SBT303 Series – SMD BALUN TRANSFORMER Rev. A A. Electrical Specifications: P/N Winding Ratio Insertion Loss 3dB Max. SBT303-11 SBT303-21 1:1 2:1 @ 5~400 MHz @ 5~250 MHz B. Dimensions: mm (Inch) Series a b c d e f g h i j SBT303 6.9 (0.272) 6.9 (0.272) 1.7 (0.067) 5.7 (0.224) 4.0 (0.157) Max. 0.6 (0.024) ±0.15 (0.006) 1.2 (0.047) Max. 2.0 (0.079) ±0.3 (0.012) 4.4 (0.173) Tol. 2.0 (0.079) ±0.3 (0.012) Typ. Typ. Typ. Typ. Max. C. Test Circuit: D. Features: a. Base pin terminal treated, allowing mounting ‘as is’ on a PCB. b. Custom Specifications available. c. MSL: Level 1. E. Applications: 1. Double balance mixers, broad-band transformers, impedance transformers, etc. 2. Common Mode Choke Coils. F. Characteristics Curve: Frontier Electronics Corp.® http://www.frontierusa.com Page 1 of 2 667 E. Cochran St., Simi Valley, CA 93065 Phone: 1-805-522-9998, Fax: 1-805-522-9989 SBT303 Series – SMD BALUN TRANSFORMER Frontier Electronics Corp.® http://www.frontierusa.com Page 2 of 2 Rev. A 667 E. Cochran St., Simi Valley, CA 93065 Phone: 1-805-522-9998, Fax: 1-805-522-9989