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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

 N/A Part number for reference only. Consult factory for actual part number.

Connector Series

 N/A Amphenol ARINC 404 Filter Connectors

ARINC Series

 N/A ARINC 404

Shell Style

 N/A Receptacle

Termination Style

 N/A PC Tails

Shell Size

 N/A Single Bay, polarized

Filter Circuit

 N/A C Filter-Circuit.JPG

Capacitance

 N/A 22000 to 40000 pF

Plating

 N/A Electroless Nickel

Mounting

 N/A AJ - 4 corners 4-40UNC-3B deformed thread and #4-40 attaching tabs Mounting-Modifier.JPG

Custom Requirement

 N/A No

Cavity A

Insert

 N/A
57P

First Contact Size

N/A #20

Number of First Contacts

N/A 57

Connector Layout Arrangements

Connector Layout Designator Number

 N/A 025

Polarizing Position

Polarizing Position

 N/A 10 Polarazing-Position.JPG

Left Post

 N/A
5

Center Post

 N/A
4

Right Post

 N/A
1

Performance Specifications

Contact resistance Size 22:

 N/A 8.0 milliohms, initial (max.) 11.0 milliohms, conditioned (max.)

Contact resistance Size 20:

 N/A 7.0 milliohms, initial (max.) 8.5 milliohms,conditioned (max.)

Contact resistance Size 16:

 N/A 7.0 milliohms, initial (max.) 8.5 milliohms,conditioned (max.)

Contact resistance Size 12:

 N/A 2.0 milliohms, initial (max.) 2.5 milliohms, conditioned (max.)

Durability

 N/A 500 cycles min. - mating & unmating

Temperature Range

 N/A -65°C (-86° F) to +125°C (+275° F)

Vibration:

 N/A 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

 N/A 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

 N/A 100 VDC

Dielectric Withstanding Voltage

 N/A 300 VDC

Insulation Resistance

 N/A 10 Gohm

Current Ratings, Size 22

 N/A 5 Amps

Current Ratings, Size 20

 N/A 7.5 Amps

Current Ratings, Size 16

 N/A 13 Amps

Current Ratings, Size 12

 N/A 23 Amps

Filter RF Current Ratings

 N/A 3 Amps

Insertion Loss, 0.1 MHz

 N/A -

Insertion Loss, 1 MHz

 N/A 10 dB min.

Insertion Loss, 10 MHz

 N/A 26 dB min.

Insertion Loss, 100 MHz

 N/A 45 dB min.

Insertion Loss, 1000 MHz

 N/A 50 dB min.

Material Specifications

Shells

 N/A Aluminum alloy

Retaining plates

 N/A Aluminum alloy per QQ-A-225/8

Polarizing keys

 N/A Aluminum alloy electroless nickel

Insulator material

 N/A Glass filled plastic

Inserts, grounded

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

Screws, lockwashers, washers

 N/A Stainless steel - passivated

Contact bodies

 N/A copper alloy gold plate

Contact retention clips

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

Seals & grommets

 N/A Silicone/fluorosilicone elastomer blend per MIL-R-25988

O-Rings

 N/A Silicone/fluorosilicone rubber, colored blue

EMI springs

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