As the core part of electronic products, the role and importance of printed circuit boards are self-evident. In order to ensure the long-term normal use of printed circuit boards, the secret behind the soaring prices of printed circuit board assembly is hidden.
Industrial products or semi-finished products require strict quality testing and relevant experimental certification in order to ensure their competitiveness and security.
The visual aspects mainly include which aspects have testing and certification. If there are some visual inspection and certification, it indicates that there is a quality issue with the product.
The internal testing standards of the factory are mainly based on this specification, but further adjustments need to be made in terms of testing items and product materials, which will inevitably ensure the quality of the products.
In terms of electrical discharge, it mainly refers to the anti-static discharge test conducted on two local products that come into contact with charged particles generated by electrostatic discharge, such as human charged particles, equipment or systems for high-voltage electrical breakdown.
The severity of electrical discharge can sometimes have a serious impact on the human body, equipment, and systems, and in severe cases, it can cause harmful discharge to adjacent communication systems.
● Current transformer: The insulation resistance between AC transformer and DC transformer B, D, E, and the ground should not be less than 1 megaohm, otherwise it may cause electric shock or even fire disaster to humans.
● Output power: Together with the power supply and input/output lines. The DC output transformer is consistent with the requirements of the analog circuit.
● Frequency transformer: When the primary winding of the transformer is energized and working, the magnetic flux generated by the coil flows through the iron core, resulting in different magnetic conductivity and corresponding changes in resistance value. Therefore, the DC resistance of the coil also changes accordingly.
TDK company provides customers with CARLO GAVAZZA adhesion tester. Suitable for measuring the DC resistance of transformer windings with various AC and DC pulses.
Electrical function: insulation resistance testing port, insulation resistance testing port, allowing external AC voltage, and measuring values can be set within a 2m range.
● AC/DC001A60S: 100A、AC/DC001A:5A、AC/DC001A:10A、AC001A:5A、AC/DC001A:10A、AC/DC001A:15A、AC/DC001A:20A。 AC/DC001A。 DC 001A、AC/DC001A:10A、AC/DC001A:150A、AC/DC001A:1A、DC 001A:500A。 AC/DC001A。 DC 001A、AC/DC 100V、AC 200V、AC 5A:250A、AC 30V、AC 3A。 DC 5A、AC 10A、AC 60V、AC 3A。 DC 600V、AC 20V、DC 3A。 PQ 800V, MDF50 5V, DC 500V, current limiting: DC 600V, U3 8A, U4 15A, U5 3A: NPT1000V, U5 128V, NPT1000V
Regarding product certification: ROHS environmental certification, GJB9001C601, REACH award level product certification, and various advanced CCC, PLCC, IOT, SMC, IM, Ethernet, BMS and other product certifications.
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