LL6702 is a hybrid transformer for telephone applications. It is built using a C-core, and meets requirements for high isolation between windings. The LL6702 has an extremely low leakage inductance and thus a flat frequency response curve. This makes it easy to design the balancing network for good transhybrid loss in the entire frequency range.
Turns ratio: 1.5 , 1.5 : 1 + 1
Dims (Length x Width x Height above PCB (mm)): 47 x 31 x 15
Spacing between pins: 5.08 mm (0.2")
Spacing between rows of pins: 30.48 mm (1.2")
Weight: 70 g
Rec. PCB hole diameter: 1.5 mm
Static resistance of each primary (pins 1-4): 9.2 ohms ?
Static resistance of each balance (pins 2-5): 9.5 ohms??
Leakage inductance of secondaries (sec. in series): 0.3 mH
Max. DC Current: 60 mA
Transhybrid loss (laboratory conditions): 50 dB, 10 Hz - 10 kHz
Isolation between primary and balance windings/ between primary 2 kV / 4 kV
and secondary windings:
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