
5-12
Recommended Pad Outline
Explanation of Terms
Rated DC Voltage (V
M(DC)
)
This is the maximum continuous DC voltage which may be
applied up to the maximum operating temperature of the
device. The rated DC operating voltage (working voltage) is
also used as the reference point for leakage current. This
voltage is always less than the breakdown voltage of the
device.
Rated AC Voltage (V
M(AC)RMS
)
This is the maximum continuous sinusoidal rms voltage
which may be applied. This voltage may be applied at any
temperature up to the maximum operating temperature of
the device.
Maximum Non-Repetitive Surge Current (I
TM
)
This is the maximum peak current which may be applied for
an 8/20
μ
s impulse, with rated line voltage also applied,
without causing device failure. The pulse can be applied to
the device in either polarity with the same confidence factor.
See Figure 2 for waveform description.
Maximum Non-Repetitive Surge Energy (W
TM
)
This is the maximum rated transient energy which may be
dissipated for a single current pulse at a specified impulse
duration (10/1000
μ
s), with the rated DC or RMS voltage
applied, without causing device failure.
Leakage (I
L
) at Rated DC Voltage
In the nonconducting mode, the device is at a very high
impedance (approaching 10
6
at its maximum rated
voltage) and appears essentially as an open circuit in the
system. The leakage current drawn at this level is very low,
as specified in the Device Ratings table.
Nominal Voltage (V
N(DC)
)
This is the voltage at which the device changes from the off
(standby state) to the on (clamping state) and enters its
conduction mode of operation. The voltage value is usually
characterized at the 1mA point and has a specified minimum
and maximum voltage range.
Clamping Voltage (V
C
)
This is the peak voltage appearing across the suppressor
when measured at conditions of specified pulse current and
specified waveform.
Capacitance (C)
This is the capacitance of the device at a specified frequency
(1MHz) and bias (1V
P-P
).
C
B
A
NOTE: Avoid metal runs in this area.
NOTE
SYMBOL
PAD SIZE
FOR 1210
SIZE DEVICE
FOR 1206
SIZE DEVICE
FOR 0805
SIZE DEVICE
FOR 0603
SIZE DEVICE
IN
MM
IN
MM
IN
MM
IN
MM
A
0.219
5.53
0.203
5.15
0.144
3.65
0.11
2.8
B
0.147
3.73
0.103
2.62
0.084
2.13
0.064
1.62
C
0.073
1.85
0.065
1.65
0.058
1.48
0.044
1.12
ML Series