4-4-1WEL datasheet, PDF - EEWORLD Datasheet

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4-4-1WEL: DescriptionRF Transformer, 0.05MHz Min, 200MHz Max, ROHS COMPLIANT; CategoryPower management transformer; File Size370KB，3 Pages; ManufacturerBourns; Websitehttp://www.bourns.com; Environmental Compliance

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4-4-1WEL Overview

RF Transformer, 0.05MHz Min, 200MHz Max, ROHS COMPLIANT

4-4-1WEL Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Bourns
package instruction	ROHS COMPLIANT
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	IMPEDANCE RATIO IS 4:1, HEIGHT DIM. INCLUDES TERMINAL ALSO
maximum cutoff frequency	200 MHz
minimum cutoff frequency	0.05 MHz
diameter	10.92 mm
high	6.35 mm
Insertion loss	3 dB
JESD-609 code	e1
Manufacturer's serial number	RF4
Installation features	SURFACE MOUNT
method of packing	TAPE & REEL
physical size	D10.92XH6.35 (mm)
surface mount	YES
Terminal surface	Tin/Silver/Copper (Sn/Ag/Cu)
Transformer type	RF TRANSFORMER
Base Number Matches	1

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Features

■

Fully encapsulated

■

Low proﬁle

■

Low insertion loss

■

Frequency range 10 kHz to 500 MHz

■

Impedance levels from 12.5

to 800

These series are currently available

but not recommended for new

designs.

Electrical Speciﬁcations @ 25 °C

Part Number

Type D

2-1-1D_

2-1-6D_

2-2-1D_

2-2.5-6D_

2-3-1D_

2-4-1D_

2-4-6D_

2-5-1D_

2-8-1D_

2-13-1D_

2-16-6D_

3-1-1D_

3-1-6D_

3-1.5-1D_

3-1.5-6D_

3-2.5-6D_

3-4-6D_

3-9-1D_

3-16-1D_

3-36-1D_

4-1-6D_

4-1.5-1D_

4-2.5-6D_

4-4-1D_

4-25-1D_

Type W

2-1-1W_

2-1-6W_

2-2-1W_

2-2.5-6W_

2-3-1W_

2-4-1W_

2-4-6W_

2-5-1W_

2-8-1W_

2-13-1W_

2-16-6W_

3-1-1W_

3-1-6W_

3-1.5-1W_

3-1.5-6W_

3-2.5-6W_

3-4-6W_

3-9-1W_

3-16-1W_

3-36-1W_

4-1-6W_

4-1.5-1W_

4-2.5-6W_

4-4-1W_

4-25-1W_

Type J

2-1-1J_

2-1-6J_

2-2-1J_

2-2.5-6J_

2-3-1J_

2-4-1J_

2-4-6J_

2-5-1J_

2-8-1J_

2-13-1J_

2-16-6J_

3-1-1J_

3-1-6J_

3-1.5-1J_

3-1.5-6J_

3-2.5-6J_

3-4-6J_

3-9-1J_

3-16-1J_

3-36-1J_

4-1-6J_

4-1.5-1J_

4-2.5-6J_

4-4-1J_

4-25-1J_

Ratio

Impedance

2.5

1.5

2.5

1.5

2.5

Frequency

MHz

.050-200

.030-300

.070-200

.010-100

.050-250

.200-350

.020-250

.300-300

.030-140

.300-120

.030-75

.150-400

.010-150

.100-300

.020-100

.010-100

.020-200

.150-200

.300-120

.030-20

.040-500

.075-500

.010-50

.050-200

.020-30

Insertion Loss

3 dB

MHz

.050-200

.030-300

.070-200

.010-100

.050-250

.200-350

.020-250

.300-300

.030-140

.300-120

.030-75

.150-400

.010-150

.100-300

.020-100

.010-100

.020-200

.150-200

.300-120

.030-20

.040-500

.075-500

.010-50

.050-200

.020-30

2 dB

MHz

.080-150

.100-150

.100-100

.020-50

.100-200

.350-300

.050-150

.600-200

.100-90

.700-80

.060-30

.350-200

.020-100

.200-150

.050-50

.020-50

.050-150

.300-150

.700-80

.050-10

.200-200

.200-100

.025-25

.200-50

.050-20

1 dB

MHz

.20-80

.20-50

.50-50

.05-20

.50-70

2-100

.10-100

5-100

1-60

5-20

10-20

2-50

.05-50

.50-80

.10-25

.05-20

.10-100

2-40

.50-20

.10-5

1-50

.10-50

.05-10

1-30

.10-10

RF4 Series

RF3 Series

RF2 Series

Schematic

-1J

4-4

■

RoHS compliant**

(nominal 50

Ω)

■

6 pin DIP and SMD

RF2, RF3, RF4 Series - Wideband Transformers

Note

RF2 and RF3 are standard units. RF4 only on request.

Terminal Material: 97Sn/2.5Cu/0.5Ag

Operating Temperature Range: 0 °C to +70 °C

Storage Temperature Range: -40 °C to +85 °C

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Speciﬁcations are subject to change without notice.

The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.

Users should verify actual device performance in their speciﬁc applications.

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