TAJA225M006RNJ AVX Corporation, TAJA225M006RNJ Datasheet - Page 10

• Manufacturer Part Number: TAJA225M006RNJ
• Description: CAP TANTALUM 2.2UF 6.3V 20% SMD
• Manufacturer: AVX Corporation
• Series: TAJr
• Type: Moldedr

Specifications of TAJA225M006RNJ

• Capacitance: 2.2µF
• Voltage - Rated: 6.3V
• Tolerance: ±20%
• Esr (equivalent Series Resistance): 9.000 Ohm
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 1206 (3216 Metric)
• Size / Dimension: 0.126" L x 0.063" W (3.20mm x 1.60mm)
• Height: 0.063" (1.60mm)
• Manufacturer Size Code: A
• Features: General Purpose
• Capacitance Tolerance: ± 20%
• Voltage Rating: 6.3VDC
• Capacitor Case Style: 1206
• No. Of Pins: 2
• Operating Temperature Range: -55°C To +125°C
• Capacitor Mounting: SMD
• Reel Quantity: 2000
• Rohs Compliant: Yes
• Dimensions: 1.6 mm W x 3.2 mm L
• Mfr Case Code: A Case
• Product: Tantalum Solid Standard Grade - Other Various
• Termination Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Spacing: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 478-3862-2; TAJA225M006R

Technical Summary and
Application Guidelines
It is important to ensure that the voltage across the terminals
of the capacitor never exceeds the specified surge voltage
rating.
Solid tantalum capacitors have a self healing ability provided
by the Manganese Dioxide semiconducting layer used as the
negative plate. However, this is limited in low impedance
applications.
In the case of low impedance circuits, the capacitor is likely
to be stressed by current surges. Derating the capacitor by
50% or more increases the reliability of the component. (See
Figure 2 page 45). The “AVX Recommended Derating Table”
(page 46) summarizes voltage rating for use on common
voltage rails, in low impedance applications.
In circuits which undergo rapid charge or discharge a pro-
tective resistor of 1 /V is recommended. If this is impossible,
a derating factor of up to 70% should be used.
In such situations a higher voltage may be needed than is
available as a single capacitor. A series combination should
be used to increase the working voltage of the equivalent
capacitor: For example two 22µF 25V parts in series is equiv-
alent to one 11µF 50V part. For further details refer to J.A.
Gill’s paper “Investigation into the effects of connecting
Tantalum capacitors in series”, available from AVX offices
worldwide.
NOTE:
While testing a circuit (e.g. at ICT or functional) it is likely that
the capacitors will be subjected to large voltage and current
transients, which will not be seen in normal use. These con-
ditions should be borne in mind when considering the
capacitor’s rated voltage for use. These can be controlled by
ensuring a correct test resistance is used.
1.2.5 Reverse voltage and Non-Polar operation.
The values quoted are the maximum levels of reverse voltage
which should appear on the capacitors at any time. These
limits are based on the assumption that the capacitors are
polarized in the correct direction for the majority of their
working life. They are intended to cover short term reversals
of polarity such as those occurring during switching tran-
sients of during a minor portion of an impressed waveform.
Continuous application of reverse voltage without normal
polarization will result in a degradation of leakage current. In
conditions under which continuous application of a reverse
voltage could occur two similar capacitors should be used in
a back-to-back configuration with the negative terminations
connected together. Under most conditions this combination
will have a capacitance one half of the nominal capacitance
of either capacitor. Under conditions of isolated pulses or
during the first few cycles, the capacitance may approach
the full nominal value.
The reverse voltage ratings are designed to cover exception-
al conditions of small level excursions into incorrect polarity.
The values quoted are not intended to cover continuous
reverse operation.
The peak reverse voltage applied to the capacitor must not
exceed:
38
1.2.6 Superimposed A.C. Voltage (Vr.m.s.) -
This is the maximum r.m.s. alternating voltage; superim-
posed on a d.c. voltage, that may be applied to a capacitor.
The sum of the d.c. voltage and peak value of the
super-imposed a.c. voltage must not exceed the category
voltage, Vc.
Full details are given in Section 2.
1.2.7 Forming voltage.
This is the voltage at which the anode oxide is formed. The
thickness of this oxide layer is proportional to the formation
voltage for a tantalum capacitor and is a factor in setting the
rated voltage.
1.3 DISSIPATION FACTOR AND
1.3.1 Dissipation factor (D.F.).
Dissipation factor is the measurement of the tangent of the
loss angle (tan ) expressed as a percentage. The measure-
ment of DF is carried out using a measuring bridge which
supplies a 0.5Vpk-pk 120Hz sinusoidal signal, free of har-
monics with a maximum bias of 2.2Vdc. The value of DF is
temperature and frequency dependent.
Note: For surface mounted products the maximum allowed
DF values are indicated in the ratings table and it is important
to note that these are the limits met by the component
AFTER soldering onto the substrate.
1% of the category d.c. working voltage to a maximum of
10% of the rated d.c. working voltage to a maximum of
3% of the rated d.c. working voltage to a maximum of
TANGENT OF LOSS ANGLE (TAN )
Ripple Voltage.
-10
10
-2
-4
-6
-8
4
8
6
2
0
LEAKAGE CURRENT vs. BIAS VOLTAGE
-20
0
TAJD336M006
TAJD476M010
0.1v at 125°C
1.0v at 25°C
0.5v at 85°C
20
Applied Voltage (Volts)
40
60
TAJC685M020
TAJD336M016
80
100