BOM-DAT/BOM-DAT.md
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## passive
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-- [[diode-dat]] - [[tvs-dat]] - [[transistor-dat]] - [[mosfet-dat]] - [[capacitor-dat]] - [[inductor-dat]]
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+- [[diode-dat]] - [[tvs-dat]] - [[transistor-dat]] - [[mosfet-dat]] - [[capacitor-dat]] - [[inductor-dat]] - [[resistor-dat]] - [[crystal-dat]] - [[ferrite-bead-dat]] - [[fuse-dat]] - [[varistor-dat]]
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-- [[Ferrite-Bead-dat]]
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## Chip
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- [[infrared-dat]] - [[LDO-dat]]
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-## generate footprint descriptions
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-CAP 4.7UF, 0805, 10%, MLCC, 50V, X5R, ROHS
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+- [[footprint-dat]]
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-RES 1K 5%, 0805, THICK FILM, 150V, 1/8W, ROHS
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-Here's a breakdown of the structure:
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-- CAP/RES: Component Type (Capacitor or Resistor)
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-- 4.7UF/1K: Value (4.7 Microfarads or 1 Kiloohm)
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-- 0805: Package Size (0805 is a standard SMD package size)
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-- 10%/5%: Tolerance (10% or 5% variation in value)
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-- MLCC/THICK FILM: Technology or Type (Multi-Layer Ceramic Capacitor or Thick Film Resistor)
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-- 50V/150V: Voltage Rating (50 Volts or 150 Volts)
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-- X5R: Dielectric (Specific to capacitors, defines temperature characteristics)
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-- 1/8W: Power Rating (1/8 Watt, specific to resistors)
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-- ROHS: RoHS Compliant (Restriction of Hazardous Substances)
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-LED SMD VERMELHO, 0805, 2V, 25MA, 624NM, 60MCD, 140°, ROHS
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-- "VERMELHO" is Portuguese for red.
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-- 624nm wavelength corresponds to red light on the visible spectrum.
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-- Other details like 2V, 25mA, and 60mcd just describe electrical and luminous specs.
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-
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-### Electronic Industries Alliance (EIA)
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-
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-
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-EIA 3528-21 Meaning
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-
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-| Section | Description |
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-| ------- | --------------------------------------------------------------------------------------------------------------- |
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-| 3528 | Physical size of the component in hundredths of inches: 3.5 mm x 2.8 mm (i.e., 0.138" x 0.110") |
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-| -21 | Indicates a specific height and pad layout variation within the 3528 size range. Typically means ~2.1 mm height |
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-
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-
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-CRISTAL 12MHz, SMD, 3.2X2.5MM, 18PF, 20PPM, ROHS
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-
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-This corresponds to the standard 3225 SMD package (also known as EIA 3225 or 3.2x2.5mm SMD crystal).
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+## BOM lines
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### IND FILTRO MODO COMUM,100uH,+50/-30%,0.2A,7.5k/10MHz,1812,RO
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| **1812** | Package size: 1812 (0.18" x 0.12" or 4.6 mm x 3.2 mm) SMD footprint |
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| **RO** | RoHS compliant (lead-free and environmentally safe) |
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-## IND FILTRO MODO COMUM, 4A, 700Ω/100MHz, 2824, ROHS
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+### IND FILTRO MODO COMUM, 4A, 700Ω/100MHz, 2824, ROHS
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| Term | Meaning |
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|---------------------------|-------------------------------------------------------------------------|
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-## 0.8-6P-Pitch Type C vertical WTB capping
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+### 0.8-6P-Pitch Type C vertical WTB capping
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| Term | Meaning |
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|------------------|-------------------------------------------------------------------------|
BOM-DAT/Resistor-Dat/resistor-dat.md
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- [[shunt-resistor-dat]] - [[trim-pot-dat]]
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-- [[sample-resistor-dat]]
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-
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- [[Thermistor-dat]]（thermal + resistor)
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-- [[burden-resistor-dat]]
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+- [[burden-resistor-dat]] - [[sample-resistor-dat]]
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+
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+
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+Shunt Resistor:
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+
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+Purpose: To measure current directly flowing through a circuit.
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+
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+Burden Resistor:
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+
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+Purpose: To provide a load for the secondary winding of a current transformer (CT) and to convert the CT's output current into a measurable voltage.
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+
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+
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## E96
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BOM-DAT/Resistor-Dat/sample-resistor-dat/2025-05-29-14-57-40.png
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BOM-DAT/Resistor-Dat/sample-resistor-dat/2025-05-29-14-58-40.png
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BOM-DAT/Resistor-Dat/sample-resistor-dat/2025-05-29-14-59-23.png
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BOM-DAT/Resistor-Dat/sample-resistor-dat/sample-resistor-dat.md
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- 0.003Ω_3W = The 10A version uses a 0.003Ω (3mΩ) sampling resistor, and its current coefficient is 0.333.
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- 0.001Ω_3W = The 20A version uses a 0.001Ω (1mΩ) sampling resistor, and its current coefficient is 1.
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+R0003 = 0.3 mR
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+
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+
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+## Manganese-copper resistor
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+
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+![](2025-05-29-14-57-40.png)
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+
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+## Iron-Chromium-Aluminum resistor
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+
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+## 3W / 5W / 7W
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+
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+![](2025-05-29-14-58-40.png)
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+
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+## Testing precision
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+
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+![](2025-05-29-14-59-23.png)
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## ref
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-- [[resistor-dat]] - [[sample-resistor]] - [[resistor]]
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+- [[resistor-dat]] - [[sample-resistor]] - [[resistor]]
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+
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+-
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BOM-DAT/diode-dat/diode-zenzer-dat/diode-zenzer-dat.md
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+# diode-zenzer-dat
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+
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+A Zener diode is a special type of diode designed to reliably allow current to flow "backwards" (in the reverse-biased direction) when a specific set reverse voltage, known as the Zener voltage, is reached.
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+Its primary application is to provide a stable reference voltage. When reverse-biased at or above its Zener voltage, it maintains a nearly constant voltage across its terminals, even if the current through it varies. This makes it useful for voltage regulation and protection circuits.
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+
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+
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+## BZT52C2V4-BZT52C43 ZENER DIODE
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+FEATURES:
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+- Planar Die onstruction
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+- 500mW Power Dissipationon Ceramic PCB
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+- General Purpose, MediumC urrent
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+- Ideally Suited for Automated Assembly Processes
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+- Available in Lead Free Version
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+
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+
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+## ref
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+
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+- [[footprint-dat]] - [[diode]]
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BOM-DAT/footprint-dat/2025-05-29-15-10-00.png
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BOM-DAT/footprint-dat/footprint-dat.md
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+
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+# footprint-dat.md
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+
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+
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+## generate footprint descriptions
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+
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+CAP 4.7UF, 0805, 10%, MLCC, 50V, X5R, ROHS
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+
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+RES 1K 5%, 0805, THICK FILM, 150V, 1/8W, ROHS
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+
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+Here's a breakdown of the structure:
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+
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+- CAP/RES: Component Type (Capacitor or Resistor)
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+- 4.7UF/1K: Value (4.7 Microfarads or 1 Kiloohm)
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+- 0805: Package Size (0805 is a standard SMD package size)
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+- 10%/5%: Tolerance (10% or 5% variation in value)
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+- MLCC/THICK FILM: Technology or Type (Multi-Layer Ceramic Capacitor or Thick Film Resistor)
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+- 50V/150V: Voltage Rating (50 Volts or 150 Volts)
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+- X5R: Dielectric (Specific to capacitors, defines temperature characteristics)
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+- 1/8W: Power Rating (1/8 Watt, specific to resistors)
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+- ROHS: RoHS Compliant (Restriction of Hazardous Substances)
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+
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+LED SMD VERMELHO, 0805, 2V, 25MA, 624NM, 60MCD, 140°, ROHS
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+
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+- "VERMELHO" is Portuguese for red.
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+- 624nm wavelength corresponds to red light on the visible spectrum.
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+- Other details like 2V, 25mA, and 60mcd just describe electrical and luminous specs.
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+
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+### Electronic Industries Alliance (EIA)
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+
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+
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+EIA 3528-21 Meaning
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+
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+| Section | Description |
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+| ------- | --------------------------------------------------------------------------------------------------------------- |
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+| 3528 | Physical size of the component in hundredths of inches: 3.5 mm x 2.8 mm (i.e., 0.138" x 0.110") |
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+| -21 | Indicates a specific height and pad layout variation within the 3528 size range. Typically means ~2.1 mm height |
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+
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+
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+CRISTAL 12MHz, SMD, 3.2X2.5MM, 18PF, 20PPM, ROHS
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+
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+This corresponds to the standard 3225 SMD package (also known as EIA 3225 or 3.2x2.5mm SMD crystal).
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+
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+## SOD-123
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+SOD-123 is a small SMD package used for diodes, transistors, and other components. It has a footprint of approximately 1.6mm x 0.8mm (0.063" x 0.031") and is commonly used in low-power applications.
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+![](2025-05-29-15-10-00.png)
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+
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+
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+
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+## SOD-323
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+
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+
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+
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+## ref
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+
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+- [[BOM-dat]]
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