X7R Datasheet, PDF (18/19 Pages) EPCOS – Multilayer ceramic capacitor

Multilayer ceramic capacitors
X7R
X7R
Typical characteristics
Insulation resistance R_ins versus
temperature T
10 ⁸
MΩ
R _ins
KKE0190-M
10 ⁶
10 ⁵
10 ⁴
10 ³
Capacitance change ΔC/C₁ versus
time t
10
ΔC _%
C₁
0
KKE0191-V
_₅
_₁₀
_₁₅
10 ²
_₂₀
0 20 40 60 80 100 ˚C 140
10 ⁰
10 ¹
10 ²
h 10 ³
T
t
Further information
Please see General Technical Information at www.epcos.com/ceramic_capacitors or the data book
“Multilayer Ceramic Capacitors” for further information on:
■ Soldering directions
■ Taping and packing
■ Surface mounting instructions
■ Effects of mechanical stress
Cautions and warnings
■ Derating: A “state of the art” application design is essential to achieve failures rates at ppb level.
Do not use designs based on 100% of specified rated values.
■ AC applications may damage MLSC on a much lower level than DC voltage due to power dissi-
pation losses.
■ Mechanical stress - Please note EPCOS “General Technical Information”, “Surface mounting in-
structions” and information about the effect of mechanical stress.
■ ESD - EPCOS recommends the use of varistors.
■ Further processing - care must be taken using moulding processes.
■ Combined stresses - the total stress (e.g. DC voltage, AC ripple, pulses and temperature) has to
be taken into account to estimate reliability of MLSC.
Please read Cautions and warnings and
Important notes at the end of this document.
18 12/05