What We Deliver
Our schematic design service covers the complete electronic design process — from initial requirements analysis and component selection through to a fully verified, ERC-clean schematic package. We use industry-standard EDA tools including Altium Designer, KiCad, OrCAD and Eagle, ensuring your files are immediately usable by any PCB layout engineer or manufacturer.
Every schematic we produce includes a complete BOM with manufacturer part numbers, reference designators, and recommended alternatives for supply chain resilience. Power architecture, signal integrity, and EMC considerations are built into the design from day one — not added as an afterthought.
Application Areas
Typical Turnaround
Schematic Design for a Multi-Protocol Industrial Gateway
A Dutch industrial automation company needing a schematic design for a DIN-rail mounted industrial IoT gateway — integrating Modbus RTU, PROFIBUS, EtherNet/IP, and LTE-M connectivity in a single device for retrofitting legacy factory equipment.
The Problem
The customer's in-house electrical engineer had defined the system architecture and selected key ICs but lacked bandwidth to complete the schematic capture for a 4-protocol device. The schematic required careful power domain isolation between the industrial protocol interfaces (24V logic) and the main processor domain (3.3V), plus TVS diode protection on all industrial-facing I/O.
Key Challenges
- 4 industrial protocols: Modbus RTU (RS-485), PROFIBUS DP, EtherNet/IP, LTE-M
- 24V industrial logic level shifting to 3.3V — galvanic isolation required on RS-485 and PROFIBUS
- TVS diode protection on all 12 industrial I/O pins — IEC 61000-4-2 ESD compliance
- LTE-M antenna matching network — 50Ω impedance matching to SIM7080G module
- DIN-rail form factor: 90 × 60mm PCB — tight component placement constraints
Our Solution
Our schematic team completed the full schematic capture in 12 working days. We used ISO7241 quad-channel digital isolators for the RS-485 and PROFIBUS interfaces, providing 2500V RMS galvanic isolation. The EtherNet/IP interface uses a Microchip LAN9252 controller with integrated magnetics. The LTE-M antenna matching network was designed using the SIM7080G reference design with component values verified against our RF simulation. All 12 industrial I/O pins are protected with PRTR5V0U2X TVS arrays. The schematic was delivered with a full BOM, net list, and a 4-page design review document explaining every protection and isolation decision.
Results & Outcomes
"The schematic Kingdta delivered was production-ready. The design review document they included explained every isolation and protection decision with the IEC standard reference — which was exactly what we needed for our CE technical file. We went from schematic to certified product in 4 months."
Lead Electrical Engineer, Industrial Automation Company — Eindhoven, Netherlands