Hirose Electric (Hirose Denki) is a well-known Japanese connector manufacturer with a long history and leading technology, particularly skilled in the design of miniaturized and high-reliability connectors. Its U.FL, W.FL series high-frequency connectors, HR series push-pull circular connectors, and other products are widely used in fields such as communication, consumer electronics, instrument equipment, and automotive electronics. These products usually offer high-quality gold or tin plating contact solutions to meet the contact stability and cost requirements of different applications.
First, key points for the acceptance standards of domestically produced replacement connectorsTo ensure that domestic substitute connector products can meet the critical application requirements, we recommend formulating customer acceptance criteria from the following aspects:
Material and coating quality inspection
●Verify coating type: gold vs tin should be consistent with sample specifications and confirmed by metal composition test for coating thickness and uniformity.
●Common projects include microscopic observation, coating thickness testing, and adhesive strength detection.
Electrical performance evaluation
● Contact Resistance: Measure the initial contact resistance and the change after multiple insertions and withdrawals; for low current signal transmission scenarios, special attention should be paid to resistance fluctuations.
Insulation resistance and voltage withstand test: confirm no short circuit or leakage risk.
Mechanical property test
● Insertion and extraction life: Must reach the specified number of times (such as 500-1000 times) without contact anomalies after insertion and extraction;
● Vibration and Environmental Adaptability: Test the contact stability of terminals under vibration and high and low temperature cycles.
4. Environmental Reliability Test
Consider the oxidation and corrosion resistance under conditions such as humidity, high temperature, and salt fog, and simulate long-term usage scenarios.
● Compare the antioxidant ability difference between gold plated and tin plated versions, and conduct an adaptability assessment.
Appearance and Packaging
The appearance should be free of obvious defects, with even plating and tidy interfaces.
●Packaging and labeling must be clear, with traceable batch information for easy later tracking and management.
Two, implementation experience suggestions1. Refer to the Hirose original factory standard as the benchmark
Based on the product specifications of Hirose, such as push-pull force, coating thickness, electrical parameters, etc., as a comparison basis.
Establish grading criteria and implement a more flexible acceptance system.
The acceptance items can be divided into "key items" (such as electrical contact performance, insertion and extraction life) and "auxiliary items" (such as appearance, packaging), with the focus on controlling the key items more stably.
Batch verification before mass production
Before each large-scale procurement, carry out sampling verification to ensure consistency and stability of the production process.
Establish a feedback mechanism for continuous optimization.
Continuously adjust acceptance criteria through project feedback and collaborate with domestic suppliers to improve production processes.
When formulating acceptance standards for domestic connectors, it is necessary to consider multiple dimensions such as material, electrical, mechanical, environmental, consistency across multiple batches, and traceability management. Taking Hirose's original products as a reference, establishing a scientific, practical, and executable acceptance process can not only ensure the quality of connectors but also enhance the trust and application success rate of domestic substitute products in customer projects.
If you are interested in the domestic substitute products of Hirose brand connectors, or have related procurement needs, or have production or sales channels for such products, and wish to engage in in-depth cooperation or communication, please contact us through the following methods:
Manager Zhang (18665383950, WeChat the same number)Looking forward to working together with more industry partners.
