PRODUCT DATA SHEET MICROPROFILE SMD P3188 LINE MATCHING TRANSFORMER Features Applications Surface Mount Telecommunications Lead-free (Pb-free ) V.22bis modems RoHS compliant Voice 7mm seated height Instrumentation Vacuum encapsulated IEC 60950 and UL 60950 certified UL Recognized Component Matches directly to 600 lines DESCRIPTION P3188 is a microprofile transformer for applications 600 telephone lines are matched directly by where high performance and safety isolation to P3188 without external compensation international standards are required in an extremely components. small case size. In instrumentation applications, the P3188 can Designed specifically as a surface mount device, the provide wideband frequency response from 50Hz P3188 features a 7mm seated height and is vacuum to 50kHz. encapsulated and tested to 6500VDC. The part is compliant with RoHS Directive 2002/95/EC, and P3188 is certified to IEC 60950 and UL 60950. suitable for lead-free and conventional placement P3188 is a UL Recognized Component, and is and reflow. supported by an IEC CB Test Certificate. P3188 offers fully reinforced insulation, is ideal for voice telecommunications and low speed data communications, and can be matched to both 600 and complex impedance telephone lines. ETALDOC 588/11 Page 1 of 4 October 2007 P3188 SPECIFICATIONS Electrical At T = 25C and as circuit Fig. 2 unless otherwise stated. Parameter Conditions Min Typ Max Units Insertion Loss f = 2kHz - - 3.5 dB Frequency response 200Hz - 4kHz - - 0.2 dB Return Loss 200Hz - 4kHz 18 - - dB (1) Distortion f = 450Hz 0dBm in line, 3rd Harmonic - - -50 dBm Balance DC - 5kHz Method TG25 80 - - dB Saturation Excitation 50Hz 250Vrms. Output voltage - - 10 Vrms across line - - 65 Vpeak Voltage 50Hz 3.88 - - kVrms (2) isolation DC 5.5 - - kV Operating range: Ambient temperature Functional -25 - +85 C (5) Storage -40 - +125 C Humidity - - 95 %R.H. Lumped equivalent circuit parameters as Fig. 1 (3) DC resistance, R Sum of windings 168 - 206 DC 2.9 - 3.5 mH Leakage inductance L (4) Shunt inductance Lp 10mv 200Hz 1.1 - 3.2 H (4) Shunt loss Rp 10mV 200Hz 3.5 - 10 k Notes Equivalent Circuit 1. Third harmonic typically exceeds other harmonics by 20dB. Fig. 1 2. Components are 100% tested at 6.5 kVDC. 3. Caution: do not pass DC through windings. Telephone line current, etc. must be diverted IDEAL L R R L using choke or semiconductor line hold circuit. 1:1 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-033 procedure for components classified as IPC/JEDEC J-STD-020 Moisture Sensitivity Level 5a. ETALDOC 588/11 Page 2 of 4 October 2007