Test Points

Part Number	Description / PDF	Quantity
S1751-46R Harwin	PC TEST POINT NATURAL	410546
S2751-46R Harwin	PC TEST POINT NATURAL	0
S2761-46R Harwin	PC TEST POINT NATURAL	2368
S1751-46 Harwin	PC TEST POINT NATURAL	19555
M1352-99 Harwin	PC TEST POINT JACK RED	0
S1751-06 Harwin	PC TEST POINT NATURAL	0
S1751-06R Harwin	PC TEST POINT NATURAL	0
M1352-98 Harwin	PC TEST POINT JACK BLACK	0

Test Points

1. Overview

Test points are standardized locations on electronic devices or systems designated for signal access, measurement, and diagnostic purposes. They serve as critical interfaces for validating performance, troubleshooting faults, and ensuring compliance with technical specifications. In modern electronics, test points enable efficient development, quality assurance, and maintenance across industries.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
PCB Test Points	Direct contact pads on printed circuit boards	Prototype validation, production line testing
High-Voltage Probes	Insulated contacts for >1kV measurements	Power supply testing, industrial equipment diagnostics
RF Test Points	Impedance-matched interfaces for high-frequency signals	Wireless communication modules, antenna testing
Automotive Diagnostic Ports	Standardized OBD-II connectors	Vehicle ECU diagnostics, emission testing

3. Structure and Composition

Typical test points consist of: - Conductive contact materials (e.g., gold-plated copper, phosphor bronze) - Insulating housing with environmental protection (IP67-rated plastics) - Mechanical mounting features (through-hole/surface-mount) - Interface standards (BNC, SMA, USB-C, or proprietary connectors) - Optional protective covers with EMI shielding

4. Key Technical Specifications

Parameter	Significance
Max Current Rating	Determines power handling capability
Voltage Range	Defines operational safety limits
Frequency Bandwidth	Specifies usable range for signal integrity
Contact Resistance	Impacts measurement accuracy (typically <10m )
Environmental Resistance	Operating temperature (-40 C to +125 C), humidity tolerance

5. Application Fields

Electronics Manufacturing: Circuit validation using oscilloscopes
Automotive: ECU communication via OBD-II ports
Medical Devices: Patient safety testing (IEC 60601 compliance)
Telecommunications: 5G base station signal monitoring
Aerospace: Avionics system diagnostics

6. Leading Manufacturers and Products

Manufacturer	Representative Product
Keysight Technologies	N2855A High-Z RF Probe
Tektronix	P6139B 500MHz Oscilloscope Probe
Fluke Corporation	TPIL1 Test Point Interface Lead Set
Amphenol	RF Test Port 6001-0001-0

7. Selection Guidelines

Key considerations include: - Match impedance and bandwidth to measurement equipment - Verify compliance with industry standards (e.g., IEEE, ISO 14001) - Environmental durability for operating conditions - Compatibility with automated test systems - Cost-benefit analysis of reusable vs. disposable probes

Example: Automotive manufacturers select test points with ISO 7637-2 compliance for reliable ECU testing in extreme temperature cycles.

8. Industry Trends

Emerging trends include: - Miniaturization for high-density PCBs (0.4mm pitch test points) - Integration with wireless test interfaces (Bluetooth/WiFi 6E) - Increased adoption of active probes for >10Gbps signal analysis - Smart test points with embedded sensors for real-time monitoring - Eco-friendly materials meeting RoHS/REACH regulations