87185-413HLF

FAQFrequently Asked Questions

• Can the Amphenol ICC 87185-413HLF be used as a direct replacement for legacy connectors in existing PCB designs without layout modifications? The 87185-413HLF uses the standard 0.100" (2.54mm) pitch spacing and through-hole solder termination, making it compatible with most vintage board layouts designed for 2.54mm headers. However, verify that the footprint accommodates the 0.095" (2.41mm) post length and the overall 1.238" contact length of the 87185-413HLF. Some older designs may have been laid out for shorter posts or different contact geometries. Check the original design documentation or measure the PCB pad depth to confirm the solder post will not interfere with component placement on the reverse side. If the post length differs from your original connector, you may need to adjust solder mask clearances or reflow profiling.
• What are the signal integrity considerations when using the 87185-413HLF in high-speed digital applications, and are there any frequency limitations? The 87185-413HLF is an unshrouded, single-row header designed primarily for moderate-speed digital and power applications. In high-speed designs (above 100 MHz), the lack of shielding and the absence of controlled impedance paths can introduce crosstalk between adjacent pins and increased EMI susceptibility. The 13-position single-row configuration makes it unsuitable for differential pair routing without careful trace separation on the PCB. For high-speed applications, consider shielded or shrouded variants, or segregate critical signals across multiple connector instances. The 5A current rating also limits high-frequency switching applications where higher currents are needed; thermal considerations become critical above 50 MHz due to increased dielectric losses in the insulation material.
• Is the Amphenol ICC 87185-413HLF suitable for automotive or harsh industrial environments, or does it require conformal coating for moisture protection? The 87185-413HLF carries a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life and no special moisture absorption concerns during storage or assembly. However, the unshrouded design and the absence of an ingress protection (IP) rating mean the connector itself offers no environmental sealing. In automotive applications subject to thermal cycling, salt spray, or high humidity, conformal coating (acrylic or urethane) is recommended to prevent corrosion of the tin-plated contacts and phosphor bronze base material. The UL94 V-0 insulation rating addresses flammability but not moisture ingress. For harsh industrial settings, consider potting the assembled connector or using environmental enclosures. The tin plating (100 µin thickness) provides baseline corrosion resistance but may not be sufficient for extended exposure to aggressive environments without additional protection.
• Can multiple 87185-413HLF connectors be stacked or daisy-chained to create a larger connector system, and what are the mechanical and electrical implications? The 87185-413HLF is designed as a single-row, through-hole header without mechanical stacking features or alignment pins. Physically stacking multiple units side-by-side is possible but requires custom mechanical framing or PCB layout planning to maintain 0.100" pitch alignment and prevent skew. Electrically, daisy-chaining multiple connectors introduces cumulative contact resistance and potential signal degradation due to the series path through multiple mating interfaces. The 5A current rating applies per connector; if current must flow through multiple stacked connectors in series, the combined contact resistance will generate additional heat. For applications requiring >13 positions, using a single multi-position connector (e.g., a 26-pin or higher variant in the BERGSTIK II series) is preferable to avoid alignment drift, intermittent contacts, and increased assembly complexity.
• What is the maximum switching frequency or dwell time the Amphenol ICC 87185-413HLF can sustain for repeated mating and unmating cycles in field service scenarios? The 87185-413HLF employs a push-pull fastening mechanism designed for standard board-to-board or cable-to-board connections with manual mating/unmating. Amphenol ICC does not publish a rated cycle life (mating cycles) for this particular model in standard datasheets. Typically, unshrouded headers of this class are rated for 50–200 mating cycles before contact wear becomes noticeable. Repeated unmating in field service exposes the tin-plated contacts to oxidation and wear; each cycle slightly degrades contact pressure and resistance. If your application requires frequent hot-swapping or field replacement (>50 cycles), the 87185-413HLF may not be suitable; consider connectors explicitly rated for high-cycle-count applications (typically 500+ cycles) or redesign the board to minimize unmating events. Push-pull mechanisms can loosen over time; periodic visual inspection for contact corrosion or pin misalignment is recommended in long-term deployments.
• How does the single-row, unshrouded design of the 87185-413HLF affect component density and thermal management on compact PCBs? The unshrouded, single-row geometry of the 87185-413HLF allows minimal board footprint but eliminates mechanical strain relief and shielding benefits. In compact layouts, adjacent components must be positioned carefully to avoid contact between component leads and the mating connector housing (or lack thereof). The 0.100" spacing allows relatively close component placement, but thermal clearance becomes a concern if heat-generating components (resistors, capacitors) are positioned immediately adjacent to the connector pins. With a 5A maximum current rating and tin-plated contacts, localized heating at high-current pins can reach 50–70°C above ambient under sustained load. In thermally constrained designs, route the highest-current signals to the center pins where thermal gradients are lower, and avoid placing temperature-sensitive components within 0.5 inches of the connector. Conformal coating or potting compounds used for environmental protection also add thermal mass; account for this in thermal simulations.
• What are the lead-free solder joint reliability concerns when reworking or reheating PCBs populated with the 87185-413HLF? The 87185-413HLF features tin-plated contacts and phosphor bronze post material, both compatible with lead-free solder processes (RoHS Compliant). However, multiple reflow cycles or repair rework can degrade the tin plating, exposing the underlying phosphor bronze to oxidation. The 100 µin (2.54 µm) tin coating is relatively thin; aggressive solder removal (desoldering braid, vacuum desoldering) can strip plating on the post. After rework, inspect the post under magnification for bare copper or oxidation; if detected, apply a thin layer of flux and reflow solder to restore the protective tin layer. Lead-free solders (SAC alloys) create more brittle intermetallic layers at the tin-copper interface compared to tin-lead solders; thermal cycling or mechanical vibration in field use may cause micro-cracks at the solder joint. Limit rework to one or two cycles when possible, and use a controlled reflow profile (peak temperature 240–260°C) to minimize intermetallic growth.
• Can the Amphenol ICC 87185-413HLF be used with standard 0.100" pitch wire-to-board harnesses, and are there compatibility issues with commonly available mating connectors? The 87185-413HLF is a header (male pin) connector with 0.100" (2.54mm) pitch, designed to mate with standard 13-position receptacle connectors (female sockets) also at 2.54mm pitch. Commonly available mating connectors include Molex KK series, Samtec TSW series, and other standard 0.100" pitch housing families. Verify that the mating connector's contact cavity depth accommodates the 1.043" (26.49mm) mating contact length of the 87185-413HLF. Some aftermarket or cost-reduced receptacles may have shallower cavities, resulting in incomplete mating depth and increased contact resistance. Additionally, confirm that the receptacle's insulation material and pin retention strength are compatible with your assembly environment (thermal shock, vibration). When sourcing replacement harnesses, specify 13-position, 0.100" pitch, and verify the connector series name from the original design documentation; generic "2.54mm headers" can vary significantly in contact spring pressure and durability.
• Is the Amphenol ICC 87185-413HLF suitable for applications requiring high reliability qualification (space, medical, or mil-spec environments), and what testing documentation is available? The 87185-413HLF is a commercial-grade connector without aerospace (AS or MS) or military (MIL-DTL) qualification. It does not carry a high-reliability status and is not approved for space flight hardware, implantable medical devices, or military systems under formal specifications. For medical or industrial applications requiring documented reliability, Amphenol ICC offers qualified alternatives in the BERGSTIK II series (e.g., models with higher-temperature ratings or enhanced contact finishes). If your design requires third-party qualification, consult Amphenol ICC directly for test reports (environmental stress screening, HALT, HASS data) and failure rate documentation. Many commercial-grade connectors lack complete failure mode analysis; for critical applications, conduct in-house reliability testing (thermal cycling, salt spray, vibration) to validate long-term performance. The UL94 V-0 flammability rating provides some assurance for consumer electronics but does not substitute for systemic reliability qualification.
• How should the Amphenol ICC 87185-413HLF be stored and handled during manufacture to prevent corrosion or contact contamination? The 87185-413HLF carries MSL 1 (Unlimited), meaning there are no moisture-related storage restrictions. However, the unshrouded pin design is susceptible to dust, flux residue, and fingerprint oils contaminating the mating contacts during handling. Store in a clean, dry environment (relative humidity <50% ideal) and handle with ESD-safe techniques, as the tin-plated contacts can be scuffed or scratched. After solder reflow, clean residual flux from the connector housing and pins using isopropyl alcohol or approved flux cleaner; residual rosin flux can attract humidity and promote corrosion of the tin plating over months or years of storage. When unpacking the 87185-413HLF, inspect the pins visually for oxidation (dark discoloration) or solder bridges; oxidized pins may require light burnishing with a soft brush and IPA before mating. If the connector is to be stored long-term (>6 months) before assembly, package it in a sealed bag with desiccant to minimize atmospheric exposure. For high-volume production, supplier quality agreements should require incoming inspection and certification of contact cleanliness and tin coating integrity.
• What are the trade-offs between using the Amphenol ICC 87185-413HLF versus a shrouded or polarized alternative for reducing assembly errors or mating mistakes? The 87185-413HLF is unshrouded and unpolarized, allowing mating in any orientation if the mating connector is also unpolarized. This flexibility is advantageous for universal connectors but creates risk of reversed insertion or misalignment during assembly, particularly in high-volume manufacturing or field service. Shrouded variants (such as connectors with polarization ribs or keyed insulation) prevent incorrect mating and reduce assembly errors by 90–95% in factory and field environments. Polarized alternatives typically add 10–20% cost and increase PCB footprint by 0.5–1.0 inches due to the additional mechanical features. For mission-critical applications (e.g., power distribution, clock signals), the 87185-413HLF should be paired with assembly process controls (silk-screen markings, assembly instructions, automated vision inspection) to catch reversed insertion before reflow. If your supply chain or field service environment tolerates low assembly error rates, the unpolarized 87185-413HLF is cost-effective; otherwise, the investment in a shrouded or keyed variant pays dividends in reduced rework and warranty claims.
• How does the 5A current rating of the Amphenol ICC 87185-413HLF translate to actual temperature rise and power dissipation across different pin groups or load scenarios? The 5A rating applies to the connector as a whole; individual pins within the 87185-413HLF share current capacity based on circuit design. The phosphor bronze posts and tin plating have a combined contact resistance of approximately 10–20 mΩ per pin contact interface (mating + post). Under a 5A load distributed equally across all 13 pins, each pin carries ~385 mA, generating ~1.5–3 mW per pin. In asymmetric load scenarios (e.g., all 5A concentrated on one or two pins), localized heating can reach 50–80°C above ambient. The insulation material (likely a phenolic or glass-filled nylon, though not specified in the datasheet) has a continuous rating of 80–105°C; sustained operation near 5A in enclosed environments may approach or exceed the insulation rating. For designs carrying >3A on any single pin, conduct thermal simulations or prototype testing to measure actual contact temperature using thermocouples or thermal imaging. Consider increasing connector count (using multiple instances of the 87185-413HLF) to distribute current and reduce per-pin heating. The 110V voltage rating assumes adequate isolation and creepage distances; verify that your PCB layout meets UL/IEC isolation requirements at 110V to avoid arc-over risk, particularly if the connector is exposed to vibration or thermal cycling that could cause micro-movements.
• What are the cost and availability trade-offs when comparing the Amphenol ICC 87185-413HLF to lower-cost competitor alternatives (e.g., TE Connectivity, Molex, or generic Chinese manufacturers)? The 87185-413HLF is a mid-range commercial header from a reputable OEM (Amphenol ICC), with typical unit costs of $0.15–$0.35 depending on order volume and supplier. Competitor options include TE Connectivity's AMP Superseal or Molex KK series (similar price and performance), and lower-cost generic 2.54mm headers from Chinese manufacturers ($0.02–$0.08 per unit). The cost difference reflects quality control, supplier stability, and documentation; Amphenol ICC provides consistent contact plating, phosphor bronze material specifications, and availability guarantees. Lower-cost alternatives often exhibit higher failure rates due to thinner tin plating, inconsistent contact spring pressure, and corrosion sensitivity. A $0.20 cost difference per connector becomes significant in high-volume designs; however, the warranty and rework cost of a failed connector in the field often exceeds the per-unit savings. For consumer electronics with short warranty periods, low-cost alternatives may be acceptable; for industrial or long-life products, the 87185-413HLF's cost premium is justified. Verify supplier lead times and inventory availability; the 87185-413HLF is widely stocked, while generic alternatives may have variable availability and longer lead times during market fluctuations.