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參數資料
| 型號： | 1812WBT-4 |
| 廠商： | COILCRAFT INC |
| 元件分類： | 射頻變壓器 |
| 英文描述： | OBSOLETE See web site for new part number. Part was always RoHS compliant; terminals never contained lead. |
| 中文描述： | 11 MHz - 480 MHz RF TRANSFORMER |
| 封裝： | CHIP, 1812, ROHS COMPLIANT |
| 文件頁數： | 1/2頁 |
| 文件大小： | 114K |
| 代理商： | 1812WBT-4 |
Coilcraft, Inc. 2005
Specifications subject to change without notice.
Please check our website for latest information.
SurfaceMountWidebandRFTransformers
Document 117-1
Revised 11/04/03
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.
1:1 Transformers
L per
Test
Imp.
DCR
Part
winding
frequency
ratio
max
I
DC
Isolation
Insertion
Bandwidth
Color
number
(H)
(MHz)
pri:sec
(Ohms)
(mA)
(Vrms)
loss (dB)
(MHz)
dot
1812WBT-1
14
10
1:1
4.8
200
50
<1
0.340-22
Yellow
1812WBT-2
5.3
10
1:1
1.8
400
50
<1
0.800-60
Green
1812WBT-3
1.25
50
1:1
0.7
500
50
<1
4-200
White
1812WBT-4
0.220
50
1:1
0.3
700
50
<1
11-480
Orange
1812WBT-5
0.090
50
1:1
0.15
700
50
<1.5
48-645
Red
1.5:1 Transformers
L per winding
Test
Imp.
DCR max
Part
(H)
frequency
ratio
(Ohms)
I
DC
Isolation
Insertion
Bandwidth
Color
number
pri
sec
(MHz)
pri:sec
pri
sec
(mA)
(Vrms)
loss (dB)
(MHz)
dot
1812WBT1.5-1
5.0
3.3
10
1.5:1
1.05
0.87
400
50
0.5
1.3-100
Red
1812WBT1.5-2
2.5
1.6
10
1.5:1
0.74
0.58
500
50
0.5
2.75-135
Orange
1812WBT1.5-3
1.0
0.6
10
1.5:1
0.43
0.34
500
50
0.75
7.2-200
Yellow
1812WBT1.5-4
0.144
0.090
10
1.5:1
0.18
0.14
700
50
2.25
38-535
Green
2:1 Transformers
L per winding
Test
Imp.
DCR max
Part
(H)
frequency
ratio
(Ohms)
I
DC
Isolation
Insertion
Bandwidth
Color
number
pri
sec
(MHz)
pri:sec
pri
sec
(mA)
(Vrms)
loss (dB)
(MHz)
dot
1812WBT2-1
13.80
6.90
10
2:1
4.6
3.2
200
50
<1.5
0.800-23
Brown
1812WBT2-2
5.850
2.925
10
2:1
1.25
0.95
400
50
<1.5
2.2-65
Red
1812WBT2-3
2.60
1.30
10
2:1
0.52
0.42
600
50
<1.5
4-105
Orange
1812WBT2-4
0.910
0.455
50
2:1
0.27
0.23
700
50
<1.5
11-200
Yellow
1. Operating temperature range -40°C to +85°C.
2. Electrical specifications at 25°C.
相關PDF資料 |
PDF描述 |
|---|---|
| 1812WBT-5 | OBSOLETE See web site for new part number. Part was always RoHS compliant; terminals never contained lead. |
| 1812WBT1.5-1LB | Wideband RF transformer, SMT, RoHS |
| 1812WBT1.5-1LC | Wideband RF transformer, SMT, RoHS |
| 1812WBT1.5-2LB | Wideband RF transformer, SMT, RoHS |
| 1812WBT1.5-2LC | Wideband RF transformer, SMT, RoHS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 1812WBT-4L | 制造商:Coilcraft Inc 功能描述:Wideband RF transformer, SMT, RoHS |
| 1812WBT-4LB | 制造商:Coilcraft Inc 功能描述:Wideband RF transformer, SMT, RoHS |
| 1812WBT-4LC | 制造商:Coilcraft Inc 功能描述:Wideband RF transformer, SMT, RoHS |
| 1812WBT-5L | 制造商:Coilcraft Inc 功能描述:Wideband RF transformer, SMT, RoHS |
| 1812WBT-5LB | 制造商:Coilcraft Inc 功能描述:Wideband RF transformer, SMT, RoHS |
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