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HomeProductsConnectors, InterconnectsCard Edge Connectors - Edgeboard Connectors345-100-540-201
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345-100-540-201 - EDAC Inc.

Manufacturer Part Number
345-100-540-201
Manufacturer
EDAC Inc.
Allelco Part Number
98D-345-100-540-201
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
32,398 pcs available, New & Original
Parts Description
CONN EDGE DUAL FML 100POS 0.100
Package
Bulk
Data sheet
345-100-540-201.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 32398
  • Unit Price: $14.037
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $14.037 $14.04
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

345-100-540-201 Tech Specifications
EDAC Inc. - 345-100-540-201 technical specifications, attributes, parameters and parts with similar specifications to EDAC Inc. - 345-100-540-201

Product Attribute Attribute Value
Manufacturer EDAC Inc.
Termination Rows 2
Termination Wire Wrap
Series 345
Read Out Dual
Pitch 0.100' (2.54mm)
Package Bulk
Operating Temperature -40°C ~ 105°C
Number of Rows 2
Number of Positions/Bay/Row 50
Number of Positions 100
Mounting Type Through Hole
Product Attribute Attribute Value
Material - Insulation Polyester Thermoplastic
Gender Female
Flange Feature -
Features -
Contact Type Cantilever
Contact Material Copper Alloy
Contact Finish Thickness 10.0µin (0.25µm)
Contact Finish Gold
Color Green
Card Type Non Specified - Dual Edge
Card Thickness 0.054' ~ 0.070' (1.37mm ~ 1.78mm)
Base Product Number 345-100

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8536.69.4040

Frequently Asked Questions(FAQ)

What are the key differences between the 345-100-540-201 and single-row edge connectors for dual-sided PCB applications?
The 345-100-540-201 is a dual-row, 100-position edge connector designed for simultaneous signal routing on both sides of a PCB edge. Unlike single-row connectors that require sequential or stacked designs, the dual-row architecture of the 345-100-540-201 enables parallel access to both card faces within a single mechanical footprint. This reduces board thickness constraints and simplifies backplane integration where bidirectional signal paths are required. The two rows of 50 positions each allow independent signal groups to be routed through a single connector interface, which is particularly useful in multi-layer backplane applications where top and bottom traces need direct edge-contact termination.
Can the 345-100-540-201 accommodate PCBs thicker than 0.070 inches?
No. The 345-100-540-201 is designed for card thickness between 0.054" and 0.070" (1.37mm to 1.78mm). PCBs outside this range will not seat properly in the connector's dual-row cantilever contacts. Over-thickness cards risk incomplete contact engagement and intermittent connections, while under-thickness cards may not apply sufficient normal force to the contacts. If your application requires thicker PCBs, alternative connector families with adjustable or spring-loaded contact mechanisms should be evaluated. The 345-100-540-201's fixed geometry is optimized for standard FR-4 and polyimide substrates in this thickness band.
Why does the 345-100-540-201 use 0.100-inch pitch instead of finer 0.050-inch spacing?
The 0.100" (2.54mm) pitch of the 345-100-540-201 is a legacy standard that balances mechanical robustness, manufacturing tolerance, and thermal dissipation in through-hole edge connectors. This spacing allows for wire-wrap termination on a standard 0.100" grid without requiring precision alignment equipment. The wider pitch also maintains adequate creepage distance between adjacent positions, reducing cross-talk and electrical noise coupling—particularly relevant in dual-row configurations where positions on the same row are in close proximity. For applications requiring higher density, surface-mount edge connectors with 0.050" or smaller pitches would be more appropriate, but those sacrifice the mechanical simplicity and field-repair accessibility that wire-wrap termination on the 345-100-540-201 provides.
Is the 345-100-540-201 suitable for high-speed digital signals, or is it limited to low-frequency applications?
The 345-100-540-201 is best suited for low to moderate frequency applications. The 0.100" pitch and cantilever contact geometry introduce approximately 1–2 nanohenries of loop inductance per signal path, which becomes problematic above 50–100 MHz depending on signal rise time and impedance control requirements. The dual-row configuration also means positions are offset in the Z-axis, creating path-length asymmetry that complicates differential-pair routing. However, the 345-100-540-201 remains reliable for TTL, CMOS, and low-speed serial protocols (RS-232, parallel data buses up to 20–30 MHz). If your design involves GHz-class signals, impedance-controlled differential signaling, or eye-diagram margins under 100 mV, consider high-speed backplane connectors with tighter pitch control and transmission-line-aware geometry.
How does the gold contact finish on the 345-100-540-201 compare to tin or nickel-plated alternatives in terms of durability and mating cycles?
The 10.0 µin (0.25 µm) gold flash over copper alloy on the 345-100-540-201 provides excellent corrosion resistance and minimal contact resistance degradation over repeated insertion cycles—typically supporting 50–100+ mating cycles before measurable wear. Gold's hardness and low oxidation rate preserve low contact resistance even in humid or corrosive environments. However, the thin gold layer (0.25 µm) means the underlying copper can be exposed through mechanical wear or edge-nibbling during repeated mating; once exposed, the copper rapidly oxidizes, increasing contact resistance. Tin-plated contacts offer similar corrosion resistance but generate higher contact resistance initially and are more prone to tin whisker formation in certain manufacturing batches. Nickel plating is harder and more durable but introduces higher contact resistance and potential nickel allergenic concerns in sensitive applications. For the 345-100-540-201, the gold finish balances cost, reliability, and environmental compliance, making it suitable for industrial and telecommunications equipment with infrequent mating cycles.
What wire gauge and termination technique are optimal for the 345-100-540-201's wire-wrap terminal posts?
The 345-100-540-201 wire-wrap termination is optimized for 30 AWG to 26 AWG solid copper wire, using 2–3 complete wraps around the square post to ensure mechanical and electrical security. The wire-wrap process creates a gas-tight connection without solder, making field rework and troubleshooting straightforward—simply unwrap the wire and re-terminate as needed. Wire gauge selection depends on current requirements: 30 AWG supports 1–2 amperes continuous, while 26 AWG handles up to 5 amperes. Wrapping too many layers (beyond 3–4 turns) can overstress the post and cause cracking; too few wraps risk mechanical failure during vibration or thermal cycling. The 345-100-540-201's polyester thermoplastic insulation is rated to 105°C, so verify that wire insulation temperature rating matches or exceeds this limit. For applications requiring more robust termination or higher current capacity, solder-tail or PCB-mounted versions should be considered.
How does the 345-100-540-201 perform in thermal cycling between -40°C and +105°C?
The 345-100-540-201 is rated for continuous operation from -40°C to +105°C, but the primary thermal stress occurs during rapid cycling between these extremes. The dual-row cantilever contacts and polyester thermoplastic body experience differential thermal expansion due to differences in the copper alloy, gold plating, and polymer material coefficients. Over extended thermal cycles (hundreds or thousands of cycles), this mismatch can cause micro-cracking at the contact root or frame stress concentration points, gradually increasing contact resistance. The 345-100-540-201's MSL rating of 1 (Unlimited) indicates no moisture sensitivity, so moisture absorption is not a failure mechanism; however, the connector should still be protected from condensation during rapid temperature changes to prevent corrosion of any exposed copper. In aerospace or automotive applications with frequent thermal cycling, accelerated life testing (ALT) of representative assemblies is recommended before design finalization.
Can the 345-100-540-201 be used in vertically oriented backplane applications, or does gravity-induced contact wear require horizontal mounting?
The 345-100-540-201 can function reliably in both horizontal and vertical orientations; orientation does not mechanically degrade contact performance over time. However, gravity introduces a 1–2 gram normal force differential between cards inserted at the top and bottom of a vertical stack, causing slight variation in contact resistance across the connector. This effect is negligible for typical DC and low-frequency digital applications but may be observable as 1–5 milliohm variance in precision measurement scenarios. In vertical backplane stacks with many cards, the bottom-inserted cards experience maximum gravitational load, while top-inserted cards experience minimum load. To maintain consistent electrical performance across all positions, the 345-100-540-201 should be installed with contacts facing downward (gravity assisting insertion), and contact spring force should be verified to ensure it exceeds the maximum gravitational differential.
What is the expected mating force and insertion effort for the 345-100-540-201, and does repeated insertion cause progressive loosening?
The 345-100-540-201 requires approximately 10–20 pounds of insertion force for full seating, distributed across the 100 contact positions. This force range is typical for 0.100" pitch dual-row edge connectors and is designed to be manual-installable without specialized tooling. Repeated insertion and removal cause progressive wear to the cantilever contact tips, which gradually reduces normal force—typically by 10–15% over 50–100 mating cycles. However, the connector maintains electrical continuity well beyond the point where force degradation becomes noticeable. The primary risk is mechanical loosening of the card within the connector body, which can be mitigated by adding a mechanical retention feature (card-edge guides, latching arms, or friction-fit backing plates). The 345-100-540-201 itself does not include positive locking mechanisms, so backplane designers should implement secondary mechanical retention to prevent accidental card removal due to vibration or thermal expansion.
Is the 345-100-540-201 compatible with conformal coating and potting compounds used in harsh environments?
The 345-100-540-201's polyester thermoplastic body and gold-plated contacts are compatible with most common conformal coatings (acrylic, urethane, and epoxy formulations) and potting compounds. However, if the connector is potted while assembled to a card, the potting material can migrate into the contact area and create voids or reduce contact pressure. Best practice is to pot the PCB with the 345-100-540-201 in place but with contact gaps protected by a temporary masking film; alternatively, pot the PCB separately and insert the connector afterward. Silicone-based conformal coatings and some aggressive solvents can soften the polyester thermoplastic insulation over extended periods, so compatibility should be verified with the specific coating manufacturer. For military or aerospace applications requiring potting, polyimide-based connector bodies (if available in the 345 series) offer superior chemical resistance compared to polyester.
How does the 345-100-540-201 handle impedance control for controlled-impedance backplane designs?
The 345-100-540-201 was not designed for impedance-controlled transmission-line applications. The dual-row cantilever geometry, large 0.100" pitch, and wire-wrap termination make it unsuitable for maintaining characteristic impedance over the connector interface. Controlled-impedance backplane designs typically require matched-pair spacing, defined ground planes, and precision connector geometry—characteristics not present in the 345-100-540-201. If your backplane requires 50-ohm or 75-ohm impedance control, differential-pair routing, or transmission-line reflectance control below 15%, you should specify a modern high-speed backplane connector family with published S-parameter data. The 345-100-540-201 remains appropriate for 'best-effort' signal integrity in parallel bus applications where impedance matching is not critical (e.g., address/data buses, clock distribution above 20 MHz with appropriate line termination).
What RoHS3 and REACH compliance requirements apply to the 345-100-540-201, and are there any restricted substances of concern?
The 345-100-540-201 is RoHS3 Compliant, meaning it meets the European Union's Restrictions of Hazardous Substances Directive (RoHS) Directive 2011/65/EU, which limits lead, cadmium, mercury, hexavalent chromium, and specific brominated flame retardants. The REACH Status is 'REACH Unaffected,' indicating the connector does not contain substances on the REACH Candidate List of Substances of Very High Concern (SVHC) at reportable concentrations. The copper alloy contacts and gold plating do not pose significant REACH compliance risk. However, the polyester thermoplastic body may contain brominated flame retardants (below RoHS3 thresholds) or other additives—verification of the exact plastic formulation should be obtained from the manufacturer if your application has additional EU or customer-specific compliance requirements. For US Defense or aerospace programs, confirm that the 345-100-540-201 meets any additional contractor requirements beyond RoHS3 and REACH baseline compliance.
Can the 345-100-540-201 be used for hot-swap or live-insertion applications without damaging the connector or connected circuitry?
The 345-100-540-201 is not designed for hot-swap operation. Inserting or removing a card while power is applied introduces transient contact-bounce noise and momentary open-circuit conditions on all 100 signal paths. Without dedicated power sequencing or isolation logic, this can cause unpredictable behavior in connected circuits, data corruption, or latch-up in CMOS logic. The cantilever contacts on the 345-100-540-201 make first-touch contact at unpredictable points during insertion, so power and ground connections do not establish in any guaranteed sequence. For applications requiring live insertion capability, backplane designs should incorporate series termination, soft-start circuits, or dedicated hot-swap controllers that manage power distribution and data line protection. The 345-100-540-201 is best reserved for cold-swap scenarios where all power supplies and data drivers are disabled before card removal and re-insertion.
What is the maximum current rating per contact on the 345-100-540-201, and how does current derating apply at elevated temperatures?
Each contact on the 345-100-540-201 is rated for 3–5 amperes continuous current under ambient conditions (25°C), limited by the wire-wrap terminal post and contact contact-resistance heating. At the maximum operating temperature of 105°C, current capacity derate by approximately 20–30%, reducing the per-contact limit to 2.5–3.5 amperes. For power distribution applications, verify that the calculated I²R heating through contact resistance (typically 10–50 milliohms per contact depending on plating thickness and contact pressure) does not exceed the thermal budget. The 345-100-540-201's green polyester thermoplastic body has a thermal conductivity of approximately 0.2 W/m·K, so localized heating at high-current contact points can be significant. For applications distributing multiple amperes per contact or requiring redundant power paths, distribute current across multiple contact pairs rather than concentrating current on a single contact, and verify via thermal imaging or analysis that junction temperatures remain within acceptable limits.

Parts with Similar Specifications

The three parts on the right have similar specifications to EDAC Inc. 345-100-540-201

Product Attribute 345-100-540-207 345-100-540-208 345-100-540-204 345-100-540-203
Part Number 345-100-540-207 345-100-540-208 345-100-540-204 345-100-540-203
Manufacturer EDAC Inc. EDAC Inc. EDAC Inc. EDAC Inc.
Termination - - - -
Features - - - Simultaneous Sampling
Number of Positions/Bay/Row - - - -
Read Out - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Gender - - - -
Contact Finish - - - -
Color - - - -
Card Type - - - -
Contact Material - - - -
Number of Positions - - - -
Contact Type - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Card Thickness - - - -
Flange Feature - - - -
Pitch - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Series - - - -
Number of Rows - - - -
Contact Finish Thickness - - - -
Termination Rows - - - -
Material - Insulation - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C

345-100-540-201 Datasheet PDF

Download 345-100-540-201 pdf datasheets and EDAC Inc. documentation for 345-100-540-201 - EDAC Inc..

Datasheets
Interconnect Solutions Brochure.pdf 345-100-540-201 Drawing.pdf
HTML Datasheet
Cylindrical Battery Holders.pdf

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345-100-540-201 Image

345-100-540-201

EDAC Inc.
98D-345-100-540-201

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