Mechanical Schematics
Bottom
View
.050
1,27
.100
2,54
.030
0,76
5X
.028
0,71
5X
SUGGESTED PAD LAYOUT
.100
2,54
.190
4,83
.060
1,52
.030
0,76
5X
.050
1,27
.150 ± .015
3,81 ± 0,38
Top
View
.150
3,81
+.020
.015
+0,51
0,38
.110 ± .015
2,79 ± 0,38
Side
View
Plated Sides
Pin 1
1
6
4
1
3
A
PRI : SEC
2
6
4
1
3
B
SEC : PRI
D
6
4
3
PRI
SEC
C
PRI : SEC
61
43
Dimensions: Inches
mm
Unless otherwise specified, all tolerances are ± .010
0,25
Part Impedance Ratio1Bandwidth 2, 3 Primary
Number Pri:Sec (MHz TYP) Schematic Pins
(±2%) 2dB 1dB
CX2038L 75Ω:75ΩUp to 1500 4.5-1000 C 4-6
CX2039L 50Ω:50ΩUp to 1500 4.5-1000 C 4-6
NOTE:
Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part number (ex: CX2041T).
RF TRANSFORMERS
Transformers for Wideband RF Applications
Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C
Miniature surface mount package
Various impedance ratios available
Excellent insertion loss
Ideal for Balanced-to-Unbalanced applications
Products from 0.5 to 1500MHz bandwidth
RACKET-LITE
Tape & Reel . . . . . . . . . . . . . . . . . . . . . .1000 /reel
Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100 /tray
Power Rating . . . . . . . . .30 mA MAX; 0.25 W MAX
Part Impedance Ratio1Turns Ratio Bandwidth 2, 3 Insertion Loss Primary
Number Pri:Sec Pri:Sec (MHz TYP) @ Midband Schematic Pins
(±2%) (±2%) 3dB 2dB 1dB (dB TYP)
CX2041 1:1CT 1:1CT 0.05-450 0.75-300 0.10-200 0.60 B 4-6
CX2040L 1:1 1:1 1.5-500 2.5-400 5-350 0.90 A 4-6
CX2043L 1.5:1 √1.5:1 – – 1-1000 0.20 D 3-6
CX2044L 1.5:1 √1.5:1 – 1.0-500 5-100 0.20 A 1-3
CX2045L 1:2CT 1:1.414CT – – 3-300 0.80 B 4-6
CX2047L 1:4CT 1:2CT – 0.5-300 1.5-100 0.24 B 4-6
CX2049L 1:8CT 1:2.83CT 0.1-500 0.3-400 0.5-200 1.16 B 4-6
CX2029 36:1CT 6:1CT 0.05-21 – – 0.40 B 4-6
Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C
USA 858 674 8100
••
UK 44 1483 401 700
••
France 33 3 84 35 04 04
••
Singapore 65 6287 8998
••
Shanghai
86 21 32181071
••
China 86 769 5538070
••
Taiwan 886 2 26980228
www.pulseeng.com
C203.B (8/05)
Application Notes
A. Bandwidth specifications for CX2040 and CX2047 are for a 50Ωsystem.
B. Materials used in the products are UL94-V0 recognized. Products meet
requirements of IEC 695-2-2 (Needle Flame Test).
C. CX2038, CX2039 and CX2043 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 & 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.
RF TRANSFORMERS
Transformers for Wideband RF Applications
Typical Insertion Loss @ 25°C
CX2045L
0
110 100 500
Frequency (MHz)
1
2
3
4
Insertion Loss (dB)
CX2047L
0
0.1 110 100 500
Frequency (MHz)
1
2
3
4
CX2043L
0
0.1 110 100 1000
Frequency (MHz)
Insertion Loss (dB)
1
2
3
4
1500
CX2044L
0
110 100 500
Frequency (MHz)
1
2
3
4
CX2041
0
0.1 110 100
Frequency (MHz)
Insertion Loss (dB)
1
2
3
4
500
CX2040L
0
110 100 500
Frequency (MHz)
1
2
3
4
USA 858 674 8100
••
UK 44 1483 401 700
••
France 33 3 84 35 04 04
••
Singapore 65 6287 8998
••
Shanghai
86 21 32181071
••
China 86 769 5538070
••
Taiwan 886 2 26980228
www.pulseeng.com
C203.B (8/05)
RF TRANSFORMERS
Transformers for Wideband RF Applications
CX2049L
0
0.1 110 100
Frequency (MHz)
1
2
3
4
500
Insertion Loss (dB)
CX2038L
0
0.1 110 100 1000
Frequency (MHz)
Insertion Loss (dB)
1
2
3
4
1500
CX2039L
0
0.1 110 100 1000
Frequency (MHz)
1
2
3
4
1500
Insertion Loss (dB)
CX2029
0
0.5 110 100 500
Frequency (MHz)
2
4
8
16
Typical Insertion Loss @ 25°C
www.pulseeng.com
C203.B (8/05)
For More Information:
Pulse Worldwide
Headquarters
12220 World Trade Drive
San Diego, CA 92128
U.S.A.
www.pulseeng.com
TEL: 858 674 8100
FAX: 858 674 8262
Pulse
Northern Europe
3 Huxley Road
Surrey Research Park
Guildford, Surrey GU2 5RE
United Kingdom
TEL: 44 1483 401700
FAX: 44 1483 401701
Pulse
Southern Europe
Zone Industrielle
F-39270
Orgelet
France
TEL: 33 3 84 35 04 04
FAX: 33 3 84 25 46 41
Pulse South Asia
150 Kampong Ampat
#07-01/02
KA Centre
Singapore 368324
TEL: 65 6287 8998
FAX: 65 6280 0080
Pulse North Asia
3F-4, No. 81, Sec. 1
Hsin Tai Wu Road
Hsi-Chih
Taipei Hsien
Taiwan
TEL: 886 2 26980228
FAX: 886 2 26980948
Pulse
China Headquarters
No. 1
Industrial District
Changan, Dongguan
China
TEL: 86 769 5538070
FAX: 86 769 5538870
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, 2005. Pulse Engineering, Inc. All rights reserved.
Pulse North China
Room 1002
No. 819
Nanjing West Rd
Shanghai
China
TEL: 86 21 32181071
FAX: 86 21 32181396