P3191

PRODUCT DATA SHEET LOW COST MICROPROFILE SMD P3191 LINE MATCHING TRANSFORMER Features Applications * Low Cost * Telecommunications * Surface Mount * V.34 modems * 7mm seated height * Portable computers * Vacuum encapsulated * Fax/Modems * IEC 950, UL 1950 and EN 60950 certified * UL Recognized Component * BABT Certificate of Recognition * CSA NRTL/C Certificate of Conformity * Simple 600 match DESCRIPTION P3191 is a low distortion microprofile transformer When used with 600 lines no external for applications where high performance and safety compensation components are required. isolation to international standards are required in an extremely small case size. At moderate transmit power levels (e.g. -10dBm) performance to 33,600 bits/second may be Designed specifically as a surface mount device, the achieved. P3191 features a 7mm seated height and is offered in the same package as the now familiar P2781. P3191 is certified to IEC 950, EN 60950, EN 41003 and UL1950. P3191 is a UL Despite the subminiature size, the performance is Recognized Component, and is supported by a superior to that of much larger components. The BABT Certificate of Recognition, a CSA P3191 offers reinforced insulation, is ideal for data Certificate of Conformity and an IEC CB Test communications at high data rates whilst capable of Certificate. being matched to both 600 and complex impedance telephone lines. E203175 to Electronic Techniques (Anglia) Limited ETALDOC 590/6 Page 1 of 4 January 2001P3191 SPECIFICATIONS Electrical At T = 25C and as circuit Fig. 2 unless otherwise stated. Parameter Conditions Min Typ Max Units Insertion Loss f = 2kHz - - 4.5 dB Frequency response -3dB LF cutoff - 50 - Hz -3dB HF cutoff - 35 - kHz 200Hz - 4kHz - - 0.2 dB Return Loss 200Hz - 4kHz 16 - - dB Third Harmonic 600Hz -10dBm in line - -93 - dBm (1) Distortion Balance DC - 5kHz 80 - - dB Method TG25 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 -10 - +85 C (5) Storage -40 - +125 C Lumped equivalent circuit parameters as Fig. 1 (3) DC resistance, R Sum of windings 270 - 340 DC Leakage - 5.6 - mH inductance L Shunt (4) inductance Lp -43dBm 200Hz 2.4 - - H (4) Shunt loss Rp -43dBm 200Hz 7 - - 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 L R 1:1 using choke or semiconductor line hold circuit. 4. At signal levels greater than -20dBm, 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. Refer to Profec Technologies for appropriate storage conditions for sealed consignments. ETALDOC 590/6 Page 2 of 4 January 2001