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ETALDOC 588/9

Page 1 of 4

December 2003

PRODUCT DATA SHEET

MICROPROFILE SMD

P3188

LINE MATCHING TRANSFORMER

Features

Applications

∗

Surface Mount

∗

Telecommunications

∗

Lead-free (Pb-free )

∗

V.22bis modems

∗

7mm seated height

∗

Voice

∗

Vacuum encapsulated

∗

Instrumentation

∗

IEC 60950 and UL 60950 certified

∗

UL Recognized Component

∗

Matches directly to 600

Ω

lines

DESCRIPTION

P3188 is a microprofile transformer for applications
where high performance and safety isolation to
international standards are required in an extremely
small case size.

Designed specifically as a surface mount device, the
P3188 features a 7mm seated height and is vacuum
encapsulated and tested to 6500VDC. The part is
completely lead-free and suitable for lead-free and
conventional placement and reflow.

P3188 offers fully reinforced insulation, is ideal for
voice telecommunications and low speed data
communications whilst capable of being matched to
both 600

Ω

and complex impedance telephone lines.

600

Ω

telephone lines are matched directly by

P3188 without external compensation
components.

In instrumentation applications, the P3188 can
provide wideband frequency response from 50Hz
to 50kHz.

P3188 is certified to IEC 60950 and UL 60950.
P3188 is a UL Recognized Component, and is
supported by an IEC CB Test Certificate.

P3188

ETALDOC 588/9

Page 2 of 4

December 2003

SPECIFICATIONS

Electrical

At T = 25ºC and as circuit Fig. 2 unless otherwise stated.

Parameter

Conditions

Min

Typ

Max

Units

Insertion Loss

f = 2kHz

3.5

Frequency response

200Hz - 4kHz

±0.2

Return Loss

200Hz - 4kHz

Distortion

(1)

f = 450Hz
0dBm in line,
3rd Harmonic

-50

dBm

Balance

DC - 5kHz
Method TG25

Saturation

Excitation 50Hz
250Vrms.
Output voltage
across line

-
-

10
65

Vrms

Vpeak

Voltage
isolation

(2)

50Hz
DC

3.88

5.5

-
-

kVrms

Operating range:
Functional
Storage

(5)

Humidity

Ambient temperature

-25
-40

-
-
-

+85

+125

ºC
ºC

%R.H.

Lumped equivalent circuit parameters as Fig. 1

DC resistance, R

(3)

Sum of windings

168

206

Ω

Leakage inductance

∆

2.9

3.5

Shunt inductance Lp

(4)

10mv 200Hz

1.1

3.2

Shunt loss Rp

(4)

10mV 200Hz

3.5

Ω

Notes

1. Third harmonic typically exceeds other

harmonics by 20dB.

2. Components are 100% tested at 6.5 kVDC.

3. Caution: do not pass DC through windings.

Telephone line current, etc. must be diverted

using choke or semiconductor line hold circuit.

4. At signal levels greater than 100mV, Lp will

increase and Rp will decrease slightly but the

effect is usually favourable to the return loss

characteristic.

5. Excludes shipping materials. Components are

dry-packed and sealed as shipped. Handle in

accordance with IPC/JEDEC J-STD-033A

procedure for components classified as

IPC/JEDEC J-STD-020B Level 5a.

Equivalent Circuit

Fig. 1

IDEAL

1:1

½ L

½ R

P3188

ETALDOC 588/9

Page 3 of 4

December 2003

MATCHING RECOMMENDATIONS

CONSTRUCTION

Dimensions shown are in millimetres (inches).
Geometric centres of outline and pad grid coincide within a tolerance circle of 0.3mm

Ø.

Windings may be used interchangeably as primary or secondary.

600 MATCH

Ω

Recommended Circuit

Fig 2

LINE

600

To extend matching and frequency response beyond 30kHz

add 4.7nF between pins 1 and 3, and 4.7nF between

pins 4 and 6.

470

6.8 F

Recommended Circuit

Fig 3

2.54 2.54

13.0 max

(0.51)

9.0 max

(0.36)

7.0 max

(0.28)

(0.1) (0.1)

NOTE:

Dimensions shown are in millimetres (inches)

Dimensions

Fig 4

(0.06)

1.5

1.32

1.77

(0.052)

(0.07)

Tolerance 0.3mm

Terminals electroplated pure tin (Sn) 5 m minimum

Terminal size : 1.5 (0.06) long, 1.32 (0.05) wide

Connections

Fig 5

1
2

P3188

ETALDOC 588/9

Page 4 of 4

December 2003

SAFETY

CERTIFICATION

Manufactured from materials conforming to

flammability requirements of UL94V-0.

Distance through reinforced insulation 0.4mm

minimum.

Creepage and clearances in circuit are 7mm

minimum where PCB pads do not exceed 3mmØ.

Construction complies with IEC 60950-1,

EN 60950-1 and UL 60950-1, reinforced insulation,

250Vrms maximum working voltage.

ABSOLUTE MAXIMUM RATINGS

(Ratings of components independent of circuit).

Short term isolation voltage (2s)

4.6 kVrms,

6.5kVDC

DC current

100

Storage temperature

-40ºC to
+125ºC

Soldering temperature
Profile peak – either

or
or

260ºC

10s

250ºC

30s

240ºC

60s

Certified by BSI to IEC 60950 Third Edition

(1999) (IEC CB Test Certificate No. GB592W)

sub-clauses 1.5, 1.5.1, 1.5.2, 2.9, 2.9.1, 2.9.2,

2.9.3, 2.9.4, 2.9.5, 2.10, 2.10.1, 2.10.2, 2.10.3,

2.10.3.1, 2.10.3.2, 2.10.4, 2.10.5, 2.10.5.1,

2.10.7, 2.10.8, 4.7, 4.7.3, 4.7.3.1, 4.7.3.4,

(Flammability Class V-0) ,5.2, 5.2.1, and 5.2.2 for

a maximum working voltage of 250Vrms, nominal

mains supply voltage not exceeding 250Vrms

and a maximum operating temperature of +85ºC

in Pollution Degree 2 environment, reinforced

insulation.

Recognized under the Component Recognition

Program of Underwriters Laboratories Inc. to US and

Canadian requirements CAN/CSA C22.2

No. 60950-1-03/UL60950-1, First Edition, based on

IEC 60950-1, First Edition, maximum working

voltage 250Vrms, Pollution Degree 2, reinforced

insulation.

UL File number E203175.

Additionally, Profec Technologies certifies all

transformers as providing voltage isolation of

3.88kVrms, 5.5kV DC minimum. All shipments

are supported by a Certificate of Conformity to

current applicable safety standards.

ORDERING CODE

COPYRIGHT

P3188

ÿÿ

TR = Tape and Reel
(Blank) = Bulk in tubes.

Carrier tape width 24mm,
600 parts per 13” reel.

ETAL and P3188 are Trade Marks of Profec
Technologies Ltd.

The Trade Mark ETAL is registered at the UK
Trade Marks Registry.

Profec Technologies Ltd. is the owner of the
design right under the Copyright Designs and
Patents Act 1988 and no rights or licences are
hereby granted or implied to any third party.

T R A N S F O R M I N G T H E F U T U R E

Profec Technologies Ltd., 10 Betts Avenue, Martlesham Heath, Ipswich, IP5 3RH, England

Telephone: +44 (0) 1473 611422

Fax: +44 (0) 1473 611919

Website: www.profec.com

Email: info@profec.co.uk sales@profec.com

FM 25326

ISO 9001

E203175