FAKRA Cable Assembly Process

　　1. Incoming Material Inspection (IQC)

　　Inspect FAKRA housings, inner pins, outer terminals

　　Verify coaxial cable diameter, impedance (50 Ω), and material specifications

　　Randomly test attenuation, shielding density, and other RF parameters

　　2. Cable Cutting

　　Using an automatic coaxial cutting & stripping machine to perform:

　　Precise length cutting

　　Multilayer stripping: outer jacket, braided shield, dielectric, and center conductor

　　Maintain stripping tolerance at ±0.2 mm

　　3. Shield Preparation

　　Depending on the design:

　　Fold back the braided shield

　　Twist or trim the shield for clean termination

　　Ensure proper length for smooth terminal crimping

　　4. Inner Conductor Crimping

　　With dedicated FAKRA crimp tooling:

　　Crimp the center pin

　　Control crimp height and width

　　Perform pullforce testing (typically ≥20 N)

　　5. Outer Ferrule Crimping

　　Position the outer metal ferrule

　　Use hexcrimp tooling for the RF shield connection

　　Ensure automotivegrade tensile strength and antipull performance

　　6. Soldering (If Required)

　　Some FAKRA structures require:

　　Center pin soldering

　　Shield reinforcement soldering

　　Use leadfree solder; joints must be smooth and fully wetted

　　7. FAKRA Housing Assembly

　　Insert the terminated cable into the FAKRA plastic housing

　　Ensure the lock clicks into place

　　Keyed design prevents incorrect mating

　　8. PullForce Testing

　　Individually test:

　　Center contact pull strength

　　Outer shield pull strength

　　Must meet process specifications

　　9. Visual Inspection / AOI (Optional)

　　Verify:

　　Proper assembly and full seating

　　Correct color coding and key code

　　No exposed conductors or abnormal stripping length

　　10. Electrical Continuity Test

　　Performed with dedicated FAKRA fixtures:

　　Center conductor → center conductor continuity

　　Shield → shield continuity

　　Detect opens, shorts, or impedance abnormalities

　　11. RF Performance Test (Return Loss / VSWR)

　　Critical for FAKRA products:

　　Measure return loss

　　Measure VSWR

　　Ensure RF performance for GPS, 4G/5G, radar, and other applications

　　12. Final Assembly & Labeling

　　Apply heatshrink tubing, labels, and protective sleeves

　　Bundle and pack according to customer requirements

　　13. Outgoing Quality Inspection (OQC)

　　Inspect appearance, dimensions, and RF performance

　　Maintain traceability with batch records