VDE 1a1b/2a 8A polarized power relays RoHS compliant FEATURES 1. Even with small form factor, sensitive enough for direct ICdriving The dimensions of this high-density 4gap balanced armature are 31 mm × 14 mm × 11 mm 1.220 inch × .551 inch × .433 inch. Despite this small size, high sensitivity is achieved by a mechanism that incorporates highefficiency polarized magnetic circuits along with our exclusive spring alignment method. With an minimum 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 High contact pressure, low contact bounce, and forced separation structure that radically improves resistance to contact welding (1 Form A 1 Form B type equivalent to TV-3). Strong against lamp inductive loads, maximum switching capacity has reached 3,040 VA (8A 380V AC). 3. High breakdown voltage – Optimal for control in 250 V power circuits High breakdown voltage has been achieved. Between contacts and coil of 3,750 Vrms; Surge breakdown voltage between coil and contact of 6,000 V, and between open contacts of 1,200 Vrms mean that these relays are suitable even for 250 V power circuit control. 4. Improved stability Conforms to all types of safety standards. Insulating distance of more than 3 mm secured. Complies with Japan Electrical Appliance and Material Safety Law requirements for operating 200 V power supply circuits, and conforms with UL, CSA and VDE standards. 5. Latching types available In addition to single side stable types, convenient 2 coil latching types with memory functions are also available. Moreover, we offer 2 Form A specifications which, with double pole switching for applications such as 250 V power circuit switching, can enable safer designs. ST RELAYS 6. Automatic cleaning possible The sealed design means that these relays can undergo immersion in automatic washing systems and are suitable for automatic soldering. Even in difficult environments, the contacts remain reliable. 7. Easy to design PC board patterns Features 4/10 dual-in-line terminals. Because the lead spacing has a pitch greater than 7.54 mm .297 inch, designers can make easy adjustments with the width of the land size. This, along with the large insulation distance, simplifies the drawing of PC board patterns. 8. To improve soldering efficiency, preapplication of solder to the terminals is recommended. 9. Sockets are available. ORDERING INFORMATION ST F Contact arrangement 1: 1 Form A 1 Form B 2: 2 Form A Operating function Nil: Single side stable L2: 2 coil latching Nominal coil voltage DC 3, 5, 6, 9, 12, 24, 48 V Contact material F: AgSnO2 type contact Note: Certified by UL, CSA, VDE and SEV ASCTB210E 201202-T Panasonic Corporation Automation Controls Business Unit ST industrial.panasonic.com/ac/e/ ST TYPES Contact arrangement Nominal coil voltage 1 Form A 1 Form B 2 Form A 3V DC 5V DC 6V DC 9V DC 12V DC 24V DC 48V DC 3V DC 5V DC 6V DC 9V DC 12V DC 24V DC 48V DC Single side stable Part No. ST1-DC3V-F ST1-DC5V-F ST1-DC6V-F ST1-DC9V-F ST1-DC12V-F ST1-DC24V-F ST1-DC48V-F ST2-DC3V-F ST2-DC5V-F ST2-DC6V-F ST2-DC9V-F ST2-DC12V-F ST2-DC24V-F ST2-DC48V-F 2 coil latching Part No. ST1-L2-DC3V-F ST1-L2-DC5V-F ST1-L2-DC6V-F ST1-L2-DC9V-F ST1-L2-DC12V-F ST1-L2-DC24V-F ST1-L2-DC48V-F ST2-L2-DC3V-F ST2-L2-DC5V-F ST2-L2-DC6V-F ST2-L2-DC9V-F ST2-L2-DC12V-F ST2-L2-DC24V-F ST2-L2-DC48V-F Standard packing: Carton: 50 pcs.; Case: 500 pcs. * For sockets, see page 113. RATING 1. Coil data 1) Single side stable 3V DC Nominal operating current [±10%] (at 20°C 68°F) 75mA 5V DC 6V DC 9V DC 12V DC 24V DC 48V DC 47mA 40mA 25mA 20mA 10mA 4.7mA Nominal coil voltage Pick-up voltage (at 20°C 68°F) Drop-out voltage (at 20°C 68°F) 80%V or less of nominal voltage (Initial) 10%V or more of nominal voltage (Initial) Set voltage (at 20°C 68°F) Reset voltage (at 20°C 68°F) Coil resistance [±10%] (at 20°C 68°F) Nominal operating power Max. applied voltage (at 20°C 68°F) 240mW 150%V of nominal voltage 38Ω 105Ω 150Ω 360Ω 600Ω 2,400Ω 9,000Ω 2) 2 coil latching Nominal coil voltage 3V DC 5V DC 6V DC 9V DC 12V DC 24V DC 48V DC 80%V or less of nominal voltage (Initial) Panasonic Corporation 80%V or less of nominal voltage (Initial) Nominal operating current [±10%] (at 20°C 68°F) Set coil Reset coil 75mA 75mA 45mA 37.5mA 25mA 18.8mA 10mA 4.7mA 45mA 37.5mA 25mA 18.8mA 10mA 4.7mA Automation Controls Business Unit Coil resistance [±10%] (at 20°C 68°F) Set coil 40Ω Reset coil 40Ω 110Ω 155Ω 360Ω 640Ω 2,400Ω 10,200Ω 110Ω 155Ω 360Ω 640Ω 2,400Ω 10,200Ω Nominal operating power Set coil Reset coil 240mW 240mW industrial.panasonic.com/ac/e/ Max. applied voltage (at 20°C 68°F) 150%V of nominal voltage ASCTB210E 201202-T ST 2. Specifications Characteristics Contact Rating Item Arrangement Contact material Contact resistance (Initial) Max. switching power (resistive load) Max. switching voltage Max. switching current Minimum operating power Nominal operating power Min. switching capacity (Reference value)*1 Insulation resistance (Initial) (at 25°C, 50% relative humidity) Specifications 1 Form A 1 Form B, 2 Form A Au-flashed AgSnO2 type Max. 30 mΩ (By voltage drop 6 V DC 1A) 3,040 VA, 150 W 380 V AC, 250 V DC 8A 150mW (Single side stable, 2 coil latching) 240mW (Single side stable, 2 coil latching) 100 mA 5V DC Min. 1,000MΩ (at 500V DC) Measurement at same location as “Breakdown voltage” section. Between open contacts Between contact sets Between contact and coil Surge breakdown voltage (Initial)*2 1,200 Vrms for 1 min. (Detection current: 10 mA) 2,000 Vrms for 1 min. (Detection current: 10 mA) 3,750 Vrms for 1 min. (Detection current: 10 mA) 6,000 V (Between contact and coil) Max. 15 ms [Max. 15 ms] (Nominal coil voltage applied to the coil, excluding contact bounce time.) Max. 10 ms [Max. 15 ms] (Nominal coil voltage applied to the coil, excluding contact bounce time.) (without diode) Max. 55°C (By resistive method, nominal voltage applied to the coil; contact carrying current: 8A.) Min. 196 m/s2 (Half-wave pulse of sine wave: 11 ms; detection time: 10µs.) Min. 980 m/s2 (Half-wave pulse of sine wave: 6 ms.) 10 to 55 Hz at double amplitude of 2 mm (Detection time: 10µs.) 10 to 55 Hz at double amplitude of 3 mm Min. 107 (at 180 times/min.) Min. 105 (8 A 250 V AC resistive) (ON : OFF = 1 s : 5 s) Ambient temperature: –40°C to +60°C –40°F to +140°F; Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature) 30 cps Approx. 10g .353 oz Breakdown voltage (Initial) Electrical characteristics Operate time [Set time] (at 20°C 68°F) Release time [Reset time] (at 20°C 68°F) Temperature rise (coil) (at 60°C 140°F) Functional Destructive Functional Vibration resistance Destructive Mechanical Electrical Shock resistance Mechanical characteristics Expected life Conditions for operation, transport and storage*3 Conditions Max. operating speed Unit weight Notes: *1. This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the actual load. *2. Wave is standard shock voltage of ±1.2×50µs according to JEC-212-1981 *3. The upper limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value. Refer to Usage, transport and storage conditions in NOTES. REFERENCE DATA 2. Coil temperature rise 10 Current, A 5 AC inductive load (cosϕ=0.4) 2 DC resistive load 1 0.5 Temperature rise, °C AC resistive load DC inductive load (L/R=40ms) 3. Influence of adjacent mounting 100 40 90 30 Rated of change, % 1. Max. switching power 80 70 60 Contact current 8A 50 0A 40 30 0 Pick-up voltage -10 -20 -30 10 20 Drop-out voltage 10 20 0.2 0 20 50 ASCTB210E 201202-T 100 200 300 Voltage, V 600 1000 0 Panasonic Corporation 0.2 0.4 0.6 0.8 1.0 1.2 Coil operating power, W Automation Controls Business Unit -40 5 10 15 20 Inter-relay distance, mm industrial.panasonic.com/ac/e/ ST DIMENSIONS (mm inch) The CAD data of the products with a CAD Data mark can be downloaded from: http://industrial.panasonic.com/ac/e/ PC board pattern (Bottom view) External dimensions CAD Data 2 coil latching types only. 14 .551 31.0 1.220 11.0 .433 0.3 .012 3.5 .138 7.62 .300 10.16 .400 1.0 .039 1 8 2.54 .100 7.62 .300 0.3 .012 0.6 dia. .024 dia. 2 3 7 6 10.16 .400 8-1.4 dia. 8-.055 dia. 2.54 .100 Tolerance: ±0.1 ±.004 4 5 0.5 .020 1.0 .039 1.0 .039 General tolerance: ±0.5 ±.020 Schematic (Bottom view) Single side stable 1 Form A 1 Form B 2 Form A 1 8 – + 7 6 4 1 5 8 – 2 coil latching 1 Form A 1 Form B 2 Form A + 7 6 4 1 5 8 – + 2 3 7 6 (Deenergized condition) + – 4 1 5 8 – + 2 3 7 6 + – 4 5 (Reset condition) SAFETY STANDARDS UL/C-UL (Recognized) File No. Contact rating E43028 8A 250V AC 1/4HP 125, 250V AC 5A 30V DC CSA (Certified) File No. Contact rating LR26550 8A 250V AC 1/4HP 125, 250V AC etc. 5A 30V DC File No. 1017 VDE (Certified) Contact rating 8A 250V AC (cosφ =1.0) 4A 250V AC (cosφ =0.4) 5A 30V DC TV rating (UL/CSA) File No. Rating UL: E43028 CSA: LR26550 — File No. 98-1 10289 SEV Contact rating 8A 380V AC NOTES 1. PC board patterns for 2 coil latching types When applying relays in power supply operation circuits for finished products regulated by the Electrical Appliance and Material Safety Law, use the pattern shown below. Terminal No. 1 2 3 4 2. Soldering should be done under the following conditions: 1) 250°C 482°F within 10s 300°C 572°F within 5s 350°C 662°F within 3s 2) For automatic cleaning, the boiling method is recommended. Avoid ultrasonic cleaning which subjects the relays to high frequency vibrations, which may cause the contacts to stick. It is recommended that a fluorinated hydrocarbon or other alcoholic solvents be used. 3. When using, please be aware that the a contact and b contact sides of 1 Form A and 1 Form B types may go on simultaneously at operate time and release time. For Cautions for Use. Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/ ASCTB210E 201202-T