US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2018
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.
Wideband Transformers
Document 425-1
Document 425-1 Revised 08/11/17
Core material Ferrite
Terminations RoHS compliant matte tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight 0.38 – 0.40 g
Ambient temperature –40°C to +85°C
Storage temperature Component: –40°C to +85°C.
Tape and reel or tube 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)
60 per billion hours / 16,666,667 hours, calculated per Telcordia SR-332
Packaging (SM version): 500 per 13″ reel;
Plastic tape: 24 mm wide, 0.42 mm thick, 20 mm pocket spacing,
6.6 mm pocket depth; (TH version): 70 per tube
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
• Surface mount and through hole versions
• 500 Vrms, 1 minute interwinding isolation (hipot),
1/4 Watt RF input power
• 250 mA max current rating.
• For a smaller package size, see our WBC Series
Dimensions – surface mount parts Dimensions – through hole parts
0.225
5,72
0.100
2,54
0.100
2,54
0.100
2,54
0.30
7,6
max
0.025
0,64 dia typ
1
2
3
6
5
4
typ
Recommended
BoardLayout
0.300 ±0.010
7,62 ±0,25
90°-105°
0.120
3,05 min
Dot indicates
pin 1
0.325
8,26 max
0.325
8,26 max 0.285
7,24 max 0.285
7,24 max
0.100
2,54
0.021
0,53 0.025
0,64
0.225
5,72
0.03
0,76
0.079
2,00
0.551
14,0
0.394
10,0
0.10
2,5
0.10
2,5
typ
typ
max
max
Recommended
Land Pattern
0.520 ±0.010
13,21 ±0,25
0.400
10,16 typ
0.004 /0,10
0.010 × 0.020
0,25 × 0,51 typ
1
2
3
6
5
4
Dot indicates
pin #1
Dot indicates
pin #1
Part
number
Part
number
Internal
code
Internal
code
WBxxxx
XXXX Y
WBxxxx
XXXX Y
Dimensions are in inches
mm Dimensions are in inches
mm
Parts manufactured prior
to August 2015 may be
marked differently.
US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2018
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.
Wideband Transformers
Document 425-2 Revised 08/11/17
Document 425-2
Impedance Insertion
Pri (pins 4
–
6) Sec (pins 1
–
3) DC
Part number ratio2 Bandwidth loss max L min3 DCR max4 L min3 DCR max4
imbalance5
Schematic SM1 TH pri : sec (MHz) (dB) (µH) (mOhm) (µH) (mOhm) max (mA)
WB1-1SL_ WB1-1L 1 : 1 0.150 – 500 0.70 27 75 27 75 —
WB1-6SL_ WB1-6L 1 : 1 0.100 – 350 0.50 25 100 25 100 —
WB1.18-3SL_ WB1.18-3L 1 : 1.18 0.040 – 300 0.50 90 300 108 330 —
WB1.5-6SL_ WB1.5-6L 1 : 1.5 0.050 – 325 0.26 56 120 84 150 —
WB2-1-2WSL_ WB2-1-2WL 1 : 2 0.080 – 700 1.00 38 100 75 150 —
WB2.5-6SL_ WB2.5-6L 1 : 2.5 0.080 – 225 0.26 30 100 75 130 —
WB4-6SL_ WB4-6L 1 : 4 0.100 – 125 0.50 25 100 100 200 —
WB9-1SL_ WB9-1L 1 : 9 0.125 – 125 0.57 25 100 225 250 —
WB16-1SL_ WB16-1L 1 : 16 0.050 – 100 0.60 56 75 896 330 —
WB36-1SL_ WB36-1L 1 : 36 0.100 – 45 0.50 25 50 900 180 —
WB1-1TSL_ WB1-1TL 1 : 1 0.100 – 375 0.51 25 100 25 100 30
WB1-6TSL_ WB1-6TL 1 : 1 0.050 – 200 0.20 70 150 70 150 18
WB2-1TSL_ WB2-1TL 1 : 2 0.070 – 400 1.00 38 100 75 150 29
WB2.5-6TSL_ WB2.5-6TL 1 : 2.5 0.050 – 125 0.28 56 120 140 200 13
WB3-1TSL_ WB3-1TL 1 : 3 0.040 – 500 0.40 96 110 270 200 4.0
WB4-1HSL_ WB4-1HL 1 : 4 0.100 – 500 0.50 25 120 100 160 15
WB4-6TSL_ WB4-6TL 1 : 4 0.050 – 200 0.50 43 120 172 160 5.0
WB5-1TSL_ WB5-1TL 1 : 5 0.050 – 400 0.30 48 220 240 500 13
WB8-1TSL_ WB8-1TL 1 : 8 0.150 – 400 0.76 18 100 144 270 17
WB13-1TSL_ WB13-1TL 1 : 13 0.150 – 125 0.72 17 90 221 200 10
WB16-6TSL_ WB16-6TL 1 : 16 0.050 – 100 0.60 56 75 896 330 25
WBT1-6SL_ WBT1-6L 1 : 1 0.040 – 200 0.25 70 150 70 150 19
WBT1.5-1SL_ WBT1.5-1L 1 : 1.5 0.040 – 350 0.30 48 150 70 180 19
WBT2.5-6SL_ WBT2.5-6L 1 : 2.5 0.050 – 100 0.26 70 150 175 200 11
WBT4-1SL_ WBT4-1L 1 : 3 0.040 – 150 0.26 45 120 135 160 13
WBT4-1ASL_ WBT4-1AL 1 : 4 0.040 – 350 0.40 96 110 384 220 3.5
WBT16-1SL_ WBT16-1L 1 : 16 0.100 – 100 0.50 25 100 400 300 7.5
WBT25-1SL_ WBT25-1L 1 : 25 0.100 – 65 0.50 25 100 625 350 6.0
1. When ordering, please specify packaging code:
WB25-1SLD
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic tape (500 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 D instead.
2. Impedance ratio is for the full primary winding to the full secondary winding.
3. Inductance measured at 100 kHz, 0.1 V, 0 Adc on an Agilent/HP 4192 or equivalent.
4. DCR measured on a micro-ohmmeter.
5. DC imbalance is the maximum difference in current measured at pins 1 and 3 with the source at pin 2. Inductance drop is 15% at max imbalance.
6. Electrical specifications at 25°C. Measurements are referenced to 50 Ohms.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
6
Pri Sec
43
1
Pri Sec
6
43
2
1
Pri Sec
6
5
43
2
1
US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2018
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 425-3
Document 425-3 Revised 08/11/17
Transformers with no center taps
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB1-6
3 dB bandwidth: 0.100 – 350 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB1.5-6
3 dB bandwidth: 0.050 – 325 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB2.5-6
3 dB bandwidth: 0.080 – 225 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB4-6
3 dB bandwidth: 0.100 – 125 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB9-1
3 dB bandwidth: 0.125 – 125 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB36-1
3 dB bandwidth: 0.100 – 45 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB1.18-3
3 dB bandwidth: 0.040 – 300 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB2-1-2W
3 dB bandwidth: 0.080 – 700 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB1-1
3 dB bandwidth: 0.150 – 500 MHz
0
1
2
3
4
5
10.10.01 10 100 1000
Attenuation (dB)
Frequency (MHz)
WB16-1
3 dB bandwidth: 0.050 – 100 MHz
Attenuation measured on a network analyzer (re: 50 Ohms)
US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2018
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 425-4
Document 425-4 Revised 08/11/17
Transformers with secondary center tap
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB1-1T
3 dB bandwidth: 0.100 – 375 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB2-1T
3 dB bandwidth: 0.070 – 400 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB1-6T
3 dB bandwidth: 0.050 – 200 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB2.5-6T
3 dB bandwidth: 0.050 – 125 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB4-1H
3 dB bandwidth: 0.100 – 500 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB4-6T
3 dB bandwidth: 0.050 – 200 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB13-1T
3 dB bandwidth: 0.150 – 125 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB3-1T
3 dB bandwidth: 0.040 – 500 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB5-1T
3 dB bandwidth: 0.050 – 400 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB8-1T
3 dB bandwidth: 0.150 – 400 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB16-6T
3 dB bandwidth: 0.050 – 100 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WB16-6T
3 dB bandwidth: 0.050 – 100 MHz
Attenuation measured on a network analyzer (re: 50 Ohms)
US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2018
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 425-5
Document 425-5 Revised 08/11/17
Transformers with primary and secondary center taps
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WBT2.5-6
3 dB bandwidth: 0.050 – 100 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WBT4-1
3 dB bandwidth: 0.050 – 150 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WBT16-1
3 dB bandwidth: 0.100 – 100 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WBT25-1
3 dB bandwidth: 0.100 – 65 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WBT1-6
3 dB bandwidth: 0.040 – 200 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WBT1.5-1
3 dB bandwidth: 0.040 – 350 MHz
0
1
2
3
4
5
10.10.01 10 100 100
0
Attenuation (dB)
Frequency (MHz)
WBT4-1A
3 dB bandwidth: 0.040 – 350 MHz
Attenuation measured on a network analyzer (re: 50 Ohms)
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Coilcraft:
WB2-1-2WSLB WB1-6SLB WBT2.5-6SLD WBT4-1AL WB9-1L WBT2.5-6SLB WB4-6TSLD WBT4-1L WBT25-
1SLD WB1.5-6SLD WB1-1TSLD WBT2.5-6L WB3-1TSLB WB3-1TSLD WB2.5-6TL WBT16-1SLD WB2.5-6SLD
WB13-1TSLB WB1-6L WB13-1TL WB1-1TSLB WB4-6TL WB16-1L WB36-1SLB WB5-1TSLB WB2.5-6TSLB
WB36-1L WB2-1TSLB WBT16-1SLB WB1.18-3SLD WBT4-1ASLD WB4-1HSLB WB3040-SMLD WBT1.5-1L
WB5-1TSLD WB16-1SLB WB4-6L WB1.18-3SLB WBT4-1ASLB WBT16-1L WBT1-6SLD WB2.5-6TSLD WB8-
1TSLD WB9-1SLD WB1-6SLD WB3-1TL WB8-1TL WB2-1-2WSLD WB1-6TL WBT4-1SLB WB2.5-6L WB4-6SLB
WBT25-1L WB4-6TSLB WBT1.5-1SLD WB13-1TSLD WBT1.5-1SLB WB1.5-6SLB WB9-1SLB WB4-6SLD WB8-
1TSLB WB2-1-2WL WB36-1SLD WB1-1L WBT1-6L WB4-1HL WBT25-1SLB WBT4-1SLD WB2-1TSLD WB2-1TL
WB16-1SLD WBT1-6SLB WB16-6TSLB WB1-6TSLB WB2.5-6SLB WB1-6TSLD WB16-6TSLD WB4-1HSLD
WB16-6TL WB1.18-3L WB1-1TL WB1.5-6L WB5-1TL