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ARINC 404 connectors and the Military equivalent MIL-DTL-81659 are a long time standard in both military and commercial aviation LRU’s. These connectors come in 4 sizes that can hold up to 424 individual contacts. Amphenol ACC is the world leader in the filtering of this series and has many capabilities to meet our customers varied requirements. This includes, but is not limited to, Pi, C, LC, T filters as well as the addition of transient suppression diodes to allow for the successful EMC test requirements of DO-160.
Unit of Measure

Specifications

Part Number Note

 Part number for reference only. Consult factory for actual part number.

Connector Series

 Amphenol ARINC 404 Filter Connectors

ARINC Series

 ARINC 404

Shell Style

 Receptacle

Termination Style

 PC Tails

Shell Size

 Triple Bay, polarized

Filter Circuit

 Pi Filter-Circuit.JPG

Capacitance

 16000 to 32000 pF

Plating

 Olive Drab

Mounting

 DG - 4 corners .210 mounting slots Mounting-Modifier.JPG

Custom Requirement

 No

Cavity A

Insert
45S

First Contact Size

#20

Number of First Contacts

45

Cavity B

Insert
45S

First Contact Size

#20

Number of First Contacts

45

Cavity C

Insert
45S

First Contact Size

#20

Number of First Contacts

45

Connector Layout Arrangements

Connector Layout Designator Number

 022

Polarizing Position

Polarizing Position

 56 Polarazing-Position.JPG

Left Post
1

Center Post
3

Right Post
3

Performance Specifications

Contact resistance Size 22:

 8.0 milliohms, initial (max.) 11.0 milliohms, conditioned (max.)

Contact resistance Size 20:

 7.0 milliohms, initial (max.) 8.5 milliohms,conditioned (max.)

Contact resistance Size 16:

 7.0 milliohms, initial (max.) 8.5 milliohms,conditioned (max.)

Contact resistance Size 12:

 2.0 milliohms, initial (max.) 2.5 milliohms, conditioned (max.)

Durability

 500 cycles min. - mating & unmating

Temperature Range

 -65°C (-86° F) to +125°C (+275° F)

Vibration:

 MIL-STD-1344, Method 2005.1, condition value E: random - 16.4G minimum severity: 8 hours in each of 3 mutually perpendicular planes with 100mA electrical load. No visible damage, breakage, cracking or loosening of parts and no discontinuities exceeding 1 microsecond.

Shock

 MIL-STD-1344, Method 2004.1, test condition A: Three shocks in each direction along each of 3 axes, mutually perpendicular to each other. No visible damage,breakage, cracking or loosening of parts and no discontinuities exceeding 1 microsecond.

Working Voltage

 200 VDC

Dielectric Withstanding Voltage

 500 VDC

Insulation Resistance

 10 Gohm

Current Ratings, Size 22

 5 Amps

Current Ratings, Size 20

 7.5 Amps

Current Ratings, Size 16

 13 Amps

Current Ratings, Size 12

 23 Amps

Filter RF Current Ratings

 3 Amps

Insertion Loss, 0.1 MHz

 -

Insertion Loss, 1 MHz

 8 dB min.

Insertion Loss, 10 MHz

 28 dB min.

Insertion Loss, 100 MHz

 62 dB min.

Insertion Loss, 1000 MHz

 68 dB min.

Material Specifications

Shells

 Aluminum alloy

Retaining plates

 Aluminum alloy per QQ-A-225/8

Polarizing keys

 Aluminum alloy electroless nickel

Insulator material

 Glass filled plastic

Inserts, grounded

 Aluminum alloy per QQ-A-225/8 electroless nickel plated per MIL-C-26074

Screws, lockwashers, washers

 Stainless steel - passivated

Contact bodies

 copper alloy gold plate

Contact retention clips

 Copper, gold plated per MIL-G-45204, Type II, Grade C, Class 1

Seals & grommets

 Silicone/fluorosilicone elastomer blend per MIL-R-25988

O-Rings

 Silicone/fluorosilicone rubber, colored blue

EMI springs

 Beryllium copper per QQ-C-533, electroless nickel plated per MIL-C-26074