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1812WBT Datasheet Preview

1812WBT Datasheet

Surface Mount Wideband RF Transformers

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Document 117-1
SurfaceMountWideband RF Transformers
• Provides wide band pass performance in a small SMT package.
• 1812 size ferrite body with a ceramic base.
• 50 V isolation, 1/4 Watt RF input power
Core material Ferrite
TerminationsRoHS compliant gold over nickel over moly-manganese.
Other terminations available at additional cost.
Weight  131 – 152 mg
Ambient temperature  –40°C to +85°C with Irms current
Storage temperature  Component: –40°C to +85°C.
Tape and reel packaging: –40°C to +80°C
Resistance to soldering heat  Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL)  1 (unlimited floor life at <30°C /
85% relative humidity)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
One per billion hours / one billion hours, calculated per Telcordia SR-332
Packaging  600/7reel; 2200/13reel  Plastic tape:  12 mm wide,
0.3 mm thick, 8 mm pocket spacing, 3.7 mm pocket depth
PCB washing  Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCBt_Washing.pdf.
1:1 Transformers
Part Inductance2 Test frequency Imp. ratio
number1 (µH) (MHz) pri : sec
DCR max
(Ohms)
(mIDAC )
Isolation
(Vrms)
Insertion Bandwidth Color
loss (dB) (MHz)
dot
1812WBT-1L_ 14
1812WBT-2L_ 5.3
1812WBT-3L_ 1.25
1812WBT-4L_ 0.220
1812WBT-5L_ 0.090
10
10
50
50
50
1 : 1 4.8 200 50
1 : 1 1.8 400 50
1 : 1 0.7 500 50
1 : 1 0.3 700 50
1 : 1 0.15 700 50
<1 0.340–22 Yellow
<1 0.800–60 Green
<1 4–200 White
<1 11–480 Orange
<1.5 48–645 Red
1.5:1 Transformers
Part
 number1
  Inductance (µH)2 Test freq. Imp. ratio
pri   sec (MHz) pri : sec
DCR max ()
pri  sec
(mIDAC )
Isolation Insertion Bandwidth
(Vrms) loss (dB) (MHz)
Color
dot
1812WBT1.5-1L_ 5.0 3.3
1812WBT1.5-2L_ 2.5 1.6
1812WBT1.5-3L_ 1.0 0.60
1812WBT1.5-4L_ 0.144 0.090
10
10
10
10
1.5 : 1
1.5 : 1
1.5 : 1
1.5 : 1
1.05 0.87 400
0.74 0.58 500
0.43 0.34 500
0.18 0.14 700
50
50
50
50
<0.5 1.3–100 Red
<0.5 2.75–135 Orange
<0.75 7.2–200 Yellow
<2.25 38–535 Green
2:1 Transformers
Part
number1
Inductance (µH)2 Test freq. Imp. ratio
pri   sec (MHz) pri : sec
DCR max ()
pri  sec
(mIDAC )
Isolation Insertion Bandwidth
(Vrms) loss (dB) (MHz)
Color
dot
1812WBT2-1L_ 13.80 6.90
1812WBT2-2L_ 5.850 2.925
1812WBT2-3L_ 2.60 1.30
1812WBT2-4L_ 0.910 0.455
10
10
10
50
2 : 1
2 : 1
2 : 1
2 : 1
4.6 3.2 200 50 <1.5 0.800–23 Brown
1.25 0.95 400 50 <1.5 2.2–65 Red
0.52 0.42 600 50 <1.5 4–105 Orange
0.27 0.23 700 50 <1.5 11–200 Yellow
1. When ordering, please specify termination and packaging codes:
1812WBT1.5-4LC
Termination: L = RoHS compliant gold over nickel over moly-manganese
Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37).
Packaging: C = 7machine-ready reel. EIA-481 embossed plastic tape (600 parts per full reel).
B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter C instead.
D = 13machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (2200 parts per full reel).
2. Inductance is per winding
3. Electrical specifications at 25°C. Measurements are referenced to 50 Ohms.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
Document 117E-1  Revised 07/21/17
© Coilcraft Inc. 2017
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.




Coilcraft

1812WBT Datasheet Preview

1812WBT Datasheet

Surface Mount Wideband RF Transformers

No Preview Available !

Document 117-2
Bottom View
0.150
3,81
max
0.195
4,95
max
4
0.178 ±0.003
4,52 ±0,08
3
1
2
0.100 ±0.003
2,54 ±0,008 00.0,3185ref
0.070
1,78
ref
Pad
Detail
0.020
0,51
0.040
1,02
ref
0.030 ±0.002
0,76 ±0,05
Color dot
over
pin 1
0.135
3,43
max
Typical Frequency Attenuation
1:1 Transformers
0
1
2
3
4
5
-1 -2
6
-3
7
8
0.1
1
0.015
0,38
1
0.020
0,51
0.057
1,45
4
0.115
2,92
1
Pri
2
4
Sec
3
23
0.048
1,22
0.018
0,46
Recommended
Land Pattern
Dimensions are in
inches
mm
-4 -5
10
Frequency (MHz)
100
1000
Typical Frequency Attenuation
1.5:1 Transformers
0
1
2
3
4
5
6
7
8
0.1
-1 -2 -3
-4
1 10 100
Frequency (MHz)
1000
Typical Frequency Attenuation
2:1 Transformers
0
1
2
3
4
5
-1 -2
-3
-4
6
7
Measured on a network analyzer (re: 50 Ohms)
8
0.1
1 10 100
Frequency (MHz)
1000
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
Document 117-2  Revised 07/21/17
© Coilcraft Inc. 2017
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.


Part Number 1812WBT
Description Surface Mount Wideband RF Transformers
Maker Coilcraft
Total Page 2 Pages
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