1605C www.murata-ps.com Lan-Pak for CSMA/CD Systems SELECTION GUIDE Min. Max. Max. Max. Min. Primary Leakage Inerwinding DC Resistance ET Constant Order Code Turns Ratio Inductance Inductance Capacitance H Vs H pF 1605C 1:1 26.0 0.2 1.8 0.2 8 ABSOLUTE MAXIMUM RATINGS Operating free air temperature range 0C to 70C FEATURES -60C to 125C Storage temperature range RoHS compliant Isolation voltage (ash tested for 1 second) 500Vrms 500Vrms isolation 1 SOLDERING INFORMATION Industry-standard footprint Peak wave solder temperature, 1.5mm from case 300C for 10 seconds Pin nish Matte Tin Compatible with standard networks All specications typical at T =25C. Backward compatible with A 1 For further information, please visit www.murata-ps.com/rohs Sn/Pb soldering systems TECHNICAL NOTES ISOLATION VOLTAGE REPEATED HIGH-VOLTAGE ISOLATION TESTING DESCRIPTION Hi Pot Test, Flash Tested, Withstand Voltage, Proof Volt- It is well known that repeated high-voltage isolation The 1605C is a package of unity-turns-ratio age, Dielectric Withstand Voltage & Isolation Test Voltage testing of a barrier component can actually degrade isolation transformers. The transformers are are all terms that relate to the same thing, a test voltage, isolation capability, to a lesser or greater degree applied for a specied time, across a component designed depending on materials, construction and environ- designed to have fast rise times with low phase to provide electrical isolation, to verify the integrity of that ment. This series has toroidal isolation transformers, shift and insertion loss to reduce signal distortion. isolation. with no additional insulation between primary and The high shunt impedance of these devices secondary windings of enameled wire. While parts All products in this series are 100% production tested at minimises system loading and enables the correct can be expected to withstand several times the their stated isolation voltage. termination conditions to be accurately dened by stated test voltage, the isolation capability does de- A question commonly asked is, What is the continuous means of resistors. The devices can be used as pend on the wire insulation. Any material, including voltage that can be applied across the part in normal opera- network-node isolators in CSMA/CD systems. this enamel (typically polyurethane) is susceptible tion to eventual chemical degradation when subject to For a part holding no specic agency approvals both input very high applied voltages thus implying that the and output should normally be maintained within SELV limits number of tests should be strictly limited. We there- i.e. less than 42.4V peak, or 60VDC. The isolation test volt- fore strongly advise against repeated high voltage age represents a measure of immunity to transient voltages isolation testing, but if it is absolutely required, that and the part should never be used as an element of a safety the voltage be reduced by 20% from specied test isolation system. The part could be expected to function cor- voltage. rectly with several hundred volts offset applied continuously This consideration equally applies to agency recog- across the isolation barrier but then the circuitry on both nized parts rated for better than functional isolation sides of the barrier must be regarded as operating at an where the wire enamel insulation is always supple- unsafe voltage and further isolation/insulation systems must mented by a further insulation system of physical form a barrier between these circuits and any user-acces- spacing or barriers. sible circuitry according to safety standard requirements. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support KMP 1605C D01 Page 1 of 21605C Lan-Pak for CSMA/CD Systems PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS PIN CONNECTIONS 16 15 14 13 12 11 10 9 22.50 (0.886) 6.86 1605C (0.270) XYYWW 123 4 56 7 8 TUBE DIMENSIONS 9.6 (0.374) 5.4 (0.213) 0.250.05 13.2 (0.0010.002) (0.520) 0.5 (0.020) 8.85 (0.348) 0.260.05 (0.010.002) 4.8 (0.189) 14.4 (0.567) Tube length: 520mm (20.5) All dimensions in mm (inches) 0.25 (0.001) unless otherwise stated. All dimensions in mm (inches) 0.25 (0.001) unless otherwise stated. Package weight: 1.7g Typ. Package quantity: 20 Murata Power Solutions, Inc. Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply 11 Cabot Boulevard, Manseld, MA 02048-1151 U.S.A. the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specications are subject to change without ISO 9001 and 14001 REGISTERED notice. 2018 Murata Power Solutions, Inc. www.murata-ps.com/support KMP 1605C D01 Page 2 of 2