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Coilcraft CPS
Close up of WB2040-SML_
Datasheet

WB2040-SM

WB2040-SMLD

RoHS compliant
We will continue to manufacture and support the WB series indefinitely. However, for new designs, consider the SWB, which is a drop-in replacement as an alternative to this series.

For more information and specification about the part.

Go to series
Buy Now:
Count Unit price
1 $4.57
100 $4.18
250 $3.48
500 $2.78
1000 $2.22
2500 $1.78
5000 $1.43

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

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

Specifications

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

Surface mount

Part number 1
(Hover for schematics)
L min per winding (µH) 2 DCR max (Ω) Imp. ratio
pri:sec 3 		Current
rating (mA) 		Bandwidth (MHz) Isolation
Voltage (Vrms) 		Schematic
Pri Sec Pri Sec
WB2040-SML_ 95 25 0.160 0.115 4 : 1 250 0.2 — 300 500 B
Notes
  1. When ordering surface mount parts, please specify a packaging code: e.g. WB3040-SMLD
    Through-hole parts are packaged 70 per tube and do not require a packaging code when ordering.
  2. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc
  3. Impedance ratio is for the full primary winding to the full secondary winding.

Termination:

  • RoHS-compliant. Matte tin over nickel over phos bronze. Other terminations available at additional cost.

Packaging:

  • 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.
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
–40°C to +85°C
Storage temperature range:
Component: –40°C to +85°C
Packaging: –40°C to +80°C
Maximum part temperature:
+85°C (ambient + temp rise)
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
See FIT/MTBF Calculations

Performance curves

Attenuation vs Current

Attenuation vs Current

Frequency Response

Frequency Response

Frequency Response

Frequency Response

Frequency Response

Frequency Response

Frequency Response

Frequency Response

Schematics

A B C
wbts1.gif wbts2.gif wbts3.gif

Physical characteristics

wbtd-(1).gif

dims_inches_mm.gif

Tape and Reel specification

tapereel_pl-(1).gif

 
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 (SMT parts)* 330 100 13 30,4 24,4 24 20 4 2 6,6 0,45
* Through-hole parts are packaged 70 per tube.

General specification

Core Material:
Ferrite
Weight:
0.37 – 0.39 g
Packaging:
(SM version): 500 per 13″ reel; Plastic tape: 24 mm wide, 0.45 mm thick, 20 mm pocket spacing, 6.6 mm pocket depth; (TH version): 70 per tube

Soldering/Washing

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

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