Automated Test Fixture PCBA

The board is equipped with multiple DUT test channels, integrated with STM32 main control chip, isolated power modules, high-power MOSFETs and energy storage electrolytic capacitors. It incorporates circuits for voltage acquisition, current sampling, on-off control and communication interfaces. Featuring independent multi-channel power output and signal monitoring, a single board supports synchronous testing of multiple devices under test. It can collect VBAT and VBUS voltage & current signals in real time to meet requirements of automated burn-in and performance testing for power products.

Juehui Weiye Circuit boasts mature one-stop processing capacity for large-size multi-channel fixture PCBA. It supports the whole customization workflow including PCB fabrication, SMT mounting, DIP through-hole assembly and functional testing. We accept custom orders for various industrial test fixtures and automation equipment PCBA.

Basic Parameters

- Product Name: Multi-channel Power Supply Test & Control Board PCBA (8B01-POWER_CTRL_R_V6.0)

- Finished Size: 213mm × 180mm

- PCB Material: FR-4 TG150

- PCB Layers: 4-layer PCB

- Board Thickness: 1.6mm

- Surface Finish: ENIG (Electroless Nickel Immersion Gold)

- Minimum Line Width / Line Spacing: 6mil/6mil

- Minimum Aperture: 0.25mm

- Component Categories: 8 categories (Main Control MCU, DC-DC Isolated Power Module, Power Inductor, Electrolytic Capacitor, Chip Resistor, Chip Capacitor, Diode, MOSFET, Connector Terminal)

- Total Component Count: 680 points

- Minimum Component Package: 0402

- Minimum Lead Pitch: 0.5mm (QFP Package)

- Channel Specification: 14 independent DUT test channels

- Communication Interface: Serial port communication, supports uploading voltage and current data to upper computer

Manufacturing Process

1. PCB Fabrication: 4-layer FR4 ENIG circuit board with inner layer impedance control, large-area copper pouring for heat dissipation and separate power/ground plane design to enhance stability under high-power operating conditions.

2. SMT Mounting: Automatic high-speed mounter for component placement, compatible with 0402 small packages, QFP chips and high-power inductors. Lead-free solder paste is adopted with optimized reflow temperature profile to avoid cold solder joints and tombstoning of high-power components.

3. DIP Through-hole Assembly: Electrolytic capacitors and high-current connectors are assembled by manual & automatic insertion, followed by wave soldering. Manual rework soldering for reinforcement after insertion; extra tin coating on high-current pins.

4. Soldering Method: Hybrid soldering of SMT reflow soldering + DIP wave soldering, RoHS-compliant lead-free process.

5. Post-process: Cleaning (remove flux residue) → AOI optical inspection for appearance → Continuity test → Power-on functional test → Final inspection & packaging

6. Processing Capability: One-stop contract manufacturing including BOM sourcing, PCB fabrication, SMT & through-hole assembly, PCBA functional testing. Custom revision support, covering low-volume prototyping to mass production delivery.

Application Fields

This multi-channel power supply test fixture PCBA is mainly used in automated testing and burn-in test systems for power products, widely applied in:

- Automated test fixtures for consumer electronic power adapters, power banks and DC power modules

- Production line test equipment for small new-energy power products

- Multi-channel power signal acquisition and power reliability burn-in test benches in laboratories

- Industrial automatic test equipment and BMS sample test fixtures

- Multi-channel power supply and electrical performance inspection equipment for semiconductor components and board DUTs

Product Advantages

1. Multi-channel integrated design: 14 independent DUT channels on one single board with channel isolation without mutual interference, enabling synchronous testing of multiple DUTs and greatly improving production line test efficiency.

2. Stable high-power output: Equipped with multiple power loops and energy storage capacitors. Heavy-current circuits adopt wide copper traces with excellent heat dissipation, resisting overheating during long-duration burn-in tests.

3. High precision of signal acquisition: Built-in sampling circuits to collect voltage and current data in real time, supporting upper computer communication and automatic test data recording.

4. One-stop PCBA customization: Juehui Weiye Circuit undertakes full-process customization of similar fixture board PCBA. Customers can provide schematic / PCB files. We also support BOM kitting, alternative component selection, low-volume sampling and mass production.

Juehui Weiye Circuit specializes in PCB production and one-stop PCBA custom processing. We excel in manufacturing industrial fixture boards, automation equipment boards, power control boards and PCBA for test instruments. Customization available with customer drawings or samples. Full services include PCB fabrication, component procurement, SMT mounting, through-hole soldering and PCBA functional testing. Equipment manufacturers, automation companies and test equipment enterprises are welcome to inquire about sampling and discuss PCBA OEM cooperation.

Ordering Instructions

Please provide PCB Gerber files, BOM list, centroid coordinate files and functional test specifications. We will offer quotation and production evaluation for the whole workflow including PCB manufacturing, SMT mounting and through-hole assembly. Board material, layer count, surface finish and component sourcing plan can be adjusted on demand.

📞 Tel: +86 189-2464-6170

📧 Email: szjhpcb@vip.126.com

🌐 Website: https://www.szjhpcba.com