Panasonic IC Drivable PC Board User Manual
ST
IC DRIVABLE PC BOARD
RELAY FOR INDUCTIVE
LOAD SWITCHING
VDE
ST RELAYS
RoHS Directive compatibility information
http://www.mew.co.jp/ac/e/environment/
FEATURES
1. Even with small form factor,
sensitive enough for direct IC-driving
The dimensions of this high-density 4gap balanced armature are 31 mm × 14
mm × 11 mm 1.220 inch × .551 inch ×
.433 inch. Despite this small size, high
sensitivity is achieved by a mechanism
that incorporates high-efficiency
polarized magnetic circuits along with our
exclusive spring alignment method. With
an minimum operating power of about
150 mW, nominal operating power of 240
mW, this relay can be directly driven by
transistor or chip controllers.
2. High switching capability
High contact pressure, low contact
bounce, and forced separation structure
that radically improves resistance to
contact welding (1 Form A 1 Form B type
equivalent to TV-3). Strong against lamp
inductive loads, maximum switching
capacity has reached 3,040 VA (8A 380V
AC).
3. High breakdown voltage – Optimal
for control in 250 V power circuits
High breakdown voltage has been
achieved. Between contacts and coil of
3,750 Vrms; Surge breakdown voltage
between coil and contact of 6,000 V, and
between open contacts of 1,200 Vrms
mean that these relays are suitable even
for 250 V power circuit control.
4. Improved stability
Conforms to all types of safety
standards.
Insulating distance of more than 3 mm
secured. Complies with Japan Electrical
Appliance and Material Safety Law
requirements for operating 200 V power
supply circuits, and conforms with UL,
CSA and VDE standards.
5. Latching types available
In addition to single side stable types,
convenient 2 coil latching types with
memory functions are also available.
Moreover, we offer 2 Form A
specifications which, with double pole
switching for applications such as 250 V
power circuit switching, can enable safer
designs.
6. Automatic cleaning possible
The sealed design means that these
relays can undergo immersion in
automatic washing systems and are
suitable for automatic soldering. Even in
difficult environments, the contacts
remain reliable.
7. Easy to design PC board patterns
Features 4/10 dual-in-line terminals.
Because the lead spacing has a pitch
greater than 7.54 mm .297 inch,
designers can make easy adjustments
with the width of the land size. This, along
with the large insulation distance,
simplifies the drawing of PC board
patterns.
8. To improve soldering efficiency,
preapplication of solder to the
terminals is recommended.
About Cd-free contacts
We have introduced Cadmium free type
products to reduce Environmental
Hazardous Substances.
(The suffix “F” should be added to the
part number)
Please replace parts containing
Cadmium with Cadmium-free products
and evaluate them with your actual
application before use because the life of
a relay depends on the contact material
and load.
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
Coil voltage
DC 3, 5, 6, 9, 12, 24, 48 V
Contact material
F: AgSnO2 type contact
Note: UL/CSA, VDE, SEV type is standard.
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
TYPES
Contact arrangement Nominal coil voltage
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
2 Form A
Standard packing: Tube: 50 pcs.; Case: 500 pcs.
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
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
Single side stable 2 coil latching
Part No. Part No.
RATING
1. Coil data
1) Single side stable
Nominal coil
voltage
3V DC
5V DC 47mA 105Ω
6V DC 40mA 150Ω
9V DC 25mA 360Ω
12V DC 20mA 600Ω
24V DC 10mA 2,400Ω
48V DC 4.7mA 9,000Ω
Pick-up voltage
(at 20°C 68°F)
80%V or less of
nominal voltage
(Initial)
Drop-out voltage
(at 20°C 68°F)
10%V or more of
nominal voltage
(Initial)
2) 2 coil latching
Nominal coil
voltage
3V DC
5V DC 45mA 45mA 110Ω 110Ω
6V DC 37.5mA 37.5mA 155Ω 155Ω
9V DC 25mA 25mA 360Ω 360Ω
12V DC 18.8mA 18.8mA 640Ω 640Ω
24V DC 10mA 10mA 2,400Ω 2,400Ω
48V DC 4.7mA 4.7mA 10,200Ω 10,200Ω
Set voltage
(at 20°C 68°F)
80%V or less of
nominal voltage
(Initial)
Reset voltage
(at 20°C 68°F)
80%V or less of
nominal voltage
(Initial)
Nominal operating
current
[±10%] (at 20°C 68°F)
75mA 38Ω
Nominal operating
current
[±10%] (at 20°C 68°F)
Set coil Reset coil Set coil Reset coil Set coil Reset coil
75mA 75mA 40Ω 40Ω
Coil resistance
[±10%] (at 20°C 68°F)
Coil resistance
[±10%] (at 20°C 68°F)
Nominal operating
power
240mW
Nominal operating
power
240mW 240mW
ST
Max. allowable voltage
(at 20°C 68°F)
150%V of
nominal voltage
Max. allowable voltage
(at 20°C 68°F)
150%V of
nominal voltage
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
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