Panasonic is part of a large worldwide groupselling relays and associated switching products under different brand names in different territories.The conditions of use in some territories may differ from those customary in Europe. In particular there are often major differences in regard to national and international specifications, such as UL, CSA, VDE, SEV, EVE, SEMKO, etc. Thus, when considering contact loads as stated in this catalogue (e.g. 10 A, 30 VDC for the SP relay) its hould be understood that these values are not necessarily an absolute maximum but tested ratings. Mostly the stated value has been tested for a certain life expectancy as stated by the manufacturer or the respective test house. Thus, under different conditions, the stated “maximum” may, in practice, be safely exceeded.
3 ife
The minimum num ber tim the relay
can operated under nominal
conditions (coil voltage, temperature,
humidity, etc.W .
N :
1. This leak is
called isolation. Usually expressed in
“G”s.
ds_x61_en_relay_technical_information_090712D. The symbol (decibel)
is used express the magnitude the
leak signal.Definition Relay Terminology
MECHANICAL PERFORMANCE AND LIFE
1. Expressed an
acceleration G's displacement, and
frequency range.S.S.
L ife e
HIGH FREQUENCY CHARACTERISTICS
1.
3 .
5 y
This refers the maxim switching
frequency which satisfies the mechanical
life electrical life under repeated
operations applying pulse train at
the rated voltage the operating coil. The life (num ber of
operations) can estimated from the
switching voltage and switching current.W .
(usually ps)
2 tiv e
The acceleration which can withstood
by the relay during shipping installation
without suffering damage, and without
causing change its operating
characteristics. Except where otherwise specified, the
tests above are conducted under
standard tem perature and humidity
(15°C 35°C 59°F 95°F, to
75%). e
1 tio l
The acceleration which can tolerated
by the relay during service without
causing the closed contacts open for
more than the specified time.6A
The life expectancy 300,000
operations.) with load the
contacts. refers the ratio the
maximum value minimum value the
waveform.
2 tiv e
The vibration which can withstood by
the relay during shipping, installation or
use without suffering damage, and
without causing change its operating
characteristics.
V. usually becomes
greater than 1. However, this value for a
resistive load.R. The coil impressed voltage the
switching tests rectangular wave at
the rated voltage. The
sm aller the magnitude, the better the
relay.
3. The phase the load operation is
random. This expressed the
logarithm the magnitude ratio the
signal generated the leak with respect
to the input signal.
(Voltage Standing ave Ratio)
High frequency resonance generated
from the interference between the input
signal and reflected (wave) signal. However, test was
performed total six hours, two hours
each three-axis directions.
2 e
1) tio l
The vibration which can tolerated by
the relay during service, without causing
the closed contacts open for more than
the specified time.R. However, test was performed total
of times, six tim each three-axis
directions.
4 ife
The minimum num ber tim the relay
can operated under nominal
conditions with specific load being
switched the contacts. Loss due any
of these types disturbances called
insertion loss. The V. ife e
This listed the data column for each
type relay. when there
is reflected wave.
6.
2 tio s
At the high frequency region, signal
disturbance occurs from self-induction,
resistance, and dielectric loss well as
from reflection due impedance
mismatching circuits. Therefore, this refers the
magnitude loss the input signal. The larger the
magnitude, the better the isolation. sure carefully check
the actual load before use.
For example, for relay operating at:
Switching voltage 125V AC
Switching current 0.
2. tio n
High frequency signals leak through the
stray capacitance across contacts even if
the contacts are separated
