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Discussion History

Analog Input Board

Assembly

Sampling board digitizing CT and VT secondary signals for the relay processor. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Analog Input Board parts and their functions

3 top-level parts · 125 parts in total · full bill of materials below
Analog Input Board parts diagram: 1 bare PCB, 2 analog front-end IC, 3 SMD passive (R/C/L). 125 parts in 3 top-level items.
Analog Input Board parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Bare PCB 1× Unpopulated printed circuit board: copper traces etched on an FR-4 glass-epoxy laminate that carry current between the components later soldered to it.
2 Analog Front-End IC 4× Analog front-end integrated circuit that conditions, filters, and digitises sensor or cell-voltage signals before the microcontroller reads them.
3 SMD Passive (R/C/L) 120× Surface-mount resistors, capacitors, and inductors, typically in 0402 to 1206 packages, that set voltages, filter noise, and time signals on a circuit board.

3D model

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Build & assembly graph

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Bill of materials for Analog Input Board

3 top-level lines · 3 rows shown · 125 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Bare PCB pcb-bare 1× 1 · part
2 Analog Front-End IC afe-ic 4× 4 · part
3 SMD Passive (R/C/L) smd-passives 120× 120 · part

Where the analog input board is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Numerical Protection Relay

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $1–$200. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳JLCPCB
jlcpcb.com ↗ 		Shenzhen, CN PCB fabrication 100 pcs 2–4 wks
🇨🇳PCBWay
pcbway.com ↗ 		Shenzhen, CN PCB fab & assembly 100 pcs 2–4 wks
🇨🇳Shennan Circuits
scc.com.cn ↗ 		Shenzhen, CN PCB manufacturer 100 pcs 2–4 wks
🇮🇳Shogini Technoarts
shogini.com ↗ 		Mumbai, IN PCB manufacturer 100 pcs 2–4 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 100 pcs 2–4 wks