1812WBT

Document 117-1
Surface Mount Wideband 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
Terminations RoHS 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 600/7″ reel; 2200/13″ reel Plastic tape: 12 mm wide,
0.3 mm thick, 8 mm pocket spacing, 3.7 mm pocket depth
PCB washing Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
1:1 Transformers
Part
Inductance2 Test frequency Imp. ratio DCR max
IDC Isolation InsertionBandwidthColor
number1 (µH)
(MHz)pri : sec
(Ohms)
(mA)
(Vrms)
loss (dB)
(MHz)
dot
1812WBT-1L_14
10
1 : 1 4.8 20050 <10.340–22Yellow
1812WBT-2L_5.3
10
1 : 1 1.8 40050 <10.800–60Green
1812WBT-3L_1.25
50
1 : 1 0.7 50050 <1 4–200White
1812WBT-4L_0.220
50
1 : 1 0.3 70050 <1 11–480Orange
1812WBT-5L_0.090
50
1 : 1 0.15 700 50 <1.548–645Red
1.5:1 Transformers
DCR max ()
Part Inductance (µH)2 Test freq. Imp. ratio
IDC IsolationInsertionBandwidth Color
number1
pri sec
(MHz) pri : sec
pri sec (mA) (Vrms) loss (dB) (MHz)
dot
1812WBT1.5-1L_5.0 3.3
10
1.5 : 1 1.050.87 400 50 <0.5 1.3–100Red
1812WBT1.5-2L_2.5 1.6
10
1.5 : 1 0.740.58 500 50 <0.5 2.75–135Orange
1812WBT1.5-3L_1.0 0.60
10
1.5 : 1 0.430.34 500 50 <0.75 7.2–200Yellow
1812WBT1.5-4L_ 0.1440.090 10
1.5 : 1 0.180.14 700 50 <2.25 38–535Green
2:1 Transformers
Inductance (µH)2
DCR max ()
Part
Test freq. Imp. ratio
IDC IsolationInsertionBandwidth Color
number1
pri sec
(MHz) pri : sec
pri sec (mA) (Vrms) loss (dB) (MHz)
dot
1812WBT2-1L_13.806.90 10
2 : 1 4.63.2 200 50 <1.5 0.800–23Brown
1812WBT2-2L_ 5.8502.925 10
2 : 1
1.250.95 400 50 <1.5
2.2–65Red
1812WBT2-3L_ 2.601.30 10
2 : 1
0.520.42 600 50 <1.5
4–105Orange
1812WBT2-4L_ 0.9100.455 50
2 : 1
0.270.23 700 50 <1.5 11–200Yellow
1. When ordering, please specify termination and packaging codes:
1812WBT1.5-4LC
Termination:E =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
=7″ machine-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
=13″ machine-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 [email protected]
UK +44-1236-730595 [email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
Document 117E-1 Revised 03/23/06
© Coilcraft Inc. 2013
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.
Document 117-2
Bottom View
1
4
0.150 max
3,81
Pri
Sec
2
3
4
1
0.195 max
4,95
0.178 ±0.003
4,52 ±0,08
Pad
Detail
2
0.100 ±0.003
2,54 ±0,008
Typical Frequency Attenuation
1:1 Transformers
0.115
2,92
3
2
0.018
0,46
0.048
1,22
0.135
max
3,43
0.040 min
1,02
4
0.020
0,51
0.020
0,51
0.015
ref
0,38
0.057
1,45
1
Color dot
over
pin 1
Recommended
Land Pattern
0.030 ±0.002
0,76 ±0,05
Dimensions are in
inches
mm
0
Attenuation (dB, Re: 50 Ohms)
3
0.015
0,38
0.070 ref
1,78
1
2
3
4
5
-1
6
-4
-3
-2
-5
7
8
0.1
1
10
100
1000
100
1000
100
1000
Frequency (MHz)
0
Attenuation (dB, Re: 50 Ohms)
Typical Frequency Attenuation
1.5:1 Transformers
1
2
3
4
5
-1
6
-2
-4
-3
7
8
0.1
1
10
Frequency (MHz)
0
Attenuation (dB, Re: 50 Ohms)
Typical Frequency Attenuation
2:1 Transformers
1
2
3
4
5
-1
6
-4
7
8
Measured on a network analyzer (re: 50 Ohms)
-3
-2
0.1
1
10
Frequency (MHz)
US +1-847-639-6400 [email protected]
UK +44-1236-730595 [email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
Document 117-2 Revised 03/23/06
© Coilcraft Inc. 2013
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.
Similar pages