68031-217HLF

FAQFrequently Asked Questions

• What are the key design constraints when integrating the Amphenol 68031-217HLF into a high-density board layout? The Amphenol 68031-217HLF is a 17-position, 0.100" pitch through-hole header with a 0.230" mating contact length and 0.513" overall contact length. In high-density layouts, account for the full contact stack-up depth when routing traces beneath the connector and ensure adequate clearance for mating connector insertion. The unshrouded design means adjacent signals are exposed, requiring careful trace routing and ground plane placement to minimize crosstalk between the17 positions. The 0.100" insulation height limits component placement directly next to the header footprint.
• Can the Amphenol 68031-217HLF be used as a direct replacement for legacy BERG connectors in existing products, and what compatibility factors should be verified? The Amphenol 68031-217HLF is part of the BERGSTIK® II series and is designed for compatibility with BERG connector ecosystems. However, direct replacement requires verification of mating connector part numbers, pin assignment, and mechanical alignment. If replacing an older BERG variant, confirm that the mating header (typically a receptacle) is rated for the same 0.100" pitch and 17-position configuration. The 68031-217HLF uses push-pull fastening with a square contact shape; if the legacy design used different fastening or contact geometry, mechanical fit issues may arise. Testating cycles on pre-production units to verify proper engagement and withdrawal force.
• What are the thermal and current-carrying implications when operating the Amphenol 68031-217HLF at or near its5A current rating per contact? The Amphenol 68031-217HLF carries a 5A per-contact rating with a 110V voltage maximum. In applications where multiple contacts are simultaneously carrying high current (for example, 5A across 8 or more positions in a 17-position header), the cumulative I²R heating can raise the connector temperature significantly. The phosphor bronze contacts and gold finish (15.0µin thickness) provide adequate conductivity, but thermal management should account for contact resistance (typically 10–20 mΩ per contact) and ambient board temperature. If the application requires continuous operation near 5A per contact in a confined thermal environment, measure contact temperature during prototype validation or considerated operation to extend connector life and reduce oxidation of the contact surface.
• How does the through-hole mounting and solder termination of the Amphenol 68031-217HLF affect PCB design and assembly processes? The Amphenol 68031-217HLF uses through-hole solder termination, which requires 17 plated holes on the PCB and adequate clearance for wave soldering or hand soldering. Through-hole mounting provides mechanical robustness and is suitable for applications subject to vibration or mechanical stress. Design the PCB footprint with sufficient pad diameter (typically 0.050" to 0.062" pads for 0.040" holes) to allow solder fillet formation on both the top and bottom sides. The connector's 0.183" post length must extend through the board thickness plus solder thickness; verify that your board thickness and solder process accommodate this depth. During reflow soldering, ensure thermal profiling does not exceed UL94 V-0 insulation limits (typically 260°C peak). The BERGSTIK® II series is MSL 1, meaning no moisture sensitivity precautions are required during storage or handling.
• What precautions should be taken regarding the unshrouded design of the Amphenol 68031-217HLF in high-vibration or contaminated industrial environments? The Amphenol 68031-217HLF has unshrouded contacts, which leaves the mating interface and signal traces exposed to dust, moisture, and mechanical interference. In industrial or outdoor applications, consider secondary protection such as conformal coating, poting, or a protective shroud cover that can be added during assembly. The connector's gold finish (15.0µin thickness) resists corrosion, but in harsh chemical or salt-spray environments, the underlying phosphor bronze may oxidize if the gold layer is damaged during handling or mating cycles. If the application involves frequent connect/disconnect cycles in contaminated settings, plan for periodic contact inspection and cleaning, or specify a sealed variant if available from the manufacturer. The unshrouded design also means row spacing and insulation height (0.100") provide limited electrical isolation; verify that crepage and clearance distances meet your safety standards for the intended voltage and application class.
• How should the Amphenol 68031-217HLF be specified when designing for international regulatory compliance, and what are the REACH and ECCN implications? The Amphenol 68031-217HLF carries REACH Affected status and ECCN classification EAR99, which means the component is subject to European chemical substance regulations and U.S. export controls. Verify REACH compliance documentation (substance of very high concern, SVHC list) from the manufacturer's technical support or compliance team before committing to large production runs. The UL94 V-0 insulation material rating indicates flame-retardant properties suitable for electronic equipment in North America and many international markets. When designing for products intended for sale in the EU, China, Japan, or other regions with regional connector standards (such as AS/NZS, RoHS, or ISO certifications), confirm that the BERGSTIK® II series meets the relevant local specifications. Document the connector's REACH and ECCN status in your Bill of Materials (BOM) compliance record to streamline supply chain audits and export documentation.
• What are the mating and unmating force characteristics of the Amphenol 68031-217HLF, and how do they affect connector reliability over the product lifecycle? The Amphenol 68031-217HLF uses push-pull fastening and square phosphor bronze contacts with a mating contact length of 0.230". The mating force (insertion and withdrawal resistance) depends on contact geometry, plating thickness, and contact area; typical BERGSTIK® II connectors exhibit forces in the range of 0.15–0.25 lbf per contact. Over repeated mating cycles (typically rated for 50–100 cycles depending on contact design), the gold plating may experience localized wear at high-stress points. Design the connector mounting pad and mechanical support to ensure the header does not flex during mating, as lateral stress accelerates wear and can lead to intermittent contact. If the application requires frequent disconnect/reconnect cycles (more than 10 per day), validate the connector's cycle rating through accelerated testing or request a connector variant rated for higher cycle counts. The UL94 V-0 insulation material resists thermal degradation, but contact oxidation or plating wear remains the primary failure mode in long-term reliability scenarios.
• Can the Amphenol 68031-217HLF be used in mixed-signal or high-speed digital applications, and what signal integrity considerations apply? The Amphenol 68031-217HLF is rated for 110V and 5A per contact, making it suitable for moderate-speed digital signals and analog I/O up to roughly 1–10 MHz without significant signal degradation. The connector's unshrouded 17-position, single-row design creates a distributed series of impedance discontinuities along the signal path; transmission line effects and crosstalk between adjacent signals become relevant if signal rise times are faster than a few nanoseconds. For applications exceding 50 Mbps or requiring tight signal integrity (such as DDR memory interfaces or high-speed serial links), consider alternative connectors with differential pair spacing, controlled impedance, or shielded variants. The 0.100" pitch between adjacent positions allows approximately 50–70 pF of mutual capacitance between neighboring pins, which can couple noise between parallel signal lines. Use ground or shield traces between high-speed signal pairs, and keep signal traces as short as possible from the connector to destination IC to minimize resonance and ringing artifacts.
• What replacement or upgrade paths exist if the application outgrows the 17-position capacity of the Amphenol 68031-217HLF, and what design changes are required? The Amphenol 68031-217HLF is the 17-position variant of the BERGSTIK® II series. If the design requires additional I/O beyond 17 positions, options include the18, 20, or 34-position variants (part numbers 68031-218HLF, 68031-220HLF, or 68031-234HLF, respectively), which maintain the same 0.100" pitch and through-hole mounting. Upgrading to a higher-position count requires PCB layout changes (additional footprint area for additional pins) and corresponding firmware or hardware logic updates to the mating connector design. Alternatively, if the application can tolerate multiple smaller connectors, deploying two 17-position headers or one high-density connector from a different series (such as a 0.050" pitch variant) may offer flexibility. Evaluate the trade-offs between connector footprint, assembly complexity, mating force, and signal routing before committing to a replacement. Verify that the mating receptacle and cable harness design are compatible with the new connector geometry and contact spacing.
• How does the contact finish specification (gold or gold, GXT™) on the Amphenol 68031-217HLF affect long-term reliability and oxidation resistance? The Amphenol 68031-217HLF offers a choice of standard gold finish or GXT™ gold finish, both at 15.0µin (0.38µm) thickness over the underlying phosphor bronze contact material. Standard gold provides adequate corosion resistance for typical indoor electronics applications with relative humidity below 85% and no aggressive chemical exposure. GXT™ finish is an enhanced formulation designed to resist oxidation and sulfidation in more challenging environments (moderate humidity, urban or industrial air quality). The 15.0µin thickness is a thin coating; if the contact is subjected to fretting (micro-motion during thermal cycling or vibration), the gold layer may gradually wear through, exposing the phosphor bronze base metal to oxidation. In applications with temperature cycling, high humidity, or corosive atmospheres, specify the GXT™ variant and consider additional protective measures (conformal coating or sealed enclosure) to extend contact life. Over a 5–10 year service life, regular inspection of mating surfaces is recommended, particularly in harsh environments, to detect early signs of oxidation or tarnishing that could increase contact resistance.
• What are the moisture and environmental stress conditions under which the Amphenol 68031-217HLF maintains rated performance, and how does MSL 1 classification apply? The Amphenol 68031-217HLF carries MSL 1 (Moisture Sensitivity Level 1, Unlimited shelf life), which means the component has no moisture-related sensitivity and does not require desiccant packaging, controlled storage temperature, or baking prior to soldering. This classification is a significant advantage for inventory management and supply chain logistics. However, MSL 1 rating applies only to the plastic insulation material; the gold-plated contacts themselves can still develop oxidation or corosion if exposed to high humidity (>90% RH), condensing environments, or aggressive chemical vapors over extended periods. The UL94 V-0 insulation material is inherently flame-retardant but not hydrophobic; prolonged immersion or exposure to salt spray will degrade electrical performance. In applications destined for tropical climates, marine environments, or enclosures with poor climate control, implement secondary protection such as poting, conformal coating, or a sealed connector variant. Store the connectors in normal room conditions (15–35°C, 20–65% RH); the MSL 1 rating permits standard warehouse storage without special humidity controls.
• What are the design trade-offs when choosing the Amphenol 68031-217HLF over alternative connector topologies, such as D-Sub, RJ45, or micro connectors? The Amphenol 68031-217HLF offers several distinct characteristics that make it suitable for specific design scenarios. Compared to D-Sub 25-position connectors, the BERGSTIK® II header is more compact (single row, 0.100" pitch) and allows simpler, lower-cost cable harnesses but lacks the shielding and mechanical robustness of a D-Sub. Versus RJ45 (10-position, 0.050" pitch), the 68031-217HLF accommodates higher per-contact current (5A vs. 1–2A typical) and higher voltage (110V vs. ~60V) but is less standardized for data networking applications. Compared to micro connectors (0.030–0.050" pitch variants), the BERGSTIK® II offers easier hand assembly and rework, lower cost per position, and better current capacity but consumes more PCB area. The through-hole mounting and push-pull fastening make the 68031-217HLF ideal for industrial equipment, test instrumentation, and applications requiring tool-less connection, whereas micro connectors are preferred for space-constrained consumer products. Evaluate your constraints on current per contact, voltage rating, mating cycle count, environmental protection, and assembly cost to determine the optimal connector family for your application.