Low Inductance Capacitors
with SnPb Terminations
LD16/LD17/LD18 Tin-Lead Termination “B”
GENERAL DESCRIPTION
The key physical characteristic determining equivalent series inductance
(ESL) of a capacitor is the size of the current loop it creates. The smaller
the current loop, the lower the ESL.
A standard surface mount MLCC is rectangular in shape with electrical
terminations on its shorter sides. A Low Inductance Chip Capacitor
(LICC) sometimes referred to as Reverse Geometry Capacitor (RGC) has
its terminations on the longer sides of its rectangular shape. The image
on the right shows the termination differences between an MLCC and an
LICC.
When the distance between terminations is reduced, the size of the current
loop is reduced. Since the size of the current loop is the primary driver of
inductance, an 0306 with a smaller current loop has significantly lower
ESL then an 0603. The reduction in ESL varies by EIA size, however, ESL
is typically reduced 60% or more with an LICC versus a standard MLCC.
AVX LICC products are available with a lead termination for high reliability
military and aerospace applications that must avoid tin whisker reliability
issues.
MLCC
LICC
PERFORMANCE CHARACTERISTICS
Capacitance Tolerances
Operation
Temperature Range
Temperature Coefficient
Voltage Ratings
Dissipation Factor
Insulation Resistance
(@+25°C, RVDC)
K = ±10%; M = ±20%
X7R = -55°C to +125°C
X5R = -55°C to +85°C
X7S = -55°C to +125°C
X7R, X5R = ±15%; X7S = ±22%
4, 6.3, 10, 16, 25 VDC
4V, 6.3V = 6.5% max; 10V = 5.0% max;
16V = 3.5% max; 25V = 3.0% max
100,000MΩ min, or 1,000MΩ per μF
min.,whichever is less
HOW TO ORDER
LD18
Size
LD16 = 0306
LD17 = 0508
LD18 = 0612
Z
Voltage
4 = 4V
6 = 6.3V
Z = 10V
Y = 16V
3 = 25V
5 = 50V
D
Dielectric
C = X7R
D = X5R
W = X6S
Z = X7S
105
Capacitance
Code (In pF)
2 Sig. Digits +
Number of Zeros
M
Capacitance
Tolerance
K = ±10%
M = ±20%
A
Failure Rate
A = N/A
B
Terminations
B = 5% min lead
2
Packaging
Available
2 = 7" Reel
4 = 13" Reel
A*
Thickness
Thickness
mm (in)
0.56 (0.022)
0.76 (0.030)
1.02 (0.040)
1.27 (0.050)
*See the thickness tables on the next page.
NOTE: Contact factory for availability of Termination and Tolerance Options for Specific Part Numbers.
TYPICAL IMPEDANCE CHARACTERISTICS
78
041416
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