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String Inverter

Assembly

Transformerless 10 kW three-phase inverter with two MPP trackers, 98% peak efficiency, mounted on the shaded side of a column. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

String Inverter parts and their functions

7 top-level parts · 17 parts in total · full bill of materials below
String Inverter parts diagram: 1 IGBT power module, 2 power MOSFET, 3 bare PCB, 4 microcontroller, 5 SMD passive (R/C/L), 6 connector, 7 relay. 17 parts in 7 top-level items.
String Inverter parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 IGBT Power Module 1× Three-phase bridge
2 Power MOSFET 4× Boost stage
3 Bare PCB 2× Unpopulated printed circuit board: copper traces etched on an FR-4 glass-epoxy laminate that carry current between the components later soldered to it.
4 Microcontroller 1× Control DSP
5 SMD Passive (R/C/L) 1× Surface-mount resistors, capacitors, and inductors, typically in 0402 to 1206 packages, that set voltages, filter noise, and time signals on a circuit board.
6 Connector 6× MC4 + AC terminals
7 Relay 2× Grid isolation

3D model

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Build & assembly graph

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Bill of materials for String Inverter

7 top-level lines · 7 rows shown · 17 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 IGBT Power Module igbt-module 1× 1 · part
2 Power MOSFET mosfet 4× 4 · part
3 Bare PCB pcb-bare 2× 2 · part
4 Microcontroller mcu 1× 1 · part
5 SMD Passive (R/C/L) smd-passives 1× 1 · part
6 Connector connector 6× 6 · part
7 Relay relay 2× 2 · part

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Used in 1 assembly

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
scc.com.cn ↗ Shenzhen, CN PCB manufacturer 100 pcs 2–4 wks
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