telecommunications isolation transformers?urface-mount 7 smd6xx-05: single channel, dual transformer (small footprint) all dimensions are ?.005 unless otherwise noted. all dimensions are in inches. part number t urns ratio (pri:sec) t ransmit receive smd601-05 1:1.15ct 1ct:2ct SMD602-05 1ct:2ct 1ct:2ct smd603-05 1ct:2ct 1:1.36ct smd604-05 1:1/1.26 1ct:2ct smd605-05 1ct:1.15ct 1ct:1.15ct smd606-05 1ct:1ct 1ct:2ct smd607-05 1ct:1.41ct 1ct:1.41ct smd608-05 1ct:1ct 1ct:1ct smd609-05 1ct:1ct 1ct:1.36ct smd610-05 1ct:1.15ct 1ct:1ct smd612-05 1ct:2.42ct 1ct:2.42ct smd613-05 1ct:2.42ct 1ct:1ct smd614-05 1ct:2ct 1ct:2ct smd615-05 1ct:1.36ct 1ct:1.36ct smd618-05 1:1.15ct 1:1ct smd619-05 1:1.58ct 1:1ct smd620-05 1:2.4ct 1:2ct smd621-05 1:2.3ct 1:1ct smd622-05 1:1.18ct 1:1ct smd623-05 1:1.26ct 1:1.26ct smd624-05 1:1.58ct 1:1.58ct smd625-05 1ct:1:0.8 1ct:1:0.8 smd626-05 1ct:2.4ct 1ct:1ct smd6xx-05 part number table notes: 1) p/n smd604-05 provides two turns ratios. for 1:1, use secondary pins 2-3. for 1:1.26, use secondary pins 1-3. 2) p/n smd625-05 has split secondary windings. for 1:1, use secondary pins 1-2 and pins 5-6. for 1:0.8, use secondary pins 3-4 and pins 7-8. 3) part numbers may be modified as follows: smd6xxet-05 indicates -40c to +85c operation ratio number ohms max 0.8 0.7 1 0.7 1.15 0.8 1.18 0.8 1.26 0.8 1.36 0.8 ratio number ohms max 1.41 1.0 1.5 1.1 1.58 1.1 2 1.2 2.3 1.5 2.4 1.5 winding dc resistance for example: smd603-05 has 0.70 ? max transmit primary 1.20 ? max transmit secondary 0.70 ? max receive primary 0.80 ? max receive secondary t1/e1 electrical characteristics @ 25? primary inductance*: 1.2mh min, 1.5 typ for et parts 0.6mh min for et parts @ -40? leakage inductance*: 0.6? max interwinding capacitance*: 35pf max dielectric isolation (pri:sec): 1500 vrms min * all impedance measurements are made with 0.1vrms@100khz
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