Specifications
| Shell | Aluminum Alloy |
| Shell Finishing | Electroless Nickel Plating
Surface painting, paint colors are red (h1), orange (h2), military green (h3), and sky blue (h4) |
| Insulator | Thermosetting Plastic |
| Sealing Ring | Silicone Rubber, Nitrile Rubber |
| Contact | Gold-Plated Copper Alloy (Solder Cup) |
| Mechanical Life | 300 cycles |
| Mechanical Demating Force | 58.8 N ~ 117.6 N |
| Sinusoidal Vibration | Frequency 10 ~ 50 Hz, Amplitude 1.5 mm
Frequency 50 ~ 2000 Hz, Acceleration 147 m/s² |
| Random Vibration | Power Spectral Density 0.4 G2/Hz
Total Acceleration RMS 25 G (YF2-78) |
| Shock | Peak Acceleration: 980 m/s² (YF2-57)
Peak Acceleration: 1176 m/s² (YF2-78) |
| Acceleration | Peak Acceleration: 245 m/s² (YF2-57)
Peak Acceleration: 490 m/s² (YF2-78) |
| Collision | Peak Acceleration: 392 m/s² |
| Operating Temperature | -40℃ ~ +85℃ (YF2-57)
-55℃ ~ +125℃ (YF2-78) |
| Relative Humidity | At 40℃ ± 2℃: 92% ~ 98% |
| Operating Pressure | 101.3 Kpa ~ 2.7Pa (YF2-57)
101.3 Kpa ~ 1.1Pa (YF2-78) |
| Sealing | 0.245 MPa (YF2-57)
0.3 MPa (YF2-78) |
| Salt Spray Test | 48 h (YF2-78) |
Note: Vibration, shock, and acceleration performance decrease by 50% during mating.
Electrical Ratings
Contact Resistance and Rated Current
|
Code |
Pin Diameter | Operating Current | Contact Resistance | |
|
Before Life |
Before Life |
|||
| YF2-57 | 1 mm | 3 A | ≤10 mΩ |
≤15 mΩ |
|
YF2-78 |
0.8 mm | 3 A | ≤8 mΩ | ≤15 mΩ |
| 1 mm | 5 A | ≤6 mΩ |
≤12 mΩ |
|
Insulation Resistance
|
Code |
1 atm | High Temperature | Humid and Heat |
| YF2-57 | ≥1000 mΩ | ≥100 mΩ |
≥20 mΩ |
|
YF2-78 |
≥1500 mΩ | ≥500 mΩ |
≥60 mΩ |
Dielectric Withstand Voltage
|
Code |
1 atm | Low Pressure |
| YF2-57 | AC 1000 Vrms |
AC 200 Vrms |
|
YF2-78 |
AC 1500 Vrms |
AC 150 Vrms |
How to Order
Eg: YF2-57T: This indicates a YF2 type 57 type umbilical connector plug.
Model Specifications
|
Code |
Feature |
| YF2-57T |
57 Pin Plug Mating only with sockets that have the same layout |
|
YF2-78T |
78 Pin Plug
Mating only with sockets that have the same layout |
| YF2-57Z |
57 Pin Socket Mating only with sockets that have the same layout |
|
YF2-78Z |
78 Pin Socket Mating only with sockets that have the same layout |
YF2 Type Contact Arrangement (Front View of Socket Mating Surface)
|
57 pin: 55-Φ1 contact (3A)
78 pin 78 pin: 23-Φ1 contact (5A) / 55-Φ0.8 contact (3A) |
57 pin 
|
Pin Diameter |
Φ0.8 | Φ1 |
| Symbol |  |
 |
Dimension
YF2-57T Plug
 |
YF2-57Z Plug
 |
YF2-57 Dimension after Mating
 |
YF2-78T Plug
 |
YF2-78Z Plug
 |
YF2-78 Dimension after Mating
 |
