Automotive Ferrite EMI Solutions
•
Control Area Networks (CAN)–
two wire control data
bus; engine control modules; electric drivetrain;
chassis; drive-by-wire
•
Safety Systems
– air bags; passenger occupancy
detection; anti-lock brakes; remote tire pressure
sensing; safety control module; drowsiness monitors
•
Security Systems
– telematic navigation; remote and passive keyless entry
•
DC motors
– cooling fan; windshield wipers; power seats, windows, mirrors, sun roof, antenna, etc.
•
Miscellaneous
– active suspension; power supplies; instrumentation; entertainment systems;
speed sensors; moisture sensing wipers
Laird Technologies’ Rods
Laird Technologies offers an extensive range of rod sizes in three standard ferrite materials.
Features:
Standard sizes and materials to cover the gamut of automotive requirements. Custom sizes can
be tooled quickly. Custom features such as slotted or notched ends can be produced. Standard
materials available for ferrite rods include Laird Technologies’ 55 and 28 (250 and 850 perm).
Applications:
EMI suppression for spark ignition coils and DC motors. RFID coils for passive keyless entry. Transmitter/receiver
antenna for remote.
Part
Number
__M0079-X00
__M0087-X00
__M0099-X00
__M0110-X00
__M0118-X00
__M0150-X00
__M0130-X00
__M0158-X00
Part OD
mm
(inches)
2.00
(0.079)
2.40
(0.094)
2.50
(0.099)
2.80
(0.110)
3.00
(0.118)
3.30
(0.150)
3.85
(0.152)
4.00
(0.158)
Length Range
mm
(inches)
12.00
(0.472)
8.0 - 20.0
(0.315 - 0.787)
8.0 - 16.0
(0.315 - 0.630)
8.0 - 20.0
(0.315 - 0.787)
8.0 - 20.0
(0.315 - 0.787)
8.0 - 20.0
(0.315 - 0.787)
8.0 - 30.0
(0.315 - 1.181)
10.0 - 25.0
(0.394 - 0.984)
Part
Number
__M0185-X00
__M0197-X00
__M0209-X00
__M0236-X00
__M0250-X00
__M0256-X00
__M0315-X00
__M0394-XX0
Part OD
mm
(inches)
4.70
(0.185)
5.00
(0.197)
5.30
(0.209)
6.00
(0.236)
6.35
(0.250)
6.50
(0.256)
8.00
(0.315)
10.00
(0.394)
Length Range
mm
(inches)
10.0 - 20.0
(0.394 - 0.787)
7.0 - 30.0
(0.275 - 1.181)
7.0 - 20.0
(0.275 - 0.787)
15.0 - 30.0
(0.591 - 1.181)
15.0 - 35.0
(0.591 - 1.378)
15.0 - 30.0
(0.591 - 1.181)
15.0 - 35.0
(0.591 - 1.378)
15.0 - 40.0
(0.591 - 1.575)
Partial list of standard rod sizes.
www.lairdtech.com
SIP-BRO-RODS-0208
µ
rod
as a function of
m with material
permeability
as a parameter
µ
rod
LI/AN
2
µ
rod
as a function of l
c
/l. The
results for a wide variety of ferrite
rods are contained within the shaded
area (dimensions in mm, L in H)
www.lairdtech.com
SIP-BRO-RODS-0208