New Generation EF2 DPDT Surface Mount Signal Relay Compact and Light Weight 2 Form C Contact Arrangement Low Power Consumption (50mW) Reduced Mounting Space: 15mm x 7.5mm High-breakdown Voltage of Coil to Contacts: 1500 Vac, 2500 V (2 x 10 s*) UL Recognised, CSA Certified Tube or Taped Packaging Specifications Contact form 2 Form C Contact material Silver alloy with gold alloy overlay Maximum switching power 30W 62.5 VA (resistive) Maximum switching voltage 220VDC 250 VAC Contact rating Maximum switching current 1A Maximum carrying current 1A Minimum contact ratings 100 mVDC, 100 A Initial contact resistance 50 m typ. Nonlatch type 50 to 70 mW Nominal operating power Single coil latch type 30 to 60 mW Double coil latch type 50 to 80 mW Operate time (excluding bounce) Approximately 3 ms without diode Release time (excluding bounce) Approximately 2 ms without diode Insulation resistance 1000 M at 500 V dc 1 Between open contacts 1000 VAC for one minute (1500 V surge, 10 x 16s* ) 1 Breakdown voltage Between adjacent contacts 1000 V surge for one minute (1500 V surge, 10 x 160s* ) 1500 VAC (for one minute) Between coil to contacts 2 2500V surge (2 x 10 s* ) 2 735 m/s (75G) (misoperating) Shock resistance 2 980 m/s (100G) (destructive failure) 10-55Hz, double amplitude 3 mm (20G) (misoperating) Vibration resistance 10-55Hz, double amplitude 5 mm (30G) (destructive failure) Ambient temperature -40C to+ 70C Coil temperature rise 7 degrees at nominal coil voltage (50 mW) 7 Nonload 1 x 10 operations 6 Running specifications 50 VDC, 0.1A (resistive) 1 x 10 operations at 85C Load 6 10 VDC, 10 mA (resistive) 1 x 10 operations at 85C Weight Approximately 2.2 g 1 2 * rise time: 10 s, fall time: 160 s * rise time: 2 s, fall time: 10 s Dimensions mm(inch) Schematics EF2 Series EF2-..NUX EF2-.. EF2-..NU 7.5 max 7.5 max 15.0 max 15.0 max (0.296) (0.296) (0.591) (0.591) Index mark of relay Non-latch type Single coil latch type Double coil latch type direction note2 note2 (not energised position) (reset position) (reset position) 5.08 5.08 5.08 5.08 2-2.54 2-2.54 (0.200) (0.200) 9.5 (2-0.100) 9.0 (0.200) (2-0.100) (0.200) S: Coil polarity of set (operate) (0.374) (0.354) R: Coil polarity of reset (release) EF2-..NUH EF2-..NUN 15.0 max 7.5 max 7.5 max 15.0 max (0.591) (0.296) (0.296) (0.591) note2 note2 5.08 5.08 5.08 5.08 2-2.54 2-2.54 (0.200) (0.200) 7.5 (2-0.100) 7.5 (0.200) (0.200) (2-0.100) (0.295) (0.295) Note 1. General tolerance: 0.2 (0.008) Note 2. This pair of pins at the right end applies to double coil latch type only. 1.0 1.0 (0.039) (0.039) 10.0 max 10.0 max (0.394) (0.394) 1.6 1.35 (0.053) (0.063) 10.6 max 10.35 max (0.418) (0.408)EF2 Part Number System Pad layout (bottom view) mm(inch) 1.0 (0.039) EF2-5 S NUH note 2 Feature Nil : Standard type NU : UL recognised CSA certified type NUX : High solder joint reliability (20 years) NUH Minimum footprint (7.5 x 15) NUN : High solder joint reliability with minimum footprint note 2 Latch type Nil : Non latch type S : Single coil latch type 5.08 3-2.54 T : Double coil latch type (0.200) (0.100) TYPE A B TYPE AB Nominal coil voltage EF2-.. 3.0 (0.118) 7.29 (0.287) 1.5, 3, 4.5, 5, 6, 9, 12, 24 volts EF2-..NU 3.0 (0.118) 7.29 (0.287) EF2-..NUH 2.0 (0.079 6.20 (0.248) EF2-..NUX 2.73 (0.101) 7.02 (0.276) EF2-..NUN 2.0 (0.079) 6.29 (0.248) EF2 series Note 1. General tolerance: 0.1 (0.004) Note 2. This pair of pads at the right end applies to double coil latch type only Part numbers Nonlatch type at 20C Part Number Nominal Coil Resistance Must Operate Must Release Nominal Coil Voltage VDC 10% Voltage VDC Voltage VDC operate power (mW) EF2-1.5NU 1.5 45 1.20 0.15 50 EF2-3NU 3 180 2.40 0.3 50 EF2-4.5NU 4.5 405 3.60 0.45 50 EF2-5NU 5 500 4.00 0.5 50 EF2-6NU 6 720 4.80 0.6 50 EF2-9NU 9 1473 7.20 0.9 55 EF2-12NU 12 2400 9.60 1.2 60 EF2-24NU 24 8229 19.20 2.4 70 Single coil latch type at 20C Part Number Nominal Coil Resistance Must Operate Must Release Nominal Coil Voltage VDC 10% Voltage VDC Voltage VDC operate power (mW) EF2-1.5SNU 1.5 75 1.20 0.13 30 EF2-3SNU 3 300 2.40 2.25 30 EF2-4.5SNU 4.5 675 3.60 3.38 30 EF2-5SNU 5 833 4.00 3.75 30 EF2-6SNU 6 1200 4.80 4.5 30 EF2-9SNU 9 2700 7.20 6.75 30 EF2-12SNU 12 4800 9.60 9 30 EF2-24SNU 24 9600 19.20 18 60 Double coil latch type at 20C Part Number Nominal Coil Resistance Must Operate Must Release Nominal Coil Voltage VDC 10% Voltage VDC Voltage VDC operate power (mW) S 45 1.20 EF2-1.5TNU 1.5 50 R 45 1.3 S 180 2.40 EF2-3TNU 3 50 R 180 2.25 S 405 3.60 EF2-4.5TNU 4.5 50 R 405 3.38 S 500 4.00 EF2-5TNU 5 50 R 500 3.75 S 720 4.80 EF2-6TNU 6 50 R 720 4.5 S 1620 7.20 EF2-9TNU 9 50 R 1620 6.75 S 2880 9.60 EF2-12TNU 12 50 R 2880 9 S 7200 19.20 EF2-24TNU 24 80 R 7200 18 Note S: Set Coil (pin No. 1 and 12) R: Reset Coil (pin No. 6 and 7) A B