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HomeProductsConnectors, InterconnectsCircular Connectors806-040-Z120E28G28SCE
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806-040-Z120E28G28SCE - Glenair

Manufacturer Part Number
806-040-Z120E28G28SCE
Manufacturer
Glenair
Allelco Part Number
98D-806-040-Z120E28G28SCE
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
32,774 pcs available, New & Original
Parts Description
Circular connector
Package
Retail Package
Data sheet
806-040-Z120E28.pdf
RoHs Status
 
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In stock: 32774

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Specifications

806-040-Z120E28G28SCE Tech Specifications
Glenair - 806-040-Z120E28G28SCE technical specifications, attributes, parameters and parts with similar specifications to Glenair - 806-040-Z120E28G28SCE

Product Attribute Attribute Value
Manufacturer Glenair
Series *
Product Attribute Attribute Value
Package Retail Package

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status Not applicable
Moisture Sensitivity Level (MSL) Not Applicable
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8536.69.4020

Frequently Asked Questions(FAQ)

What are the key environmental and thermal design considerations when integrating the Glenair 806-040-Z120E28G28SCE into aerospace applications?
The 806-040-Z120E28G28SCE operates across -65°C to 175°C, supporting both cryogenic ground equipment and high-temperature avionics environments without performance degradation. The stainless steel shell with passivated finish and gold-plated mating contacts resist corrosion in pressurized cabin air and salt-fog exposure. Aerospace designers often encounter thermal cycling stress at connector interfaces; the 806-040-Z120E28G28SCE's solder termination and passivated stainless construction minimize contact resistance drift during repeated temperature swings. The 1300VDC voltage rating provides margin for aircraft DC bus transients, particularly in military platforms where bus regulation tolerances are wider.
How does the 806-040-Z120E28G28SCE's 5A per-contact current rating affect multi-conductor power distribution in avionics harnesses?
At 5A per contact, the 806-040-Z120E28G28SCE accommodates moderate-power distribution across its 28 positions without requiring parallel contacts for standard avionics loads (typically 1–3A per circuit). For higher-power applications such as motor control or transformer primaries, designers must evaluate whether load sharing across multiple 806-040-Z120E28G28SCE positions, or transitioning to higher current-rated connectors in the series, better serves thermal margin requirements. The gold contact finish on the 806-040-Z120E28G28SCE maintains low contact resistance (typically <10mΩ per mated pair) over thousands of insertion cycles, reducing I²R heating in critical signal return paths.
What are the practical differences between solder termination and crimp termination when selecting between the 806-040-Z120E28G28SCE and alternative connector variants?
The 806-040-Z120E28G28SCE employs solder termination, which offers superior reliability in high-vibration aerospace environments by eliminating contact resistance drift from micromotion. Solder joints require controlled reflow processes and X-ray inspection for aerospace qualification; crimp variants offer faster assembly but introduce residual stress and potential fretting corrosion under sustained vibration. For harnesses subject to thermal cycling between -65°C and 175°C, the 806-040-Z120E28G28SCE's solder approach distributes mechanical stress more uniformly across the conductor-to-contact interface than crimp retention alone, reducing fatigue crack initiation at the contact barrel.
How does the panel-mount flange configuration of the 806-040-Z120E28G28SCE influence enclosure design and EMI shielding strategy?
The 806-040-Z120E28G28SCE flange mount design provides secure mechanical retention through threaded fasteners and establishes a controlled reference plane for return path continuity. When the 806-040-Z120E28G28SCE is installed into shielded aluminum or composite enclosure bulkheads, the stainless steel shell and passivated finish support direct bonding to enclosure shields via the flange, reducing loop area for common-mode currents and improving high-frequency noise rejection. The 1.444" cable opening accommodates standard aerospace circular connector backshells; designers must verify that EMI shielding integrity is maintained at the 806-040-Z120E28G28SCE backshell interface, particularly for data harnesses running adjacent to power conductors.
What contact arrangement and keying considerations apply to the 806-040-Z120E28G28SCE in the Mighty Mouse 806 series?
The 806-040-Z120E28G28SCE is a size 20-28 receptacle with female socket contacts, part of Glenair's Mighty Mouse 806 series characterized by compact form factors and standardized contact geometries. The E orientation denotes a specific pin arrangement defined by the series specification; designers must cross-reference the exact contact map to avoid mating errors. The 28-position count on the 806-040-Z120E28G28SCE typically supports split power/signal harnesses where isolated return paths or redundant signal pairs require dedicated contacts. Keying and polarization features prevent reverse insertion; verification of contact position assignments during PCB or backshell design prevents costly rework after connector qualification.
How do the gold plating thickness and copper alloy contact material of the 806-040-Z120E28G28SCE compare to alternatives for long-term reliability in storage and dormant systems?
The 806-040-Z120E28G28SCE features 50µin (1.27µm) gold plating over copper alloy, providing corrosion resistance for contacts stored in unpressurized or high-humidity environments for extended periods. Thicker gold plating (75–100µin) offers additional margin against galvanic corrosion in salt-fog or moisture-rich conditions; thinner plating reduces cost but increases tarnish risk if contacts remain unmated. The copper alloy substrate of the 806-040-Z120E28G28SCE supports consistent contact resistance when mated, but unmated contact surfaces exposed to salt spray or industrial atmospheres may develop microscopic oxidation requiring periodic insertion-cycle maintenance during dormancy windows. For mission-critical aerospace systems requiring multi-year shelf life, designers often prefer thicker-plated alternatives or hermetically sealed connector variants.
What cable and backshell configurations are most compatible with the 806-040-Z120E28G28SCE's 1.444" cable opening and solder termination process?
The 1.444" (36.68mm) cable opening of the 806-040-Z120E28G28SCE accommodates standard aerospace circular connector backshells and multi-conductor cables in the 0.375–0.625" diameter range. Backshells with integral strain relief or potted solder cups are commonly paired with the 806-040-Z120E28G28SCE to protect the solder joint array during service. The solder termination requirement necessitates flux management and thermal profiling to avoid cold joints or solder bridging between the 806-040-Z120E28G28SCE's closely spaced contacts; automated selective solder or hand-soldering with temperature-controlled irons (350–375°C tip) are standard practices. Backshell potting compounds must be selected for compatibility with the 806-040-Z120E28G28SCE's operating temperature range (-65°C to 175°C) to prevent differential expansion and stress concentration at the solder fillet.
How does the 806-040-Z120E28G28SCE's threaded fastening system affect connector removal, maintenance, and rework procedures in fielded systems?
The threaded fastening mechanism on the 806-040-Z120E28G28SCE provides robust mechanical lock-out against vibration-induced disconnection, but requires torque wrenches and alignment tools for safe mating and demating in tight avionics bays. Over-torquing the 806-040-Z120E28G28SCE threads can deform the stainless steel shell or crack the solder joints if mechanical stress couples back through the backshell. Field service manuals typically specify 15–25 in·lbf torque for the 806-040-Z120E28G28SCE; undersized fasteners or inadequate washers can lead to connector loosening and intermittent faults. Maintenance procedures must account for the solder-terminated contacts; if the 806-040-Z120E28G28SCE requires field replacement, rework stations capable of controlled desoldering and re-soldering without damaging the contact array are necessary.
What is the relationship between the 806-040-Z120E28G28SCE's shell size (20-28) and mating plug connector specifications in the Mighty Mouse 806 product family?
The shell size designation 20-28 for the 806-040-Z120E28G28SCE indicates compatibility with plug receptacles of matching size and orientation (E-series); mixing shell sizes or orientations results in physical interference or misalignment. The 806-040-Z120E28G28SCE (receptacle configuration) mates exclusively with complementary 806-series plug connectors of identical size and keying; cross-compatibility with other circular connector families (Amphenol PT, Fischer DT, etc.) is not supported. During design-in, harness designers must maintain a consolidated bill-of-materials specifying the plug partner for the 806-040-Z120E28G28SCE to prevent assembly errors or field incompatibility during aircraft maintenance.
How do REACH compliance and material composition of the 806-040-Z120E28G28SCE influence supply chain decisions for aerospace programs?
The 806-040-Z120E28G28SCE is designated REACH Unaffected, indicating that its materials (stainless steel shell, copper alloy contacts, gold plating) do not contain substances of very high concern (SVHC) requiring authorization or restriction under EU chemical regulations. This status simplifies import compliance for European aerospace subcontractors and OEMs. RoHS applicability is marked Not Applicable, as aerospace connectors are historically exempt from consumer electronics regulations; however, program-specific material restrictions (such as cadmium-free or halogen-free requirements) may apply independently. Glenair's material traceability documentation for the 806-040-Z120E28G28SCE—including mill certificates for stainless steel and copper alloy—supports aerospace supplier audits and long-term compliance verification across global supply chains.
What are the typical mating cycle limits and wear-out mechanisms for the 806-040-Z120E28G28SCE's gold-plated socket contacts?
Socket contacts on the 806-040-Z120E28G28SCE experience gradual plating wear during repeated insertion; published cycling limits typically range from 500–1,000 cycles depending on mating pressure and contact resistance requirements. The 50µin gold plating on the 806-040-Z120E28G28SCE provides modest cycling margin; after 500 cycles, microscopic copper may become visible under magnification if contact wear accelerates due to misalignment or high insertion force. For laboratory test equipment or maintenance connectors (expected <50 cycles over platform lifetime), the 806-040-Z120E28G28SCE meets durability targets. For trainer simulators or ground support equipment undergoing frequent reconfiguration (>200 cycles), upgrade to thicker gold plating or hardened contact materials should be evaluated to extend service life without premature contact replacement.
How do temperature extremes (-65°C to 175°C) affect the mechanical and electrical properties of solder joints on the 806-040-Z120E28G28SCE during qualification testing?
Aerospace qualification of the 806-040-Z120E28G28SCE involves thermal shock testing (-65°C to 175°C, typically 10–15 cycles) to validate solder joint fatigue resistance. Lead-free solder (SAC 305 or equivalent) used on the 806-040-Z120E28G28SCE exhibits higher creep strain during dwell at 175°C compared to legacy Pb/Sn alloys, necessitating solder joint geometry optimization (fillet angle, mass, strain relief) to limit fatigue damage. The stainless steel shell and copper alloy contacts of the 806-040-Z120E28G28SCE exhibit minimal coefficient-of-thermal-expansion (CTE) mismatch, reducing differential stress at the solder interface relative to alternative materials. Post-qualification electrical continuity checks and visual inspection (X-ray imaging for internal solder voids) on the 806-040-Z120E28G28SCE confirm that thermal cycling does not degrade contact resistance below the datasheet limit of 10mΩ per pair.
What distinguishes the 806-040-Z120E28G28SCE from higher-current or higher-density connector alternatives when evaluating trade-offs for next-generation avionics power distribution?
The 806-040-Z120E28G28SCE's 5A per-contact rating and 28-position count suit distributed low-to-moderate power and signal multiplexing in legacy and mid-generation avionics architectures. Higher-current alternatives (10–20A per contact) in the Mighty Mouse 806 family reduce connector count at the cost of increased connector size, mass, and backshell complexity. Higher-density connectors (38–50 positions at smaller shell size) compress contact spacing, increasing crosstalk risk for analog and RF signals. The 806-040-Z120E28G28SCE represents a balanced middle ground: sufficient power capability for most non-primary-bus applications, proven environmental performance, and mature supply chain integration. Design teams modernizing existing 806-040-Z120E28G28SCE installations typically retain compatibility rather than redesign harnesses, unless new power demands or signal bandwidth requirements push designers toward larger series or alternative connector technologies.
How should the aluminum backshell and stainless steel shell of the 806-040-Z120E28G28SCE be managed to prevent galvanic corrosion at their interface?
The 806-040-Z120E28G28SCE pairs a stainless steel shell with an aluminum backshell material, creating a galvanic couple if moisture and electrolytes accumulate at their junction. Glenair designs the 806-040-Z120E28G28SCE interface with anodized aluminum and passivated stainless, which reduces galvanic potential; however, best practices for the 806-040-Z120E28G28SCE include applying conformal coating or silicone grease to the shell-to-backshell interface to block moisture ingress. In high-humidity aerospace environments (coastal bases, marine patrol aircraft), periodic visual inspection of the 806-040-Z120E28G28SCE connector exterior for white corrosion deposits on the aluminum backshell is recommended. If deposits appear, connector disassembly and cleaning may be required; preventive potting or sealing of the 806-040-Z120E28G28SCE cable entry during initial assembly significantly extends maintenance intervals.

Parts with Similar Specifications

The three parts on the right have similar specifications to Glenair 806-040-Z120E28G28SCE

Product Attribute 806-040-Z120E28G28SCC 806-040-Z120E28G28SCB 806-040-Z120E28G28STE 806-040-Z120E28G28SCD
Part Number 806-040-Z120E28G28SCC 806-040-Z120E28G28SCB 806-040-Z120E28G28STE 806-040-Z120E28G28SCD
Manufacturer Glenair Glenair Glenair Glenair
Series - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

806-040-Z120E28G28SCE Datasheet PDF

Download 806-040-Z120E28G28SCE pdf datasheets and Glenair documentation for 806-040-Z120E28G28SCE - Glenair.

Datasheets
Mighty Mouse Series 80.pdf

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Evaluation: 10 Articles

  • ECUb***h
    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

  • RS48***ieldTech
    Sep 16, 2026

    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

  • Logi***b_Chris
    Sep 8, 2026

    Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    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.

  • Andr***PCBLab
    Aug 28, 2026

    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.

  • Leat***O'Keefe
    Aug 20, 2026

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

  • Ilen***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
    Aug 17, 2026

    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
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    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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806-040-Z120E28G28SCE

Glenair
98D-806-040-Z120E28G28SCE

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