Surface Mount TT25-1+ TT25-1 RF Transformer 50Ω 0.02 to 30 MHz Features Maximum Ratings Operating Temperature -20°C to 85°C Storage Temperature 55°C to 100°C RF Power 250mW DC Current 30mA Pin Connections PRIMARY DOT 4 PRIMARY 6 PRIMARY CT 5 SECONDARY DOT 3 SECONDARY 1 SECONDARY CT 2 • excellent return loss • also available with surface mount gull wing (KK81) plug-in (X65) leads CASE STYLE: W38 PRICE: $9.95 ea. QTY (1-9) + RoHS compliant in accordance with EU Directive (2002/95/EC) Applications • HF • radio communication systems • impedance matching • ham radio The +Suffix identifies RoHS Compliance. See our web site for RoHS Compliance methodologies and qualifications. Transformer Electrical Specifications Ω RATIO FREQUENCY (MHz) INSERTION LOSS* (Secondary/Primary) 25 Outline Drawing 0.02-30 3 dB MHz 2 dB MHz 1 dB MHz 0.02-30 0.05-20 0.1-10 * Below 0.05 MHz, Insertion Loss is specified for room temperature and above. Typical Performance Data FREQUENCY (MHz) B .27 6.86 C .23 5.84 D .010 0.25 E .042 1.07 G .100 2.54 H .05 1.27 J .09 2.29 K .31 7.87 L wt .036 grams 0.50 0.91 INPUT R. LOSS (dB) 2.72 1.86 1.18 0.80 0.48 0.37 0.27 0.30 1.46 2.60 6.13 7.95 10.45 13.16 19.05 25.11 28.34 12.69 2.94 2.00 0.02 0.03 0.05 0.07 0.15 0.30 1.01 4.66 20.13 30.00 Outline Dimensions ( inch mm ) A .30 7.62 INSERTION LOSS (dB) F .020 0.51 TT25-1 INPUT RETURN LOSS TT25-1 INSERTION LOSS 50 RETURN LOSS (dB) Config. B INSERTION LOSS (dB) 5.0 4.0 3.0 2.0 1.0 0.0 0.01 0.1 1 FREQUENCY (MHz) 10 100 40 30 20 10 0 0.01 0.1 1 10 Mini-Circuits ® EW ALL N minicircuits.com ISO 9001 ISO 14001 CERTIFIED P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661 For detailed performance specs & shopping online see Mini-Circuits web site The Design Engineers Search Engine Provides ACTUAL Data Instantly From MINI-CIRCUITS At: www.minicircuits.com RF/IF MICROWAVE COMPONENTS 100 FREQUENCY (MHz) REV. A M98898 TT25-1 IG/TD/CP 070718