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Fax: 310-325-1044

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R3838 SERIES

• Ideal for wideband and RF instrumentation applications

• Can be used for Impedance Matching, Signal Isolation and Bal-

ance to Unbalanced conversion

• 3.8mm square, 5.0mm high

• Operating Temperature: -40°C to +85°C

• RoHS Compliant Product

• Custom Design Available

ELECTRICAL PARAMETERS @ 25°C

Part Number

R3838-

Impedance

Ratio

(Sec/Pri ±10%)

Bandwidth

Typ

(MHz)

Insertion Loss

(dB Typ)

Primary OCL

(μH MIN)

4-6

Pri DCR

(Ω MAX)

4-6

Sec OCL

(µH MIN)

1-3

Sec DCR

(Ω MAX)

1-3

Schematic

1-1L

1:1

4-600

0.40

10.0

0.120

10.0

0.120

A

1-1TL

1:1

3.5-750

0.58

11.0

0.075

11.0

0.075

B

2-1TL

1:2

4-500

0.50

10.0

0.120

20.0

0.150

B

3-1TL

1:3

4-900

0.60

9.0

0.100

27.0

0.150

B

4-1TL

1:4

3.2-750

1.00

12.0

0.055

48.0

0.120

B

4-14TL

1:4

16-1200

2.00

2.0

0.050

8.0

0.100

B

4-1WL

1:4

6.5-1000

0.90

5.0

0.060

20.0

0.120

B

4-6TL

1:4

4.5-700

0.30

9.0

0.120

36.0

0.200

B

8-1L

1:8

1.5-600

0.60

22.0

0.080

176.0

0.310

B

9-1L

1:9

4.5-500

0.54

9.0

0.060

81.0

0.230

B

Productperformanceislimitedtospecifiedparameters.Dataissubjecttochangewithoutpriornotice.

SMT MINI WIDEBAND

TRANSFORMERS

DIMENSIONS (mm)

SCHEMATICS

Figure A

Figure B

Dimensions

Unlessotherwisespecified,alltolerancesare:

inch: .XX : ±0.015

.XXX : ±0.004

mm: X,X : ±0,38

X,XX : ±0,10