Descriptions of High Frequency Pogo Pins
High frequency pogo pins are spring loaded pins optimized for high-frequency testing within 10GHz. The impedance matching accuracy is 50Ω±3Ω, VSWR is ≤2.0. IL is ≤ 1.2dB @ 10GHz, and the reflection coefficient is ≤-20dB. High-end customized high frequency pogo pins can have an IL as low as 0.5dB at 10GHz. A RL is greater than 15dB, and a stable contact resistance of 10-15mΩ.
Johoty uses beryllium copper or phosphor bronze and gold-plated 1.25-5μm to suppress parasitic effects by coaxial grounding or short path <2.00mm. We verify S parameters of each batch of high frequency pogo pins by vector network analyzer with our customer. The data is based on prototypes and mass production to ensure the authenticity and traceability of RF performance.
High frequency pogo pins are suitable for testing 5G FR1, vehicle Ethernet, radar modules, and high-speed chips. The plug-in life is 50,000 to 500,000 times, and contact resistance fluctuates by ≤10%.
Specifications of High Frequency Pogo Pins
| Parameters | Measurement | Value |
|---|---|---|
| Impedance Matching | 50Ω±5% | The signal reflection is extremely low, and no additional matching circuit is required. Reduce R&D debugging time. |
| Bandwidth | ≤10GHz（custom） | Compatible with 5G, satellite communication, and high-speed digital signals. No need to frequently change suppliers for different projects. |
| Insertion Loss | <1.2dB @10GHz | Test data is closer to the true performance of the chip. Reduce error rate,improve the judgment accuracy of good high frequency pogo pins. |
| Working Life | >50,000 times | Reduce the frequency of downtime in automated testing production lines. Reduce annual spare parts procurement costs. |
| Contact Resistance | Initial <5mΩ,final life cycle <50 mΩ | Four-line Kelvin test without pressure. Suitable for high current/low power precision measurement. |
| Spring Force | 15gf – 200gf(custom) | Don’t damage the tin-plated or gold-plated PCB pads. Reduce the scrap rate of finished PCB products. |
| Operating Temperature | -55℃ to +125℃ | Parameters don’t drift under thermal shock environment. Suitable for automotive electronics and industrial-level certification. |
| Salt Spray | ≥48 hours | Long-term exposure doesn’t oxidize. Inventory management is easier and has a longer shelf life. |
| Proofing Cycle | 2 weeks after finalizing the drawings | Quickly verify PCB layout. Seize the market window period. |
| Full inspection report | 100% frequency test and life cycle sampling | Incoming materials are exempt from inspection and can be directly loaded onto the machine. No need to build expensive incoming material testing equipment. |
Categories of High Frequency Pogo Pins
Customize the size and specifications: Pin length, pin diameter, pin pitch, and needle shape.
Finishing and coating: Gold plating, nickel plating, palladium plating, platinum plating, rhodium ruthenium plating, special coatings, and composite coatings.
Customization of springs: Spring stiffness, spring type, dust-proof design.
Termination methods include soldering terminals, plug-in terminals, and threaded terminals.
Customization of appearance and size: Shape customization, end design, and miniaturization design.
Material selection: Conductive materials (gold, silver, nickel alloys, copper alloys), spring materials (beryllium copper alloys, SUS631, Inconel), and Barrel materials.
Contact method customization: Single-point or multi-point contact, and resistance to high frequency contact.
Customized installation methods: Surface mount, through-hole, crimping, or threaded installation.
Anti-interference customization: Low resistance design, EMI protection design.
Special customization for high frequency pogo pins: Including high temperature resistance design, high pressure design, shock resistance design, and anti-corrosion design.
Small tolerance and lifespan of high frequency pogo pins
High frequency signals are most afraid of poor contact, so it is crucial to ensure stable and low contact resistance. Johoty ensures the reliability of high frequency pogo pins through strict testing standards.
Dynamic contact resistance <20mΩ: High frequency pogo pins have extremely
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Mechanical lifespan of 50,000 insertions: After rigorous testing, the mechanical lifespan of high frequency pogo pins exceeds 50,000 connections. Capable of adapting to frequent connections without affecting its performance. Under high-speed data transmission, Johoty high frequency pogo pins can also maintain long-term stable operation.
Test report: Johoty provides detailed test reports, and by displaying chart and data, you can clearly see the test standards and results.
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Compliance materials of High Frequency Pogo Pins
High frequency performance and material stability:
Dielectric constant and impedance matching: Johoty engineering plastics and insulation materials follow UL 94 V-0 strictly. They have stable dielectric constant in a wide frequency band and support viewing material reports.
Coating uniformity: Johoty gold plating thickness is strictly designed according to high frequency transmission for X-ray data. They can eliminate signal integrity loss caused by microporous corrosion.
Material composition:
Substrate: Johoty springs, bars, and plungers are made of RoHS 2.0 gold-plated beryllium copper, brass, or custom alloys. We provide material declaration documents based on IEC to ensure material traceability for each batch of high frequency pogo pins.
Hazardous substance process control: Johoty promises our high frequency pogo pins don’t add intentionally lead, mercury, cadmium, hexavalent chromium, or specific brominated flame retardants. If there are any conflict issues caused by materials, Johoty can provide a complete REACH report.
Supply chain traceability and batch consistency:
Batch number and material: Johoty always prints batch number on high frequency pogo pins packaging to trace back our high frequency pogo pins. You can easily know original supplier procurement and incoming inspection for the gold wire, alloy bars, etc.
Change notice: If there is a material change due to upstream supply chain, Johoty will notify you in writing 6 months in advance. We will provide comparative test data on electrical and mechanical performance of high frequency pogo pins.
Lead Time and delivery of High Frequency Pogo Pins
Engineering sampling:
7-10 day emergency sampling: For inventory standard products or minor design adjustments, Johoty can provide a VIP channel for sample delivery within one week.
Complete customized high frequency pogo pins within 2 weeks based on the drawings you provided. You don’t need to bear high molding costs or NRE costs.
Free design DFM: Provide professional manufacturability design analysis within 8 hours after receiving an inquiry. Ensure that your design is perfect and error free during the first sampling.
Mass production delivery:
Standard product shipping: If standard high frequency pogo pins are in stock, Johoty supports same day or next day shipping.
Rapid production: After sample confirmation, mass production and delivery will begin within 14 working days. Instead of the typical 4-6 weeks in the industry.
Flexible insertion: For client’s urgent projects, Johoty reserves 20% production capacity for expedited orders, which can further shorten delivery speed by 30%.
Supply chain security:
Fully automated production lines: Johoty has a fully automated assembly and inspection with a cycle time of <0.5s per pogo pin. Ensure that the impedance consistency of high frequency pogo pins still passes 100% testing under high-speed delivery.
Safe and fast logistics: For global market, Johoty has deep cooperation with DHL/FedEx/UPS, providing direct delivery to customers within 2-3 days at the fastest.
Transparent visualization of delivery time: After launching your orders, you can keep track of the production progress video or real-time scheduling at any time. And the delivery time is transparent and not concealed.
Comparison:
| Items | Conventional level | Johoty Delivery |
|---|---|---|
| Engineering samples | 7-15 days | 3-5 days/urgent 24-hour |
| mass production delivery time | 4-6 weeks | 7-15 days |
| Design feedback | 2-3 days | Within 12 hours |
| Capacity flexibility | Fixed schedule, difficult to insert orders | Standing capacity, supporting emergency order insertion within 3 days |
Applications of High Frequency Pogo Pins
High speed data transmission:
Clients: RF engineers, high-frequency testing engineers, semiconductor verification personnel.
Challenges: Loss of signal integrity, high insertion loss, severe crosstalk, impedance mismatch.
Descriptions: Suitable for IC test socket, RF test probe, 5G base station module connection, and high-speed server internal interconnection. In chip wafer testing and final testing, it is necessary to ensure lossless and stable signal transmission every time.
Technology and Data:
Frequency: Johoty high frequency pogo pins adopt precise coaxial structure design and low dielectric constant insulator. Supports signal transmission from 5GHz to 10GHz, and can even be extended to 15GHz.
Impedance: By optimizing the characteristic impedance inside the barrel, ensure minimal signal reflection. In actual testing, the insertion loss can be as low as 1.2dB@10GHz .
Anti-crosstalk: In multi head testing, a special metal shielded socket structure can effectively isolate adjacent pins. The crosstalk is below -15dB to ensure the accuracy of multi-channel parallel testing.
Automated testing equipment:
Clients: Test engineers, production managers, automation equipment integrators.
Challenges: Rapid probe wear, frequent maintenance downtime, high false alarm rate, and unstable point measurement.
Descriptions: Applied to ICT, FCT, and final chip testing stations. The equipment requires 24/7 uninterrupted operation, which places extremely high demands on the mechanical lifespan and electrical contact reliability of the test probes.
Technology and Data:
Long mechanical lifespan: Johoty uses high elasticity stainless steel springs and wear-resistant BeCu or palladium copper alloys to design the plunger. The rated lifespan can reach 100,000 to 1,000,000 cycles, significantly reducing production line maintenance costs.
Stable contact resistance: After 10,000 consecutive impact tests, the fluctuation of contact resistance is less than 10mΩ, ensuring absolute accuracy of test data.
Self-cleaning: The unique plunger tip includes crown tip and round tip, which can effectively puncture the oxide layer on the surface of the solder pad with each contact. Johoty high frequency pogo pins can achieve self-cleaning contact and avoid or minimize NFT.
High current and power management:
Clients: Power Engineer, Power Battery Engineer, Consumer Electronics Hardware Manager
Challenges: Contact heating, insufficient current carrying, voltage drop, spring annealing.
Descriptions: Magnetic charging dock for fast charging data cables and smart wearable devices. The interface of electric tool battery pack and ADAS onboard module connection.
Technology and Data:
High current carrying capacity: Through multi contact parallel design and thickened needle tube, the continuous current of a single needle can reach 5A-10A, even 50A.
Low and stable temperature rise: After continuous operation with a current of 5A for 1 hour, the contact temperature rise is below 30℃. This ensures safety during high-power transmission and prevents the spring from annealing and failure due to overheating.
Low contact impedance: Under vibration, the dynamic contact resistance remains stable below 20mΩ due to the preloading force of the spring ranging from 30gf to 300gf. Johoty high frequency pogo pins ensure that the voltage read by the power management chip is accurate and error-free.
Corrosion resistance and high/low temperature resistance:
Clients: Military/aerospace engineers, automotive electronics engineers, industrial sensor designers.
Challenges: Salt spray corrosion, contact failure caused by high and low temperature impact, and vibration disconnection.
Description: Oil drilling equipment, aerospace external sensors, outdoor security cameras. And the connection of car sensors installed near the engine.
Technology and Data:
Environmental testing: Complies with MIL-STD standards. In the 10-500Hz sweep frequency vibration test, the fluctuation of contact impedance is maintained within 10mΩ without any contact interruption.
Strong corrosion resistance: The composite coating of palladium nickel and gold can withstand salt spray testing for 48 to 1,000 hours without substrate corrosion.
Wide temperature working range: Within the temperature range of -55℃ to +125℃, the spring force attenuation is controlled at 1%. Contact is still reliable during cold start or high temperature operation.
differences Between High Frequency Pogo Pins and Pogo Pins
| Items | Ordinary Pogo Pins | High Frequency RF Pogo Pins |
|---|---|---|
| Design objectives | Direct current or low-frequency signal conduction ensures reliable mechanical contact. | Impedance matching is 50Ω to ensure signal integrity and reduce reflection and attenuation. |
| Essence of Structure | A simple spring and needle tube structure, assembled from multiple components, with contact points inside. | Coaxial design. The signal core, insulation medium, and outer shielding layer constitute a miniature coaxial connector in essence. |
| Frequency bottleneck | A slightly higher frequency (such as>1GHz) results in severe radiation, crosstalk, and loss. A length of 2mm at 2.8GHz will cause interference between adjacent pins. | Supports GHz-level transmission and can support bandwidths ranging from 5GHz-10GHz or even higher. |
| anti-interference capability | Unshielded, signal exposed, prone to EMI interference and susceptible to external interference. | The outer grounding shield has extremely low EMI and high isolation. |
FAQ
Questions: For high-frequency applications, signal integrity and impedance control are crucial. How can Johoty pogo pins ensure low insertion loss and good return loss when exceeding 1 GHz? Can you provide the corresponding S-parameter model or test report?
Answer: Regarding high frequency pogo pins, Johoty understands that the reliability of signals in high-frequency connections is the foundation of product performance.
Precision design and materials: Johoty uses specialized low dielectric constant insulation materials and gold plating processes. The internal structure is to maintain 50Ω continuity and minimize signal reflection.
Data: Johoty assists guests with VNA testing of high frequency pogo pins. Convenient for customers to directly import data into simulation software for verification.
Verification: Johoty high frequency pogo pins have been used in 5G base station testing and high-speed data transmission equipment. Stable performance at up to 10GHz, perfectly compatible with your RF circuit design.
Questions: Our concern is that the sample testing is good, but inconsistent performance during mass production may cause the production line to stop. How do you control quality tolerances in the mass production of high frequency pogo pins? What are your normal delivery times and emergency delivery capabilities if we need to urgently expand production?
Answer: Johoty understands the importance of supply chain stability to you. For this purpose, Johoty has established strict quality control and stocking system for high frequency pogo pins:
Full inspection instead of random inspection: In addition to the standard process of ISO certification, we conduct 100% automated testing of the elasticity and standing wave ratio of high frequency pogo pins. This ensures that every high frequency pogo pin parameter shipped to you is consistent.
Raw material inventory: Johoty has established long-term strategic partnerships with Johoty raw material suppliers. Keeping a safety stock of key copper materials and spring steel strips can effectively avoid delivery risks caused by raw material shortages.
Flexible delivery time: Standard pogo pins are usually shipped within 2 weeks. Customized high frequency pogo pins, Johoty can review drawings within 24 hours and complete samples within 2 weeks. If there is an emergency situation, Johoty can activate the expedited channel to compress the delivery time.
Question: Pogo pins are mechanical contact components. We have encountered situations where the spring relaxes during vibration testing or prolonged board to board connections, resulting in the instantaneous interruption of high-frequency signals. How many times does the mechanical lifespan and electrical contact stability of your high frequency pogo pins reach? Does Johoty have any relevant life test data?
Answer: This is the technical difficulty that Johoty, as a professional manufacturer, focuses on tackling. Johoty’s solution is based on dual guarantees of mechanical and electrical performance:
High fatigue life springs: Johoty uses SUS631, Inconel springs, and precision grinding technology. The mechanical lifespan of standard high frequency pogo pins can reach 50,000 to 100,000 cycles or more. Ensure that the elasticity of high frequency pogo pins remains constant throughout their entire lifecycle.
Anti-vibration design: The Plunger adopts a self-cleaning crown head or pointed design. It can penetrate the oxide layer during vibration and maintain a contact resistance of <20mΩ. Johoty provides a vibration table test report to simulate the signal without instantaneous interruption under transportation and working vibration frequencies.
Data traceability: Johoty archives the life test reports for each batch of high frequency pogo pins for future reference. If you have any requirements, Johoty can provide trend charts of plug and unplug life and contact resistance under 50μin and 80μin gold-plating. Let you intuitively experience the durability of Johoty high frequency pogo pins.
