Datasheet

Micrel, Inc.
KSZ8081MNX/KSZ8081RNB
August
19, 2015 67
Revision 1.4
Table 25 lists recommended magnetic characteristics.
Table 25. Magnetics Selection Criteria
Parameter Value Test Condition
Turns ratio 1 CT : 1 CT
Open-circuit inductance (minimum) 350µH 100mV, 100kHz, 8mA
Insertion loss (typical) –1.1dB 100kHz to 100MHz
HIPOT (minimum) 1500Vrms
Table 26 is a list of compatible single-port magnetics with separated transformer center tap pins on the PHY chip side that
can be used with the KSZ8081MNX/RNB.
Table 26. Compatible Single-Port 10/100 Magnetics
Manufacturer Part Number Temperature Range Magnetic + RJ-45
Bel Fuse S558-5999-U7 0°C to 70°C No
Bel Fuse SI-46001-F 0°C to 70°C Yes
Bel Fuse SI-50170-F 0°C to 70°C Yes
Delta LF8505 0°C to 70°C No
HALO HFJ11-2450E 0°C to 70°C Yes
HALO TG110-E055N5 –40°C to 85°C No
LANKom LF-H41S-1 0°C to 70°C No
Pulse H1102 0°C to 70°C No
Pulse H1260 0°C to 70°C No
Pulse HX1188 –40°C to 85°C No
Pulse J00-0014 0°C to 70°C Yes
Pulse JX0011D21NL –40°C to 85°C Yes
TDK TLA-6T718A 0°C to 70°C Yes
Transpower HB726 0°C to 70°C No
Wurth/Midcom 000-7090-37R-LF1 –40°C to 85°C No