Site Settings

Language settings
Currency settings
Video Library
Cx Family Common Mode Chokes
0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors



RoHS compliant

For more information and specification about the part.

Go to series
Buy Now:
Count Unit price
1 $2.77
250 $2.47
500 $2.05
1000 $1.72
2500 $1.45
5000 $1.20

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
Request a Sample:


Electrical specifications at 25°C. Measurements are referenced to 50 Ohms.

Secondary tap

Part number 1
(Hover for schematics)
L min per winding (µH) 2 DCR max (mΩ) 3 Imp. ratio
pri:sec 4
rating (mA)
loss (db)
DC imbalance 5 Bandwidth (MHz) Isolation
Voltage (Vrms)
Pri Sec Pri Sec
WB13-1TSL_ 17 221 90.0 200 1 : 13 250 0.72 10.0 0.15 125 500 B
  1. When ordering, please specify a packaging code: e.g. WB25-1SLD
  2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4192 or equivalent.
  3. DCR measured on a micro-ohmmeter at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  4. Impedance ratio is for the full primary winding to the full secondary winding.
  5. DC imbalance is the difference in current measured at pins 1 and 3 with the source at pin 2. Inductance drop is 15% at maximum imbalance.


  • RoHS-compliant. 260°C compatible. Matte tin over nickel over phos bronze terminations.
  • COTS Plus tin-silver-copper and tin-lead terminations available.


  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape (500 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
  • B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to D.
RoHS compliant
Ambient temperature range:
–40°C to +85°C
Storage temperature range:
Component: –40°C to +85°C
Tape and reel or tube packaging: –40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

Frequency Response


A (No Tap) B (Sec Tap) C (Pri and Sec Tap)
wb_schema.gif wb_schemb.gif wb_schemc.gif

Physical characteristics


Tape and Reel specification


Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
13" (330 mm) A B C D E W P Po P1 H T part_or_u.gif
500 330 100 13 30,4 24,4 24 20 4 2 6,6 0,42

General specification

Core Material:
0.38 – 0.40 g
(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


Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More Info

Related products

Related product series