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Home > Products > Connectors, Interconnects > Circular Connectors - Circular Connector Assemblies > MKJ5C7F12-26AC
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MKJ5C7F12-26AC

Manufacturer Part Number:
MKJ5C7F12-26AC
Manufacturer / Brand
ITT Cannon, LLC
Part of Description:
CIRCULAR
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 33468 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number MKJ5C7F12-26AC
Manufacturer / Brand ITT Cannon, LLC
Stock Quantity 33468 pcs Stock
Category Connectors, Interconnects > Circular Connectors - Circular Connector Assemblies
Description CIRCULAR
Lead Free Status / RoHS Status: RoHS Compliant
Voltage Rating 500VAC
Termination Solder
Shielding Shielded
Shell Size, MIL -
Shell Size - Insert 12-26
Shell Material Aluminum Alloy
Shell Finish Electroless Nickel
Series MKJ5
Primary Material Metal
Package Bulk
Orientation C
Operating Temperature -55°C ~ 150°C
Number of Positions 26
Mounting Type Panel Mount, Through Hole
Mounting Feature Bulkhead - Front Side Nut
Material Flammability Rating -
Insert Material Thermoplastic
Ingress Protection -
Features -
Fastening Type Threaded
Current Rating (Amps) 5A
Contact Material Copper Alloy
Contact Finish Thickness - Mating -
Contact Finish - Mating Gold
Connector Type Receptacle, Male Pins
Color Silver
Cable Opening -
Base Product Number MKJ5C
Backshell Material, Plating -
Applications Aerospace, Communication Systems, Industrial, Instrumentation, Medical

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



We accept the payment terms: Telegraphic Transfer(T/T), Credit Card, PayPal and Western Union.

PayPal:

PayPal Bank Information:
Company Name : IC COMPONENTS LTD
Paypal ID: Info@IC-Components.com

BANK TRANSFAR (Telegraphic Transfer)

Payment For Telegraphic Transfers:
Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
Beneficiary Bank SWIFT : COMMHKHK
Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


Frequently Asked Questions

How should MKJ5C7F12-26AC be integrated if the system supply or harness insulation is below its 500VAC rating?
MKJ5C7F12-26AC can be used in designs where the connector sees a lower working voltage than its 500VAC rating, but the surrounding PCB, wiring, and creepage/clearance must also be matched to the actual system voltage, pollution degree, and transient environment. For mixed-voltage equipment, keep the connector pinout separated by signal class and verify that the mating cable and terminations do not become the limiting insulation element.
Is MKJ5C7F12-26AC suitable for replacing another circular receptacle with the same 26-position count?
MKJ5C7F12-26AC is only a practical replacement when the mating interface matches the MKJ5 series geometry, shell size 12-26 layout, panel cutout, bulkhead mounting style, and threaded coupling details. Even when pin count matches, differences in orientation, shell size, contact gender, and termination style can prevent drop-in replacement without redesigning the panel or harness.
What should be checked before using MKJ5C7F12-26AC in a high-vibration or aerospace panel?
MKJ5C7F12-26AC uses a threaded coupling and metal shell, which helps with retention and shielding, but the panel stack-up, torque control, and cable strain relief still need to be verified for the expected vibration profile. In aerospace or mobile equipment, confirm that solder terminations are supported mechanically so vibration does not load the contacts or crack the solder joints over time.
Can MKJ5C7F12-26AC carry power and signals in the same connector, and what are the limits?
MKJ5C7F12-26AC can mix power and signal circuits if the pin assignment, conductor sizing, and thermal rise are engineered carefully. The 5A current rating is a per-contact limit, so power distribution should account for derating, simultaneous loading, contact resistance, and the temperature rise inside the enclosure, especially when several high-current contacts are adjacent.
What are the design risks when soldering wires or harness leads to MKJ5C7F12-26AC?
MKJ5C7F12-26AC uses solder termination, so joint quality depends on wetting, process control, and strain relief. For fielded equipment, avoid letting cable weight or repeated flexing act directly on the soldered contacts; use a supported harness route, backshell or clamp strategy if the enclosure allows it, and verify solder fillet consistency under production conditions.
Is MKJ5C7F12-26AC appropriate for replacing crimp-contact connectors in an existing harness?
MKJ5C7F12-26AC is not a direct substitute for a crimp system unless the harness build process can be changed to solder termination and the service model accepts that change. Crimp-to-solder migration can affect repairability, assembly time, and rework flow, so the replacement decision should include field maintenance needs and factory tooling availability, not only the mating interface.
How does MKJ5C7F12-26AC behave in long-term industrial use with temperature cycling?
MKJ5C7F12-26AC is specified for -55°C to 150°C, which supports demanding thermal environments, but long-term reliability still depends on matching the connector to the board, cable, and enclosure materials. Repeated cycling can stress solder joints, insulation interfaces, and panel hardware differently, so thermal expansion mismatch and retention hardware should be reviewed for the full operating profile.
When would MKJ5C7F12-26AC not be the best choice for a medical or instrumentation design?
MKJ5C7F12-26AC is less suitable when the application needs frequent blind mating, ultra-fast disconnect, or a connector family with integrated sealing data or IP requirements that are explicitly specified by the system standard. In medical or precision instrumentation builds, the lack of an explicit ingress protection rating also means environmental exposure, cleaning method, and enclosure sealing must be addressed at the system level.
What are the practical differences between MKJ5C7F12-26AC and a plastic-bodied circular connector?
MKJ5C7F12-26AC uses an aluminum alloy shell with electroless nickel finish and shielding, which generally supports better EMI control and mechanical robustness than many plastic-bodied alternatives. The trade-off is that panel grounding, corrosion strategy, and mating tolerance need to be considered more deliberately, especially if the enclosure relies on the connector shell for shielding continuity.
How should MKJ5C7F12-26AC be evaluated as a replacement when the original part number is unavailable?
MKJ5C7F12-26AC should be checked against the original part’s series, shell size, pin gender, orientation, panel thickness, mounting hardware, and contact loading before it is approved as a substitute. A close match on connector count alone is not enough; the real migration risks are usually mechanical fit, harness termination method, and whether the new part preserves shielding and service access.
Can MKJ5C7F12-26AC be used in a shielded cable assembly without compromising EMI performance?
MKJ5C7F12-26AC includes a shielded metal shell, so it can support a low-impedance shield path when the cable shield, panel bond, and mating connector are assembled with consistent grounding practice. EMI performance depends on the entire interface, so shield termination style, panel bonding resistance, and cable exit geometry should be validated in the actual enclosure.
What should be reviewed before qualifying MKJ5C7F12-26AC for continuous high-temperature operation?
MKJ5C7F12-26AC is rated to 150°C, but qualification should still cover the contact loading, adjacent component temperatures, solder alloy selection, and insulation materials used in the harness or PCB. High-temperature use often exposes weak points in strain relief, connector-to-panel interface stability, and long-term oxidation behavior rather than the connector shell alone.

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MKJ5C7F12-26AC

ITT Cannon, LLC

CIRCULAR

In Stock: 33468

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