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Common Questions and Answers About Test Probes

Common Questions and Answers About Test Probes

13

2021

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05

What are the advantages of a double-ended probe?

Double-ended probes are ideal for products that require quick, separate contact at both ends of the spring pin. Since both ends can mate with the PCB and the mating component, there’s no need to solder one end, offering flexible connection and making them well-suited for housing‑type connectors that don’t require soldering—such as watch housings or the audio enclosures of mobile phones. During assembly, different springs must be installed into the housing in two separate steps, which increases the number of assembly operations. In high‑volume production, even a single additional spring‑installation step can reduce overall throughput. So, what are the advantages of double‑ended probes? Let’s take a look!

20

2021

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05

Test Probe: How Much Do You Know About Test Probes?

Test probes, also known in the industry as “probes,” are used for PCB testing and are categorized into spring probes (specialized probes) and universal probes. Spring probes require the fabrication of a custom test fixture tailored to the wiring layout of the specific PCB being tested; typically, a single fixture can only accommodate one type of PCB. In contrast, universal probes only need to provide sufficient contact points, which is why many manufacturers now prefer them. Depending on their application, spring probes are further divided into PCB probes, ICT probes, and BGA probes: PCB probes are primarily used for PCB testing; ICT probes are mainly employed for in-circuit testing after component insertion; and BGA probes are specifically designed for BGA‑related applications.

09

2021

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07

What are the advantages of a rotary probe with a dual‑head design?

The rotary probe with a double-ended tip is a precision electronic hardware component, primarily composed of three parts: a spring, a probe tube, and a needle tip. It is also known as a “spring pin.” As the name suggests, a spring pin is indeed related to springs, but it is not literally made of spring material—this is a common misconception. Instead, it incorporates an internal spring mechanism, which is quite distinct from a conventional spring. This is a highly precise electronic component with powerful functionality.

11

2021

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08

Huarong Probe Analysis: Why Do Probes Require an Electroplated Coating?

A probe is a short single-stranded DNA or RNA fragment—typically 20 to 500 base pairs in length—used to detect its complementary nucleic acid sequence. Double-stranded DNA is heated to denature it into single strands, after which the strands are labeled with a radioactive isotope (commonly phosphorus‑32), a fluorescent dye, or an enzyme such as horseradish peroxidase, thereby generating the probe.

23

2021

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08

What are the advantages of a rotating probe?

The rotary probe, a dual‑ended probe, is a precision electronic hardware component consisting primarily of three parts: a spring, a probe tube, and a probe tip. It is also known as a “spring pin.” While the name suggests it involves a spring, it is not literally a pin made of spring material—this is a common misconception. In fact, it incorporates an internal spring mechanism, which is quite distinct from a conventional spring. As a highly precise electronic component with powerful functionality, let’s now explore the key advantages of the rotary probe.

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2021

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09

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