PRODUCT DATA SHEET P3190 MICROPROFILE PICK-OFF TRANSFORMER Features Applications ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ Surface Mount Lead-free (Pb-free) RoHS compliant 7mm seated height Vacuum encapsulated IEC 60950 and UL 60950 Certified UL Recognized Component Telecommunications Pick-off applications Voice recording Instrumentation DESCRIPTION P3190 is a high impedance microprofile transformer for applications where safety isolation to international standards is required in an extremely small case size. P3190 is designed for "listening" applications when placed across a line, presenting a high impedance exceeding 10kΩ across the voiceband to minimize circuit loading. Designed specifically as a surface mount device, P3190 features a 7mm seated height. The part is compliant with RoHS Directive 2002/95/EC, and suitable for lead-free and conventional placement and reflow. For applications requiring higher impedance, P2769 offers >30kΩ in a compatible package. To meet requirements for ≥40kΩ across the voiceband, P3190 can be used in an application circuit described herein. P3190 is certified to IEC 60950 and UL 60950. P3190 is a UL Recognized Component and is supported by an IEC CB Test Certificate. ETALDOC 725/12 Page 1 of 5 October 2007 P3190 SPECIFICATIONS Electrical At T = 25°C unless otherwise stated. Parameter Conditions Min Typ Max Units Voltage (1) isolation 50Hz DC 3.88 5.5 - - kVrms kV Input impedance(4) 300Hz - 3.4kHz, 1Vrms, circuit as Fig.2. 10 - - kΩ Operating range: Functional Storage(3) Humidity Ambient temperature -25 –40 - - +85 +125 95 °C °C %R.H. 882 - 1055 Ω 18 - 22 mH Lumped equivalent circuit parameters as Fig. 1 DC resistance, RDC(2) Sum of windings Leakage inductance ΔL Shunt inductance Lp 200Hz 10mV 6.5 - 16 H Shunt loss Rp 200Hz 10mV 22 - 66 kΩ Notes 1. Components are 100% tested at 6.5 kVDC. 2. Caution: do not pass DC through windings. Telephone line current, etc. must be diverted using choke or semiconductor line hold circuit. 3. 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. 4. For applications requiring higher input impedance (e.g. ≥40kΩ), see application circuits below. ETALDOC 725/12 Page 2 of 5 Equivalent Circuit Fig. 1 ½ L ½R ½R ½ L IDEAL 1:1 October 2007 P3190 Reference Circuit In practice, the 47kΩ load can be increased without limit. The DC blocking capacitor should be maintained within the range 0.22µF to 0.33µF to obtain a flat frequency response and input impedance to specification. Fig 2 0.27µF 47k Zin 40kΩ APPLICATION CIRCUITS For applications requiring impedance greater than 40kΩ for parallel-connected Terminal Equipment (e.g. ETSI TS 103 021, ≥40kΩ, 200Hz – 4.3kHz) the following circuits may be helpful. At the expense of a small loss, the circuit in Fig. 3 provides an impedance exceeding 40kΩ from DC upwards. Fig 3 39k 47n 270k P3190 Zin > 40kΩ Due to the finite primary inductance of the P3190, the circuit of Fig. 3 suffers from low frequency rolloff below 500Hz. At the expense of around 6dBV loss, the circuit of Fig. 4 provides a relatively flat response from 300Hz to 4kHz. Fig 4 39k 68n 6.8n 39k RLoad Vout The load resistance, RLoad, across which the output voltage appears, should be a minimum of 470kΩ, and can be increased without limit. P3190 Zin > 40kΩ ETALDOC 725/12 Page 3 of 5 October 2007 P3190 CONSTRUCTION Dimensions 2.54 2.54 Fig 5 (0.1) (0.1) Connections Fig 6 13.0 max (0.51) e3 9.0 max (0.36) 7.0 max (0.28) 1.5 (0.06) NOTE: 1 6 2 5 3 4 1.77 (0.07) 1.32 (0.052) Tolerance ± 0.3mm Terminals electroplated pure tin (Sn) 5µm minimum. JESD97 c ategory = e3. Terminal size : 1.5 (0.06) long, 1.32 (0.05) wide Dimensions shown are in millimetres (inches) Dimensions shown are in millimetres (inches). Geometric centres of outline and pad grid coincide within a tolerance circle of 0.3mm∅. Windings may be used interchangeably as primary or secondary. 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) DC current Storage temperature 4.6 kVrms, 6.5kVDC 100μA -40°C to +125°C Soldering temperature Profile peak 260°C 10s Recommended peak body temperature 245°C in accordance with IPC/JEDEC J-STD-033. ETALDOC 725/12 Page 4 of 5 Certified by BSI to IEC 60950 Third Edition (1999) (IEC CB Test Certificate No. GB592W) subclauses 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 +85°C 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. October 2007 P3190 ORDERING CODE COPYRIGHT ETAL, P3190 and P2769 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. P3190 TR = Tape and Reel (Blank) = Bulk in tubes. Carrier tape width 24mm, 500 parts per 13” reel. British Patent No. 2283195 US Patent No. 5879598 European Patent No. 0725719 © 1999 - 2007 Profec Technologies Ltd. Reproduction prohibited. E203175 ETAL Group Oy, Kuormatie 14, FIN-03101, Nummela Telephone: +358 (0)20 7500 330 Fax: +358 (0)20 7500 333 Website: www.etalgroup.com Email: [email protected] ETALDOC 725/12 Page 5 of 5 ISO 9001 FM 25326 October 2007