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
Mechanical Schematic
RACKET-LITE
Dimensions: Inches
mm
Unless otherwise specified, all tolerances are ± .010
0.25
Tape & Reel . . . . . . . . . . . . . . . . .2000 /reel
Tray . . . . . . . . . . . . . . . . . . . . . . . .100 /tray
Power Rating . . . 30 mA MAX; 0.25 W MAX
www.pulseeng.com 1 C203.D (1/10)
RoHS
Compliant
Part Number
Impedance Ratio 1
Pri:Sec
Turns Ratio
Pri:Sec
(±2%)
Bandwidth 2, 3
(MHz TYP) Insertion Loss
@ Midband
(dB TYP) Schematic Primary Pins
3 dB 2 dB 1 dB
CX2041NL 1:1CT 1:1CT 0.05–450 0.75–300 0.10–200 0.60 B 4–6
CX2040LNL 1:1 1:1 1.5–500 2.5-400 5–350 0.90 A 4–6
CX2043LNL 1.5:1
√
1.5:1 — — 1–1000 0.20 D 3–6
CX2044LNL 1.5:1
√
1.5:1 — 1.0–500 5–100 0.20 A 1–3
CX2045LNL 1:2CT 1:1.414CT — — 3–300 0.80 B 4–6
CX2047LNL 1:4CT 1:2CT — 0.5–300 1.5–100 0.24 B 4–6
CX2049LNL 1:8CT 1:2.83CT .25–500 0.3–400 0.5–200 1.16 B 4–6
CX2029LNL 36:1CT 6:1CT 0.05–21 — — 0.40 B 4–6
CX2163LNL 1:1 1:1 800–1900 — 900-1400 1.50 E 1–3
Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C
RoHS
Compliant
Part Number
Impedance Ratio1
Pri:Sec
Bandwidth 2, 3
(MHz TYP) Schematic Primary Pins
2 dB 1 dB
CX2038LNL 75 :75 Up to 1500 4.5–1000 C 4–6
CX2039LNL 50 :50 Up to 1500 4.5–1000 C 4–6
NOTE: Optional Tape & Reel packaging can be ordered by adding a “T” suffi x to the part number, e.g. CX2041NLT, CX2163NLT.
Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C
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
RF TRANSFORMERS
Transformers for Wideband RF Applications
CX2041NL CX2040LNL
CX2043LNL CX2044LNL
CX2045LNL CX2047LNL
Application Notes
A. Bandwidth specifications for CX2040LNL and CX2047LNL are for a
50 Ω system.
B. Materials used in the products are UL94-V0 recognized. Products meet
requirements of IEC 695-2-2 (Needle Flame Test).
C. CX2038LNL, CX2039LNL, and CX2043LNL transformer configurations
do not provide DC isolation between primary and secondary windings.
D. For additional impedance ratios and frequency ranges, please contact
Pulse Applications Engineering.
E. Pick and place operation: smooth upper surface of device allows
automatic pick and place.
F. For availability of lead-free version of this product, please contact Pulse.
Notes from Tables
1. Impedance and turns ratios are specified primary:secondary.
(CT=Center Tap).
2. Bandwidth is referenced to midband loss.
3. These transformers are verified to operate from -40°C to +85°C.
Contact Pulse Applications Engineering for performance data.
www.pulseeng.com 2 C203.D (1/10)
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
Typical Insertion Loss @ 25ºC
RF TRANSFORMERS
Transformers for Wideband RF Applications
CX2029NL
CX2038LNL
CX2039LNL
www.pulseeng.com 3 C203.D (1/10)
RF TRANSFORMERS
Transformers for Wideband RF Applications
Typical Insertion Loss @ 25ºC
For More Information:
Pulse Worldwide
Headquarters
12220 World Trade Dr.
San Diego, CA 92128
U.S.A.
www.pulseeng.com
Tel: 858 674 8100
Fax: 858 674 8262
Pulse Europe
Zeppelinstrasse 15
D-71083 Herrenberg
Germany
Tel: 49 7032 7806 0
Fax: 49 7032 7806 135
Pulse China Headquarters
B402, Shenzhen Academy of
Aerospace Technology Bldg.
10th Kejinan Rd.
High-Tech Zone
Nanshan District
Shenzen, PR China 518057
Tel: 86 755 33966678
Fax: 86 755 33966700
Pulse North China
Room 2704/2705
Super Ocean Finance Ctr.
2067 Yan An Rd. West
Shanghai 200336
China
Tel: 86 21 62787060
Fax: 86 2162786973
Pulse South Asia
135 Joo Seng Rd.
#03-02
PM Industrial Bldg.
Singapore 368363
Tel: 65 6287 8998
Fax: 65 6287 8998
Pulse North Asia
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.
