Surface Mount T4-1-KK81+ T4-1-KK81 RF Transformer 50 0.2 to 350 MHz Features Maximum Ratings Operating Temperature * wideband, 0.2 to 350 MHz * good return loss * also available with flat-pack (W38), plug-in (X65) leads -20C to 85C Storage Temperature -55C to 100C RF Power 0.25W DC Current 30mA +RoHS Compliant * impedance matching * receivers/transmitters * balance antennas Pin Connections 4 PRIMARY 6 SECONDARY DOT 3 SECONDARY 1 SECONDARY CT 2 NOT USED 5 The +Suffix identifies RoHS Compliance. See our web site for RoHS Compliance methodologies and qualifications Applications Permanent damage may occur if any of these limits are exceeded. PRIMARY DOT CASE STYLE: KK81 PRICE: $3.25 ea. QTY (1-9) Transformer Electrical Specifications RATIO FREQUENCY (MHz) (Secondary/Primary) 4 Outline Drawing INSERTION LOSS* 0.2-350 3 dB MHz 2 dB MHz 1 dB MHz 0.2-350 0.35-300 2-100 *Insertion Loss is referenced to mid-band loss, 0.6 dB typ. Typical Performance Data FREQUENCY (MHz) 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 INPUT R. LOSS (dB) 2.06 1.33 1.13 0.92 0.72 0.59 0.73 0.91 1.23 1.34 3.31 7.01 9.36 12.67 15.24 17.34 15.07 12.93 12.36 13.08 0.20 0.35 0.50 1.00 2.00 5.00 100.00 175.10 300.00 350.00 Outline Dimensions ( inch mm ) A .30 7.62 INSERTION LOSS (dB) T4-1-KK81 INPUT RETURN LOSS T4-1-KK81 INSERTION LOSS 25 RETURN LOSS (dB) Config. A INSERTION LOSS (dB) 5.0 4.0 3.0 2.0 1.0 0.0 20 15 10 5 0 0 50 100 150 200 250 300 350 0 FREQUENCY (MHz) 50 100 150 200 250 300 350 FREQUENCY (MHz) Mini-Circuits (R) ISO 9001 ISO 14001 AS 9100 CERTIFIED P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661 The Design Engineers Search Engine For detailed performance specs & shopping online see web site (R) Provides ACTUAL Data Instantly at minicircuits.com IF/RF MICROWAVE COMPONENTS Notes: 1. Performance and quality attributes and conditions not expressly stated in this specification sheet are intended to be excluded and do not form a part of this specification sheet. 2. Electrical specifications and performance data contained herein are based on Mini-Circuit's applicable established test performance criteria and measurement instructions. 3. The parts covered by this specification sheet are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, "Standard Terms"); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits' website at www.minicircuits.com/MCLStore/terms.jsp. REV. A M98898 T4-1-KK81 IG/TD/CP 130513