January 30, 2007 WIDEBAND RF TRANSFORMER PT108-1 RF Transformer Features y y y y y y y Designed for use in Wideband R.F. Applications Frequency Range 4.5 to 800MHz bandwidth Excellent Insertion Loss Operating Temperature Range -40ºC to +85ºC Miniature Surface Mount Package Custom Impedance ratios available Tinned Leads with Leaded Solder is Available (note 5) ELECTRICAL SPECIFICATIONS AT 25°C Part Number Ratio Impedance Pri:Sec (±2%) Turns Ratio Pri:Sec (±2%) PT108-1 1:1 1:1 Bandwidth (MHz TYP) Schematic 4.5-800 A OUTLINE DIMENSIONS .201 1 PT108-1 – Typical Insertion Loss @ 25°C 3 .173 6 .252 4 .059 TOP VIEW 1 A .135 MAX 6 4 3 Schematic Notes: 1. 2. 3. 4. 5. 6. Dimensions are shown in inches/millimeters Unless otherwise specified, tolerance: ±0.010 / 0,25 Bandwidth specifications are typical in a 50Ω system Bandwidth is referenced to mid-band loss Impedance and turns ratio are specified primary : secondary For non-RoHS parts replace PT prefix with 42- (e.g. PT108-1 becomes 42-108-1) Terminal finish is compliant to RoHS requirements. Solder in accordance with J-STD-020C. DATATRONIC: 28151 Highway 74, Romoland, CA 92585 Tel: 951-928-7700 Toll Free: 888-889-5391 Fax: 951-928-7701 Email: [email protected] 499 King’s Road, Hong Kong Tel: (852) 2562 3858, (852) 2564 8477 Fax: (852) 2565 7214, (852) 2563 1290 All specifications are subject to change without notice.