RN Relays

Pure DC current should be applied to the coil. If it includes ripple, the ripple factor should be less than 5%. However, check it with the actual circuit since the characteristics may be slightly different. The wave form of power should be rectangular. To ensure accurate operation, the voltage on both sides of the coil should be ±5% (at 20°C 68°F) of the nominal coil voltage. Also, please note that the pick-up and drop-out voltages (set and reset voltages) will change depending on operation temperature and conditions of use.

This relay is polarized relay, the coil voltage must be applied with correct polarity.

Since RN relays are highly sensitive polarized relays, their characteristics will be affected by a strong external magnetic field. Avoid using the relay under that condition.

This product is not sealed type, therefore washing is not allowed.

1) Temperature: –40 to +85°C –40 to +185°F
   (But allowable temperature is from –40 to +60°C –40 to +140°F at our standard packing condition.)

2) Humidity: 5 to 85% R.H. (Avoid freezing and condensation.)

The humidity range varies with the temperature. Use within the range indicated in the graph below.

3) Atmospheric pressure: 86 to 106 kPa

Temperature and humidity range for usage, transport, and storage

4.Condensation

5.Freezing

6.Low temperature, low humidity environments

7.Storage requirements

Please meet the following conditions if this relay is to be automatically soldered.

1) Position of measuring temperature

A: Surface of PC board where relay is mounted.

2) IR (infrared reflow) soldering method

T1 = 150 to 180°C 302 to 356°F T2 = 230°C 446°F and higher T3 = 250°C 482°F max. t1 = 60s to 120s t2 = within 30s

• Mounting cautions
Rise in relay temperature depends greatly on the component mix on a given PC board and the heating method of the reflow equipment. Therefore, please test beforehand using actual equipment to ensure that the temperature where the relay terminals are soldered and the temperature at the top of the relay case are within the conditions given above.

3) Please meet the following conditions if this relay is to be soldered by hand.

(1) Max. 260°C 500°F (solder temperature), within 10 seconds (soldering time)
(2) Max. 350°C 662°F (solder temperature), within 3 seconds (soldering time)
The effect on the relay depends on the actual PC board used. Please verify the PC board to be used.

1.Tape dimensions (General tolerance: ±0.1 ±.004)

2.Dimensions of plastic reel

After calibration, connect the D.U.T. board and measure.
However, connectors other than those for measurement should be connected with a 50Ω termination resistor.

Material: Glass PTFE (double-sided, through hole PC board)
R-4737 (manufactured by our company)
Board thickness: t = 0.8 mm .031 inch
Copper plating thickness: 18 μm
Connector (SMA type)
Product name: 01K1808-00 (Waka Manufacturing Co., Ltd.)
Insertion loss compensation: The insertion loss of relay itself is given by subtracting the insertion loss of calibration board.

• When used for AC load-operating and the operating phase is synchronous, rocking and fusing can easily occur due to contact shifting.
• When high-frequency opening and closing of the relay is performed with a load that causes arcs at the contacts, nitrogen and oxygen in the air is fused by the arc energy and HNO₃ is formed. This can corrode metal materials.