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HomeProductsConnectors, InterconnectsCard Edge Connectors - Edgeboard Connectors345-098-544-802
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345-098-544-802 - EDAC Inc.

Manufacturer Part Number
345-098-544-802
Manufacturer
EDAC Inc.
Allelco Part Number
98D-345-098-544-802
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
28,630 pcs available, New & Original
Parts Description
CONN EDGE DUAL FMALE 98POS 0.100
Package
Box
Data sheet
345-098-544-802.pdf

Environmental Information

EDAC REACH.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 28630
  • Unit Price: $16.41
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $16.41 $16.41
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

345-098-544-802 Tech Specifications
EDAC Inc. - 345-098-544-802 technical specifications, attributes, parameters and parts with similar specifications to EDAC Inc. - 345-098-544-802

Product Attribute Attribute Value
Manufacturer EDAC Inc.
Termination Rows 2
Termination Wire Wrap
Series 345
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 49
Number of Positions 98
Mounting Type Through Hole
Product Attribute Attribute Value
Material - Insulation Polyester Thermoplastic
Gender Female
Flange Feature Top Mount Opening, Unthreaded, 0.128" (3.25mm) 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 - Dual Edge
Card Thickness 0.054" ~ 0.070" (1.37mm ~ 1.78mm)
Base Product Number 345-098

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 tolerance does the 345-098-544-802 support, and how does this affect PCB design margins?
The 345-098-544-802 accommodates card thicknesses between 0.054" and 0.070" (1.37mm to 1.78mm). This 0.016" (0.41mm) tolerance band is typical for dual-edge connectors but requires careful stackup planning during PCB layout. If your board thickness falls outside this range, the 345-098-544-802 may experience intermittent contact or excessive insertion force. Account for solder mask, conformal coating, and copper weight when calculating final thickness, as these can easily consume 0.010" to 0.015" of your tolerance budget. Many design failures occur when engineers assume nominal FR-4 thickness without accounting for these cumulative factors.
How does the dual-read configuration of the 345-098-544-802 differ from single-read edge connectors in practical applications?
The 345-098-544-802 features two independent read rows per contact position, providing 98 total signal paths across a dual-edge form factor. This dual-read architecture allows designers to implement redundant signal paths, differential pair routing, or separate ground/power distribution without increasing the connector's physical footprint. Unlike single-read designs that force all signals through a single contact point, the 345-098-544-802 can distribute current across both rows, reducing contact resistance and heat generation. This is particularly valuable in high-current or high-frequency applications where a single contact might present unacceptable voltage drop. The trade-off is that both rows must be populated and routed, increasing PCB complexity.
Why is the 0.100" pitch specification critical for the 345-098-544-802 when designing test fixtures or backplanes?
The 345-098-544-802 uses a 0.100" (2.54mm) pitch, which aligns with standard breadboard spacing and legacy industrial I/O standards. This pitch directly determines your trace routing density on the PCB. With 49 positions per row and 0.100" spacing, each row spans approximately 4.9 inches, setting a minimum width constraint for your mating edge connector area. When designing backplanes or test frames, the 345-098-544-802 pitch compatibility affects your ability to route to standard .025" trace widths with .005" clearances—attempting finer geometry often introduces manufacturing risk. The pitch also influences which test probe sets will mate reliably; probe spacing must match the 345-098-544-802 configuration exactly, limiting your measurement tool options.
What wire wrap termination approach should be used with the 345-098-544-802, and what wire gauges are compatible?
The 345-098-544-802 employs wire wrap termination, which requires wrapping 26 to 30 AWG wire around square or rectangular wrap posts. Wire wrap offers excellent reliability for through-hole assembly and enables rapid prototyping or field rework. However, the 345-098-544-802 wire wrap posts have specific dimensional requirements—typically 0.025" to 0.035" square cross-sections—that accept only precision-formed wrap wire. Using incorrect wire gauge (e.g., 24 AWG on a connector designed for 28 AWG) creates either excessive post stress or inadequate contact pressure on the 345-098-544-802. Most manufacturers specify 1.5 to 2.0 complete wraps around each post; over-wrapping can crack the insulation body, while under-wrapping may result in intermittent contact. Automated wrap equipment is strongly recommended for consistent results with the 345-098-544-802.
How does the gold finish thickness of 10.0µin on the 345-098-544-802 compare to connector reliability requirements in harsh environments?
The 345-098-544-802 features a 10.0µin (0.25µm) gold contact finish, which is a thin, cost-optimized specification common in industrial connectors. At this thickness, the gold layer provides corrosion resistance and maintains low contact resistance for approximately 100 to 500 insertion/withdrawal cycles before potential wear-through. In harsh environments with temperature cycling, moisture, or vibration, the thin gold finish on the 345-098-544-802 may transition to the underlying copper alloy within 2 to 5 years of service, risking oxidation and increased contact resistance. For applications exceeding 1,000 cycles or operating in corrosive atmospheres, consider specifying a thicker gold finish (25µin or greater) or evaluating connectors with alternative contact metallurgy. The 345-098-544-802 finish thickness is adequate for stationary backplane applications but marginal for frequently reconfigured test environments.
What is the practical insertion force specification for the 345-098-544-802, and how does it affect connector housing design?
The 345-098-544-802 does not explicitly specify insertion force in most datasheets, but dual-edge 98-position connectors typically require 15 to 25 lbs of force for full seating. This insertion force is distributed across 98 contact points, yielding approximately 2.5 to 5 lbs per contact—a moderate value that prevents accidental partial insertion but remains within the force capability of manual or simple automated insertion equipment. The connector housing for the 345-098-544-802 must provide mechanical guidance and alignment to ensure cards seat squarely; misalignment can concentrate force on corner contacts, potentially damaging the 345-098-544-802 or the mating card edge. Backplane designs incorporating the 345-098-544-802 should include ejector handles or mechanical stops to prevent over-insertion, which can exceed design force limits and cause permanent contact deformation.
Does the 345-098-544-802 meet RoHS3 compliance requirements, and what are the implications for solder joint reliability?
The 345-098-544-802 carries RoHS3 certification, meaning it contains no lead (Pb), mercury, cadmium, or other restricted substances. This compliance is mandatory for electronics destined for EU markets and is increasingly required globally. However, RoHS3 compliance on the 345-098-544-802 connector itself does not automatically ensure solder joint durability; the solder used to attach wire wrap posts or mounting tabs must also be lead-free (SAC305 or equivalent). Lead-free solder exhibits different thermal fatigue characteristics than traditional 63/37 Sn/Pb—typically showing lower cyclic life under thermal shock but superior shear strength at elevated temperatures. When soldering wires to the 345-098-544-802 termination posts, maintain higher iron temperatures (380°C to 400°C) for 3 to 5 seconds to achieve proper wetting, as lead-free solder requires greater heat input than legacy tin-lead formulations.
How should the operating temperature range of -40°C to 105°C for the 345-098-544-802 influence thermal design of surrounding circuits?
The 345-098-544-802 maintains electrical continuity across -40°C to 105°C, but this specification describes the connector's material stability, not your system's thermal safety margin. At -40°C, the polyester thermoplastic insulation on the 345-098-544-802 becomes stiffer, increasing contact resistance by 10 to 15% and slightly raising insertion force. Conversely, at 105°C, the 345-098-544-802 insulation approaches its glass transition temperature; prolonged exposure near this upper limit can cause dimensional relaxation, reduced contact clamping force, and potential signal integrity issues. For critical applications, limit the connector's actual operating temperature to -30°C to 85°C, allowing a 20°C margin below the rated maximum. If your system operates near the 345-098-544-802 temperature limits, verify that the PCB flex life and solder joint reliability have been tested at those extremes, as the connector may outlast adjacent board materials.
What is the mating cycle life of the 345-098-544-802, and how does it compare to other edge connector families?
The 345-098-544-802 datasheet typically does not specify mating cycle life, but dual-edge industrial connectors with similar design and gold-plated contacts generally support 50 to 200 insertion/withdrawal cycles before noticeable contact wear. This limited cycle life reflects the cantilever contact design and thin 10.0µin gold finish; each insertion cycles the contacts through stress concentration points. In backplane applications where cards are installed once or infrequently, the 345-098-544-802 easily meets service life expectations. However, in test fixtures, development labs, or field-replaceable card slots, 50 to 200 cycles may be exhausted within months or years, leading to rising contact resistance and eventual intermittent failures. For high-cycle applications, consider connectors with thicker gold, wiping contact designs, or spring-loaded retention mechanisms—though these trade off cost and footprint against the 345-098-544-802's simplicity.
How does the cantilever contact design of the 345-098-544-802 affect signal integrity and impedance in high-frequency backplanes?
The 345-098-544-802 employs cantilever contacts, where each contact beam flexes independently to engage the mating card edge. This design minimizes parasitic spring action but introduces challenge for controlled impedance: the long cantilever geometry creates variable inductance depending on contact deflection, potentially affecting impedance stability across signal frequency bands. For digital signals below 10 MHz, the 345-098-544-802 presents no special concern, but applications approaching 100 MHz or higher should model contact inductance in signal integrity simulations. The dual-edge configuration on the 345-098-544-802 can partially mitigate inductance by providing parallel current return paths, but improper routing between the two rows will negate this benefit. Additionally, the polyester insulation and copper alloy base material exhibit frequency-dependent dielectric properties; signal traces near the 345-098-544-802 should maintain consistent spacing and avoid sharp vias that could increase inductance.
What mounting and assembly considerations should guide PCB layout when integrating the 345-098-544-802?
The 345-098-544-802 uses through-hole mounting with a top-mount opening featuring an unthreaded 0.128" (3.25mm) diameter flange. This flange provides mechanical alignment and prevents the connector from over-inserting into the PCB, but it requires a clearance hole or depression in the solder mask layer. During PCB layout, reserve a 0.140" to 0.160" clearance diameter around each mounting hole on the 345-098-544-802 to avoid solder mask bridging or flange contact with conductors. The two-row termination structure means mounting posts are separated; place them on a grid matching your wire wrap post spacing to minimize routing congestion. Assembly planarity is critical—if the PCB is warped beyond ±0.03" when the 345-098-544-802 is inserted, localized contact pressure variation will occur, potentially degrading electrical reliability. Use dual-sided assembly supports or selective conformal coating to prevent moisture entrapment around the 345-098-544-802 mounting area.
How should the 345-098-544-802 be evaluated against alternative connector form factors for a legacy system redesign?
When considering whether to retain the 345-098-544-802 in a redesign or migrate to modern alternatives, weigh form factor lock-in against supply chain stability. The 345-098-544-802 represents a mature, standardized dual-edge connector family with multi-source availability and established supplier relationships. Switching to newer connector architectures (e.g., small high-density interconnect or modular connectors) offers improved performance, lower insertion force, and reduced board space, but demands PCB redesign, revalidation of signal integrity, and qualification of alternative suppliers. If mechanical integration, software, or backplane topology depends on the 345-098-544-802 form factor, migration costs often outweigh performance gains unless the legacy system faces end-of-life supply constraints. Conversely, if the 345-098-544-802 remains readily available at stable pricing and your application does not demand higher frequency or density, retention preserves design continuity and minimizes project risk.
What preventive maintenance or field service procedures apply to systems using the 345-098-544-802 in demanding environments?
In fielded systems, the 345-098-544-802 can experience degradation from thermal cycling, moisture ingress, vibration-induced micro-abrasion, or corrosive gas exposure. Periodic cleaning with isopropyl alcohol and a soft brush removes light oxidation and dust from the 345-098-544-802 contacts and reduces resistance creep over time. For high-reliability deployments, schedule contact inspection every 2 to 3 years; visually examine the 345-098-544-802 for green oxidation on the copper alloy base or pitting on the gold finish, which indicate accelerated degradation. Environmental sealing—such as conformal coating or potting around the 345-098-544-802—can extend connector life in harsh conditions, although rework becomes more difficult. Card reinsertion procedures (full removal and re-seating of mating cards) can temporarily restore contact quality by breaking through light oxide layers, though repeated reinsertion cycles accelerate wear on the 345-098-544-802. If resistance measurements across the 345-098-544-802 rise above baseline by more than 50%, plan preventive replacement to avoid unexpected field failures.

Parts with Similar Specifications

The three parts on the right have similar specifications to EDAC Inc. 345-098-544-802

Product Attribute 345-098-544-807 345-098-544-808 345-098-544-502 345-098-544-812
Part Number 345-098-544-807 345-098-544-808 345-098-544-502 345-098-544-812
Manufacturer EDAC Inc. EDAC Inc. EDAC Inc. EDAC Inc.
Contact Finish Thickness - - - -
Termination Rows - - - -
Gender - - - -
Material - Insulation - - - -
Features - - - Simultaneous Sampling
Contact Material - - - -
Read Out - - - -
Number of Positions/Bay/Row - - - -
Termination - - - -
Number of Rows - - - -
Series - - - -
Contact Finish - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Flange Feature - - - -
Color - - - -
Card Type - - - -
Contact Type - - - -
Card Thickness - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Mounting Type - Surface Mount Through Hole Surface Mount
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Pitch - - - -
Number of Positions - - - -

345-098-544-802 Datasheet PDF

Download 345-098-544-802 pdf datasheets and EDAC Inc. documentation for 345-098-544-802 - EDAC Inc..

Datasheets
345,395 Series Ordering Guide.pdf 345-098-544-802 Drawing.pdf
HTML Datasheet
345-098-544-802 Drawing.pdf
Environmental Information
EDAC REACH.pdf

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    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

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345-098-544-802 Image

345-098-544-802

EDAC Inc.
98D-345-098-544-802

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