Each

VERSA-PAC can be configured in a variety of ways by simply connecting pins together on the Printed Circuit Board

(PCB). As shown below, the connections on the PCB are equal to the pin configuration statement shown at the bottom of the

schematic symbol. Connecting a number of windings in parallel will increase the current carrying capability, while connecting

in series will multiply the inductance. Each

VERSA-PAC part can be configured in at least 6 combinations for inductor use or

configured in at least 15 turns ratios for transformer applications. Given 25

VERSA-PAC part numbers, this allows for at least

500 magnetic configurations. The

PCM configurations can either be created by the designer or simply chosen from the existing

PCM diagrams. The following inductor example shows 6 windings in series, which result in an inductance of 36 times the base

inductance and 1 times the base current.

1

12

2

11

3

10

4

1

112

6

Component View

7

7

= 36 times the base

Inductance from Data Table.

L

9

5

8

6

7

PIN CONFIGURATIONS

(2,12)(3,11)(4,10)(5,9)(6,8)

INDUCTOR EXAMPLE

FOR SIZES VP3, VP4 AND VP5

HOW TO PIN -CONFIGURE VERSA-PAC

®

The PCM configurations may be selected from the examples on the following pages or created by the designer. Six PCM

inductor and fifteen PCM transformer configurations and equivalent circuit schematics are shown. The printed circuit board

layout in each example illustrates the connections to obtain the desired inductance or turns ratio. The examples may be

used by the PCB designer to configure

VERSA-PAC as desired.

To assist the designer,

VERSA-PAC phasing, coupling and thermal issues have been considered in each of the PCM

configurations illustrated. Additionally, the inductance and current ratings, as a function of the respective base values from

the following Data Tables, are shown in each PCM example. Turns ratios are also given for each PCM Transformer shown.

It is important to carefully select the proper

VERSA-PAC part in order to minimize the component size without exceeding

the RMS current capability or saturating the core. The Data Tables indicate maximum ratings.

TRANSFORMER EXAMPLE

FOR SIZES VP3, VP4 AND VP5

1

12

2

11

3

10

4

112

67

9

5

8

6

7

1

12

2

7

L

I

I

1:5

PIN CONFIGURATIONS

(3,11)(4,10)(5,9)(6,8)

Each VERSA-PAC may be used in at least 15 transformer applications. More than 375 transformer combinations may be

achieved using the available 25 VERSA-PAC parts.

®

Inductors and Transformers

(Surface Mount)