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Offline xxup  
#1 Posted : 08 July 2019 01:11:12(UTC)
xxup

Australia   
Joined: 15/03/2003(UTC)
Posts: 8,944
Location: Australia
The Marklin part E516520 costs $1.60 down here. There is mention on another thread of the capacity being 3.9 uH

The only one I can find locally is 3.3 uH ( https://www.altronics.com.au/p/l7016a-3.3uh-rf-inductor-choke/ ) with these specifications:

Rated Resistance: 0.34 ohm
DC Current Max: 670mA
Length: 11.0mm
Diameter: 4.0mm
Lead Diameter: 0.65mm
Lead Length: 25.0mm
Tolerance: ±10%
Temperature Rise: 20°C
Temperature Range: -20°C to +100°C
Dielectric Withstanding Voltage: 250V RMS

Is the difference between 3.3uH and 3.9uH significant?
Is the 670mA current limit enough for a DCM motor?
Adrian
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Offline DamonKelly  
#2 Posted : 08 July 2019 10:55:00(UTC)
DamonKelly

Australia   
Joined: 26/03/2006(UTC)
Posts: 1,409
Location: Brisbane, QLD
Originally Posted by: xxup Go to Quoted Post
The Marklin part E516520 costs $1.60 down here. There is mention on another thread of the capacity being 3.9 uH

The only one I can find locally is 3.3 uH ( https://www.altronics.com.au/p/l7016a-3.3uh-rf-inductor-choke/ ) with these specifications:

Rated Resistance: 0.34 ohm
DC Current Max: 670mA
Length: 11.0mm
Diameter: 4.0mm
Lead Diameter: 0.65mm
Lead Length: 25.0mm
Tolerance: ±10%
Temperature Rise: 20°C
Temperature Range: -20°C to +100°C
Dielectric Withstanding Voltage: 250V RMS

Is the difference between 3.3uH and 3.9uH significant?
Is the 670mA current limit enough for a DCM motor?


The 3.3uH will be close enough.
670mA should be fine, although other members might know better -- how much does a DCM motor draw?
--
Cheers,
Damon
thanks 1 user liked this useful post by DamonKelly
Offline xxup  
#3 Posted : 08 July 2019 14:46:25(UTC)
xxup

Australia   
Joined: 15/03/2003(UTC)
Posts: 8,944
Location: Australia
Thanks for the information Damon. Subject to comments from the others, I think I might order these on the weekend at $0.50 each for 10+. Altronics is down the road from me and they seem to have good stock..
Adrian
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