C217.C (05/12)1pulseelectronics.com
RF Balun Transformers
For Wideband RF Applications
Low cost construction
Miniature surface mount package
Excellent insertion loss
Ideal for balanced-to-unbalanced applications
Designed for: • CATV Distribution/Drop Amplifiers
• Set Top Boxes
• Residential Gateways
CX2024/NL, CX2024A/NL & CX2149/NL
Mechanical Schematic
USA 858 674 8100 Germany 49 7032 7806 0 Singapore 65 6287 8998 Shanghai 86 21 62787060 China 86 755 33966678 Taiwan 886 3 4356768
Electrical Specifications @ 25°C - Operating Temperature -40°C to +85°C
Standard
Part
Number
RoHS-6
Compliant
Part No.
Impedance
Ratio
(Pri:Sec ±2%)
Insertion Loss Phase
Unbalance
(50/1000MHz)
10MHz
(TYP/MAX)
50-750MHz
(TYP/MAX)
750-1000MHz
(TYP/MAX)
10MHz
(TYP/MIN)
50-750MHz
(TYP/MIN)
750-1000MHz
(TYP/MIN) (50MHz) (100-1000MHz)
CX2024 CX2024NL 1:1 0.46/1.00dB 0.37/0.50dB 0.48/0.60B >40/20dB >30/20dB 30/16dB 20� MAX 1.4dB MAX 1.25dB MAX
CX2024A CX2024ANL 1:1 0.46/1.00dB 0.37/0.50dB 0.48/0.60B >40/20dB >30/20dB 30/16dB 20� MAX 1.4dB MAX 1.25dB MAX
CX2149 CX2149NL 1:1 0.40/1.00B 0.40/1.00B 0.6/1.0B >30/20dB 30/20dB 22/18dB ±4� from 180�1.4dB MAX 1.3dB MAX
Notes: 1. Part with cover plate is designated CX2024A. Optional Tape & Reel packaging can be ordered by adding a “T” sux to the part numbe (ex: CX2024T or CX2024AT).
Tape & Reel ............................................2000/reel
Tray ...........................................................100/tray
Power Rating ................30 mA MAX; 0.25 W MAX
Dimensions:
Unless otherwise specified, all tolerances are ±
Inches
mm
.010
0,25
Amplitude
Unbalance
Return Loss
2
1
50MHz
(TYP/MAX)
208MHz
(TYP/MAX)
870MHz
(TYP/MAX)
50MHz
(TYP/MAX)
208MHz
(TYP/MAX)
870MHz
(TYP/MAX) 50-870MHz 50MHz 100-870MHz
1
2pulseelectronics.com
RF Balun Transformers
For Wideband RF Applications
C217.C (05/12)
Application Notes
Notes from Tables
For More Information
A. Bandwidth specifications for CX2024, CX2024A and
CX2149 are for a 75 Ω system.
B. Materials used in the products are UL94-V0 recognized.
Products meet requirements of IEC 695-2-2 (Needle
Flame Test).
C. For additional impedance ratios and frequency ranges,
please contact Applications Engineering.
D. Pick and place operation: smooth upper surface of
device allows automatic pick and place.
1. Impedance and turns ratios are specified primary
:secondary.
2. These transformers are verified to operate from -40�C
to +85�C. Contact Applications Engineering for
performance data.
Pulse Worldwide
Headquarters
12220 World Trade Drive
San Diego, CA
92128
U.S.A.
Tel: 858 674 8100
Fax: 858 674 8262
Pulse Europe
Einsteinstrasse 1
D-71083 Herren-
berg
Germany
Tel: 49 7032 78060
Fax: 49 7032 7806 135
Pulse China Headquarters
B402, Shenzhen Academy of
Aerospace Technol-
ogy Bldg.
10th Kejinan Road
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 Road
West
Shanghai 200336
China
Tel: 86 21 62787060
Fax: 86 2162786973
Pulse South Asia
135 Joo Seng Road
#03-02
PM Industrial Bldg.
Singapore 368363
Tel: 65 6287 8998
Fax: 65 6287 8998
Pulse North Asia
3F, No. 198
Zhongyuan Road
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 oered 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, 2012. Pulse Electronics, Inc. All rights reserved.
