RF TRANSFORMERS Transformers for Wideband RF Applications RoHS peak reflow temperature rating: 245°C° Miniature surface mount package Various impedance ratios available Excellent insertion loss Ideal for Balanced-to-Unbalanced applications Products from 0.05 to 1900 MHz bandwidth Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C RoHS Compliant Part Number Impedance Ratio 1 Pri:Sec Turns Ratio Pri:Sec (±2%) CX2041NL CX2040LNL CX2043LNL 1:1CT 1:1 1.5:1 1:1CT 1:1 √1.5:1 3 dB 0.05–450 1.5–500 — CX2044LNL CX2045LNL CX2047LNL CX2049LNL CX2029LNL CX2163LNL 1.5:1 1:2CT 1:4CT 1:8CT 36:1CT 1:1 √1.5:1 1:1.414CT 1:2CT 1:2.83CT 6:1CT 1:1 — — — .25–500 0.05–21 800–1900 Bandwidth 2, 3 (MHz TYP) 2 dB 0.75–300 2.5-400 — 1.0–500 — 0.5–300 0.3–400 — — 1 dB 0.10–200 5–350 1–1000 Insertion Loss @ Midband (dB TYP) Schematic Primary Pins 0.60 0.90 0.20 B A D 4–6 4–6 3–6 0.20 0.80 0.24 1.16 0.40 1.50 A B B B B E 1–3 4–6 4–6 4–6 4–6 1–3 5–100 3–300 1.5–100 0.5–200 — 900-1400 Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C RoHS Compliant Part Number Impedance Ratio1 Pri:Sec CX2038LNL CX2039LNL 75 :75 50 :50 Bandwidth 2, 3 (MHz TYP) 2 dB Up to 1500 Up to 1500 Schematic Primary Pins C C 4–6 4–6 1 dB 4.5–1000 4.5–1000 NOTE: Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part number, e.g. CX2041NLT, CX2163NLT. Mechanical RACKET-LITE Schematic Tape & Reel . . . . . . . . . . . . . . . . . 2000 /reel Tray . . . . . . . . . . . . . . . . . . . . . . . . 100 /tray Power Rating . . . 30 mA MAX; 0.25 W MAX Dimensions: Inches mm .010 Unless otherwise specified, all tolerances are ± 0.25 USA 858 674 8100 • Germany 49 7032 7806 0 • Singapore 65 6287 8998 • Shanghai 86 21 32181071 • China 86 755 33966678 • Taiwan 886 3 4643715 www.pulseeng.com 1 C203.D (1/10) RF TRANSFORMERS Transformers for Wideband RF Applications Notes from Tables 3. These transformers are verified to operate from -40°C to +85°C. Contact Pulse Applications Engineering for performance data. 1. Impedance and turns ratios are specified primary:secondary. (CT=Center Tap). 2. Bandwidth is referenced to midband loss. Application Notes A. Bandwidth specifications for CX2040LNL and CX2047LNL are for a 50 Ω system. D. For additional impedance ratios and frequency ranges, please contact Pulse Applications Engineering. B. Materials used in the products are UL94-V0 recognized. Products meet requirements of IEC 695-2-2 (Needle Flame Test). E. Pick and place operation: smooth upper surface of device allows automatic pick and place. C. CX2038LNL, CX2039LNL, and CX2043LNL transformer configurations do not provide DC isolation between primary and secondary windings. F. For availability of lead-free version of this product, please contact Pulse. Typical Insertion Loss @ 25ºC CX2041NL CX2040LNL CX2044LNL CX2043LNL CX2047LNL CX2045LNL USA 858 674 8100 • Germany 49 7032 7806 0 • Singapore 65 6287 8998 • Shanghai 86 21 32181071 • China 86 755 33966678 • Taiwan 886 3 4643715 www.pulseeng.com 2 C203.D (1/10) RF TRANSFORMERS Transformers for Wideband RF Applications Typical Insertion Loss @ 25ºC CX2029NL CX2038LNL CX2039LNL For More Information: Pulse Worldwide Headquarters Pulse Europe Pulse China Headquarters Pulse North China Zeppelinstrasse 15 12220 World Trade Dr. D-71083 Herrenberg San Diego, CA 92128 Germany U.S.A. www.pulseeng.com Tel: 858 674 8100 Fax: 858 674 8262 B402, Shenzhen Academy of Aerospace Technology Bldg. 10th Kejinan Rd. High-Tech Zone Nanshan District Shenzen, PR China 518057 Tel: 49 7032 7806 0 Tel: 86 755 33966678 Fax: 49 7032 7806 135 Fax: 86 755 33966700 Pulse South Asia Pulse North Asia Room 2704/2705 Super Ocean Finance Ctr. 2067 Yan An Rd. West Shanghai 200336 China 135 Joo Seng Rd. #03-02 PM Industrial Bldg. Singapore 368363 Tel: 86 21 62787060 Fax: 86 2162786973 Tel: 65 6287 8998 Fax: 65 6287 8998 3F, No. 198 Zhongyuan Rd. Zhongli City Taoyuan County 320 Taiwan R. O. C. Tel: 886 3 4356768 Fax: 886 3 4356823 (Pulse) Fax: 886 3 4356820 (FRE) Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be trademarks or registered trademarks of their respective owners. © Copyright, 2010. Pulse Engineering, Inc. All rights reserved. www.pulseeng.com 3 C203.D (1/10)