NON−POLAR ALUMINUM ELECTROLYTIC
NPR, NPA (Non−Polarized) SERIES
SUBMINIATURE N0N−POLARIZED
(NPR: Radial Leads, NPA: Axial Leads)
MECHANICAL SPECIFICATIONS
Lead Solderability:
The NPR and NPA Series subminiature aluminum electrolytic
capacitors are especially designed for use in circuits whose po-
larity is reversed or unknown or in crossover networks which do
not require tough characteristic requirements.
Meets the requirements of MIL−STD 202, Method 208
Marking:
Consists of series type, nominal capacitance, rated
voltage, temperature range, anode and/or cathode
identification, vendor identification.
RATINGS
Recommended Cleaning Solvents:
Capacitance Range: 0.47μf to 1000μf
Methanol, isopropanol ethanol, isobutanol, petroleum
ether, propanol and/or commercial detergents. Halo-
genated hydrocarbon cleaning agents such as Freon
(MF, TF, or TC), trichloroethylene, trichloroethane, or
methylchloride are not recommended as they may
damage the capacitor.
Tolerance: ±20%
Voltage Range: 16V to 100V
PERFORMANCE SPECIFICATIONS
Operating Temperature Range:
−40°C to +85°C (−40°F to +185°F)
CASE SIZES AND DIMENSIONS:
Leakage Current: I ≤ 0.002CV + 3μA (measured after
5 minutes of applied voltage)
I = Leakage Current (μA)
C = Nominal Capacitance (μf)
V = Rated Voltage (V)
NPR SERIES
Insulating
18.0 Min
Sleeve
Capacitance Tolerance (M): ±20%
measured at 20°C (68°F), 120Hz
A ±0.5
d Ø
Dissipation Factor: measured at +20°C (+68°F),120HZ
D Ø
L
Rated Voltage
16
25
50
63
100
L’
5.0 Min
D’ Ø
0.1μf to 1000μf
0.16
0.12
0.08
0.06
0.06
D’ Ø = D Ø + 0.5 Max
L’ = L + 1.0 Max at D Ø ≤ 8.0
L’ = L + 2.0 Max at D Ø ≥ 10.0
Impedance Ratio at Low Temperature: 120HZ
Comparison Z WV
16
25
1.5
2
50
1.5
2
63
100
2
Z @ −25°C (−13°F)/
Z @ +20°C (+68°F)
2
2
Z @ −40°C (−40°F)/
Z @ +20°C (+68°F)
NPA SERIES
3
4
4
Surge Voltage:
DC Rated Voltage
Surge Voltage
L
Insulating
Sleeve
16
20
25
32
50
63
63
79
100
125
d Ø
Load Life: 1000 ±12Hrs @ +85°C (+185°F),
2.3 Max
at rated voltage
D Ø
35.0 Min
L’
35.0 Min
D’ Ø
Leakage Current: Within values specified above
Dissipation Factor: Within ±150% of specified value
Capacitance Change Max: ±15% of initial value
D’ Ø = D Ø + 0.5 Max
L’ = L + 1.0 Max at D Ø ≤ 8.0
L’ = L + 2.0 Max at D Ø ≥ 10.0
Rated Voltage
160V to 450V
Capacitance Change Max
Within 30% of the initial value
Shelf Life: 1000 Hrs @ +85°C (+185°F),
no voltage applied
ORDERING INFORMATION
Leakage Current: Within values specified above
Dissipation Factor: Within ±150% of specified value
Capacitance Change Max: Within ±15% of initial value
NPR
47
M
50
Series
Capacitance
Tolerance
Voltage
NTE Electronics, Inc. D Voice (973) 748−5089 D FAX (973) 748−6224 D http://www.nteinc.com
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