Pcb Terminal Block KFM736A3-5.0 Alternative To Phoenix 50% Cost Saving

How to install Pcb Terminal Block ?

2. PCB Terminal Block Types

Before installation, we need to identify the terminal block types:

• Screw Terminal Blocks – Require torque-controlled tightening

• Spring-Clamp Terminal Blocks – Tool-free push-in design

• Barrier Terminal Blocks – For high-voltage isolation

• Plug-in Terminal Blocks – For modular PCB connections

• feed through Terminal Blocks 
  

3. Manufacturing & Installation Process

Step 1: PCB Design and  Preparation

• Footprint Design:

• Ensure pad size matches terminal block pitch (such as 2.5mm,3.81mm,7.5mm,7.62mm,10.16mm,5.08mm, 3.5mm)etc

• Includes mounting holes for screw-type blocks (M2.5/M3 /M3.5/M4 screws)

• Material Selection:

• PA66 ,UL94V-0  (standard) or high-Tg materials for high-temperature applications

Step 2: Solder Paste Application

• Stencil Printing:

• Use laser-cut stencils (0.1–0.15mm thickness)

• Apply SAC305 lead-free solder paste

Step 3: Component Placement

• Pick-and-Place Machine:

• Position terminal blocks with ≤0.1mm accuracy

• Ensure polarity alignment (if applicable)

Step 4: Reflow Soldering

• Temperature Profile:

• Preheat: 150–180°C (60–90 sec)

• Reflow Peak: 240–250°C (10–20 sec)

• Cooling Rate: <4°C/sec

• Critical Check:

• Avoid tombstoning (uneven solder melting)

Step 5: Mechanical Mounting (If Required)

• Screw Terminal Blocks:

• Torque: 0.5–0.6 N·m for M3 screws

• Use thread-locking adhesive for vibration resistance

• Snap-On Blocks:

• Align with PCB notches and press firmly

Step 6: Cleaning & Inspection

• Post-Solder Cleaning:

• Remove flux residues with IPA (Isopropyl Alcohol)

• Quality Checks:

• Automated Optical Inspection (AOI): Verifies solder joint integrity

• Pull Test: Ensures >5N retention force

Step 7: Conductor Termination

• Wire Insertion:

• Stranded Wires: Use ferrules (0.5–6mm²)

• Solid Wires: Strip 7–10mm insulation

• Clamping:

• Spring Terminals: Press lever, insert wire, release

• Screw Terminals: Tighten to specified torque

Step 8: Final Testing

• Continuity Test: Verify electrical connectivity

• Hi-Pot Test: 500V AC for 1 min (insulation check)

• Vibration Test: 5–500Hz sweep (IEC 60068-2-6)

Our Manufacturering Show for PCB terminal block

Certificates 

Warehouse

Product Specifications

Product Application

• industrial controls

• lamp lighting

• instrumentation

• consumer electronics telecom equipment

• transportation

Drawing

SYM736A3-5.0.pdf

Related other PCB Terminal blocks

Package Details

• Pcb Terminal Block, Phoenix Terminal Blocks: Inner Box first , then  Inner Carton, The last, Export Carton.

Take strong bags/boxes/cartons for the package, in order to reduce the damage during the shipments. Tape and reel packing, Clamshell packing, Pallet packing, etc are available.

• Export Carton size:43*27*27/36CM

• Port: NINGBO/SHANGHAI

FAQ

Q: The nature of the company (factory/trading)?

A: Integrated industry and trade.

Q: Packing details of the product?

A: Use a special export carton, which is stronger, and the weight of a single piece does not exceed 25KG (by air).

Q: The customs code of the product?

A: 8536901900.

Q: The mass production time of the product?

A: Usually 2 weeks - 4 weeks.

Q: Is the sample provided for free, and the sample delivery date?

A: Small amount samples can be given away for free, and samples can be delivered within 3-5 days.

Q: Does the product support OEM customization?

A: YES.

Q: Do you support MOQ?

A: YES.

Q: Is there a product quotation or electronic sample catalog?

A: Customers need it at any time and can provide it at any time.

Q: Does the company have quality control standards and corresponding management systems?

A: Of course.

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