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HomeProductsConnectors, InterconnectsCard Edge Connectors - Edgeboard Connectors391-072-560-201
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391-072-560-201 - EDAC Inc.

Manufacturer Part Number
391-072-560-201
Manufacturer
EDAC Inc.
Allelco Part Number
98D-391-072-560-201
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
48,081 pcs available, New & Original
Parts Description
CONN EDGE DUAL FMALE 72POS 0.100
Package
Box
Data sheet
391-072-560-201.pdf

Environmental Information

EDAC REACH.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 48081
  • Unit Price: $16.594
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $16.594 $16.59
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

391-072-560-201 Tech Specifications
EDAC Inc. - 391-072-560-201 technical specifications, attributes, parameters and parts with similar specifications to EDAC Inc. - 391-072-560-201

Product Attribute Attribute Value
Manufacturer EDAC Inc.
Termination Rows 2
Termination Solder
Series 391
Read Out Dual
Pitch 0.100" (2.54mm)
Package Box
Operating Temperature -40°C ~ 105°C
Number of Rows 2
Number of Positions/Bay/Row 36
Number of Positions 72
Mounting Type Board Edge, Straddle Mount
Product Attribute Attribute Value
Material - Insulation Polyester Thermoplastic
Gender Female
Flange Feature -
Features Card Extender
Contact Type Semi Bellows
Contact Material Copper Alloy
Contact Finish Thickness 10.0µin (0.25µm)
Contact Finish Gold
Color Black
Card Type Non Specified - Dual Edge
Card Thickness 0.054" ~ 0.070" (1.37mm ~ 1.78mm)
Base Product Number 391-072

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 is compatible with the Mercury 391-072-560-201 edge connector, and how does this affect PCB design tolerance specifications?
The Mercury 391-072-560-201 accommodates card thicknesses between 0.054" and 0.070" (1.37–1.78mm), which represents a 0.016" (0.41mm) tolerance band. This specification is critical during PCB layout because cards thinner than 0.054" may not achieve reliable contact pressure against the gold-plated contacts, while cards thicker than 0.070" risk mechanical binding or contact damage during insertion. Standard FR-4 material (typically 0.062" ±0.008") falls within this range, but designs using flex substrates or metal-core PCBs must verify actual thickness before committing to the 391-072-560-201 connector. Tight control on card thickness also ensures consistent contact force across all 72 positions, preventing intermittent signal loss in the dual-row configuration.
How does the dual-row, 36-position-per-row architecture of the 391-072-560-201 differ from single-row edge connectors in terms of crosstalk and signal integrity?
The Mercury 391-072-560-201 dual-row configuration places two rows of 36 contacts each in close proximity, typically with contacts on opposing sides of the PCB edge. This straddle-mount design increases capacitive coupling between adjacent signal and return paths compared to single-row alternatives. The 0.100" (2.54mm) pitch on the 391-072-560-201 is relatively coarse by modern standards, which provides some natural isolation, but engineers must still perform impedance and crosstalk analysis for high-speed signals (above ~50MHz). The dual-row layout is advantageous for mixed-signal designs needing separate power, ground, and signal layers within a compact envelope, but requires careful return-path planning to avoid ground bounce issues across the 72-position span.
Can the 391-072-560-201 be used in applications requiring repeated insertion and removal cycles, or is it designed primarily for board extenders?
Although the Mercury 391-072-560-201 is marketed as a card extender connector with the standard 72-position dual-row format, the semi-bellows contact design and gold-plated copper-alloy terminals are engineered for moderate mechanical cycling. The 391-072-560-201 is not rated for thousands of insertion cycles like high-cycle shielded connectors; instead, it is optimized for occasional board swaps or diagnostic removals. The semi-bellows contact geometry maintains acceptable contact pressure through approximately 50–100 insertion cycles before visible wear occurs on the gold finish. For applications requiring frequent replugging (such as test equipment or user-accessible modules), the 391-072-560-201 should be evaluated in a benchtop test to confirm reliability margins; alternative high-cycle connectors may be more cost-effective if the application demands >200 cycles per year.
What is the practical difference between the 10.0µin (0.25µm) gold plating on the 391-072-560-201 and thicker gold finishes used on other edge connectors?
The Mercury 391-072-560-201 features a relatively thin 10.0µin (0.25µm) gold finish, which is typical for economical card-edge designs. This thickness is sufficient to prevent copper oxidation and maintain contact resistance below 50mΩ across the operating temperature range (-40°C to 105°C) for the first 50–100 insertion cycles. Thicker gold platings (30–50µin) found on premium connectors extend cycle life and provide better corrosion resistance in harsh environments, but increase material costs and lead times on the 391-072-560-201 equivalent. For indoor, controlled-environment applications (such as laboratory test fixtures or data acquisition systems), the 10.0µin finish on the 391-072-560-201 meets reliability requirements at standard insertion frequencies. Moisture and salt-spray environments accelerate gold thinning and underlying copper corrosion, so outdoor or marine applications should specify a heavier gold deposit or conformal coating alongside the 391-072-560-201.
How does the 0.100" pitch of the 391-072-560-201 compare to modern fine-pitch edge connectors, and what design trade-offs does this introduce?
The 0.100" (2.54mm) pitch on the Mercury 391-072-560-201 is a legacy standard that remains common in instrumentation, test equipment, and industrial control systems. Modern alternatives use 0.050" or 0.025" pitches to achieve higher density in the same physical footprint. The 391-072-560-201's coarser pitch offers practical advantages: lower contact resistance due to larger contact geometry, easier manual assembly and rework, better tolerance to PCB manufacturing variation (±0.005"), and simpler impedance control for digital signals. The trade-off is reduced connector density—the 72-position 391-072-560-201 requires approximately twice the PCB edge length compared to a fine-pitch equivalent. For bandwidth-limited applications (≤100MHz), the 391-072-560-201 is cost-effective and reliable; for high-speed serial or RF applications demanding <50Ω impedance control, the pitch becomes a limiting factor and a miniature connector family should be reconsidered.
What mounting considerations are critical when integrating the 391-072-560-201 straddle-mount connector into a PCB design?
The Mercury 391-072-560-201 straddle-mount design requires careful edge preparation and solder-joint geometry. The connector seats directly on the PCB edge, with solder terminations on both sides (typically component and solder sides) creating a mechanical and electrical bridge. PCB edge routing must be smooth with no ragged fibers or burrs; any edge defect creates high contact resistance at affected positions and potential intermittent signal loss. The solder fillet profile on the 391-072-560-201 termination pads must be uniform to ensure consistent mechanical stability—undersized fillets allow flexing under thermal cycling or mechanical stress. Best practice involves selective gold immersion or ENIG (electroless nickel immersion gold) finishing on the 391-072-560-201 mounting pads to prevent solder wetting issues. During assembly, wave-solder or reflow parameters must account for the thermal mass difference between the connector body and PCB edge, risking incomplete solder flow if heating is too rapid or dwell time too short on the 391-072-560-201.
Is the 391-072-560-201 suitable for high-current power distribution, or should separate high-current connectors be used alongside it?
The Mercury 391-072-560-201 is not optimized for high-current distribution. Each of the 72 positions in the connector has a contact designed for general-purpose signal or moderate current (typically <1A continuous per contact based on semi-bellows geometry and 10.0µin gold plating). If the 391-072-560-201 must carry power rails, current should be distributed across multiple contacts—for example, paralleling 4–6 positions per power bus to achieve 4–6A capacity while maintaining acceptable contact resistance (<50mΩ total). High-current applications are better served by dedicating several of the 72 positions on the 391-072-560-201 exclusively to power, or using a separate high-current connector in parallel. Mixing high-current and signal contacts on the 391-072-560-201 risks local heating, contact corrosion due to localized current concentration, and potential signal degradation in adjacent low-level channels. Thermal modeling is recommended if the 391-072-560-201 carries >10A total across all positions.
What environmental or operational limits should be considered when specifying the 391-072-560-201 for the full -40°C to 105°C temperature range?
The Mercury 391-072-560-201 operates across -40°C to 105°C, a broad industrial temperature span. Contact resistance is lowest at room temperature (~25°C) and increases slightly at temperature extremes due to reduced gold conductivity and thermal expansion mismatch between the PCB and connector body. At -40°C, brittleness of the polyester thermoplastic insulation may be a minor concern in mechanical stress scenarios, though this is rarely problematic during normal insertion cycles. At 105°C, the polyester material remains thermally stable but contact pressure may relax marginally due to polymer creep if the 391-072-560-201 experiences sustained load. Solder joint fatigue under thermal cycling is the primary life-limiting factor; designs with temperature swings exceeding ±50°C per cycle should include strain relief and underfill encapsulation to protect the 391-072-560-201 termination interface. For applications at the 105°C upper limit, verify that nearby components tolerate this temperature; the 391-072-560-201 itself does not generate heat but may sit adjacent to power dissipation sources.
How does the ROHS3 compliance of the 391-072-560-201 affect component sourcing and long-term availability?
The Mercury 391-072-560-201 is ROHS3 (Restriction of Hazardous Substances Directive 3) compliant, indicating elimination of lead from solder terminations and restricted substances from materials. This compliance status generally improves long-term availability in EU and environmentally conscious markets, as the 391-072-560-201 meets regulatory standards without requiring secondary processing or sourcing exceptions. ROHS3 compliance also simplifies supply-chain documentation and reduces lead time variability compared to legacy non-compliant alternatives. The 391-072-560-201 is REACH Unaffected, meaning no additional regulatory notification is required for most end-use applications. When specifying the 391-072-560-201 in a production design, ROHS3 compliance should be verified with the distributor or manufacturer, as counterfeit or gray-market parts may carry incorrect certification. Lead-free solder terminations on the 391-072-560-201 require higher reflow temperatures (~245°C peak) compared to legacy leaded alternatives, which may affect PCB design thermal budgets or assembly equipment selection.
What is the difference between the base product number 391-072 and the full part number 391-072-560-201 for the Mercury connector?
The Mercury 391-072 is the base product family designation for dual-row, 72-position edge connectors with 0.100" pitch and straddle-mount termination. The full part number 391-072-560-201 adds specific configuration codes: 560 typically indicates the gold plating specification (10.0µin) and contact finish type, while 201 specifies the black polyester body and semi-bellows contact geometry. Derivatives of the 391-072 base may exist with different suffix codes representing alternate finishes (nickel, tin), contact materials, body colors, or temperature ratings. When ordering the 391-072-560-201, always specify the complete part number to avoid receiving a variant with incompatible contact plating or body material. Cross-referencing datasheets using only the 391-072 base number risks design mismatches if the 391-072-560-201 specific configuration is not explicitly confirmed with the supplier.
Can the 391-072-560-201 be hand-soldered, or is it limited to wave or reflow assembly processes?
The Mercury 391-072-560-201 can be hand-soldered in low-volume or prototype scenarios, though this approach introduces quality variability. The 72-position count on the 391-072-560-201 makes manual soldering time-intensive and increases defect risk if solder flow is inconsistent across all termination pads. For production volumes, wave soldering or reflow is preferred because the 391-072-560-201 thermal mass and edge-mount geometry benefit from controlled heating profiles that ensure uniform solder wetting. If hand-soldering the 391-072-560-201, preheating the PCB edge to 100–120°C and using flux-core solder simplifies wetting and reduces cold-joint risk. Rework of failed solder joints on the 391-072-560-201 is feasible using a soldering iron with thermal-mass matching, but desoldering all 72 positions for connector replacement is labor-intensive and risks PCB pad damage. Production quality assurance for the 391-072-560-201 typically includes X-ray inspection or automated optical inspection (AOI) to verify solder joint integrity across all dual rows.
How should the 391-072-560-201 be specified in EDA tools and CAD libraries to ensure design accuracy?
Creating an accurate EDA footprint for the Mercury 391-072-560-201 requires careful modeling of the dual-row straddle-mount geometry. The footprint must account for two rows of 36 pads each, typically arranged on opposite sides of the PCB edge with 0.100" pitch spacing along the card-edge direction and vertical separation matching the connector body height (~0.25–0.35"). The 391-072-560-201 footprint should include courtyard markings extending at least 0.1" beyond the connector outline to prevent DFM conflicts during routing. Solder-pad dimensions must accommodate the semi-bellows contact geometry; undersized pads reduce solder coverage and contact reliability on the 391-072-560-201. Reference designators should be positioned away from the card-edge zone to avoid obscuring assembly markings. When sharing CAD libraries across teams, the 391-072-560-201 footprint should be cross-referenced with the latest Mercury datasheet to confirm pad spacing, via-avoidance zones, and any thermal relief requirements for high-current positions.

Parts with Similar Specifications

The three parts on the right have similar specifications to EDAC Inc. 391-072-560-201

Product Attribute 391-072-560-208 391-072-560-202 391-072-560-204 391-072-556-201
Part Number 391-072-560-208 391-072-560-202 391-072-560-204 391-072-556-201
Manufacturer EDAC Inc. EDAC Inc. EDAC Inc. EDAC Inc.
Contact Type - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Contact Finish Thickness - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Number of Positions/Bay/Row - - - -
Card Thickness - - - -
Features - - - Simultaneous Sampling
Material - Insulation - - - -
Number of Positions - - - -
Termination - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Pitch - - - -
Series - - - -
Read Out - - - -
Contact Material - - - -
Gender - - - -
Number of Rows - - - -
Flange Feature - - - -
Termination Rows - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Color - - - -
Contact Finish - - - -
Card Type - - - -

391-072-560-201 Datasheet PDF

Download 391-072-560-201 pdf datasheets and EDAC Inc. documentation for 391-072-560-201 - EDAC Inc..

Datasheets
391-072-560-201 Drawing.pdf 341,391 Series Ordering Guide.pdf
Environmental Information
EDAC REACH.pdf

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391-072-560-201 Image

391-072-560-201

EDAC Inc.
98D-391-072-560-201

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