Detailed Specifications For Series URZA
• Large Tubulars
• Radial Leads
• Low Impedance
• Long Life
+105°C Maximum Temperature

The URZA series capacitors are designed for high frequency applications, switching power supplies for example. These capacitors have a rated load life of 5,000 hours and an operating temperature of -55°C to +105°C for 6.3 to 100 volt products and -40°C to +105°C for 160 to 250 volts. The URZA series is also available in either a two, VH type, or three, VG type, radial lead configuration.

The URZA series capacitors are non-solvent proof and are not recommended when halogenated cleaning solvents are used. If solvent proof capacitors are required, this series is available with an optional epoxy end-seal which can withstand HCFC cleaning agents for five minutes by ultrasonic, vapor or immersion. Refer to the Mini-Glossary for recommended cleaning conditions.capacitors. Refer to the Mini-Glossary for recommended cleaning conditions.

Item Characteristics
Rated Voltage Range 6.3 to 100VDC 160 to 250VDC
Operating Temperature Range -55 to +105°C -40 to +105°C
Capacitance Range 120 to 33,000µF 56 to 820µF
Capacitance Tolerance -10% to +75% (U) at +20°C, 120Hz ±20% (M) at +20°C, 120Hz
Leakage Current I = 2(CV)1/2 (µA) after 5 minutes at +20°C. I = 0.02CV (µA) or 3µA, whichever is smaller, after 5 minutes at +20°C.
Where I = Leakage current (µA), C = Nominal capacitance (µF) and V = Rated voltage (V)
Equivalent Series Resistance (ESR) At +20°C, maximum ESR at 120Hz and 10kHz shall not exceed the values given in the Ratings Tables.
Temperature Characteristics At 120Hz, -55°C / +20°C for 6.3 to 10V:
Impedance ratio : 6 max.
Capacitance change : ±35%
ESR : <= 20 x initial specified value
Leakage current : < initial specified value

At 120Hz, -55°C / +20°C for 16 to 100V:
Impedance ratio : 3 max.
Capacitance change : ±20%
ESR : <= 10 x initial specified value
Leakage current : < initial specified value

At 120Hz, +105°C / +20°C for 6.3 to 100V:
Impedance ratio : 1 max.
Capacitance change : ±15%
ESR : < initial specified value
Leakage current : <= 5 x initial specified value

At 120Hz, -25°C / +20°C for 160 to 250V:
Impedance ratio : 4 max.
Capacitance change : ±30%
ESR : <= 10 x initial specified value
Leakage current : < initial specified value

At 120Hz, +105°C / +20°C for 160 to 250V:
Impedance ratio : 1 max.
Capacitance change : ±20%
ESR : < initial specified value
Leakage current : <= 10 x initial specified value

Ripple Current Multipliers

Refer to Section 4 of the Mini-Glossary for explanation of Ripple Current Multipliers.

Ambient Temperature (°C)
+65°C +85°C +105°C
1.36 1 0.35

Frequency (Hz)
DC Voltage 60Hz 120Hz 300Hz 1kHz 20kHz
6.3-16V 0.65 0.75 0.78 0.8 1
25-50V 0.45 0.6 0.7 0.75 1
63-100V 0.28 0.5 0.65 0.75 1

Ambient Temperature (°C)
+65°C +85°C +105°C
1.23 1 0.6

Frequency (Hz)
DC Voltage 60Hz 120Hz 300Hz 1kHz 20kHz
160-200V 0.75 1 1.2 1.3 1.5
250V 0.83 1 1.1 1.2 1.3

Load Life The following specifications shall be satisfied when the capacitors are restored to +20°C after subjecting them to the DC rated voltage for 5,000 hours at +105°C.

Capacitance change : <= ±20% of initial measured value
ESR : <= 300% of initial specified value
Impedance : <= 200% of initial specified value Leakage current : <= initial specified value

Shelf Life The following specifications shall be satisfied when the capacitors are restored to +20°C after exposing them for 1,000 hours at +105°C without voltage applied. The rated voltage shall be applied to the capacitors for a minimum of 30 minutes, at least 24 hours and not more than 48 hours before the measurements.

Capacitance change : <= ±20% of initial measured value
ESR : <= 200% of initial specified value
Impedance : <= 200% of initial specified value
Leakage current : <= 5 x initial specified value

Others Satisfies characteristic C of JIS C5141

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