 parts per full reel). 2. Inductance tested from pins 1 to 3 at 100 kHz, 0.007 Vrms, 0 Adc. 3. DCR is tested from pins 1 to 3 4. Current that causes a 20°C rise from 25°C ambient. 5. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Impedance vs Frequency Impedance (kOhms) 5 4 3 2 1 0 Dimensions are in 1 10 100 Frequency (MHz) 1000 inches mm US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 992 Revised 10/28/14 © Coilcraft Inc. 2014 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.