SFS6-PS datasheet(9/9 Pages) PANASONIC

9 / 9 page

SFS

ds_61410_en_sfs: 031213D

NOTES

For Cautions for Use, see Relay Technical Information.

1. Coil operating power

Pure DC current should be applied to

the coil. The wave form should be

rectangular. 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.

2. Coil connection

When connecting coils, refer to the

wiring diagram to prevent mis-

operation or malfunction.

3. Cleaning

This relay is not sealed, therefore,

immersion may cause failure. Be

careful that flux does not overflow

onto the PC board or penetrate inside

the relay.

4. Soldering

When using automatic soldering, the

following conditions are recommended

1) Preheating: 120

C 248F, within

120 s max (PC board solder surface).

2) Soldering: 260

C5C 500F41F,

within 6 s max.

5. Attach directly to the chassis or use

a DIN rail.

(1) When attaching directly to chassis

• Use a M3.5 screw, spring washer, and

hex nut.

• For the mounting pitch, refer to the

dimensions.

(2) When installing on a DIN rail

• Use a 35 mm 1.378 inch wide DIN rail

(DIN46277).

• Install and remove as shown in the figures

below.

2) Refer to the figure below for

applicable wire-pressed terminals.

(You cannot use round type wire-

pressed terminals.)

6. Other

1) If the relay has been dropped, the

appearance and characteristics

should always be checked before use.

2) The switching lifetime is defined

under the standard test condition

specified in the JIS* C 5442-1996

standard (temperature 15 to 35

C 59 to

F, humidity 25 to 75%). Check this

with the actual product as it is affected

by the coil driving circuit, load type,

activation frequency, activation phase,

ambient conditions and other factors.

Also, be especially careful with loads

such as those listed below.

(1) When used for AC load-operation

and the operating phase is

synchronous. Rocking and fusing can

easily occur due to contact shifting.

(2) During high frequency on/off

operation with certain loads, arcing

may occur at the contacts. This can

cause fusion to Oxygen and Nitrogen

gas in the air creating Nitric Acid

(HNO3) which can cause corrosion to

the contacts.

Please see the following

countermeasure examples:

1.Incorporate an arc-extinguishing

circuit.

2.Lower the operating frequency

3.Lower the ambient humidity

3) For secure operations, nominal coil

voltage should be applied. In addition,

please note that pick-up and drop-out

voltage will vary according to the

ambient temperature and operating

conditions.

4) Heat, smoke, and/or fire may occur

if the relay is used outside the

allowable ranges for the coil ratings,

contact ratings, operating cycle

lifetime, and other specifications.

Therefore, do not use the relay if these

ratings are exceeded. Also, make sure

that the relay is wired correctly.

5) Incorrect wiring may cause false

operation or generate heat or flames.

6) Check the ambient conditions when

storing or transporting the relays and

devices containing the relays.

Freezing or condensation may occur

in the relay causing damage. Avoid

exposing the relays to heavy loads, or

strong shock and vibration.

7. Usage, transport and storage

conditions

1) Ambient temperature, humidity, and

atmospheric pressure during usage,

transport, and storage of the relay:

(1) Temperature:

–40 to +85

C –40 to +185F

(When the temperature is 70 to 80

C,

reduce the 6 A max. switching current

by 0.1 A/

C.)

(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.

(3) Atmospheric pressure: 86 to 106

kPa

Temperature and humidity range for

usage, transport, and storage

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) At low temperature, low humidity

environments, the plastic becomes

brittle.

Please note corrections.

8. 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.

Pull

Screwdriver

DIN rail

Push

6.3 mm max.

3 mm min.

.248 inch max. .118 inch min.

Humidity, %R.H.

Temperature,

°C °F

Tolerance range

0+85

-40

(Avoid

condensation

when used at

temperatures

higher than 0

°C 32°F)

(Avoid freezing when

used at temperatures

lower than 0

°C 32°F)

+32

+185

-40

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