Features • 5 VDC Version Compatible to Operate Directly from TTL or DTL Circuits Internal Clamping Diode Flame Retardant Epoxy Package PC Mountable • • • R42 Series General Purpose, 500mA DC SPST−NO SIP Reed Relay. D20 .810 (20.57) Max .280 (7.11) Pin #3 + Input 1 .270 (6.86) Typ .340 (8.6) Max Output 3 5 7 .125 (3.17) Min .110 (2.79) Max .200 (5.1) Typ .600 (15.2) Electrical Specifications DC OPERATED Contact Max. Cont. Max. Pick up Min. Drop out 500 50 mW .5 Amp 3.8 VDC 0.5 VDC D20 SPST− NO 850 77 mW .5 Amp 9 VDC 1 VDC D20 SPST− NO 2200 180 mW .5 Amp 18 VDC 2 VDC D20 Contact Arr. R42−1D .5−6 5/6 VDC SPST− NO R42−1D .5−12 12 VDC R42−1D .5−24 24 VDC NTE Type No. Coil Res. Ohms (Typ) Nom. Pwr. Nom. Voltage Diag No. Rating: 0.5 Amp switching current max. 1.5 Amp carry current max. Resistance: 200 milliohms max. initial Coil Coil Voltages: See Chart Pick−up Voltage: See Chart Drop−out Voltage: See Chart Operational Characteristics Timing Values . . . . . Operate Time: 330 µS at nominal voltage Release Time: 150 µS at nominal voltage Insulation Characteristics Dielectric Strength Across Open Contacts: 200 VDC Contact To Contact: 1000 VDC Environmental Characteristics Operating: −45°C to +85°C Storage: −60°C to +105°C Capacitance Across Open Contacts: 1pf Open Contacts To Coil: 2pf Life Mechanical: 5 x 106 (50,000,000) with appropriate contact protection 48 NTE Electronics, Inc. Voice (973) 748−5089 FAX (973) 748−6224 http://www.nteinc.com