ST 1a1b/2a 8A ST RELAYS 3. High breakdown voltage Optimal 6. Automatic cleaning possible for control in 250 V power circuits The sealed design means that these High breakdown voltage has been relays can undergo immersion in achieved. Between contacts and coil of automatic washing systems and are 3,750 Vrms Surge breakdown voltage suitable for automatic soldering. Even between coil and contact of 6,000 V, in difficult environments, the contacts and between open contacts of remain reliable. 1,200 Vrms mean that these relays are 7. Easy to design PC board patterns suitable even for 250 V power circuit Features 4/10 dual-in-line terminals. control. Because the lead spacing has a pitch 4. Improved stability greater than 7.54 mm .297 inch, Conforms to all types of safety designers can make easy adjustments standards. with the width of the land size. This, Insulating distance of more than 3 mm along with the large insulation secured, approx. 4 mm. Complies with distance, simplifies the drawing of PC Japan Electrical Appliance and board patterns. FEATURES Material Safety Law requirements for 8. To improve soldering efficiency, 1. Even with small form factor, operating 200 V power supply circuits, preapplication of solder to the sensitive enough for direct IC- and conforms with UL, CSA and VDE terminals is recommended. driving standards. 9. Sockets are available. The dimensions of this high-density 5. Latching types available 4-gap balanced armature are 31 mm In addition to single side stable types, 14 mm 11 mm 1.220 inch .551 inch convenient 2 coil latching types with .433 inch. Despite this small size, memory functions are also available. high sensitivity is achieved by a Moreover, we offer 2 Form A mechanism that incorporates high- specifications which, with double pole efficiency polarized magnetic circuits switching for applications such as along with our exclusive spring 250 V power circuit switching, can alignment method. With an minimum enable safer designs. operating power of about 150 mW, nominal operating power of 240 mW, this relay can be directly driven by transistor or chip controllers. 2. High switching capability Strong against lamp inductive loads, maximum switching capacity has reached 3,040 VA (8A 380V AC). ORDERING INFORMATION ST F Contact arrangement 1: 1 Form A 1 Form B 2: 2 Form A Operating function Nil: Single side stable L: 1 coil latching L2: 2 coil latching Coil voltage DC 3, 5, 6, 9, 12, 24, 48 V Contact material F: AgSnO2 type contact Note: UL/CSA, VDE type is standard. ds 61A09 en st: 070313D 1ST TYPES Single side stable 1 coil latching 2 coil latching Contact arrangement Nominal coil voltage Part No. Part No. Part No. 3V DC ST1-DC3V-F ST1-L-DC3V-F ST1-L2-DC3V-F 5V DC ST1-DC5V-F ST1-L-DC5V-F ST1-L2-DC5V-F 6V DC ST1-DC6V-F ST1-L-DC6V-F ST1-L2-DC6V-F 1 Form A 1 Form B 9V DC ST1-DC9V-F ST1-L-DC9V-F ST1-L2-DC9V-F 12V DC ST1-DC12V-F ST1-L-DC12V-F ST1-L2-DC12V-F 24V DC ST1-DC24V-F ST1-L-DC24V-F ST1-L2-DC24V-F 48V DC ST1-DC48V-F ST1-L-DC48V-F ST1-L2-DC48V-F 3V DC ST2-DC3V-F ST2-L-DC3V-F ST2-L2-DC3V-F 5V DC ST2-DC5V-F ST2-L-DC5V-F ST2-L2-DC5V-F 6V DC ST2-DC6V-F ST2-L-DC6V-F ST2-L2-DC6V-F 2 Form A 9V DC ST2-DC9V-F ST2-L-DC9V-F ST2-L2-DC9V-F 12V DC ST2-DC12V-F ST2-L-DC12V-F ST2-L2-DC12V-F 24V DC ST2-DC24V-F ST2-L-DC24V-F ST2-L2-DC24V-F 48V DC ST2-DC48V-F ST2-L-DC48V-F ST2-L2-DC48V-F Standard packing: Tube: 50 pcs. Case: 500 pcs. RATING 1. Coil data 1) Single side stable Nominal operating Nominal coil Pick-up voltage Drop-out voltage Coil resistance Nominal operating Max. allowable voltage current voltage (at 20C 68F) (at 20C 68 F) 10% (at 20 C 68F) power (at 20 C 68 F) 10% (at 20 C 68F) 3V DC 78mA 38 5V DC 47mA 105 6V DC 40mA 150 80%V or less of 10%V or more of 150%V of 9V DC nominal voltage nominal voltage 25mA 360 240mW nominal voltage (Initial) (Initial) 12V DC 20mA 600 24V DC 10mA 2,400 48V DC 5mA 9,000 2) 1 coil latching Nominal operating Nominal coil Pick-up voltage Drop-out voltage Coil resistance Nominal operating Max. allowable voltage current voltage (at 20C 68F) (at 20C 68 F) 10% (at 20 C 68F) power (at 20 C 68 F) 10% (at 20 C 68F) 3V DC 37mA 80 5V DC 21mA 230 6V DC 18mA 330 80%V or less of 10%V or more of 150%V of 9V DC nominal voltage nominal voltage 12mA 730 130mW nominal voltage (Initial) (Initial) 12V DC 9mA 1,300 24V DC 5mA 5,000 48V DC 2.7mA 18,000 3) 2 coil latching Nominal operating Coil resistance Nominal operating current Nominal coil Set voltage Reset voltage Max. allowable voltage 10% (at 20 C 68F) power 10% (at 20 C 68F) voltage (at 20C 68F) (at 20C 68 F) (at 20 C 68 F) Set coil Reset coil Set coil Reset coil Set coil Reset coil 3V DC 75mA 75mA 40 40 5V DC 45mA 45mA 110 110 6V DC 37mA 37mA 155 155 80%V or less of 80%V or less of 150%V of 9V DC nominal voltage nominal voltage 25mA 25mA 360 360 240mW 240mW nominal voltage (Initial) (Initial) 12V DC 18mA 18mA 640 640 24V DC 10mA 10mA 2,400 2,400 48V DC 4.7mA 4.7mA 10,200 10,200 2 ds 61A09 en st: 070313D