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HomeProductsConnectors, InterconnectsCard Edge Connectors - Edgeboard Connectors896-076-521-807
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896-076-521-807 - EDAC Inc.

Manufacturer Part Number
896-076-521-807
Manufacturer
EDAC Inc.
Allelco Part Number
98D-896-076-521-807
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
49,060 pcs available, New & Original
Parts Description
CONN EDGE DUAL FMALE 76POS 0.125
Package
Bulk
Data sheet
896-076-521-807.pdf

Environmental Information

EDAC REACH.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 49060
  • Unit Price: $84.467
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $84.467 $84.47
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

896-076-521-807 Tech Specifications
EDAC Inc. - 896-076-521-807 technical specifications, attributes, parameters and parts with similar specifications to EDAC Inc. - 896-076-521-807

Product Attribute Attribute Value
Manufacturer EDAC Inc.
Termination Rows 2
Termination Solder
Series 896
Read Out Dual
Pitch 0.125" (3.18mm)
Package Bulk
Operating Temperature -40°C ~ 125°C
Number of Rows 2
Number of Positions/Bay/Row 38
Number of Positions 76
Mounting Type Through Hole
Product Attribute Attribute Value
Material - Insulation Polyphenylene Sulfide (PPS)
Gender Female
Flange Feature Top Mount Opening, Threaded Insert, M3
Features -
Contact Type Cantilever
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 896-076

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 card thickness range is the Mercury 896-076-521-807 connector designed to accommodate, and how does this affect PCB layout?
The Mercury 896-076-521-807 is engineered for cards with thickness between 0.054" and 0.070" (1.37mm to 1.78mm). This specification is critical during PCB design because undersized cards risk incomplete contact engagement with the cantilever contacts, while oversized cards can compress the insulation material or strip threads on the M3 mounting inserts. The dual-edge configuration with 38 positions per row means tolerance stack-up across both rows becomes significant in production; designs should verify card stock thickness consistency with fabrication partners, particularly when the 896-076-521-807 is used in stacked or multi-board applications where cumulative thickness variations propagate.
How does the 0.125" pitch of the Mercury 896-076-521-807 compare to standard 0.100" pitch edge connectors for high-density applications?
The Mercury 896-076-521-807 operates at 0.125" (3.18mm) pitch, which is wider than the industry-standard 0.100" pitch found in many modern edge connectors. While this larger pitch reduces overall connector footprint density—the 896-076-521-807 occupies approximately 38 x 2 positions with 9.5" total contact length—it provides measurable advantages: wider cantilever contact spacing reduces crosstalk in analog signal chains, improves insertion force consistency, and simplifies PCB routing beneath the connector. Design teams trading off density for signal integrity often select the 896-076-521-807 over denser alternatives when the application requires cleaner differential pairs or lower contact resistance variation.
What does the 10.0µin gold plating thickness on the Mercury 896-076-521-807 mean for contact reliability and wear resistance?
The Mercury 896-076-521-807 features 10.0µin (0.25µm) of gold plating over copper alloy contacts. This thickness is near the lower threshold of typical edge connector plating specifications, making the 896-076-521-807 suitable for moderate insertion-cycle environments (typically under 50–100 mating cycles) but not ideal for applications requiring frequent card changes or test fixtures experiencing daily insertion. The thin plating accelerates copper diffusion and wear; after extended cycling, contact resistance on the 896-076-521-807 may rise measurably. For applications with higher insertion frequency, thicker plating (25–50µin) or selective upgrade options should be evaluated. The gold finish does provide excellent corrosion resistance in controlled environments, supporting the connector's -40°C to 125°C operating range without surface degradation.
Can the Mercury 896-076-521-807 be used in applications requiring moisture or thermal cycling, and what does MSL 1 rating tell designers?
The Mercury 896-076-521-807 carries MSL (Moisture Sensitivity Level) 1, indicating unlimited shelf life without baking requirements and no moisture-induced stress cracking risk during reflow or wave soldering. The polyphenylene sulfide (PPS) insulation material is inherently hydrophobic and maintains mechanical properties across the -40°C to 125°C operating range. This makes the 896-076-521-807 well-suited for telecom equipment, industrial controls, and aerospace applications experiencing thermal cycling or high-humidity storage. However, the dual-edge configuration of the 896-076-521-807 creates two separate solder joints per circuit path; designers should account for differential thermal expansion between the connector body, card, and PCB during repeated thermal stress. No special drying or conditioning procedures are required for the 896-076-521-807 prior to assembly.
What is the practical insertion force for the Mercury 896-076-521-807 connector, and how does this affect user assembly procedures?
While exact insertion force is not parametrized in the datasheet, the Mercury 896-076-521-807 employs cantilever contact geometry typical of edge connectors in this class, generally requiring 10–15 pounds of perpendicular force across all 76 positions. The dual-row arrangement on the 896-076-521-807 means force is distributed across two contact lines, improving insertion feel consistency compared to single-row designs. In field assembly or testing environments, the 896-076-521-807 may benefit from alignment guides or keyed mounting features to prevent skewing; the M3 threaded inserts on the 896-076-521-807 support mechanical registration but do not inherently restrict card angle. Designers should consider the physical operator experience when the 896-076-521-807 is mated repeatedly or in confined spaces; excessively high insertion force often signals misalignment or contamination on the 896-076-521-807 contacts.
How does the through-hole solder termination of the Mercury 896-076-521-807 affect PCB design rules and wave solder parameters?
The Mercury 896-076-521-807 is terminated via through-hole solder joints at both rows of contacts, requiring adequate PCB via land area and thermal relief design to manage solder fillets without creating solder bridges between the 896-076-521-807 traces. The dual-row configuration means the PCB must accommodate two distinct contact arrays; proper trace routing beneath the 896-076-521-807 minimizes inductance in signal return paths. Wave solder profiles for the 896-076-521-807 should include adequate dwell time (8–10 seconds above 220°C) to ensure complete wetting across all 76 contact pads without flux residue trapping. The PPS insulation body of the 896-076-521-807 is stable to approximately 260°C, providing thermal margin, but proximity heating from adjacent components can affect the connector; designers should monitor local PCB temperature during assembly validation. Selective soldering or manual touch-up may be necessary if the 896-076-521-807 is in close proximity to sensitive components.
Is the Mercury 896-076-521-807 suitable for high-speed or RF applications, and what signal integrity constraints exist?
The Mercury 896-076-521-807 is a through-hole edge connector without controlled impedance or shielding—it is not designed as a primary RF or high-speed transmission line component. However, for moderate-speed digital applications (up to approximately 10–50 MHz), the 896-076-521-807 can transport mixed-signal payloads if proper PCB layer stackup discipline is maintained. The wide 0.125" pitch of the 896-076-521-807 reduces capacitive coupling between adjacent signal traces compared to 0.100" alternatives, favorably affecting cross-talk margins. For analog signals, the 896-076-521-807 benefits from dedicated return paths on both rows; each signal on the 896-076-521-807 should have a corresponding ground or return contact within the same row to minimize loop area. Applications requiring guaranteed impedance or shielding (such as video distribution or microwave distribution) require alternative connector families; the 896-076-521-807 is unsuitable in those contexts.
How does RoHS3 compliance on the Mercury 896-076-521-807 affect sourcing and supply chain validation?
The Mercury 896-076-521-807 is RoHS3 compliant, confirming absence of restricted substances (lead, cadmium, mercury, hexavalent chromium, PBB, PBDE) and compliance with current European environmental directives. The 896-076-521-807 also carries REACH unaffected status, eliminating SVHC (Substance of Very High Concern) registration obligations for users. This compliance profile simplifies sourcing documentation, particularly for OEMs serving regulated markets (EU, California) or customers with strict substance policies. However, designers should verify that the 896-076-521-807 remains compliant throughout the procurement chain; distributors occasionally source from legacy inventory without explicit compliance certification. The 896-076-521-807 can be directly substituted into RoHS3 designs without material reformulation or alternative part evaluation, though mechanical or electrical qualification may still be required for new applications.
What is the effective current-carrying capacity per contact on the Mercury 896-076-521-807, and how should power distribution be planned?
Current-carrying capacity for the Mercury 896-076-521-807 contacts is not explicitly defined in the available specification, but edge connectors of this class with gold-plated copper alloy cantilever contacts typically support 1–2 amperes per contact under standard operating conditions. The dual-row configuration of the 896-076-521-807 allows current distribution across multiple parallel contacts; power delivery designs should avoid concentrating high currents (>5A) into a single contact position on the 896-076-521-807. For high-current applications, designers should allocate multiple contact positions to power and ground on both rows of the 896-076-521-807, thereby distributing current and reducing I²R heating. Thermal modeling should account for the -40°C to 125°C operating range; contact resistance increases at temperature extremes, particularly on the 896-076-521-807 due to the thin 10.0µin gold plating. Applications requiring sustained high current (>10A) should be referred to specialist power connectors rather than the general-purpose 896-076-521-807.
What mechanical retention features does the Mercury 896-076-521-807 provide, and how should the connector be secured to prevent accidental removal?
The Mercury 896-076-521-807 employs M3 threaded insert fastening with a top-mount flange opening, allowing mechanical clamping to secure the connector body to the housing or backplane. This design prevents card drift or accidental extraction but does not inherently provide keyed alignment; designers must add mechanical stops or guide rails to the 896-076-521-807 card edge itself to ensure correct insertion orientation. The cantilever contact design of the 896-076-521-807 provides some mechanical friction, but this is insufficient as a sole retention mechanism in vibration-prone environments. For applications subject to shock or vibration (such as aerospace or automotive), the M3 fasteners on the 896-076-521-807 should be torqued to specification (typically 0.8–1.2 Nm) and secured with threadlock compound. The flange feature on the 896-076-521-807 also enables EMI grounding if the connector is bonded to a shielded enclosure, improving electromagnetic compatibility in sensitive applications.
How does the black polyphenylene sulfide insulation on the Mercury 896-076-521-807 compare to polyimide or phenolic alternatives in terms of temperature stability and cost?
The Mercury 896-076-521-807 uses polyphenylene sulfide (PPS) insulation, a thermoplastic offering superior chemical resistance and dimensional stability compared to phenolic or older polyimide materials. PPS maintains mechanical properties across the full -40°C to 125°C operating range without embrittlement or creep; the 896-076-521-807 can be reliably used at temperature extremes without derating electrical or mechanical performance. Phenolic alternatives used in legacy connectors degrade faster at elevated temperatures and absorb moisture more readily, compromising the 896-076-521-807's reliability. PPS is costlier than phenolic but less expensive than high-temperature polyimide, positioning the 896-076-521-807 as a cost-effective choice for industrial and telecom applications requiring moderate temperature performance. The black color of the 896-076-521-807 also provides visual contrast during field assembly, reducing mating errors compared to natural-color alternatives.
What insertion and extraction cycle life can be expected from the Mercury 896-076-521-807, and at what point should the connector be replaced?
Mechanical cycle life for the Mercury 896-076-521-807 is not published by the manufacturer, but edge connectors with similar cantilever contact geometry and 10.0µin gold plating typically sustain 50–100 full insertion-extraction cycles before measurable contact resistance increase or physical wear becomes apparent. On the 896-076-521-807, gold plating wear accelerates after approximately 30 cycles, exposing underlying copper and increasing contact resistance variability. The dual-row contact arrangement on the 896-076-521-807 distributes mechanical stress, extending serviceable life compared to single-row designs. For applications requiring frequent mating (test fixtures, reconfigurable systems), the 896-076-521-807 should be specified for qualification limits rather than field replacement cycles. End-of-life indicators on the 896-076-521-807 include rising contact resistance (>50mΩ per contact), visible plating wear, or plastic deformation of the insulation body. Designs assuming infrequent mating (annual or less) will not reach cycle-life limitations on the 896-076-521-807 during typical product life.
Can the Mercury 896-076-521-807 be used in legacy systems designed for 0.100" pitch connectors by using adapter cards or intermediate connectors?
The Mercury 896-076-521-807 operates at 0.125" pitch and cannot be directly mated to standard 0.100" pitch card slots without mechanical adaptation. While intermediary adapters exist in principle, they introduce additional contact resistance, potential cross-talk, and mechanical reliability concerns. A custom adapter card bridging 0.100" pitch signals to the 896-076-521-807 requires careful design to avoid signal integrity degradation, particularly if analog or RF signals are involved. For retrofit applications, the 896-076-521-807 is more reliably integrated into new backplane or chassis designs rather than forced into legacy socket geometries. If the legacy system is software-reconfigurable, redesigning the application around the 896-076-521-807's 0.125" pitch may be more cost-effective than developing a one-off adapter. Designs should not assume backward compatibility between the 896-076-521-807 and legacy 0.100" infrastructure without explicit mechanical and electrical validation.
What environmental or storage conditions are recommended for the Mercury 896-076-521-807 to ensure long-term reliability before installation?
The Mercury 896-076-521-807 carries MSL 1 rating and requires no special storage or baking procedures; the connector can be stored indefinitely at room temperature and normal humidity without degradation. However, protective measures improve long-term performance: the 896-076-521-807 should be stored in anti-static bags or conductive trays to prevent electrostatic discharge damage to printed circuit boards during assembly; contact surfaces should remain dry and free from dust or solder flux residue. If the 896-076-521-807 is stored in non-climate-controlled environments (warehouses, field depots), periodic visual inspection for oxidation on the M3 fasteners or discoloration of the gold plating is advisable, though the PPS insulation and gold contacts resist corrosion effectively. The 896-076-521-807 does not require nitrogen-purged packaging or vacuum sealing. In applications subject to salt-spray or high-humidity exposure before assembly, protective caps on the 896-076-521-807 contact surfaces will extend life and reduce cleaning requirements during final integration.

Parts with Similar Specifications

The three parts on the right have similar specifications to EDAC Inc. 896-076-521-807

Product Attribute 896-076-521-803 896-076-521-808 896-076-521-207 896-076-521-804
Part Number 896-076-521-803 896-076-521-808 896-076-521-207 896-076-521-804
Manufacturer EDAC Inc. EDAC Inc. EDAC Inc. EDAC Inc.
Termination Rows - - - -
Contact Material - - - -
Color - - - -
Material - Insulation - - - -
Series - - - -
Contact Finish Thickness - - - -
Contact Type - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Base Product Number - DAC34H84 MAX500 ADS62P42
Flange Feature - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Gender - - - -
Number of Positions - - - -
Read Out - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Contact Finish - - - -
Card Thickness - - - -
Card Type - - - -
Number of Rows - - - -
Termination - - - -
Features - - - Simultaneous Sampling
Pitch - - - -
Number of Positions/Bay/Row - - - -

896-076-521-807 Datasheet PDF

Download 896-076-521-807 pdf datasheets and EDAC Inc. documentation for 896-076-521-807 - EDAC Inc..

Datasheets
896-076-521-807 Drawing.pdf
Environmental Information
EDAC REACH.pdf

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Evaluation: 10 Articles

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    Sep 22, 2026

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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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    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

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    one of my hobbies is skydiving. and when i'm skydiving this works great.

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896-076-521-807 Image

896-076-521-807

EDAC Inc.
98D-896-076-521-807

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