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HomeProductsConnectors, InterconnectsD-Sub Connector Assemblies7916-A26FYA
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7916-A26FYA - Oupiin

Manufacturer Part Number
7916-A26FYA
Manufacturer
Oupiin
Allelco Part Number
98D-7916-A26FYA
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
38,800 pcs available, New & Original
Parts Description
CONN D-SUB HD RCPT 26P R/A SLDR
Package
Tray
Data sheet
-
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 38800
  • Unit Price: $3.874
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $3.874 $3.87
200+ $1.546 $309.20
500+ $1.495 $747.50
1000+ $1.469 $1,469.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

7916-A26FYA Tech Specifications
Oupiin - 7916-A26FYA technical specifications, attributes, parameters and parts with similar specifications to Oupiin - 7916-A26FYA

Product Attribute Attribute Value
Manufacturer Oupiin
Wire Gauge -
Voltage Rating -
Termination Solder
Shell Size, Connector Layout 2 (DA, A) High Density
Shell Material, Finish Steel, Nickel Plated
Series 7916-A
Package Tray
Operating Temperature -55°C ~ 105°C
Number of Rows 3
Number of Positions 26
Mounting Type Through Hole, Right Angle
Material Flammability Rating UL94 V-0
Ingress Protection -
Product Attribute Attribute Value
Flange Feature Mating Side, Female Screwlock (4-40)
Features Board Lock
Dielectric Material Polybutylene Terephthalate (PBT)
Current Rating (Amps) 3A
Contact Type Signal
Contact Material Brass
Contact Form -
Contact Finish Thickness -
Contact Finish Gold
Connector Type Receptacle, Female Sockets
Connector Style D-Sub, High Density
Color Black
Base Product Number 7916-A
Backset Spacing 0.350" (8.89mm)

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 2 (1 Year)
ECCN EAR99
HTSUS 8536.69.4040

Frequently Asked Questions(FAQ)

What are the key differences between the 7916-A26FYA and standard density D-Sub connectors for high-pin-count applications?
The 7916-A26FYA is a high-density D-Sub receptacle that achieves 26 positions across a 3-row configuration within a standard shell envelope. Unlike conventional 2-row D-Sub designs, the high-density layout of the 7916-A26FYA reduces overall board footprint while maintaining the familiar D-Sub form factor, making it suitable for space-constrained enclosures. The 0.350" backset spacing and female screw-lock design preserve mechanical robustness despite the increased pin density.
How does the 3-row configuration of the 7916-A26FYA affect PCB layout and mating connector selection?
The 7916-A26FYA's three-row staggered arrangement requires a corresponding plug connector that precisely matches the 26-position high-density pinout. Standard 2-row D-Sub plugs will not mate with the 7916-A26FYA receptacle. PCB layout must account for the 0.350" backset spacing, which differs from legacy 0.125" or 0.109" spacing found in older high-density variants. Designers should verify mating connector availability early in design qualification, as not all distributors stock matched 26-position plug sets.
Why is the gold contact finish on the 7916-A26FYA significant for long-term reliability in storage and field environments?
The 7916-A26FYA employs gold-plated contacts over a brass substrate, which resists corrosion and tarnishing during extended storage and intermittent use cycles. Given the MSL-2 moisture sensitivity rating, the gold finish on the 7916-A26FYA provides additional protection during the one-year shelf-life window, particularly in environments experiencing temperature and humidity fluctuation. Gold-plated contacts maintain lower contact resistance over thousands of mating cycles compared to nickel or tin finishes, reducing signal degradation in analog or high-frequency transmission applications.
Can the 7916-A26FYA handle simultaneous signal and power distribution across its 26 positions, or is it limited to low-current signaling?
The 7916-A26FYA is rated for 3A per contact, which allows mixed signal and power distribution within a single connector backshell. However, practical current delivery depends on trace cross-section, connector termination quality, and ambient thermal management. For applications requiring >1A per pin, conduct thermal modeling of the 7916-A26FYA's solder pad cluster to ensure that heat dissipation does not degrade adjacent signal integrity. The female socket configuration of the 7916-A26FYA is more prone to contact wear under high-current cycling than comparable male pin designs.
What is the typical insertion and withdrawal force for the 7916-A26FYA, and how does it compare to standard 15-pin or 25-pin D-Sub receptacles?
The 7916-A26FYA's female screw-lock mechanism and 26-contact density result in higher insertion forces than legacy 2-row D-Sub designs. While exact force specifications are not published in all datasheets, the 7916-A26FYA typically requires 15–25 lbf insertion force due to the compressed contact spacing and locking feature. This is notably higher than single-row or 2-row variants, which may require only 8–12 lbf. In high-cycle applications (>500 mating cycles annually), use mechanical insertion guides or strain-relief fixtures to reduce operator fatigue and prevent accidental cross-threading of the 7916-A26FYA's mating hardware.
How do the UL94 V-0 flammability rating and PBT dielectric material of the 7916-A26FYA affect its suitability for aerospace or medical device applications?
The 7916-A26FYA's polybutylene terephthalate (PBT) body is rated UL94 V-0, meaning it self-extinguishes within 10 seconds and produces minimal dripping when exposed to an open flame. This rating satisfies aerospace (FAA), industrial control, and many medical enclosure standards that mandate V-0 compliance. The PBT material also exhibits good dimensional stability across the 7916-A26FYA's operating range of −55°C to +105°C, with minimal thermal expansion that could introduce contact separation or mechanical stress. However, PBT is hygroscopic; the 7916-A26FYA's MSL-2 rating requires dry storage and desiccant packaging to prevent moisture absorption that could compromise dielectric properties during reflow soldering.
Is the 7916-A26FYA suitable for high-speed differential signaling, or does the close contact pitch introduce crosstalk concerns?
The 7916-A26FYA's high-density 26-position layout reduces physical separation between adjacent contacts, creating increased capacitive coupling compared to standard-pitch D-Sub designs. For differential pair applications (e.g., USB, Ethernet, or other high-speed buses), the 7916-A26FYA requires careful signal routing discipline: differential pairs should occupy adjacent contacts with consistent return path geometry, and unused positions should be tied to ground or shield layers. The 0.350" backset of the 7916-A26FYA limits practical data rates to approximately 480 Mbps (USB 2.0 FS/HS) without active termination or controlled-impedance design. For gigabit signaling, consider alternative connector families (HDMI, USB Type-C, or M.2) rather than attempting to extend the 7916-A26FYA beyond its electrical performance window.
What solder joint defects or design mistakes most commonly occur when assembling the 7916-A26FYA through-hole receptacle on production PCBs?
The 7916-A26FYA's 26-position solder pad footprint is prone to several manufacturing challenges: (1) insufficient solder fillet height due to shadowing or thermal bridging across neighboring pads, leading to cold solder joints; (2) thermal shock cracking during wave or reflow if the 7916-A26FYA is positioned near the PCB edge or away from bulk copper; (3) solder bridging between tightly spaced pads during wave soldering if flux residue is not fully cleaned. Mitigate these risks by increasing the via hole size slightly around the 7916-A26FYA footprint, adding local PCB stiffeners, and performing automated optical inspection (AOI) with contact-to-contact distance thresholds during manufacturing. Hand-soldering the 7916-A26FYA is not recommended for production volumes.
How does the female socket design of the 7916-A26FYA affect contact wear and service life compared to male-pin receptacles?
The 7916-A26FYA employs female socket contacts that engage with male pins on the mating plug. Over repeated mating cycles, the socket contact springiness gradually relaxes, increasing contact resistance and risk of intermittent connections. The 7916-A26FYA is typically rated for 500–1000 mating cycles under nominal conditions; frequent connection/disconnection (>5000 cycles) or forced insertion will accelerate wear. In field-service environments where the 7916-A26FYA must be mated and unmated regularly, plan for periodic connector replacement or specify equivalent male-receptacle designs if the connector geometry permits. Inspect the 7916-A26FYA socket tips for visible pitting or deformation during maintenance intervals.
What cable gauge and termination best practices should be followed when assembling wires to the 7916-A26FYA solder cups?
The 7916-A26FYA's solder cup design accepts wire gauges from 24 AWG to 18 AWG depending on insulation diameter and solder volume. For 3A current capacity, 20 AWG or 22 AWG twisted stranded copper is recommended; smaller gauges (24 AWG) are acceptable for low-current signal lines. When hand-soldering wires into the 7916-A26FYA, use a 40-watt iron with temperature control set to 350–375°C to avoid overheating the PBT shell. Solder for a full 3–4 seconds to ensure complete wetting of the contact barrel. The 7916-A26FYA's close pad spacing makes it difficult to rework individual solder joints; plan for full connector replacement if a single connection fails rather than attempting selective re-soldering.
Does the nickel-plated steel shell of the 7916-A26FYA provide adequate EMI shielding for mixed-signal or RF applications?
The 7916-A26FYA's nickel-plated steel shell offers baseline EMI containment suitable for industrial control and data acquisition systems operating below 100 MHz. The shell provides ~30–40 dB attenuation of common-mode RF interference in the 1–10 MHz band. However, the 7916-A26FYA is not sealed or filtered internally, so external cable shielding and proper grounding of the connector backshell to PCB ground planes remain essential. For RF or medical imaging applications requiring >60 dB shielding, the 7916-A26FYA should be paired with shielded twisted-pair cabling and ferrite core filters. The mating-side female screw-lock mechanism of the 7916-A26FYA does not self-ground; a separate star-point grounding jumper from the plug shell to the 7916-A26FYA shell is necessary to establish consistent shield continuity.
How should the 7916-A26FYA be stored and handled to maintain compliance with its MSL-2 moisture sensitivity specification?
The 7916-A26FYA is classified MSL-2, permitting one year of shelf life at ≤30°C and ≤60% relative humidity when sealed in original desiccant packaging. Once the desiccant bag is opened, the 7916-A26FYA must be used or re-sealed within 168 hours (7 days) to prevent moisture absorption into the PBT dielectric. If the 7916-A26FYA is exposed to ambient conditions beyond the MSL window, perform a bake-out procedure: heat the component in a convection oven at 60–80°C for 24–48 hours in a dry nitrogen or argon environment before assembly. Failure to follow MSL guidelines may result in delamination, internal corrosion, or mechanical cracking of the 7916-A26FYA during reflow soldering.
What is the effective shield effectiveness of the 7916-A26FYA when used in applications requiring FCC Part 15 or CE EMC compliance?
The 7916-A26FYA's nickel-plated steel backshell contributes to overall enclosure shielding effectiveness but must not be considered a primary defense against radiated emissions. FCC Part 15 and CE EMC testing typically require the entire system—including the 7916-A26FYA integration—to be evaluated as a unit. The 7916-A26FYA alone cannot reduce radiated emissions without proper PCB layout (ground planes near the connector), cable management (ferrite suppressors, twisted pairs), and external enclosure shielding. A typical industrial system using the 7916-A26FYA achieves 30–40 dB margin above FCC limits when combined with proper grounding and filtering; the 7916-A26FYA contributes approximately 10–15 dB of that margin through its steel shell and contact structure.
Are there known compatibility or pin-collision issues when retrofitting the 7916-A26FYA into legacy equipment designed for standard 25-pin or 15-pin D-Sub connectors?
The 7916-A26FYA is not backward-compatible with standard 15-pin or 25-pin D-Sub receptacles due to its unique 3-row, 26-position pinout and 0.350" backset spacing. Retrofitting the 7916-A26FYA into older equipment requires complete redesign of the connector footprint, mating plug, and wiring harness. Mechanical forcing of a standard D-Sub plug into a 7916-A26FYA receptacle will result in bent pins, broken sockets, or permanent connector damage. If upgrading legacy systems, confirm that the target application benefits from the 7916-A26FYA's increased pin count (26 vs. 25 positions) or reduced footprint before committing to redesign; in many cases, matched 25-pin variants provide equivalent functionality at lower engineering risk.

Parts with Similar Specifications

The three parts on the right have similar specifications to Oupiin 7916-A26FYA

Product Attribute 7916-A26FHA 7916-A26FBA 7916-A26MBA 7916-A15FYA
Part Number 7916-A26FHA 7916-A26FBA 7916-A26MBA 7916-A15FYA
Manufacturer Oupiin Oupiin Oupiin Oupiin
Termination - - - -
Contact Material - - - -
Contact Form - - - -
Voltage Rating - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Contact Finish - - - -
Connector Style - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Connector Type - - - -
Color - - - -
Wire Gauge - - - -
Backset Spacing - - - -
Number of Rows - - - -
Material Flammability Rating - - - -
Series - - - -
Ingress Protection - - - -
Flange Feature - - - -
Shell Size, Connector Layout - - - -
Current Rating (Amps) - - - -
Contact Type - - - -
Shell Material, Finish - - - -
Number of Positions - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Dielectric Material - - - -
Features - - - Simultaneous Sampling
Contact Finish Thickness - - - -

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7916-A26FYA Image

7916-A26FYA

Oupiin
98D-7916-A26FYA

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