VDE ST
1a1b/2a 8A polarized power
ST RELAYS
relays
2. High switching capability 6. Automatic cleaning possible
High contact pressure, low contact The sealed design means that these
bounce, and forced separation relays can undergo immersion in
structure that radically improves automatic washing systems and are
suitable for automatic soldering. Even
resistance to contact welding
in difcult environments, the contacts
(1 Form A 1 Form B type equivalent to
remain reliable.
TV-3). Strong against lamp inductive
7. Easy to design PC board patterns
loads, maximum switching capacity
Features 4/10 dual-in-line terminals.
has reached 3,040 VA (8A 380V AC).
Because the lead spacing has a pitch
3. High breakdown voltage Optimal
greater than 7.54 mm .297 inch,
for control in 250 V power circuits
designers can make easy adjustments
High breakdown voltage has been
RoHS compliant
with the width of the land size. This,
achieved. Between contacts and coil of
along with the large insulation
3,750 Vrms; Surge breakdown voltage
distance, simplies the drawing of PC
between coil and contact of 6,000 V,
board patterns.
and between open contacts of 1,200
8. To improve soldering efciency,
Vrms mean that these relays are
preapplication of solder to the
suitable even for 250 V power circuit
terminals is recommended.
control.
9. Sockets are available.
4. Improved stability
Conforms to all types of safety
FEATURES
standards.
1. Even with small form factor, Insulating distance of more than 3 mm
sensitive enough for direct IC- secured. Complies with Japan
driving Electrical Appliance and Material
The dimensions of this high-density 4- Safety Law requirements for operating
gap balanced armature are 31 mm 200 V power supply circuits, and
14 mm 11 mm 1.220 inch .551 inch conforms with UL, CSA and VDE
.433 inch. Despite this small size, standards.
high sensitivity is achieved by a 5. Latching types available
mechanism that incorporates high- In addition to single side stable types,
efciency polarized magnetic circuits convenient 2 coil latching types with
along with our exclusive spring memory functions are also available.
alignment method. With an minimum Moreover, we offer 2 Form A
operating power of about 150 mW, specications which, with double pole
nominal operating power of 240 mW, switching for applications such as 250
this relay can be directly driven by V power circuit switching, can enable
transistor or chip controllers. safer designs.
ORDERING INFORMATION
ST F
Contact arrangement
1: 1 Form A 1 Form B
2: 2 Form A
Operating function
Nil: Single side stable
L2: 2 coil latching
Nominal coil voltage
DC 3, 5, 6, 9, 12, 24, 48 V
Contact material
F: AgSnO2 type contact
Note: Certified by UL, CSA, VDE and SEV
ASCTB210E 201202-T
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/ST
TYPES
Single side stable 2 coil latching
Contact arrangement Nominal coil voltage
Part No. Part No.
3V DC ST1-DC3V-F ST1-L2-DC3V-F
5V DC ST1-DC5V-F ST1-L2-DC5V-F
6V DC ST1-DC6V-F ST1-L2-DC6V-F
1 Form A 1 Form B 9V DC ST1-DC9V-F ST1-L2-DC9V-F
12V DC ST1-DC12V-F ST1-L2-DC12V-F
24V DC ST1-DC24V-F ST1-L2-DC24V-F
48V DC ST1-DC48V-F ST1-L2-DC48V-F
3V DC ST2-DC3V-F ST2-L2-DC3V-F
5V DC ST2-DC5V-F ST2-L2-DC5V-F
6V DC ST2-DC6V-F ST2-L2-DC6V-F
2 Form A 9V DC ST2-DC9V-F ST2-L2-DC9V-F
12V DC ST2-DC12V-F ST2-L2-DC12V-F
24V DC ST2-DC24V-F ST2-L2-DC24V-F
48V DC ST2-DC48V-F ST2-L2-DC48V-F
Standard packing: Carton: 50 pcs.; Case: 500 pcs.
* For sockets, see page 113.
RATING
1. Coil data
1) Single side stable
Nominal operating
Nominal coil Pick-up voltage Drop-out voltage Coil resistance Nominal operating Max. applied voltage
current
voltage (at 20C 68F) (at 20C 68F) [10%] (at 20C 68F) power (at 20C 68F)
[10%] (at 20C 68F)
3V DC 75mA 38
5V DC 47mA 105
6V DC 40mA 150
80%V or less of 10%V or more of
150%V of
9V DC nominal voltage nominal voltage 25mA 360 240mW
nominal voltage
(Initial) (Initial)
12V DC 20mA 600
24V DC 10mA 2,400
48V DC 4.7mA 9,000
2) 2 coil latching
Nominal operating
Coil resistance Nominal operating
current
Nominal coil Set voltage Reset voltage Max. applied voltage
[10%] (at 20C 68F) power
[10%] (at 20C 68F)
voltage (at 20C 68F) (at 20C 68F) (at 20C 68F)
Set coil Reset coil Set coil Reset coil Set coil Reset coil
3V DC 75mA 75mA 40 40
5V DC 45mA 45mA 110 110
6V DC 37.5mA 37.5mA 155 155
80%V or less of 80%V or less of
150%V of
9V DC nominal voltage nominal voltage 25mA 25mA 360 360 240mW 240mW
nominal voltage
(Initial) (Initial)
12V DC 18.8mA 18.8mA 640 640
24V DC 10mA 10mA 2,400 2,400
48V DC 4.7mA 4.7mA 10,200 10,200
ASCTB210E 201202-T
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/