Document 992
BiasInjectionChoke
–
KA4909-AL
Developed for use withTexas Instruments DS90UB901Q serial-
izer 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
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
Part
Inductance2
±±20 (ꢀµ)
DCR max3
(Ohms)
Irms4
number1
(mA)
KA4909-AL_
165
0.46
650
1. When ordering, please specify packaging code:
KA4929-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
5
4
3
2
1
0
inches
Dimensions are in
mm
1
10
100
1000
Frequency (MHz)
Document 992 Revised 10/28/14
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
© 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.