766 Series www.murata-ps.com Pulse Transformers 1 SELECTION GUIDE Turns Order Code Ratio ±2% μH Vμs μH pF Ω Vrms 76601/1C 1:1 1916 17.5 0.60 49 1.50 76601/2C 1:1 492 8.5 0.30 22 0.80 B 1 FEATURES 76601/3C 1:1 219 5.5 0.25 12 0.50 500 n RoHS compliant 76602/1C 1:1:1 2060 17.5 0.60 72 1.50 C 76611/2C 4:1:1 643 9.92 1.70 13 0.80 E 2 n 5 Configurations 76615/1C 1CT:1CT 3200 45 4.00 75 1.00 D n Inductance to 11.7mH Please note: For additional variants please see 786 series datasheet. n Up to 50 Vμs ET n Industry standard pinout 76600/1C 1:1 1916 17.5 0.60 49 1.50 76600/2C 1:1 492 8.5 0.30 22 0.80 n 500Vrms Isolation A 76600/3C 1:1 219 5.5 0.25 14 0.50 n PCB mounting 76600/4C 1:1 50 4.0 0.20 10 0.40 1 500 76601/20C 1:1 20.1 2.5 0.20 5 0.20 n UL 94 V-0 package materials 76601/23C 1:1 700 10.5 0.20 35 0.20 B n Toroidal construction 76601/24C 1:1 11.7mH 50.5 0.86 250 1.35 n Fully encapsulated 76616/3C 2CT:1CT 4350 23 3.00 35 1.00 D 2 ABSOLUTE MAXIMUM RATINGS DESCRIPTION Operating free air temperature range 0°C to 70°C The 766 Series is a range of general purpose Storage temperature range -60°C to 125°C pulse transformers. Common applications include line coupling, impedance-matching, or isolating. 1 SOLDERING INFORMATION The devices can also be used in small isolated Peak wave solder temperature 300˚C for 10 seconds power supplies or as common-mode chokes in filtering applications. Pin finish Matte tin with nickel pre-plate 1 For further information, please visit www.murata-ps.com/rohs All specifications typical at T =25°C. A For full details go to www.murata-ps.com/rohs www.murata-ps.com All enquiries: www.murata-ps.com/support KMP_766C_H02 Page 1 of 3 Min. Primary Inductance Min. Primary Constant, ET Max. Leakage Inductance Max. Interwinding Capacitance Max. DC Resistance Max. Isolation Voltage Pin Connection Style Mechanical Dimensions 766 Series Pulse Transformers PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS 1 2 12.70 (0.500) Max. 12.70 (0.500) Max. 1 2 1 2 610 3 602 4 6C 1C 5 6 5 6 XYYWW XYYWW 0.56±0.05 (0.022±0.002) 0.56±0.05 (0.022±0.002) 10.16 (0.400) 10.16 (0.400) Unless otherwise stated all dimensions in mm (inches) ±0.25 (0.01). All pins on a 2.54 (0.1) pitch and within ±0.25 (0.01) of true position. Package Weight: 1.1g Typ. RECOMMENDED FOOTPRINT DETAILS TUBE DIMENSIONS 2.54 (0.100) x6 HOLES* Ø1.00+0.15-0.00 (Ø0.039+0.006-0.000) Holes may be omitted for variants with fewer than 6 pins. Unless otherwise stated all dimensions in mm (inches) ±0.25 (0.01). Tube length: 520±2.0 (20.47±0.08). All pins on a 2.54 (0.1) pitch and within ±0.25 (0.01) of true position. Unless otherwise stated all dimensions in mm (inches) +0.50 (0.02)/-0.00 (0.00). www.murata-ps.com/support KMP_766C_H02 Page 2 of 3 2.54 (0.100) 5.08 (0.200) 5.84 (0.230) 8.89 (0.350) Max. 2.54 (0.100) 10.00 (0.394) 6.35 (0.250) 5.84 (0.230) 2.54 (0.100) 8.89 (0.350) Max. 2.54 (0.100) 10.00 (0.394) 6.35 (0.250) 766 Series Pulse Transformers PACKAGE SPECIFICATIONS (continued) PIN CONNECTION STYLE - 6 PIN DIP (TOP VIEW) A B C C D E PRI SEC 1 1 2 1 2 1 2 1 2 1 2 PRI PRI SEC 3 4 3 4 3 4 PRI SEC SEC 1 PRI SEC 5 6 5 6 5 6 5 6 5 6 SEC 2 SEC 2 TECHNICAL NOTES ISOLATION VOLTAGE REPEATED HIGH-VOLTAGE ISOLATION TESTING ‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand It is well known that repeated high-voltage isolation testing of a barrier component Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test can actually degrade isolation capability, to a lesser or greater degree depending on voltage, applied for a specified time, across a component designed to provide electrical materials, construction and environment. This series has toroidal isolation transformers, isolation, to verify the integrity of that isolation. with no additional insulation between primary and secondary windings of enameled wire. While parts can be expected to withstand several times the stated test voltage, All products in this series are 100% production tested at their stated isolation voltage. the isolation capability does depend on the wire insulation. Any material, including this A question commonly asked is, “What is the continuous voltage that can be applied enamel (typically polyurethane) is susceptible to eventual chemical degradation when across the part in normal operation?” subject to very high applied voltages thus implying that the number of tests should be For a part holding no specific agency approvals both input and output should normally strictly limited. We therefore strongly advise against repeated high voltage isolation be maintained within SELV limits i.e. less than 42.4V peak, or 60VDC. The isolation test testing, but if it is absolutely required, that the voltage be reduced by 20% from speci- voltage represents a measure of immunity to transient voltages and the part should fied test voltage. never be used as an element of a safety isolation system. The part could be expected This consideration equally applies to agency recognised parts rated for better than to function correctly with several hundred volts offset applied continuously across the functional isolation where the wire enamel insulation is always supplemented by a isolation barrier; but then the circuitry on both sides of the barrier must be regarded further insulation system of physical spacing or barriers. as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according to safety standard requirements. This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/ 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 the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2018 Murata Power Solutions, Inc. www.murata-ps.com KMP_766C_H02 Page 3 of 3