1812WBT2-4 Coilcraft, Inc., 1812WBT2-4 Datasheet
1812WBT2-4
Manufacturer Part Number
1812WBT2-4
Description
Surface Mount Wideband Rf Transformers
Manufacturer
Coilcraft, Inc.
Datasheet
1.1812WBT2-4.pdf
(2 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
1812WBT2-4
Manufacturer:
coilcr
Quantity:
179
1:1 Transformers
1812WBT-1
1812WBT-2
1812WBT-3
1812WBT-4
1812WBT-5
1.5:1 Transformers
1812WBT1.5-1
1812WBT1.5-2
1812WBT1.5-3
1812WBT1.5-4
2:1 Transformers
1812WBT2-1
1812WBT2-2
1812WBT2-3
1812WBT2-4
1. Operating temperature range -40°C to +85°C.
2. Electrical specifications at 25°C.
© Coilcraft, Inc. 2005
Surface Mount Wideband RF Transformers
number
number
number
Part
Part
Part
13.80
winding
5.0
2.5
1.0
0.144
5.850
2.60
0.910
L per winding
L per winding
14
pri
pri
L per
(µH)
5.3
1.25
0.220
0.090
(µH)
(µH)
3.3
1.6
0.6
0.090
6.90
2.925
1.30
0.455
sec
sec
frequency
(MHz)
Test
frequency
frequency
10
10
50
50
50
(MHz)
(MHz)
Test
Test
10
50
10
10
10
10
10
10
pri:sec
ratio
Imp.
Specifications subject to change without notice.
Please check our website for latest information.
1:1
1:1
1:1
1:1
1:1
pri:sec
pri:sec
ratio
ratio
Imp.
1.5:1
1.5:1
1.5:1
1.5:1
Imp.
2:1
2:1
2:1
2:1
(Ohms)
DCR
max
4.8
1.8
0.7
0.3
0.15
1.05
0.74
0.43
0.18
4.6
1.25
0.52
0.27
pri
pri
DCR max
DCR max
(Ohms)
(Ohms)
Available in a variety of impedance versions, Coilcraft’s
WBT Series chip transformers provide wide band pass
performance in a small surface mount package.
The transformers are built on an 1812 size ferrite body
with a ceramic base. They feature 50 V isolation and a
1/4 Watt RF input power rating. The top is a high
temperature material that creates a flat surface for auto
insertion. The parts are packaged in tape and reel for
easy dispensing.
Applications include impedance matching, voltage or
current transformation, DC isolation, balanced/unbal-
anced mixing, matching, power splitting, coupling and
signal inversion.
To request free evaluation samples, contact Coilcraft or
visit www.coilcraft.com.
sec
sec
0.87
0.58
0.34
0.14
3.2
0.95
0.42
0.23
(mA)
200
400
500
700
700
I
DC
(mA)
(mA)
400
500
500
700
200
400
600
700
I
I
DC
DC
Isolation
(Vrms)
50
50
50
50
50
Isolation
Isolation
(Vrms)
(Vrms)
50
50
50
50
50
50
50
50
loss (dB)
Insertion
Document 117-1 Revised 11/04/03
loss (dB)
loss (dB)
<1
<1
<1
<1
<1.5
Insertion
Insertion
<1.5
<1.5
<1.5
<1.5
0.5
0.5
0.75
2.25
Bandwidth
Bandwidth
Bandwidth
0.340-22
0.800-60
Document 117-1
11-480
48-645
(MHz)
2.75-135
0.800-23
4-200
1.3-100
7.2-200
38-535
11-200
(MHz)
(MHz)
2.2-65
4-105
Orange
Yellow
Green
Color
Orange
White
Orange
Red
Yellow
Green
Brown
Yellow
dot
Color
Color
Red
Red
dot
dot
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1812WBT2-4 Summary of contents
Page 1
... Operating temperature range -40°C to +85°C. 2. Electrical specifications at 25°C. © Coilcraft, Inc. 2005 Available in a variety of impedance versions, Coilcraft’s WBT Series chip transformers provide wide band pass performance in a small surface mount package. ...
Page 2
... Typical Frequency Attenuation 1:1 Transformers Typical Frequency Attenuation 1.5:1 Transformers Typical Frequency Attenuation 2:1 Transformers © Coilcraft, Inc. 2005 0.135 max 3,43 0.015 0.070 ref 0,38 1,78 Color dot over 0.020 primary 0,51 0.030 ±0.002 0.048 0,76 ±0,05 ...