00-07-17 PRODUKTINFORMATION Vi reserverar oss mot fel samt förbehåller oss rätten till ändringar utan föregående meddelande ELFA artikelnr 73-250-61 78250 trafo till MAX250
78250 Converter Transformer features p p p p p p p p p Maxim Compatible Isolation to 4kV Surface Mount Options Toroidal Construction Standard Pinout UL 94V-0 Package Material Fully Encapsulated Low Profile Industrial Temperature Range description The 78250 series of converter transformers are specifically designed for use with Maxim chipsets to provide isolated RS232 interfaces. Carefully controlled turns ratios ensure consistent performance whilst a toroidal construction minimises EMI.
78250 Converter Transformer absolute maximum ratings Operating free air temperature range · · · · · · · · · · · · · · · · · · · · · · · –40°C to 85°C Storage temperature range· · · · · · · · · · · · · · · · · · · · · · · · · · · · –50°C to 125°C Lead Temperature 1.
78250 Converter Transformer electrical specifications over operating free air temperature range1 78250V Package Style Parameter Conditions MIN NOM MAX Primary Inductance, LP 10kHz, 100mV 1.0 2.0 2.5 mH Leakage Inductance, LL 100kHz, 100mV 35 40 µH Interwinding Capacitance, CWW 100kHz, 100mV 9 12 D.C. Resistance, RDC <0.1VDC 1.4 1.
78250 Converter Transformer typical characteristics Isolated RS-232 interface IN4148 +5V 78250 8 EN 1 RTS SHUTDOWN 4 T1IN D1 2 VCC 14 D2 13 T1 T1L 3 6 1 2 3 1µF + 5 T2IN T2 T2L -V 13 + 4 +V 2 1 x4 OPTOS 2 TD 1 AC 5 6 4 3 T1DIN 4 T2DIN 6 T1 T2 + 1µF 1µF 10 VOUT +10 VOUT T1OUT 12 T2OUT 11 CTS SG CTS 9 R1OUT R1 5 R1L R1DIN 10 R1 R1IN 10 4 TD RD 12 R2OUT R2 6 R2L R2DIN 11 7 BYP GND R2 5 R2IN 9 RD ISO GND 14 DCD 9 8 3 2 7 RTS 6 DSR 1 4.
78250 Converter Transformer outline dimensions1 6 Pin DIP package style 9.52 MAX 1 8.89 MAX 78250 XYYWW 6.35 3.44±0.50 0.30 0.20 10.16 0.63 0.53 2.54 recommended footprint details 2.54 2.54 Ø1.20+0.15 -0.00 1 All dimensions in mm XX.XX ± 0.25mm. ±0.25mm of true position. All pins on a 2.
8250 Converter Transformer outline dimensions1 6 Pin SM package style 12.70 2 9.52 MAX 8.89 MAX 78250M XYYWW 6.35 0.30 0.20 0.90 2.54 0.63 0.53 recommended footprint details 1.60 2.54 1.00 11.50 1 All dimensions in mm XX.XX ± 0.25mm. ±0.25mm of true position. All pins on a 2.
INFORMATION The following Newport Components publications are also available : p The Power Components Handbook (also in CD ROM format) p EMC Design Guidelines Please contact Newport Components or your local supplier for a copy of these data books. FM 13273 / RS 31306 Newport Components Limited reserve the right to alter or improve the specification, internal design or manufacturing process at any time, without notice.
