First, security:
Like the power supply requirements, the instrument test leads and Pogo Pin spring pins must meet strict safety requirements due to direct contact with large voltages, especially in compliance with the international IEC1010 voltage and category requirements, namely CATI, CAT II, CAT III or CATIV. Other requirements of IEC1010 also involve transient testing, dielectric withstand voltage, or testing to verify that the product has sufficient insulation and meets the requirements for current, electrical clearance, exposed metal Pogo Pin spring pins, and impact resistance. Good-quality test needles, together with important personal protective equipment such as gloves and eye protection, form part of the personal protective measures defined in the NFPA70E standard.
Second, robustness and durability:
High-quality test leads and connectors will not suffer performance degradation due to daily friction such as pulling, pressing and puncturing. Both ends of the test line should have well-designed anti-stress sheaths. The test Pogo Pin should be a hardened metal that can withstand repeated connections and can transmit accurate data every time.
Compared with cheap materials, specially manufactured strands of tinned beryllium copper wire can provide flexibility, long-term durability, excellent conductivity and precision. Other factors include the internal welding quality of the Pogo Pin and the connector and the temperature range of the material.
Third, design performance and indicators:
It is very important to test whether the design of the Pogo Pin and the test clip are comfortable. A comfortable, easy-to-grab grip surface helps to hold the needle firmly in your hand, and a strong spring clamp ensures a firm connection. The connection should be simple, and matching parts should be able to slide together effortlessly without stress. The contacts on high-quality connectors should be nickel-plated or gold-plated machined brass connectors, not just cast brass. The use of gold-plated contacts provides accuracy and oxidation resistance, thereby providing a durable, safe and reliable connection.
The design indicators of the test line and Pogo Pin should be consistent with the matching test instrument. If the indicator is smaller than the test instrument, the true value of the instrument will be greatly reduced. For example, the bandwidth of the oscilloscope is 100M, and the bandwidth of the matching oscilloscope needle is only 50M, then the oscilloscope becomes 50M.
Fourth, high-performance applications:
From spring-loaded Pogo Pin pogo pins and fine lightweight needles for electronic circuit testing, to sharp stainless steel Pogo Pin pogo pins and robust needles suitable for industrial use, the design of today's needles takes into account the needs of different applications. For example: Single-point needles are the most common form of needles. Most meters provide a single-point test line, which is quite useful for a wide range of test applications. Sharp Pogo Pin is a better tool for measuring very small contact points on high-density circuit boards. Although they are easily damaged, Pogo Pin pogo pins can usually be re-sharpened because there is no electroplated layer on them.