MY2K AC120

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## **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. 

## **Orderin Information g** 

## I **List of Models** 

|**Contact form**|**Plug-in/solder**<br>**terminal model**|**PCB terminal**<br>**model**|
|---|---|---|
|**DPDT**|MY2K|MY2K-02|



## I **Accessories (Order Separately)** 

## **Connecting Sockets** 

|**No. of poles**|**Front-connecting Socket**|**Back-connecting Socket**|**Back-connecting Socket**|**Back-connecting Socket**|
|---|---|---|---|---|
||**Screw terminals**|**Solder terminals**|**Wire-wrap terminals**|**PCB terminals**|
|**Without Relay**<br>**Hold-down Clip**|PYF14A-E<br>PYF14A<br>PYF14-N|PY14|PY14QN|PY14-02|
|**With Hold-down**<br>**Clip**|---|PY14-Y1|PY14QN-Y1|---|



**Note:** Refer to the MY Datasheet for detail information on the Relay Hold-down Clips and Relay-mounting Sockets. 

> General-purpose Latching Relay **MYK** A-67 

**S ecifications p** 

## I **Coil Ratings** 

|**Rated voltage**|**Rated voltage**|**Set coil**|**Set coil**|**Set coil**|**Set coil**|**Reset coil**|**Reset coil**|**Reset coil**|**Must-set**<br>**voltage**|**Must-set**<br>**voltage**|**Must-**<br>**reset**<br>**voltage**|**Max.**<br>**voltage**|**Power**<br>**consumption**<br>**(Approx.)**|**Power**<br>**consumption**<br>**(Approx.)**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||**Rated current**||**Resistance**||**Rated current**||**Resistance**|**% of rated voltage**||||**Set coil**|**Reset**<br>**coil**|
|||**50 Hz**|**60 Hz**|||**50 Hz**|**60 Hz**||||||||
|AC|12 V|57 mA|56 mA|72 Ω||39 mA|38.2 mA|130 Ω|80%<br>max.||80%<br>max.|110%|0.6 to 0.9<br>(60 Hz)|0.2 to 0.5<br>(60 Hz)|
||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|6.9 mA|5,400 Ω||3.5 mA|3.4 mA|3,000 Ω|||||||
|DC|12 V|110 mA||110 Ω||50 mA||235 Ω|||||1.3 W|0.6 W|
||24 V|52 mA||470 Ω||25 mA||940 Ω|||||||
|**Note: 1.** For AC models, the rated current values are half-wave rectified current values measured with a DC ammeter.<br>**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<br>±15% for DC rated current, and +15% for DC coil resistance.<br>**3.** The AC coil resistance values are for reference only.<br>**4.** Performance characteristic data are measured at a coil temperature of 5°C to 35°C.<br>I**Contact Ratings**|||||||||||||||
|**Item**|||||**Resistive load (cos**φ**= 1)**|||||**Inductive load (cos**φ**= 0.4) (L/R = 7 ms)**|||||
|**Rated load**|||||3 A at 220 VAC, 3 A at 24 VDC|||||0.8 A at 220 VAC, 1.5 A at 24 VDC|||||
|**Rated carry current**|||||3 A||||||||||
|**Max. switching voltage**|||||250 VAC, 125 VDC||||||||||
|**Max. switching current**|||||3 A||||||||||
|**Max. switching power**|||||660 VA, 72 W|||||176 VA, 36 W|||||
|**Failure rate* (reference value)**|||||1 mA at 1 VDC||||||||||



***Note:** P level: λ60 = 0.1 x 10[-6] /operation 

## I **Characteristics** 

|I**Characteristics**||
|---|---|
|**Contact resistance**|50 mΩmax.|
|**Set time**|Time:<br>AC: 30 ms max.; DC: 15 ms max.|
||Min. pulse width:<br>AC: 60 ms.; DC: 15 ms.|
|**Reset time**|Time:<br>AC: 30 ms max.; DC: 15 ms max.|
||Min. pulse width:<br>AC: 60 ms.; DC: 15 ms.|
|**Max. operating frequency**|Mechanical: 18,000 operations/hr<br>Electrical:<br>1,800 operations/hr (under rated load)|
|**Insulation resistance**|100 MΩmin. (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<br>coils)|
|**Vibration resistance**|Destruction: 10 to 55 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)<br>Malfunction: 10 to 55 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)|
|**Shock resistance**|Destruction: 1,000 m/s2<br>Malfunction: 200 m/s2|
|**Endurance**|Mechanical: 100,000,000 operations min. (at 18,000 operations/hr)<br>Electrical:<br>200,000 operations min. (at 1,800 operations/hr)|
|**Ambient temperature**|Operating: –55°C to 60°C (with no icing)|
|**Ambient humidity**|Operating: 5% to 85%|
|**Weight**|Approx. 30g|



**Note:** The data shown above are initial values. 

> General-purpose Latching Relay **MYK** 

A-68 

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**En ineerin Data g g** 

## **Maximum Switched Power** 

## **Endurance** 

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## **Dimensions** 

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MY2K<br>**----- End of picture text -----**<br>


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2.6<br>Ten, 1.2-dia. holes x 2.2 elliptic holes<br>to 0.5 wy Deiestgy<br>28 max.<br>6.3<br>0.5<br>21.5 max.<br>36 max. 6.4<br>**----- End of picture text -----**<br>


**MY2K-02** 

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2.6 Mounting Holes<br>(Bottom View)<br>13.2<br>3.5 4.4<br>4.3<br>0.5 4.1<br>28 max. 12.65<br>6.35<br>6.3<br>- eOe;— 6.3 | LiFay 4<br>36 max. 4 3.75 Ten, 1.3-dia. holes<br>21.5 max.<br>Note:  Dimensional tolerances<br>are ±0.1 mm.<br>**----- End of picture text -----**<br>


> General-purpose Latching Relay **MYK** 

A-69 

## **Terminal Arrangement/Internal Connections (Bottom View)** 

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AC Model DC Model<br>R<br>**----- End of picture text -----**<br>


## **Use at 220 VAC** 

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. ~~Pe~~ 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** 

A-70