January 30, 2007

E-Mail: ddisales@datatronics.com

499 King’s Road, Hong Kong Tel: (852) 2562 3858, (852) 2564 84 77 Fax: (852) 2565 7214, (852) 2563 1290

All specifications are subject to change without notice.

WIDEBAND RF TRANSFORMERS

PT108 Series RF Transformers

Features

•

Designed for use in Wideband R.F. Applications

•

Frequency Range 0.5 to 1500MHz bandwidth

•

Excellent Insertion Loss

•

Operating temperature range -40ºC to +85ºC

•

Miniature Surface Mount Package

•

Various and Customs Impedance ratios available

•

Tinned Leads with Leaded Solder is Available (note 6)

ELECTRICAL SPECIFICATIONS AT 25

°C

Turns Ratio

Part

Ratio Impedance

Pri : Sec

Bandwidth (MHz TYP)

Insertion Loss

Number

Pri : Sec (

±2%)

(

±2%)

3dB

2dB

1dB

(dB Typ)

Schematic

PT108-0

1:1

1:1

>1800

Up to 1500

0.1 - 800

0.1

C*

PT108-2

1:1

1:1

1.5 - 500

2.5 - 300

5.0 - 250

0.90

A

PT108-3

1:4CT

1:2CT

0.6 - 300

1.0 - 280

2.0 - 250

0.70

B

*4 and 6 are Primary Pins.

OUTLINE DIMENSIONS

0.100

[2.54]

0.150

± 0.014

[3.81

± 0.36]

0.100

[2.54]

0.050 [1.27]

0.050

[1.27]

5 x 0.030

[0.76]

5 x 0.030 [0.76]

0.150

± 0.014

[3.81

± 0.36]

0.060

[1.52]

5 x 0.040

[1.02]

0.110

± 0.015

[ 2.79

± 0.38 ]

0.190

[4.83]

SUGGESTED PAD LAYOUT

6

4

1

2

3

1

3

6

4

1

2

3

6

4

6

4

1

3

SEC

SEC

PRI

PRI

PRI

SEC

A

B

C

Schematics