This part is a kind of semiconductor called T-11303.

Function of this product has (T-11300 - T-11308) General Purpose Dual Package Transformers.

Manufacturers : Rhombus Industries

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General Purpose Dual Package Transformers High Isolation 2000 Vrms (T-114XX Series) Fast Rise Times Economical: 2 Transformers Per Package Reduce Printed Circuit Board Space Auto-Insertable Transfer Molded DIP Surface Mount Versions (Add Suffix "G" to P/N) ELECTRICAL SPECIFICATIONS AT 25o C Isolation (Min.) 2000 VRMS 500 VRMS Part No. Part No. T-11300 T-11301 T-11302 T-11303 T-11304 T-11305 T-11306 T-11307 T-11308 T-11400 T-11401 T-11402 T-11403 T-11404 T-11405 T-11406 T-11407 T-11408 Turns Ratio (+5%) 1:1 1:1 1:1 1:1 1:1 1:1 1:1 1:1 1:1 OCL (µH) (+20%) 30 35 50 75 80 100 150 200 250 E-T VµS min. 1.8 1.8 2.1 2.3 2.3 2.7 3.0 3.5 3.5 Rise Time (ns max) 3.0 3.0 3.0 3.0 3.0 3.5 3.5 3.5 3.5 Pri./Sec. CW/W (pF max) 8 8 9 10 10 10 12 15 15 T-11300 9301 SCHEMATIC LL (µH) max. .20 .20 .20 .20 [ ... ]

T-11303 PDF Datasheet Download