Document 405
Wideband Transformer – C1325-A
This wideband transformer provides excellent perfor-
mance at a very economical price and a space-saving
0805 package. It features an insertion loss of 2 dB max
with a 3 dB bandwidth from 7 to 1100 MHz, and 250 Volt
isolation. Operating temperature range is -40° to +85°C.
Applications include impedance matching, voltage or
current transformation, DC isolation, balanced/unbal-
anced mixing, matching, power splitting, coupling and
signal inversion.
Request free evaluation samples by contacting Coilcraft
or visiting
www.coilcraft.com.
Part
number
C1325-A
Impedance
ratio
pri:sec
1
:
1.5
Bandwidth
(MHz)
7 – 1100
Irms
1
(mA)
500
Insertion
loss max
(dB)
2.0
Primary
L min
DCR max
(µH)
(Ohms)
0.48
0.28
Secondary
L min
DCR max
(µH)
(Ohms)
0.75
0.33
Color
dot
Yellow
1. Average current for a 20°C rise above 25°C ambient.
2. Operating temperature range -40°C to 85°C.
3. Electrical specifications at 25°C.
1
4
Secondary
5T
3
Frequency response
0
5
Dot indicates pin 1
0.080 ±0.004
2,03 ±0,10
Primary
4T
2
Attenuation (dB)
10
0.055 ±0.004
1,40 ±0,10
15
0.020 0.040
0,51 1,02
0.004
0,10
0.040
1,02
2
20
0.030
0,76
1
25
30
0.01
0.1
1
10
100
1000
10000
0.014
0,36
1
2
0.050 ±0.004
1,27 ±0,10
4
3
3
4
Frequency (MHz)
0.018
0,46
Recommended
Land Pattern
0.018
0,46
Tape and reel:
2000/7″ reel; 7500/13″ reel 8 mm tape width
Specifications subject to change without notice.
Document 405
Revised 07/27/04