YF28 Umbilical Connector

  • Threaded coupling mating and pull rod mechanical demating.
  • Its features flame-retardant and sealing functions.
  • Ethernet Contacts, 1553B Bus Contacts, Coaxial Contacts or mixing contacts.
  • The mating is aligned by key to avoid mis-mating.
  • Solder Cup
  • Circuit mating between military electronic systems and ground equipment.
  • Per Q/Ag 1.179-2008 ”YF28-40 Umbilical Connector Detailed Specifications
Category:

Specifications

Shell Aluminum Alloy 2A12-T4 (Chemical Nickel Plating)
Insulator Thermoplastic Material FX-502
Sealing Silicone Rubber Materials, Polyurethane Adhesive
Contact Gold-Plated Copper Alloy
Mechanical Life 500 cycles
Mechanical Demating Force 39 N ~ 100 N
Sinusoidal Vibration Frequency 10 ~ 50 Hz, Full Amplitude 2 mm

Frequency 50 ~ 2000 Hz, Acceleration 200 m/s²

Constant Frequency Vibration Frequency 50Hz, 260Hz, Acceleration 200 m/s²
Shock 980 m/s²
Acceleration 350 m/s²
Operating Temperature -40℃ ~ +85℃
Salt Spray Test 48 h
Relative Humidity At 40℃ ± 2℃: 90% ~ 95%
Operating Pressure 6.67 Pa ~ 200 kPa
Electromagnetic Shielding Not less than 60 dB (50k V/m, 0 ~ 100 MHz)
Sealed Socket 2 MPa (Except for High-frequency Contacts)
High-temperature Flame After withstanding 2000℃ for 0.6 seconds, insulation resistance between each 2 contacts on the rear of socket is not less than 20 MΩ in 70 seconds under hot airflow of 80 kcal/m².

Electrical Ratings

Contact Characteristics

Pin Diameter

1 mm 1.5 mm Ethernet 8#Dual Coaxial 12#Coaxial
Operating Current 5 A 10 A

Contact Resistance

≤5 mΩ ≤5 mΩ
Number of Contacts 24 12 1 2

1

Note: When multiple contacts are operating simultaneously, the rated current decline rate meets the requirements in the table below.

Number of Contacts

1 ~ 10 11 ~ 20 21 ~ 30 31 ~ 50
Decline Rate % 0% 10% 20%

30%

Insulation Resistance

1 atm

Humid and Heat High Temperature
≥1000 MΩ ≥20 MΩ

≥500 MΩ

Dielectric Withstand Voltage

Sea ​​Level

Low Pressure Humid and Heat
AC 1000 Vrms AC 200 Vrms

AC 250 Vrms

How to Order

YF28 how to order

Connector Specifications

Quality Grade

Plug Type Part Number of Socket
J Grade YF28-40TJ

YF28-40ZK

YF28-40 Contact Arrangement (Front View of Plug Mating Surface)

YF28 Umbilical Connector YF28 40 Contact Arrangement Front View of Plug Mating Surface

Contact Type

Symbol Contact Specifications Number of Contacts Contact Soldering Cup
Inner Diameter Section Area

Solderable Area

Ordinary Contact

YF28 symbol 1 Φ1.0mm 24 Φ1.5 mm 1.77 mm2 1.24 mm2
YF28 symbol 2 Φ1.5mm 12 Φ1.8 mm 2.54 mm2

1.78 mm2

Coaxial Contact

YF28 symbol 3 12#Coaxial 1 ——
YF28 symbol 4 8#Coaxial 2

——

Fiber Optic Contact

YF28 symbol 5 Ethernet Socket 1

——

Dimension

Plug YF28-40TJ

YF28 Umbilical Connector Plug YF28 40TJ

Socket YF28-40ZK

YF28 Umbilical Connector Socket YF28 40ZK

Plug/Socket YF28-40TJ/ZK

YF28 Umbilical Connector Plug Socket YF28 40TJZK

 

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