ESR
“U” range of Ultra-low ESR Capacitors
Ultra-low ESR “U” Range
Electrical Details
The Ultra-low ESR “U” range offers a very stable, High
Q material system that provides excellent low loss
performance in systems below 3GHz.
Capacitance Range
Optimised for lowest possible ESR, this range of high
frequency capacitors is suitable for many applications
where economical, high performance is required.
Q factor
>2000 @ 1MHz
Insulation Resistance (IR)
100G or 1000secs (whichever is less)
Dielectric Withstand Voltage (DWV)
Voltage applied for 5 seconds maximum at
50mA maximum charging current
Cases sizes 0603, 0805 and 1111 are offered with a
standard operating temperature range of -55ºC to
+125ºC. 1111 parts are also available with an extended
temperature range of -55ºC to +175ºC, by adding
suffix H17.
0.2pF to 2.2nF
Temperature Coefficient of Capacitance (TCC) 0 ± 30ppm/˚C (C0G)
-55ºC / +125ºC (non-suffixed parts)
Operating temperature range
-55ºC / +175ºC (H17 suffixed parts)
Ageing Rate
Zero
Size
Length mm
(L1)
Width mm
(W)
Thickness mm
(T)
Band mm
(L2)
0603
1.6 ± 0.2
0.8 ± 0.2
0.8 Max
0.20 – 0.40
0805
2.0 ± 0.3
1.25 ± 0.2
1.3 Max
0.25 – 0.75
1111
2.79 +0.51/-0.25
2.79 ± 0.38
2.0±0.2*
0.13 – 0.63
* 1111 capacitance values < 2.2pF, maximum thickness 1.78mm
Ordering Information – Ultra-low ESR “U” Range
0805
J
Chip Size
Termination
0603
J = Nickel barrier,
100% tin plating
(RoHS compliant)
0805
1111
A = Nickel barrier,
tin/lead plating
(Min 10% lead, non
RoHS)
6 = Nickel Barrier,
tin/lead plating
(5-20% lead, non
RoHS)
250
Voltage d.c.
(marking code)
0101
Capacitance in Pico
farads (pF)
J
Capacitance
Tolerance
100 = 100V
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