Mechanical Schematic
RF TRANSFORMER
For Wideband RF Applications
RoHS peak reflow temperature rating: 245°C
For single-ended to balanced applications
Value-oriented construction
Small surface mount package
Excellent insertion loss
Various impedance ratios available
CX2078NL, CX2081NL, CX2156NL
A
4
6
3
1
4
6
3
1
SEC:PRI
2
B
Part Impedance Ratio1 Turns Ratio1 Bandwidth
2, 3 Insertion Loss
Number 4 Pri:Sec Pri:Sec (MHz TYP) @ Midband Schematic
(±2%) (±2%) (dB)
CX2078NL 1:1 1:1 5-500 0.6 A
CX2081NL 1:1.5CT 1:1.2CT 5-125 0.9 B
CX2156NL 1:1 1:1 2.3 - 2700 0.2 A
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 Applications Engineering for performance data.
4. Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part number (ex: CX2078NLT).
Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C
Weight . . . . . . . . . . . . . . . 0.43 grams
Tape & Reel . . . . . . . . . . . . 2200 /reel
Tray . . . . . . . . . . . . . . . . . . .100 /tray
Dimensions: Inches
mm
Unless otherwise specified,
all tolerances are ± .010
0,25
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USA 858 674 8100
Germany 49 7032 7806 0
Singapore 65 6287 8998
Shanghai 86 21 62787060
China 86 755 33966678
Taiwan 886 3 4643715
Application Notes
A. Bandwidth specifications are typical in 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.
RF TRANSFORMER
For Wideband RF Applications
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
Einsteinstrasse 1
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.
Hwigh-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 6280 0080
Pulse North Asia
No. 26, Kao Ching Rd.
Yang Mei Chen
Taoyuan Hsien
Taiwan
R. O. C.
Tel: 886 3 4643715
Fax: 886 3 4641911
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, 2009. Pulse Engineering, Inc. All rights reserved.
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