General-purpose Latching Relay MYK Magnetic Latching Relay Ideal for Memory and Data Transmission Circuits • Double-winding latch system that holds residual magnetism. • Changes due to aging are negligible because of use of special magnetic materials, thus ensuring long continuous holding time. • Little change in characteristics such as contact follow, contact pressure, etc., throughout its long life. • Excellent vibration/shock resistance. • Easy monitoring of ON/OFF operation thanks to the built-in operation indicator mechanism. • Same outline dimensions as the MY Miniature Power Relay. Ordering Information ■ List of Models Contact form Plug-in/solder terminal model DPDT MY2K PCB terminal model MY2K-02 ■ Accessories (Order Separately) Connecting Sockets No. of poles Front-connecting Socket Screw terminals Back-connecting Socket Solder terminals Wire-wrap terminals PCB terminals Without Relay Hold-down Clip PYF14A-E PYF14A PYF14-N PY14 PY14QN PY14-02 With Hold-down Clip --- PY14-Y1 PY14QN-Y1 --- Note: Refer to the MY Datasheet for detail information on the Relay Hold-down Clips and Relay-mounting Sockets. 74 General-purpose Latching Relay MYK Specifications ■ Coil Ratings Rated voltage Set coil Rated current 50 Hz AC DC Reset coil Resistance Rated current 60 Hz 56 mA 50 Hz 72 Ω 39 mA Must-set voltage Resistance Max. voltage % of rated voltage Power consumption (Approx.) Set coil 60 Hz 38.2 mA 130 Ω 12 V 57 mA 24 V 27.5 mA 26.4 mA 320 Ω 18.6 mA 18.1 mA 550 Ω 50 V 14.0 mA 13.4 mA 1,400 Ω 3.5 mA 3.4 mA 3,000 Ω 100 V 7.1 mA 5,400 Ω 3.5 mA 3.4 mA 3,000 Ω 12 V 110 mA 110 Ω 50 mA 235 Ω 24 V 52 mA 470 Ω 25 mA 940 Ω 6.9 mA Mustreset voltage 80% max. 80% max. 110% Reset coil 0.6 to 0.9 0.2 to 0.5 (60 Hz) (60 Hz) 1.3 W 0.6 W Note: 1. For AC models, the rated current values are half-wave rectified current values measured with a DC ammeter. 2. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/–20% for AC rated current and ±15% for DC rated current, and +15% for DC coil resistance. 3. The AC coil resistance values are for reference only. 4. Performance characteristic data are measured at a coil temperature of 5°C to 35°C. ■ Contact Ratings Resistive load (cosφ = 1) Item Rated load 3 A at 220 VAC, 3 A at 24 VDC Rated carry current 3A Max. switching voltage 250 VAC, 125 VDC Max. switching current 3A Max. switching power 660 VA, 72 W Failure rate* (reference value) 1 mA at 1 VDC *Note: Inductive load (cosφ = 0.4) (L/R = 7 ms) 0.8 A at 220 VAC, 1.5 A at 24 VDC 176 VA, 36 W P level: λ60 = 0.1 x 10-6/operation ■ Characteristics Contact resistance 50 mΩ max. Set time Time: AC: 30 ms max.; DC: 15 ms max. Min. pulse width: AC: 60 ms.; DC: 15 ms. Reset time Max. operating frequency Time: AC: 30 ms max.; DC: 15 ms max. Min. pulse width: AC: 60 ms.; DC: 15 ms. Mechanical: 18,000 operations/hr Electrical: 1,800 operations/hr (under rated load) Insulation resistance 100 MΩ min. (at 500 VDC) Dielectric strength 1,500 VAC, 50/60 Hz for 1 min (1,000 VAC between contacts of same polarity and between set and reset coils) Vibration resistance Destruction: 10 to 55 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude) Malfunction: 10 to 55 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude) Shock resistance Destruction: 1,000 m/s2 Malfunction: 200 m/s2 Endurance Mechanical: 100,000,000 operations min. (at 18,000 operations/hr) Electrical: 200,000 operations min. (at 1,800 operations/hr) Ambient temperature Operating: Ambient humidity Operating: 5% to 85% Weight Approx. 30 g –55°C to 60°C (with no icing) Note: The data shown above are initial values. General-purpose Latching Relay MYK 75 Engineering Data AC inductive load (cosφ = 0.4) DC resistive load DC inductive load (L/R = 7 ms) Endurance Endurance (x103 operations) AC resistive load Endurance (x103 operations) Switching current (A) Maximum Switched Power 5,000 110 VAC resistive load 220 VAC resistive load 1,000 500 30 VDC resistive load 10 5,000 500 10 Switching current (A) Switching voltage (V) 110 VAC inductive load (cosφ = 0.4) 1,000 220 VAC inductive load (cosφ = 0.4) 30 VDC inductive load (L/R = 7 ms) Switching current (A) Dimensions MY2K 2.6 Ten, 1.2-dia. holes x 2.2 elliptic holes 0.5 28 max. 6.3 0.5 36 max. 21.5 max. 6.4 MY2K-02 2.6 Mounting Holes (Bottom View) 13.2 4.4 3.5 4.3 0.5 4.1 28 max. 6.3 36 max. 4 6.35 12.65 6.3 3.75 Ten, 1.3-dia. holes 21.5 max. Note: Dimensional tolerances are ±0.1 mm. 76 General-purpose Latching Relay MYK Terminal Arrangement/Internal Connections (Bottom View) AC Model DC Model Use at 220 VAC R Rs: 7.3 kΩ 3 W Rr: 14.3 kΩ 1 W Note: 1. Resistor is for ampere-turn compensation and is incorporated in the Relay rated at 50 VAC or above. 2. Pay attention to the polarity of the set and reset coils, as incorrect connection of positive and negative terminal will result in the Relay malfunctioning. When using the Relay rated at 110 VAC at a supply voltage of 220 VAC, be sure to connect external resistors Rs and Rr to the Relay. If the supply voltage is applied to the set and reset coils at the same time, the Relay will be put in the set state. ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. Cat. No. J013-E1-02 In the interest of product improvement, specifications are subject to change without notice. General-purpose Latching Relay MYK 77