802-10-046-30-480101

FAQFrequently Asked Questions

• Can the Preci-Dip 802-10-046-30-480101 46-position header be used as a direct replacement for legacy 0.1-inch pitch connectors in board-to-board applications? The Preci-Dip 802-10-046-30-480101 is a surface-mount header with 0.100" (2.54mm) pitch and 46 positions across 2 rows, making it mechanically compatible with standard 0.1-inch spacing. However, verify that your existing mating connector uses the same row-to-row spacing (0.100"), contact length (0.141"), and push-pull fastening mechanism. Legacy through-hole headers may require PCB layout changes since the 802-10-046-30-480101 uses SMD termination. Additionally, confirm the mating contact material and gold finish thickness (10.0µin on this part) are compatible with your connector's specifications to avoid corrosion or intermittent contact issues.
• What is the maximum current and voltage the Preci-Dip 802-10-046-30-480101 can safely handle in a data acquisition or multi-signal distribution application? The Preci-Dip 802-10-046-30-480101 is rated for 3A per contact and 150VDC maximum. In multi-signal applications, allocate current carefully across the 46 pins; if you have power distribution lines alongside data signals, ensure power pins do not exceed 3A and signal traces remain well-separated to prevent crosstalk. For applications requiring higher current on individual pins, consider using multiple parallel pins per signal or selecting a connector with higher amperage rating. The 150VDC rating applies to the insulation system; verify your supply voltage and transient protection accordingly.
• How does the 0.110" (2.79mm) insulation height of the Preci-Dip 802-10-046-30-480101 affect PCB stackup and clearance planning in compact assemblies? The Preci-Dip 802-10-046-30-480101 has an insulation height of 0.110" (2.79mm), which defines the vertical distance from the PCB surface to the top of the insulation housing. In compact or densely populated boards, account for this height when planning component placement above and below the connector footprint, particularly if you have components on the opposite side of the board. Ensure sufficient clearance for insertion and removal of the mating connector. If space is constrained, measure the actual mating connector height as well, as the combined stack height will affect enclosure design and component interference.
• Is the Preci-Dip 802-10-046-30-480101 suitable for automotive or harsh industrial environments, or should I consider sealed alternatives? The Preci-Dip 802-10-046-30-480101 is an unshrouded header with no ingress protection rating, making it unsuitable for direct exposure to moisture, dust, or liquid in harsh environments. Operating temperature range is -55°C to 125°C, which supports industrial use cases, but the lack of shrouding means contaminants can enter between the pins. For automotive under-hood, marine, or high-humidity industrial applications, either use a protective cover over the mated pair, specify a shrouded variant, or add conformal coating to the contact area. Additionally, verify that the push-pull fastening mechanism will not loosen due to vibration in mobile applications without additional mechanical retention.
• What design considerations should I account for when soldering the Preci-Dip 802-10-046-30-480101 SMD header to a PCB in a high-volume manufacturing environment? The Preci-Dip 802-10-046-30-480101 uses solder termination and is MSL (Moisture Sensitivity Level) 1, meaning it has unlimited shelf life without baking requirements, simplifying supply chain handling. During reflow, the connector's brass contacts with 10.0µm gold plating and PCT/polyester glass-filled insulation (UL94 V-0 rated) can withstand standard lead-free reflow profiles (up to approximately 260°C peak). However, with 46 positions across 2 rows, ensure your solder paste stencil design prevents bridging between adjacent pins, and validate that the narrow spacing does not trap excess solder. Consider in-circuit testing access for signal verification post-assembly, as rework becomes difficult with this pin density.
• How does the gold plating thickness of 10.0µin (0.25µm) on the Preci-Dip 802-10-046-30-480101 compare to industry standards, and will it provide adequate protection against oxidation over the product lifecycle? The Preci-Dip 802-10-046-30-480101 features 10.0µin (0.25µm) gold plating on both mating and post contacts. This thickness is at the lower end of common specifications; many industrial connectors specify 20-50µin for long-term environmental resistance. With 0.25µm gold, corrosion protection depends heavily on operating conditions—in dry environments or with conformal coating, the thickness is adequate, but in high-humidity, thermal cycling, or outdoor storage conditions, the thin layer may not provide sufficient long-term oxidation resistance. Verify whether your application requires supplementary protection via storage conditions, humidity control, or conformal coating. For critical applications, compare against alternatives with thicker plating specifications.
• Can the Preci-Dip 802-10-046-30-480101 be used in applications requiring frequent mechanical mating and unmating, and what is the typical contact life expectancy? The Preci-Dip 802-10-046-30-480101 uses push-pull fastening, which is designed for moderate mating cycles but not for high-frequency connect-disconnect scenarios. Typical push-pull connectors are rated for 50-500 mating cycles, depending on the specific design and material durability. Repeated mating and unmating can wear the gold plating and potentially cause loosening of the push-pull mechanism. For applications with frequent field disconnects (test fixtures, development boards), expect accelerated wear. Consider alternatives with threaded fasteners or latching mechanisms for applications requiring >500 cycles, or plan for preventive maintenance and connector replacement intervals.
• What is the REACH and RoHS compliance status of the Preci-Dip 802-10-046-30-480101, and does it affect procurement or supply chain choices? The Preci-Dip 802-10-046-30-480101 is RoHS3 Compliant and REACH Unaffected, with ECCN classification EAR99 (no export restrictions). This means the part is suitable for procurement in markets requiring RoHS certification and has no hazardous substance restrictions per REACH regulation. RoHS3 compliance covers the restriction of hazardous substances in electrical and electronic equipment, so lead-free solder termination and compliant contact materials are guaranteed. If you operate in markets with strict environmental regulations (EU, China, Japan), this part meets those requirements without additional qualification. For REACH concerns, the unaffected status indicates no SVHC (Substances of Very High Concern) notifications are required, simplifying compliance documentation.
• How should I configure signal routing and ground return paths when using the Preci-Dip 802-10-046-30-480101 for high-speed data signals or sensitive analog measurements? The Preci-Dip 802-10-046-30-480101 provides 46 positions across 2 rows with 0.100" pitch, but with 46 total pins, you must carefully allocate rows for power, ground, and signal functions. For high-speed signals (e.g., >100 MHz), interleave ground pins adjacent to signal pins to minimize impedance and crosstalk. For sensitive analog signals, dedicate one row primarily to ground returns and separate analog signals from digital switching noise. The circular contact design provides symmetrical current paths, but with 46 positions, consider whether routing becomes congested on the mating PCB. Additionally, verify that the mating connector's internal layout provides adequate ground plane coupling; a poorly designed mating connector can negate good signal integrity planning on the header side.
• Are there pin-compatible alternatives to the Preci-Dip 802-10-046-30-480101 from other manufacturers, and what are the trade-offs in switching suppliers? The Preci-Dip 802-10-046-30-480101 follows the standard 0.100" (2.54mm) pitch header format, so mechanically compatible alternatives include headers from Samtec, TE Connectivity, Molex, and Harting. Pin compatibility exists across these suppliers for the basic 46-position 2-row configuration, but verify specific differences: contact material (some use tin over nickel instead of gold), plating thickness, insulation material, current rating, and operating temperature range vary. Switching suppliers requires re-validation of solder reflow profiles, mechanical fit tolerances, and contact resistance characteristics. Additionally, review lead times and cost implications—Preci-Dip is typically a specialty supplier, and alternatives may offer different pricing and availability profiles. Test samples from the alternative supplier before committing to full production.
• What precautions should be taken if the Preci-Dip 802-10-046-30-480101 is used in space, aerospace, or mission-critical applications where failure cannot be tolerated? The Preci-Dip 802-10-046-30-480101 is not explicitly specified for aerospace or space applications; there is no indication of qualification to MIL-SPEC, AS9100, or ESA (European Space Agency) standards. For mission-critical use, contact Preci-Dip directly to determine whether lot traceability, qualification testing (thermal cycling, vibration, salt-fog), or failure analysis data are available. Unshrouded headers present additional risk due to potential contamination and difficulty in field repair. Consider fully screened and qualified alternatives from suppliers with established aerospace pedigree (e.g., TE Connectivity AMP or Samtec qualified variants). If Preci-Dip 802-10-046-30-480101 must be used, implement redundancy, perform accelerated life testing on samples, and establish strict quality control procedures including 100% electrical and mechanical inspection.
• How does the Moisture Sensitivity Level (MSL) 1 rating of the Preci-Dip 802-10-046-30-480101 simplify manufacturing and storage logistics compared to higher MSL components? The Preci-Dip 802-10-046-30-480101 carries MSL 1 (Unlimited), meaning there is no shelf-life restriction and no requirement for dry-bag storage or baking before assembly. This eliminates moisture-related assembly defects common with MSL 3-5 components. You can store the 802-10-046-30-480101 in standard warehouse conditions indefinitely without risk of solder joint degradation or delamination. This reduces supply chain complexity, minimizes component handling procedures, and lowers total cost of ownership compared to MSL 3+ connectors that require controlled humidity storage and pre-assembly conditioning. However, MSL 1 does not eliminate the need for standard ESD precautions during assembly; follow normal anti-static procedures to prevent electrostatic discharge damage to sensitive downstream circuitry.
• Can the Preci-Dip 802-10-046-30-480101 be mixed with other 0.100" pitch connectors in a system, or should the entire interconnect chain use the same manufacturer? The Preci-Dip 802-10-046-30-480101 follows the generic 0.100" pitch standard, so it can mate with any standard 0.1-inch pitch connector. However, mixing manufacturers across a system introduces variability in contact resistance, plating durability, fastening tolerance, and electrical performance. The Preci-Dip 802-10-046-30-480101 header pairs with mating connectors (sockets or plugs); verify that your chosen mating connector's contact geometry, material composition, and finish thickness are compatible. Mismatched mating pairs can result in loose connections, accelerated wear, or contact resistance drift. For reliability-critical applications, use matched header and mating connector pairs from the same manufacturer or conduct thorough testing of mixed combinations under actual operating conditions before production release.
• What is the expected contact resistance of the Preci-Dip 802-10-046-30-480101, and how much resistance drift should be anticipated over time? The Preci-Dip 802-10-046-30-480101 datasheet does not specify contact resistance; however, with brass contacts and 10.0µm gold plating under 3A maximum rating, typical initial contact resistance is in the range of 5-20 milliohms per contact pair. Resistance can increase over time due to surface corrosion (especially in humid environments), mechanical wear from mating cycles, or oxidation of the gold plating. For applications sensitive to contact resistance (e.g., power distribution or precision analog circuits), design test points to monitor resistance periodically. Implement environmental controls (conformal coating, controlled humidity) to minimize drift. In high-current applications, distribute current across multiple pins to reduce I²R heating, which accelerates contact degradation.
• Is the Preci-Dip 802-10-046-30-480101 suitable for DC-DC converter interconnects or high-current power distribution, and what are the design limits? The Preci-Dip 802-10-046-30-480101 is rated for 3A per contact and 150VDC. For DC-DC converter interconnects, 3A per pin is a practical limit for low-voltage (e.g., 3.3V, 5V) secondary supplies, but for higher-power primary rails, this limit quickly becomes restrictive. If your converter requires >3A on a single rail, use multiple parallel pins per connection (e.g., 3 pins in parallel for 9A total). This increases footprint and complicates PCB routing. Additionally, consider voltage drop across the connection; at 3A with ~10 milliohm contact resistance, expect ~30mV drop, which may be significant for precision circuits. For applications requiring >50W of power distribution, evaluate higher-current connectors or secondary power distribution schemes. Verify that the mating connector supports parallel pin current sharing without hotspots.
• How are mechanical tolerances specified for the Preci-Dip 802-10-046-30-480101, and could loose mechanical fit cause intermittent contact issues? Detailed mechanical tolerance specifications for the Preci-Dip 802-10-046-30-480101 are not provided in the standard datasheet; however, as an SMD header with push-pull fastening, mechanical fit depends on manufacturing precision of both the header and mating connector. Loose tolerances can result in pin offset or contact misalignment, leading to intermittent connections under vibration. Request detailed mechanical drawings from Preci-Dip if deploying in vibration-prone environments (automotive, industrial machinery). For critical applications, conduct pull-force testing and thermal cycling trials to verify mechanical stability. Additionally, inspect samples from production lots to confirm consistency; connectors from different manufacturing batches may exhibit tolerance drift, particularly if produced at different facilities.
• What conformal coating or protective measures are recommended for the Preci-Dip 802-10-046-30-480101 if exposed to salt spray, high humidity, or condensation cycling? The Preci-Dip 802-10-046-30-480101 is unshrouded and lacks ingress protection, so direct environmental exposure will degrade contacts and insulation. Acrylic conformal coating (e.g., Dow Corning 1-2577 or equivalent) can be applied over the mated connector pair to protect against moisture ingress and corrosion. However, conformal coating reduces access for rework and may trap ionic contaminants if salt residue is present before coating. For high-humidity environments, consider encapsulation in a secondary connector shroud or potting compound. Alternatively, specify a sealed connector variant from the Preci-Dip product line if available. For salt-spray environments (marine, offshore), single coatings are insufficient; implement multi-layer protection (conformal coat + secondary seal) and plan for accelerated maintenance intervals. Conduct salt-fog testing (per ASTM B117) on representative samples to validate your chosen protection strategy.
• Can the Preci-Dip 802-10-046-30-480101 be used in medical device applications, and what additional certifications or validation may be required? The Preci-Dip 802-10-046-30-480101 is not explicitly certified for medical device use; biocompatibility, sterility, and traceability documentation are not indicated. If deploying in medical devices subject to FDA or international regulatory review, verify whether Preci-Dip can provide ISO 13485 quality system documentation, material certifications, and biocompatibility testing (per ISO 10993) for the insulation material (PCT polyester). Additionally, establish whether the connector is approved for specific clinical environments (implantable, external, sterile field). For Class II or III medical devices, regulatory bodies often require supplier audits and design history files. Contact Preci-Dip's medical sales team early in the design phase to determine feasibility; off-the-shelf commercial connectors often require extensive additional validation work.
• What are the thermal expansion characteristics of the Preci-Dip 802-10-046-30-480101 across the -55°C to 125°C operating range, and could thermal cycling cause connection degradation? The Preci-Dip 802-10-046-30-480101 uses PCT polyester insulation with brass contacts and gold plating. PCT has a coefficient of thermal expansion (CTE) different from FR4 PCB material, which can induce mechanical stress during thermal cycling from -55°C to 125°C. Over many cycles, this stress can cause solder joint fatigue, particularly at the PCB interface if the connector is heavily loaded. Brass and gold have different CTEs than PCT, potentially creating internal stresses within the contact assembly. For applications with frequent thermal cycling (e.g., automotive, outdoor industrial), conduct accelerated thermal cycling testing (e.g., -40°C to +85°C, 500+ cycles per IPC-9701) on prototype assemblies and monitor for solder cracks, contact resistance drift, or mechanical loosening. Mechanical retention measures (shrouds, clips) or potting may be necessary to absorb stress.
• How does the 0.141" (3.60mm) contact mating length of the Preci-Dip 802-10-046-30-480101 affect the design of the mating connector housing, and what insertion force is typical? The Preci-Dip 802-10-046-30-480101 has a contact mating length of 0.141" (3.60mm), which defines how deep the mating connector's receptacle must be to ensure full contact engagement. Insufficient mating length results in shallow insertion and poor contact pressure. The mating connector housing must be designed to accommodate this 3.60mm contact depth plus clearance for the insulation. Push-pull fasteners typically require insertion forces of 50-300 grams per pin depending on contact spring tension and number of positions. With 46 positions, total insertion force could exceed 5-10 kilograms, making connector engagement challenging for field technicians without proper tooling. Verify insertion force specifications for both the header and mating connector to ensure they are compatible. For applications requiring frequent field connections, specify mating connectors with lower insertion force or guided alignment features to ease assembly.