NOTES

1. For cautions for use, please read

“General Application Guidelines” on

page B-1.

2. Coil applied voltage

To ensure proper operation, the voltage

applied to both terminals of the coil

should be ±5% (at 20°C 68°F) the rated

operating voltage of the coil.

Also, be aware that the pick-up and dropout voltages will fluctuate depending on

the ambient temperature and operating

conditions.

3. LED indications

The light of the light emitting diode is

what displays operation. If voltage

remains after relay dropout, the LED

might illuminate briefly.

4. Switching lifetime

The switching lifetime is defined under

the standard test condition specified in

the JIS C 5442(*2) standard (temperature

15 to 35°C 59 to 95°F, humidity 25 to

75% R.H.). Check this with the real

device as it is affected by coil driving

circuit, load type, activation frequency,

activation phase,ambient conditions and

other factors.

Also, be especially careful of loads such

as those listed below.

1) When used for AC load-operating and

the operating phase is synchronous.

Rocking and fusing can easily occur due

to contact shifting.

2) High-frequency load-operating

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.

Three countermeasures for these are

listed here.

(1) Incorporate an arc-extinguishing

circuit.

(2) Lower the operating frequency

(3) Lower the ambient humidity

5. Direct mount type (TM type)

If the current to the connection terminal

will exceed 10 A, we recommend

connecting with solder. If you are going to

use a tab terminal when the current will

exceed 10 A, make sure to verify the

temperature rise on the receptacle side

under actual conditions before using.

Please be careful, because excessive

stress on the TM terminal can cause

fluctuations in characteristics and

damage.

6. Conditions for operation, transport

and storage

1) Ambient temperature, humidity, and

atmospheric pressure during usage,

transport, and storage of the relay:

(1) Temperature:

–40 to +70°C – 40 to +158°F

(2) Humidity: 5 to 85% RH

(Avoid freezing and condensation.)

The humidity range varies with the

temperature. Use within the range

indicated in the graph below.

Temperature and humidity range for

usage, transport, and storage

(3) Atmospheric pressure: 86 to 106 kPa

2) Condensation

Condensation forms when there is a

sudden change in temperature under

high temperature and high humidity

conditions. Condensation will cause

deterioration of the relay insulation.

3) Freezing

Condensation or other moisture may

freeze on the relay when the

temperatures is lower than 0°C 32°F. This

causes problems such as sticking of

movable parts or operational time lags.

4) Low temperature, low humidity

environments

The plastic becomes brittle if the relay is

exposed to a low temperature, low

humidity environment for long periods of

time.

7. Diode characteristics

1) Reverse breakdown voltage:

Min. 1,000V (with diode type)

Min. 400V (with diode and LED indication

type)

8. Diode type

Since the diode inside the relay coil are

designed to absorb the counter emf, the

element may be damaged if a large

surge, etc., is applied to the diode.

If there is the possibility of a large surge

voltage from the outside, please

implement measures to absorb it.

9. Please connect DC coil types with

LED and built-in diode correctly by

verifying the coil polarity (“+” and “–

”). Connecting with reverse polarity

will cause the LED not to light and

damage the built-in diode due to its

specification.

10. Installation

If you will be installing adjacent to other

relays, please keep a distance of at least 5mm from the Relay