As for most parts, if you order more than just a few, LCSC is the cheapest source of these components (however, you need to consider the rather expensive shipping costs).
The prices given are for budgetary purposes only.
As for most parts, if you order more than just a few, LCSC is the cheapest source of these components (however, you need to consider the rather expensive shipping costs).
The prices given are for budgetary purposes only.
On the MAX11200EEE+
and the MAX112100EEE+
, bit 3 of the command byte is named IMPD
but this bit is never described in detail in the datasheet.
The meaning of this bit is Immediate power-down
. When you set it to 1
, the IC will switch to power-down mode. This is evidenced by the power-down example in Table 8
in the datasheet.
The MAX11200EEE+
and the MAX112100EEE+
operate using SPI Mode 0
. Therefore, CPHA=0
& CPOL=0
.
For more information, see the datasheet.
Generally, SMD ferrites of a given size are characterized by:
100 MHz
)100 Ω @ 100 MHz
) do not filter EMI that well, but also distort your data signals less. Use them for high speed signals above 1 MHz
1kΩ @ 100 MHz
, filter EMI really well but will distort any high speed signal. Use them for low speed signals below 1 MHz
0.1A
of current rating to be able to handle soft short circuits20%
is typically fine)As with most passive parts, LCSC generally has the lowest pricing if you buy a bunch of parts.
Keep in mind the expensive shipping, but since they are often 50 times cheaper (!) than other distributors, it might be worth it even if just ordering a reel of ferrites.
This section contains cheap SMD ferrite beads for < 1A
current rating.
Low impedance (<= 500Ω
):
0.0019€/pc@4000pc = 7.60€/reel
High impedance (>= 500Ω
):
0.0026€/pc@4000pcs = 10.40€/reel
0.0027€/pc@4000pc = 10.80€/reel
0.0044€/pc@4000pc = 17.60€/reel
0.01264€/pc@4000pc = 50.56€/reel
0.0181€/pc = 72.40€/reel
This section contains cheap SMD ferrite beads for > 1A
current rating.
Low impedance (<= 500Ω
):
0.006€/pc@4000pc = 24. 00€/reel
0.0086€/pc@4000pc = 34.40€/reel
High impedance (>= 500Ω
):
0.0088€/pc@4000pc = 35.20€/reel
0.0095€/pc@4000pc = 38.00€/reel
I generally use the LTV-356T
optocoupler (phototransistor output) for general purpose applications. It has a smaller footprint than most DIP-derived SMD optocouplers and a thinner package. Its pin pitch is 2.54mm
whereas the center-distance between the pads is 6.5mm
. It it rated
It is available:
0,12€/pc@1kpc
0,056€/pc@1kpc
The LTV-356T
has the advantage of being available from different sources in large quantities. However, you can get a pin-compatible variant LTV-356T-C
which is only rated for 35V
on the output:
0,0404€/pc@1kpc
At LCSC, you can also get the half-width OR-3H7B-TP-G
with a pin pitch of only 1.27mm
for 0,0424€/pc@1kpc
Typically, 1% thick film resistors are used as general purpose SMD resistors. Most of these are spec’d with a 100ppm/°C temperature coefficient.
From all the “normal” distributors, in my experience LCSC has by far the cheapest resistors – around 3€
per reel (5000pcs) of 0603 resistors. Note, however, that they charge around 35€ of shipping to Germany. So you have to buy a lot of resistors in order to compensate for the expensive shipping. However, you can also order other components on LCSC (they’re usually quite cheap, especially for passives and other standard components).
0.0006€/pc = 3€/reel
0.0006€/pc = 3€/reel
0.0006€/pc = 3€/reel
0.0006€/pc = 3€/reel
0.0006€/pc = 3€/reel
0.0006€/pc = 3€/reel
0.0006€/pc = 3€/reel
0.0006€/pc = 3€/reel
You can find 3D models as 3D-PDF for JST XH connectors on the JST website.
However, in order to obtain STEP or IGES models, you have to look on the jst-mfg.com site.
LCSC is typically the cheapest vendor for buying reels. Note, however, that the shipping fee is rather expensive (around 35€ to Germany), so it will only be worth the saving if you order larger quantities of components.
10nF
0603 50V: 4000pcs of Yageo CC0603KRX7R9BB103 for 5,20€
100nF
0603 50V: 4000pcs of CCTC TCC0603X7R104K500CT for 4,80€
LCSC has a really cheap all-metal push button for only 0.0129€/pc @50pc
It works with the KiCAD 6.0
Button_Switch_SMD:SW_SPST_TL3342
footprint and the KiCAD 6.0
Switch:SW_Push
symbol.
You can find the 3D models on the Taiyo Yuden website.