YC358TJK-074K7L Datasheet, PDF (9/16 Pages) List of Unclassifed Manufacturers – All thick film types of chip resistors have a rectangular ceramic body.

Chip Resistor Surface Mount ^{Thick film technology INTRODUCTION}
Product specification 9
16
PULSE-LOAD BEHAVIOUR
The load, due to a single pulse at
which chip resistors fail by going
open circuit, is determined by
shape and time. A standard way
to establish pulse load limits is
shown in Table 1.
With this test, it can be
determined at which applied
voltage the resistive value
changes about 0.5% of its nominal
value under the above mentioned
pulse conditions. Fig. 11 shows
test results for the size 1206 chip
resistors. If applied regularly the
load is destructive, therefore the
load must not be applied
regularly during the load life of
the resistors. However, the
magnitude of a pulse at which
failure occurs is of little practical
value.
The maximum ‘single-pulse’ load
Table 1 Pulse load limits
PARAMETER
VALUE
Exponential time constant _{50 to 700 µs}
Repetition time
12 to 25 s
Amount of pulses
5 to 10
that may be applied in a regular
way can be determined in a
similar manner.
Size 1206
10⁴
Vmax
(V)
10³
MBD641
1.2/50 μs
10/700 μs
10²
10
10
10 ²
10 ³
10 ⁴
10 ⁵
10 ⁶
R _n (Ω) ^{10 7}
Fig. 11 Maximum permissible peak pulse voltage ( Vˆ_max ) without failing to ‘open circuit’ in accordance with DIN IEC 60040 (CO) 533
Mar 25, 2008 V.7
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