Test Leads

Test leads are critical connection tools in the electronic test and measurement field, primarily used to establish reliable electrical connections during circuit board testing, device diagnostics, and laboratory experiments. Their core functions include signal transmission, current conduction, and impedance matching, making them widely used in electronics manufacturing, maintenance, inspection, and R&D verification.

1. What are the Core Features of Test Leads?

1) Structural Design

Main Material: Typically made of gold-plated copper alloy or beryllium copper alloy, ensuring low resistance (<0.1Ω) and high corrosion resistance.

Insulation: Made of silicone or PTFE, with a temperature range of -40°C to 200°C and meeting UL94 V-0 flame retardancy.

Connector Type: Compatible with a variety of adapters, including banana plugs (4mm), alligator clips, IC clips, and PCB test pins.

2) Performance Advantages

High Frequency Response: Supports DC to 500MHz signal transmission, making it suitable for RF circuit testing.

Mechanical Life: ≥10,000 insertion and removal cycles, with a stable contact pressure range of 50-200g.

3) Safety Certifications

CE, RoHS, and IEC 61010-1 certified. Select models offer CAT III 600V high-voltage protection.

2. What are the Typical Applications of Test Leads?

Production Testing: PCB functional testing and signal acquisition point connections for ICT online testing.

Laboratory Measurements: Temporary wiring between oscilloscopes, multimeters, and the device under test.

Industrial Maintenance: Troubleshooting and calibration of inverters and power modules.

3. Selection Recommendations for Test Leads

Choose based on test requirements:

For high-frequency circuits, shielded coaxial test leads are preferred.

For high-current applications, verify the conductor cross-sectional area (e.g., 16AWG or larger).

For precision measurements, a four-wire Kelvin probe is recommended to eliminate contact resistance errors.