RSD-12V Panasonic Electric Works, RSD-12V Datasheet - Page 7

• Manufacturer Part Number: RSD-12V
• Description: RELAY 12VDC MAGN SEALED PCB
• Manufacturer: Panasonic Electric Works
• Series: Rr

Specifications of RSD-12V

• Relay Type: General Purpose
• Circuit: SPDT (1 Form C)
• Contact Rating @ Voltage: 1A @ 30VDC
• Coil Type: Standard
• Coil Current: 13.5mA
• Coil Voltage: 12VDC
• Control On Voltage (max): 9.3 VDC
• Control Off Voltage (min): 1.2 VDC
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

B) No damage will occur to the coil of
either the one or two coil bistable types
even if the operating voltage is as much
as 2 or 3 times the nominal coil voltage.
Ripple factor
Coils should be operated on pure DC.
Rectified AC may cause changes in the
When designing R relay circuits
Care should be taken when designing
relay circuits since the response of the
relay is so fast that bouncing or
chattering from conventional relays in the
circuit may cause false operation.
When using long lead wires
When long wires (as long as 100 m or
more) are to be used, the use of
resistance (10 to 50 ) in series with the
contact is required in order to eliminate
the effect of the possible inrush current
due to the stray capacitance existing
between the two wires or between the
wire and ground.
AC operation of latching relays
When using circuits such as those at the
right, avoid continued or extended
latching or resetting power input.
Capacitor discharge operation of latching types
When operating bistable (latching) types
by discharge of a capacitor, more reliable
operation can be expected if the time to
reach pick-up voltage is greater than 2
ms at 5 to 10 F: (24 V type).
capacitor (ripple filter)
R
: relay
R
C) If separate pulses are applied to each
coil of the 2 coil bistable types, the first
pulse will operate when the pulses are of
equal voltage. When voltages differ the
higher voltage will cause operation
provided the voltage difference is greater
than the measured pick-up voltage.
Voltage difference on the coils will
reduce contact pressure proportionately.
pick-up/drop-out characteristics because
of the ripple factor. Use of a capacitor in
E min. E max. E mean
Latching
switch
(Equivalent circuit)
10 to 50
1 coil bistable type
C
Pulsating component
Contact of R relay
Reset
switch
DC component
R relay
coil
SW
(100 to 300 m)
Lead wire
(V)
more than 2 ms
To calculate the ripple factor
Ripple factor (%) =
E max. = max. value of pulsating component
E min. = min. value of pulsating component
E mean - average value DC component
Continuous bias voltage after an
operating pulse lowers contact pressure
and vibration resistance.
the circuit is recommended to keep the
ripple factor below 5%.
coil
coil
Specified
Pick -up voltage
+
Latching
switch
Energy accumulated in
static capacitance
2 coil bistable type
6
t
E max. – E min.
5
2
E mean
3
Reset
switch
bias voltage
100%
159
R