October 12, 2006

DATATRONIC

Email: ddisales@datatronics.com

499 King’s Road, Hong Kong Tel: (852) 2562 3858, (852) 2564 8477 Fax: (852) 2565 7214, (852) 2563 1290

All specifications are subject to change without notice.

1

2

3

5

Schematic Figure A

1

2

3

4

5

1

2

3

5

Schematic Figure B

4

.900 Max

22.96

.700 Max

17.78

.700 Max

17.78

.170 Min

4.31

.700

17.78

.500

12.70

.250

6.35

.010 Min

.25

Case for Figure A and B

Pin No. 1-2 = .051±.003 Dia Inches

Pin No. 3-4-5 = .030±.002 Dia Inches

INCHES .XXX ± .010

MILLIMETERS .XX ± .25

ELECTRICAL SPECIFICATIONS AT 25ºC

Part

Number

Turns

Ratio

Secondary

Inductance

mH (Min)

Secondary

Inductance

Test Voltage

15.75 kHz

Secondary

DCR

Ohm (Max)

Secondary

Rated

Terminated

Resistance

Ohm (Max)

Primary

Unipolar

Amp µSec

Rating

(Max)

Primary

Bipolar

Amp µSec

Rating

(Max)

1 Turn

Primary

Peak Sense

Current

Amps (Max)

Schematic

Figure

PT27210

PT27211

PT27212

PT27213

PT27214

PT27215

PT27216

PT27217

1:50

1:100

1:200

1:300

1:50CT

1:100CT

1:200CT

1:300CT

5.0

20.0

80.0

180.0

5.0

20.0

80.0

180.0

0.50

1.00

2.00

3.00

0.50

1.00

2.00

3.00

0.70

1.40

4.50

11.00

0.70

1.40

4.50

11.00

50

100

200

300

50

100

200

300

150

300

600

900

150

300

600

900

300

600

1200

1800

300

600

1200

1800

20

20

20

20

20

20

20

20

A

A

A

A

B

B

B

B

Note: (1) Maximum ratings specified with rated secondary terminating resistance and 1 turn primary.

(2)

Amp-µSec rating of primary equals to volt µSec rating of secondary when secondary is terminated in rated resistance.

(3)

Maximum operating temperature 105°C.

(4)

For non-RoHS parts, replace PT prefix with 42- (e.g. PT27210 becomes 42-27210).

(5)

Terminal finish is compliant to RoHS requirements

272 Series Current Sense Transformers 25kHz

Features

Designed for switching mode power supply applications

International safety construction

High dielectric strength capability 3750V RMS

Frequency range 25kHz

Epoxy encapsulated construction

Tinned Leads with Leaded Solder is Available (note 4)