Type ESRD Solid Polymer Aluminum SMT Capacitors
Filtering power of 3 or more tantalum chips and 50 year life
Solid Polymer Aluminum capacitors combine the high capacitance capability of an
electrolytic component with the high frequency performance of film capacitors. When
the need for low impedance at high frequency is critical for your design, one ESRD
chip is capable of replacing several liquid electrolyte aluminum or tantalum capacitors
connected in parallel. This is due to the ultra-low ESR which results in significantly
lower impedance than either aluminum or tantalum capacitors at frequencies of 100
kHz and above. There is no longer a need to stack capacitors to lower the impedance at
high frequency. The low ESR and high capacitance make them ideal for bypassing high
frequency noise, and for switching frequency filtering in DC/ DC conversion. ESRD
capacitors are packaged in a molded resin case with the same footprint (7.3 x 4.3 mm)
as the industry standard tantalum “D” and “E” case sizes. The solid electrolyte results
in a capacitor with stable impedance and equivalent series resistance over the entire
operating temperature range and they have more than twice the ripple current handling
capability of tantalum capacitors. In addition, the solid electrolyte delivers a typical
expected operating life of more than 50 years, and it is ignition free.
Applications
Motherboard By-Pass
Switching Supply Input/Output Filters
Power Supply Decoupling
High Frequency Noise Reduction
Laptop LCD Displays
Automotive Digital Equipment
Portable Electronic Equipment
Markings
Polarity Stripe (Anode)
Capacitance
(“R” = Decimal Point)
+
W.V. Code
D = 2.0 V K = 8.0 V
E = 2.5 V
G = 4.0 V C = 16.0 V
J = 6.3 V
B = 12.5 V
Lot Code
Ordering Information
ESRD
4R7
M
16
R
Packaging Code
R = Tape & Reel
ESRD (1.8 mm Ht.): 3500 pcs/reel
ESRD (2.8 mm Ht.): 2000 pcs/reel
CDE
Type
Capacitance
Code
Capacitance
Tolerance
M = ± 20%
4R7 = 4.7 µF
220 = 22 µF
101 = 100 µF
WVDC Code
02 = 2.0 Vdc 08 = 8.0 Vdc
0E = 2.5 Vdc 12 = 12.5 Vdc
04 = 4.0 Vdc 16 = 16.0 Vdc
06 = 6.3 Vdc
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