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U1
recommend a replacement for L1.
2y
I see that L1 is an inductor in your design with an inductance of 2.2uH and packaged in SMD_1206_3216Metric. I'm not able to recommend a specific make and part number, but a good replacement would need to match or exceed these key parameters:
- Inductance: 2.2 µH
- Package/Case: SMD_1206_3216Metric
- Type: Surface Mount
It will also be important to consider other parameters to make sure it fits in with your circuit's requirements, such as:
- Current rating: You need to make sure it can handle the electrical current in your circuit.
- Resistance (DCR): Lower values will generally result in better efficiency.
- Frequency range: It should work within your circuit's operating frequency.
Please note that different manufacturers might have a different naming convention for this package size, some might name it as SMD_1206, others as Metric_3216.
I would recommend checking major electronic component suppliers like Digikey, Mouser or RS Components to check for inductors that match these dimensions and parameters.
2y
The inductor L1 is part of your circuit with an inductance of 2.2 µH. Swapping it with a 1 µH or 4.5 µH inductor will change the inductance value, and therefore the operation of your circuit.
If L1 is a part of a power supply circuit, filter circuit, or an oscillator, its value is critical for the performance and stability of these designs. For filters, the inductor value along with the capacitor values determine the cutoff frequencies. In the case of power supplies like Buck or Boost converters, the value of the inductor can affect the ripple current, efficiency, and stability.
Therefore, using a 1 µH or 4.5 µH inductor instead of 2.2 µH could significantly change your circuit's characteristics. You should perform a circuit analysis or simulation first to understand the effect of these changes.
I would recommend sticking with the 2.2µH inductor value unless your revised analysis shows that a different inductor value is acceptable for your circuit performance and stability. If you need to use a 1 µH or 4.5 µH inductor due to availability, make sure to verify its suitability in your particular design.
2y
9
Would this connection worck where the resistor is after the led not before
2y
Yes, placing the resistor after the LED instead of before it can work in a circuit. The purpose of the resistor in an LED circuit, regardless of being placed before or after the LED, is to limit the current through the LED to prevent it from burning out due to excessive current. The direction of current flow through the LED and the resistor doesn't change the fact that the resistor limits the current.
Here's a typical LED circuit connection for context, assuming we're dealing with designators from your project:
- If we're considering the LED designated as
IO1-LED1and a resistor, sayR1(assuming R1 is the resistor in question), whetherR1is connected to the Anode (A) or Cathode (K) side ofIO1-LED1does not change the fundamental operation of limiting current to the LED. The important part is that they are in series.
For
IO1-LED1 where:IO1-LED1:Agoes to the +V (could be3V3for a 3.3V LED circuit).IO1-LED1:Kconnects toR1:P1orR1:P2(Whichever pin to accommodate the series connection logic).
Then for resistor placement after the LED:
- Connect
IO1-LED1:KtoR1:P1(assumingP1is the input side of the resistor). - Connect
R1:P2to GND.
This assumes:
- The supply voltage (
3V3) is appropriate for your LED and resistor combination. The resistor value should be chosen based on the LED's forward voltage and desired forward current. 3V3represents a +3.3V power net in your project, which is typical for logic circuits but should be confirmed as suitable for your LED.
Adjust the resistor value as necessary to limit the current according to the LED's specifications. The LED's forward voltage ((V_f)) and desired current ((I_f)) help in calculating the resistor value using Ohm's law ((R = \frac{V_{supply} - V_f}{I_f})). Always double-check the LED and resistor specifications to ensure proper operation and safety.
2y
14
2 - DC Motor 2
IO48
IO14
PWR-Vmotor
IO11
IO0
IO13
C3
Capacitance
0.1uF
IO47
IO18
IO9
IO15
IO17
IO2
IO21
UART_TXD0
IO45
USB_D+
TCK
IO8
TMS
IO35
IO16
C5
Capacitance
10uF
IO3
2-PWR-gnd
2-PWR-Vmotor
IO37
USB_D-
2 - DC Motor 1
TDI
DC Motor
IO10
IO36
DC Motor 1
IO38
UART_RXD0
C1
Capacitance
0.1uF
PWR- Gnd
IO1
IO12
IO46
C2
Capacitance
10uF
TDO
Motor 1
UART_TXD0
IO48
IO11
H3
ESP_EN
MD2
End of Life
TDO
Motor 2
IO37
IO0
TCK
IO13
IO9
IO7
H1
UART_RXD0
IO8
H4
MD1
End of Life
IO46
IO10
IO3
IO38
IO16
IO2
R8
Resistance
1KΩ
IO17
TDI
IO4
TMS
H2
IO12
IO36
IO14
USB_D-
IO47
IO35
IO21
IO5
IO45
IO1
USB_D+
IO18
R1
Resistance
100kΩ
J7
R10
Resistance
10kΩ
C7
Capacitance
0.1uF
+5V
J6
L1
Inductance
2.2uH
C8
Capacitance
22uF
BZ1
3V3
M1
C9
Capacitance
0.1uF
IC1
M2
R12
Resistance
0.001 Ω
R13
Resistance
1kΩ
C10
Capacitance
22uF
U2
Reviews
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #powerjharwinbarrozo11.4M
- A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibraryjharwinbarrozo15.8k
- An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.Terminal
- 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlinkjharwinbarrozo1.2M
- 10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcanjharwinbarrozo1.2M
- Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlinkjharwinbarrozo1.1M
Real CDR working
Properties
Pricing & Availability
Distributor | Qty 1 |
|---|---|
Digi-Key | $14.62–$16.93 |
LCSC | $30.16–$30.19 |
Mouser | $17.99 |
Controls
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