Surface Mount RF Transformer 75 to 50Ω TC1.33-282+ 5 to 2800 MHz The Big Deal • Very wide bandwidth, 5 to 2800 MHz • Very good return loss over entire band • Convenient 50/75Ω matching over a wide range of frequencies CASE STYLE: AT224-1 Product Overview The TC1.33-282+ is a mini wideband tri-filar transformer, measuring approximately 4 mm on all sides. The plastic substrate, 5-pad design is aqueous washable and RoHS compliant, featuring a square core and all welded wire construction for repeatability and reliability in balanced-to-unbalanced 50/75Ω implementations. Feature Advantages Very wide bandwidth 5-2800 MHz bandwidth useful for CATV (forward & return), medical wireless and D2A/A2D, and communications applications Excellent amplitude and phase unbalance 0.3 dB amplitude and 6° phase unbalance aid rejection of even harmonics (in push-pull amplifiers) and common mode signals (when used as a balun) Good return loss Efficient signal path across 50/75Ω transitions Low and flat insertion loss Flatness ±0.1 dB across 50-1000 MHz CATV bands preserves gain flatness after impedance transformation Mini-Circuits ® 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 ® 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. Page 1 of 3 Balanced to Unbalanced RF Transformer 75 to 50Ω TC1.33-282+ 5 to 2800 MHz Maximum Ratings Operating Temperature Storage Temperature RF Power DC Current -40°C to 85°C -55°C to 100°C 0.25W 30mA Permanent damage may occur if any of these limits are exceeded. Pin Connections PRIMARY DOT 6 PRIMARY4 SECONDARY DOT 1 SECONDARY3 NOT USED 2 Features • suitable for tin/lead and RoHS solder systems • wideband, 5 to 2800 MHz • balanced transmission line • good return loss, 20 dB typ. at 1 dB band • excellent amplitude unbalance, 0.3 dB typ. • aqueous washable + RoHS compliant in accordance with EU Directive (2002/95/EC) Applications The +Suffix has been added in order to identify RoHS Compliance. See our web site for RoHS Compliance methodologies and qualifications. CASE STYLE: AT224-1 PRICE: $1.89 ea. QTY (100) • balanced to unbalanced transformation • push-pull amplifiers • PCS/DCS • cable TV • cellular Electrical Specifications at 25°C, 75Ω Outline Drawing Ω RATIO FREQUENCY (MHz) (Secondary/Primary) 1.33 INSERTION LOSS* 5-2800 AMPLITUDE UNBALANCE (dB) Typ. PHASE UNBALANCE (Deg.) Typ. 3 dB MHz 2 dB MHz 1 dB MHz 1 dB bandwidth 2 dB bandwidth 1 dB bandwidth 2 dB bandwidth 5-2800 30-2000 50-1500 6 6 0.3 1.0 *Insertion Loss is referenced to mid-band loss, 1.0 dB typ. Measured in 75Ω system. PC B L and Patter n Typical Performance Data, 75Ω FREQUENCY (MHz) Suggested L ayout, T olerance to be within ±.002 Outline Dimensions ( inch mm ) A .150 3.81 B .150 3.81 C .160 4.06 D .050 1.27 E .040 1.02 F .025 0.64 G .028 0.71 H .065 1.65 J .190 4.83 K .030 0.76 L wt .007 grams 0.18 0.15 PHASE UNBALANCE (Deg.) 5.00 10.00 30.00 50.00 100.00 500.00 1.48 1.20 1.08 1.08 1.09 0.99 17.72 21.95 27.05 28.04 28.09 24.29 0.38 0.21 0.11 0.09 0.08 0.21 1000.00 1500.00 2000.00 2400.00 2800.00 0.97 1.20 1.64 2.13 2.76 22.66 22.41 21.22 17.79 13.83 0.07 0.71 1.49 2.00 2.31 TC1.33-282+ INSERTION LOSS 2.0 1.5 1.0 0.5 0.0 3.28 2.17 0.55 0.06 1.09 5.00 6.34 5.18 1.64 3.40 10.70 TC1.33-282+ INPUT RETURN LOSS 30.0 2.5 RETURN LOSS (dB) INSERTION LOSS (dB) 3.0 Config. K AMPLITUDE UNBALANCE (dB) INPUT R. LOSS (dB) INSERTION LOSS (dB) 25.0 20.0 15.0 10.0 5.0 0 400 800 1200 1600 2000 FREQUENCY (MHz) 2400 2800 0 Mini-Circuits ® 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 400 800 1200 1600 2000 FREQUENCY (MHz) 2400 2800 For detailed performance specs & shopping online see web site ® 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. OR M126191 TC1.33-282+ ED-13828/1 IG/CP/AM 100923 Page 2 of 3