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Introduction
Specifications
Environmental
Performance curves
Schematics
Physical characteristics
Tape & Reel
Soldering/Washing

Datasheet 3D Models

WB4-6SL

Name: WB4-6SLD
Brand: Coilcraft
SKU: WB4-6SLD
Price: 1.72 USD
Availability: InStock

WB4-6SLD

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Count	Unit price
1	$4.52
250	$3.63
500	$2.19
1000	$1.72
2500	$1.46
5000	$1.34

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

Packaging

D = 13" machine-ready reel

. in stock, ready to ship today.

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Specifications

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

No taps

Part number 1 (Hover for schematics)	L min per winding (µH) 2		DCR max (mΩ) 3		Imp. ratio pri:sec 4	Current rating (mA)	Insertion loss (db)	Bandwidth (MHz)	Isolation Voltage (Vrms)	Schematic
Part number 1 (Hover for schematics)	Pri	Sec	Pri	Sec	Imp. ratio pri:sec 4	Current rating (mA)	Insertion loss (db)	Bandwidth (MHz)	Isolation Voltage (Vrms)	Schematic
WB9-1SL_	25	225	100	250	1 : 9	250	0.57	0.125 — 125	500	A

Notes

When ordering, please specify a packaging code: e.g. WB25-1SLD
Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4192 or equivalent.
DCR measured on a micro-ohmmeter at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
Impedance ratio is for the full primary winding to the full secondary winding.
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.

Termination:

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

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
Tape and reel or tube packaging: –40°C to +80°C

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

Frequency Response

Measured on a network analyzer (re: 50 Ohms)

Schematics

A (No Tap)	B (Sec Tap)	C (Pri and Sec Tap)

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
500	330	100	13	30,4	24,4	24	20	4	2	6,6	0,42

General specification

Core Material:

Ferrite

Weight:

0.38 – 0.40 g

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

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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WB4-6SL

WB4-6SLD

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Specifications

No taps

Termination:

Packaging:

Performance curves

Frequency Response

Schematics

Physical characteristics

Tape and Reel specification

General specification

Soldering/Washing

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