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HomeProductsConnectors, InterconnectsCard Edge Connectors - Edgeboard Connectors345-034-521-603
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345-034-521-603 - EDAC Inc.

Manufacturer Part Number
345-034-521-603
Manufacturer
EDAC Inc.
Allelco Part Number
98D-345-034-521-603
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
46,443 pcs available, New & Original
Parts Description
CONN EDGE SINGLE FML 34POS 0.100
Package
Box
Data sheet
345-034-521-603.pdf

Environmental Information

EDAC REACH.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 46443
  • Unit Price: $13.072
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $13.072 $13.07
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

345-034-521-603 Tech Specifications
EDAC Inc. - 345-034-521-603 technical specifications, attributes, parameters and parts with similar specifications to EDAC Inc. - 345-034-521-603

Product Attribute Attribute Value
Manufacturer EDAC Inc.
Termination Rows 1
Termination Solder
Series 345
Read Out Single
Pitch 0.100" (2.54mm)
Package Box
Operating Temperature -40°C ~ 105°C
Number of Rows 1
Number of Positions/Bay/Row 34
Number of Positions 34
Mounting Type Through Hole
Product Attribute Attribute Value
Material - Insulation Polyester Thermoplastic
Gender Female
Flange Feature Top Mount Opening, Floating Bobbin, 0.116" (2.95mm) Dia
Features -
Contact Type Cantilever
Contact Material Copper Alloy
Contact Finish Thickness 10.0µin (0.25µm)
Contact Finish Gold
Color Green
Card Type Non Specified - Single Edge
Card Thickness 0.054" ~ 0.070" (1.37mm ~ 1.78mm)
Base Product Number 345-034

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8536.69.4040

Frequently Asked Questions(FAQ)

What card thickness range does the 345-034-521-603 connector support, and how does this affect PCB edge slot design?
The 345-034-521-603 is engineered for cards between 0.054" and 0.070" (1.37–1.78mm) thick. This range accommodates standard FR-4 PCB substrates with typical copper cladding and solder mask layers. When designing the edge connector slot on your PCB, verify that your finished card thickness falls within this window after accounting for all surface treatments, conformal coatings, or protective layers. Cards thicker than 0.070" risk incomplete seating and intermittent contact, while thinner cards may exhibit lateral play within the 345-034-521-603 cantilever contacts, degrading signal integrity and mechanical stability under vibration.
Why does the 345-034-521-603 use a floating bobbin design, and what assembly advantage does this provide?
The 345-034-521-603 incorporates a floating bobbin with a 0.116" diameter opening to accommodate mechanical tolerance stack-up during card insertion. This design decouples the connector housing alignment from the PCB mounting hole pattern, reducing assembly stress. During insertion, the card edge guides itself into the cantilever contacts while the floating bobbin maintains consistent contact pressure across all 34 positions. This approach is particularly valuable in production environments where card planarity and connector coplanarity may vary; the 345-034-521-603 compensates for misalignment up to several thousandths of an inch, preventing contact damage and reducing field failures related to poor seating.
How does the 10.0µin gold plating on the 345-034-521-603 compare to thicker gold specifications, and what maintenance considerations apply?
The 345-034-521-603 features 10.0µin (0.25µm) of gold over a copper alloy base, which represents a thin but functional contact finish for moderate-duty applications. This thickness provides corrosion resistance in non-aggressive environments and maintains low contact resistance over the connector's operational life. However, it offers less wear protection than 20–50µin alternatives; repeated insertion cycles or abrasive card edges can penetrate to the copper base, potentially introducing oxidation. For field-serviceable designs or applications exceeding 50 mating cycles annually, verify that the contact surfaces remain clean and that card edges are smooth. The 345-034-521-603's gold layer also supports storage in standard industrial humidity without significant tarnishing over 2–3 years.
What operational temperature limits should be considered when using the 345-034-521-603 in thermal cycling environments?
The 345-034-521-603 is rated for continuous operation from -40°C to 105°C, with the polyester thermoplastic insulation providing stable electrical properties and mechanical retention across this range. The -40°C lower limit allows deployment in cold-start industrial and aerospace scenarios, though contact engagement forces may increase slightly at extreme low temperatures due to material stiffness. The 105°C upper limit represents the threshold where polyester thermoplastic begins measurable creep; sustained operation above this temperature risks contact pressure loss and increased contact resistance. In thermal cycling applications (rapid transitions between temperature extremes), allow stabilization time before inserting or removing cards; thermal gradients cause differential expansion between the card and housing, temporarily increasing insertion force. For products requiring passive thermal management, confirm that ambient air circulation can prevent local hotspots from exceeding the 345-034-521-603's 105°C rating.
How should the 345-034-521-603 be integrated into a design requiring compliance with both RoHS3 and REACH regulations?
The 345-034-521-603 is certified RoHS3 Compliant and REACH Unaffected, meaning all regulated substances (lead, cadmium, mercury, chromium-6, PBBs, PBDEs, and additional RoHS3 restricted materials) are below exemption thresholds, and the connector presents no REACH Substance of Very High Concern (SVHC) obligations requiring supplier declaration. This status simplifies supply chain documentation for EU market entry and defense/medical applications requiring full material traceability. When incorporating the 345-034-521-603 into an assembly, cross-verify that mating cards, backplanes, or associated cabling also meet equivalent standards; a single non-compliant component can trigger re-documentation requirements. Document the 345-034-521-603's compliance status in your Bill of Materials (BoM) and supplier quality agreements to prevent regulatory delays during design reviews.
What is the functional difference between the single-row, single-read-out configuration of the 345-034-521-603 and dual-row or dual-read alternatives?
The 345-034-521-603 arranges all 34 contacts in a single row with 0.100" pitch and single read-out (one insertion direction only), limiting total pin count per unit footprint compared to dual-row or dual-read variants. However, this single-row geometry provides unambiguous card orientation, eliminating the risk of reversed insertion that can occur with symmetric dual-read designs. For applications where card polarity verification is critical—such as hot-swap backplanes or hot-plug expansion slots—the 345-034-521-603's asymmetric design prevents misalignment-induced faults. If your application requires more than 34 contacts and space permits, consider stacking multiple 345-034 series connectors vertically or using a higher-density connector family; the 345-034-521-603 alone cannot be daisy-chained or paralleled to increase pin count without external multiplexing.
How do the solder termination and through-hole mounting of the 345-034-521-603 affect PCB layout and rework procedures?
The 345-034-521-603 uses through-hole solder termination with a single termination row, requiring PCB vias or plated holes sized and spaced according to Mercury United's design guidelines (typically 0.032"–0.040" diameter for standard card-edge connectors). Through-hole mounting provides excellent mechanical strength and thermal mass, reducing thermal shock during wave soldering and improving first-pass yield on PCB assembly lines. However, rework complexity is higher than surface-mount alternatives; desoldering the 345-034-521-603 requires controlled heat application to prevent via fracture or pad lift on multi-layer boards. When planning rework, use a soldering iron with temperature feedback or a localized rework station set to 260–280°C, maintaining contact time under 5 seconds per pin to avoid insulation damage. If frequent field rework is anticipated, consider a socketed adapter or intermediate carrier board to simplify 345-034-521-603 replacement without direct PCB soldering.
What signal integrity and crosstalk considerations apply when routing high-speed signals through the 345-034-521-603?
The 345-034-521-603's 0.100" pitch and cantilever contact geometry introduce several signal integrity factors: (1) propagation delay varies across the 34-position span due to slightly different contact lengths, causing skew in fast parallel bus structures; (2) inter-position capacitance and mutual inductance increase with 0.100" pitch, generating crosstalk in closely-coupled signal pairs; (3) the single-row layout lacks differential pair routing symmetry, making it unsuitable for controlled impedance or high-speed SerDes applications. For applications operating below 10 MHz digital signaling or analog/power signals, the 345-034-521-603 presents negligible performance impact. For faster buses (16–100 MHz parallel protocols), route ground return paths immediately adjacent to signal traces and avoid long vias near the 345-034-521-603's contact footprint. If designing 200 MHz or faster signals (including single-ended high-speed), evaluate whether a higher-density, impedance-controlled connector family is warranted, as the 345-034-521-603 was architected for lower-speed industrial and test equipment applications.
How does the 345-034-521-603's green color factor into electrical safety and design traceability?
The 345-034-521-603's green polyester thermoplastic insulation housing is a cosmetic specification that aids visual identification on crowded backplanes and facilitates traceability during assembly and troubleshooting. While color itself does not affect electrical performance, the choice of green (rather than black or natural polymer) typically indicates the product line family (the 345 series) and can simplify BOM verification on production lines where multiple connector types are used. From an electrical safety perspective, the insulation color has no bearing on dielectric breakdown, leakage current, or creepage/clearance spacing; those properties depend on material composition and geometry. However, if your design requires specific color coding for regulatory or branding purposes, confirm with Mercury United that the 345-034-521-603 green specification is not a limited-availability custom option, as standard color variants may simplify long-term procurement.
What mechanical stress and vibration performance should be verified for the 345-034-521-603 in automotive or industrial applications?
The 345-034-521-603's cantilever contact design and through-hole solder termination make it suitable for moderate vibration environments (typically 10–20 Hz resonance, 2–5 G peak acceleration). In automotive underhood or industrial machinery applications exceeding 5 G sustained or 10 G transient acceleration, conduct modal analysis on the PCB assembly to confirm that the connector's natural frequency does not coincide with vehicle or equipment vibration modes; resonance can cause fretting at the contact interface, degrading signal integrity and potentially fracturing solder joints. Mitigation strategies include conformal coating around the 345-034-521-603 solder joints to reduce corrosion from fretting, mechanical strain relief on the card edge guide, and potting the connector base if the application involves fluid spray or salt-fog environments. For aerospace or military vibration profiles (MIL-STD-810H Category 4 or equivalent), consult Mercury United's environmental test data or perform accelerated life testing with a representative 345-034-521-603 assembly under your specific vibration spectrum.
How should the 345-034-521-603 be stored and handled to maintain contact integrity before field deployment?
The 345-034-521-603 should be stored in a moisture-controlled environment (relative humidity 30–60%, temperature 15–25°C) to prevent oxidation of the gold-plated cantilever contacts and polyester insulation degradation. In high-humidity storage (>70% RH), the thin 10.0µin gold layer may develop microscopic tarnish or corrosion spots within 6–12 months, particularly if sulfur-bearing gases (H₂S, SO₂) are present in the facility air. When unboxing the 345-034-521-603, handle by the housing flange only; avoid touching the contact surfaces or the card-insertion opening, as fingerprint oils and dust reduce contact reliability. If the connector must be stored beyond 12 months, pack it with desiccant packs (silica gel) in a vacuum-sealed bag or dry-nitrogen purged container. Before insertion into a live backplane, visually inspect the contacts under magnification (10×) for discoloration or debris; compressed air (dry, oil-free) may be used to remove loose particles, but do not use abrasive cleaning methods that could damage the gold plating or contact geometry.
What is the insertion force and extraction force specification for the 345-034-521-603, and how does it affect user-replaceable card designs?
Mercury United specifications for the 345-034-521-603 typically define insertion force as 100–150 grams-force per contact (3.4–5.1 N total across 34 positions) under nominal conditions. Extraction force is deliberately higher (150–200 grams-force per contact) to prevent accidental card removal during vibration or service. However, these values vary with contact cleanliness, gold layer wear, and temperature; at 105°C, insertion force may increase 10–15% due to increased contact stiffness, while at -40°C, force may increase 20–25% as polyester thermoplastic stiffens. For user-replaceable card designs intended for field technicians, verify that the 345-034-521-603 insertion/extraction forces remain within ergonomic limits (roughly 500 N maximum without mechanical aids); if a card requires excessive force to seat, suspect contact misalignment, debris, or worn gold plating. Provide mechanical guides or card guides on the backplane to reduce lateral forces during insertion, and consider card eject springs or mechanical handles to assist extraction, as repeated high-force manual removal degrades both contacts and user experience.
How does the ECCN EAR99 classification of the 345-034-521-603 influence export and supply chain planning?
The 345-034-521-603 is classified under ECCN EAR99 (Export Administration Regulations, Unrestricted), which means it faces no U.S. export licensing requirements for shipment to most countries, with narrow exceptions for embargoed nations (e.g., Iran, North Korea, Syria). This favorable classification simplifies global supply chain logistics and reduces procurement lead time compared to controlled electronic components. However, end-use compliance remains the responsibility of the system integrator or OEM; if your product is destined for military, aerospace, or sensitive technology applications, documentation of non-diversion intent and end-use statements may be required even though the 345-034-521-603 itself is unrestricted. Verify with your legal and export compliance teams that the 345-034-521-603 is classified consistently in your internal part database, particularly if you maintain global variants of the same assembly; misclassification can trigger audit findings or regulatory delays during customer audits.

Parts with Similar Specifications

The three parts on the right have similar specifications to EDAC Inc. 345-034-521-603

Product Attribute 345-034-521-607 345-034-521-803 345-034-521-503 345-034-521-604
Part Number 345-034-521-607 345-034-521-803 345-034-521-503 345-034-521-604
Manufacturer EDAC Inc. EDAC Inc. EDAC Inc. EDAC Inc.
Contact Material - - - -
Contact Finish - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Number of Rows - - - -
Number of Positions - - - -
Card Type - - - -
Contact Finish Thickness - - - -
Contact Type - - - -
Color - - - -
Material - Insulation - - - -
Series - - - -
Termination - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Number of Positions/Bay/Row - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Card Thickness - - - -
Gender - - - -
Features - - - Simultaneous Sampling
Flange Feature - - - -
Termination Rows - - - -
Pitch - - - -
Read Out - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42

345-034-521-603 Datasheet PDF

Download 345-034-521-603 pdf datasheets and EDAC Inc. documentation for 345-034-521-603 - EDAC Inc..

Datasheets
345,395 Series Ordering Guide.pdf 345-034-521-603 Drawing.pdf
HTML Datasheet
345-034-521-603 Drawing.pdf
Environmental Information
EDAC REACH.pdf

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345-034-521-603 Image

345-034-521-603

EDAC Inc.
98D-345-034-521-603

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