Surface Mount RFTransformer 50Ω T5-1T-KK81+ T5-1T-KK81 0.3 to 300 MHz Maximum Ratings Features Operating Temperature Storage Temperature RF Power DC Current -20°C to 85°C -55°C to 100°C 0.25W 30mA • wideband, 0.3 to 300 MHz • good return loss • also available with flat-pack (W38), plug-in (X65) leads CASE STYLE: KK81 PRICE: $4.95 ea. QTY (1-9) Pin Connections PRIMARY DOT PRIMARY SECONDARY DOT SECONDARY SECONDARY CT NOT USED 4 6 3 1 2 5 + RoHS compliant in accordance with EU Directive (2002/95/EC) Applications • push-pull amplifiers • impedance matching See our web site for RoHS Compliance methodologies and qualifications. Transformer Electrical Specifications Ω RATIO MODEL NO. Outline Drawing T5-1T-KK81(+) FREQUENCY (MHz) 5 INSERTION LOSS* 0.3-300 3 dB MHz 2 dB MHz 1 dB MHz 0.3-300 0.6-200 5-100 * Insertion Loss is referenced to mid-band loss, 0.7 dB typ. Typical Performance Data Outline Dimensions ( inch mm ) A .30 7.62 B .27 6.86 C .23 5.84 D .010 0.25 E .042 1.07 F .020 0.51 G .100 2.54 H .05 1.27 J .05 1.27 K .020 0.51 L .036 0.91 M .26 6.60 N .575 14.61 P .600 15.24 Q .125 3.18 R .050 1.27 S .100 2.54 wt grams 0.50 FREQUENCY (MHz) INSERTION LOSS (dB) INPUT R. LOSS (dB) 0.30 0.70 3.00 28.00 73.00 120.00 170.00 220.00 270.00 300.00 1.91 1.21 0.79 0.76 0.87 0.96 1.05 1.15 1.28 1.33 6.84 12.33 16.14 16.70 17.90 18.95 19.50 18.75 16.62 15.08 T5-1T-KK81 INSERTION LOSS INSERTION LOSS (dB) 2.5 Config. A 2.0 1.5 1.0 0.5 0.0 0.1 1 10 100 1000 FREQUENCY (MHz) ® Mini-Circuits INTERNET http://www.minicircuits.com P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661 Distribution Centers NORTH AMERICA 800-654-7949 • 417-335-5935 • Fax 417-335-5945 • EUROPE 44-1252-832600 • Fax 44-1252-837010 Mini-Circuits ISO 9001 & ISO 14001 Certified REV. A M98898 T5-1T-KK81 IG/TD/CP 051128