Panasonic ST124F PCB Mount Relay 24V 1 NO / 1 NC ST124F Datenbogen

ST

4

ds_61A09_en_st: 070313D

(mm 

inch

)

UL/C-UL (Recognized)

CSA (Certified)

VDE (Certified)

TV rating (UL/CSA)

File No.

Contact rating

File No.

Contact rating

File No.

Contact rating

File No.

Rating

E43028

8A 250V AC

1

/

4

HP 125, 250V AC

5A 30V DC

LR26550 
etc.

8A 250V AC

1

/

4

HP 125, 250V AC

5A 30V DC

1017

8A 250V AC (cos

=1.0)

4A 250V AC (cos

=0.4)

5A 30V DC

UL: E43028
CSA: LR26550

—

External dimensions

General tolerance: 

0.5 

.020

31.0

11.0

7.62

7.62

10.16

10.16

14

0.3

3.5

.138

1.0

1.0

.039

.039

0.6 dia.

.024 dia.

0.3

.012

8

5

4

3

2

1

7

6

1.0

.039

0.5

.020

.300

.300

.400

1.220

.400

.551

.433

.012

PC board pattern (Bottom view)

Tolerance: 

0.1 

.004

2 coil latching
types only.

8-1.4 dia.

2.54

2.54

.100

.100

8-.055 dia.

Schematic (Bottom view)

  Single side stable / 1 coil latching

2 coil latching

1 Form A 1 Form B

2 Form A

1 Form A 1 Form B

2 Form A

1

4

5

6

7

8

-

+

1

4

5

6

7

8

-

+

1

2

5

6

7

8

- +

3

4

+ -

1

2

- +

3

4

+ -

5

6

7

8

(Deenergized condition)

(Reset condition)

1. PC board patterns for 2 coil latching 
types
When applying relays in power supply 
operation circuits for finished products 
regulated by the Electrical Appliance and 
Material Safety Law, use the pattern 
shown below.

2. Soldering should be done under the 
following conditions:
1) 
250

C 

482

F

 within 10s

300

C 

572

F

 within 5s

350

C 

662

F

 within 3s

2) For automatic cleaning, the boiling 
method is recommended. Avoid 
ultrasonic cleaning which subjects the 
relays to high frequency vibrations, which 
may cause the contacts to stick.
It is recommended that a fluorinated 
hydrocarbon or other alcoholic solvents 
be used.
3. When using, please be aware that 

1

Terminal No.

2

3

4