UKA1A102MPD Equivalent & Substitute Parts

Part Overview

The UKA1A102MPD is a 1000 µF, 10 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is rated for 2000 hours at 105°C and is designated as "Not For New Designs," indicating it has been superseded in Nichicon's product line. Finding equivalent or substitute parts is necessary for maintenance applications, legacy system repairs, and designs requiring compatible alternatives with matching or improved electrical characteristics.

Key Parameters

Parameter	Value
Capacitance	1000 µF
Voltage Rating	10 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Diameter	0.394" (10.00 mm)
Height	0.689" (17.50 mm)
Mounting Type	Through Hole
Operating Temperature	-55°C to 105°C
Lifetime @ 105°C	2000 Hours
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the UKA1A102MPD is determined by the following criteria:

Primary Compatibility Requirements:

Capacitance: 1000 µF (exact match required)
Voltage Rating: 10 V minimum (equal or higher voltage rating acceptable)
Package: Radial, Can configuration
Lead Spacing: 0.197" (5.00 mm)
Physical Dimensions: 0.394" diameter, height ≤ 0.709"
Mounting: Through Hole
Polarization: Polar

Secondary Considerations:

Operating temperature range: -55°C to 105°C minimum
RoHS3 compliance preferred for regulatory alignment
Lifetime rating: 2000 hours or greater at 105°C

Substitutes are grouped into three categories: direct voltage equivalents (10 V), voltage upgrades (16 V and 25 V), and alternative manufacturers meeting identical mechanical and electrical specifications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Height (Max)	Product Status	RoHS3
UKA1A102MPD	Nichicon	1000 µF	10 V	±20%	2000 Hrs	0.197"	0.689"	Not For New Designs	Yes
UKA1C102MPD	Nichicon	1000 µF	16 V	±20%	2000 Hrs	0.197"	0.689"	Not For New Designs	Yes
UPA1A102MPD3	Nichicon	1000 µF	10 V	±20%	4000 Hrs	0.197"	0.689"	Active	Yes
UPA1C102MPD	Nichicon	1000 µF	16 V	±20%	4000 Hrs	0.197"	0.689"	Active	Yes
UPS1A102MPD	Nichicon	1000 µF	10 V	±20%	2000 Hrs	0.197"	0.689"	Not For New Designs	Yes
108KXM010MLQ	Cornell Dubilier / Illinois Capacitor	1000 µF	10 V	±20%	4000 Hrs	0.197"	0.689"	Active	Yes
108RZM010M	Cornell Dubilier / Illinois Capacitor	1000 µF	10 V	±20%	3000 Hrs	0.197"	0.709"	Active	Yes
25PX1000MEFC10X16	Rubycon	1000 µF	25 V	±20%	2000 Hrs	0.197"	0.689"	Active	Yes
B41858C3108M000	EPCOS - TDK Electronics	1000 µF	10 V	±20%	5000 Hrs	0.197"	0.669"	Active	Yes
B41888C3108M	EPCOS - TDK Electronics	1000 µF	10 V	±20%	7000 Hrs	0.197"	0.669"	Active	Yes
ECA-1CHG102	Panasonic Electronic Components	1000 µF	16 V	±20%	2000 Hrs	0.197"	0.669"	Active	Yes

Engineering Selection Recommendations

Direct Voltage Equivalents (10 V):

UPA1A102MPD3 and 108KXM010MLQ are preferred direct replacements for the UKA1A102MPD. Both maintain 10 V rating, 1000 µF capacitance, and identical mechanical dimensions. UPA1A102MPD3 offers extended 4000-hour lifetime at 105°C with Active product status. 108KXM010MLQ provides equivalent 4000-hour lifetime with Active status and lower ESR characteristics. B41888C3108M delivers the highest reliability with 7000-hour lifetime and AEC-Q200 automotive qualification, suitable for demanding applications.

Voltage Upgrade Options (16 V and 25 V):

UKA1C102MPD and UPA1C102MPD provide 16 V rating in the same package footprint. UPA1C102MPD is preferred due to Active product status and 4000-hour lifetime. ECA-1CHG102 (Panasonic) offers equivalent 16 V performance with Active status. 25PX1000MEFC10X16 (Rubycon) provides 25 V rating for applications requiring higher voltage margin, maintaining identical mechanical compatibility.

Product Status Consideration:

UPA1A102MPD3, UPA1C102MPD, 108KXM010MLQ, 108RZM010M, B41858C3108M000, B41888C3108M, 25PX1000MEFC10X16, and ECA-1CHG102 all carry Active product status, ensuring continued availability and manufacturing support. UKA1C102MPD and UPS1A102MPD are "Not For New Designs" and should be avoided for new applications.

Frequently Asked Questions (FAQ)

Q: Can I use a 16 V capacitor in place of a 10 V capacitor?

A: Yes. A higher voltage rating capacitor is electrically compatible with lower voltage applications. The 16 V substitutes (UKA1C102MPD, UPA1C102MPD, ECA-1CHG102) maintain identical capacitance, tolerance, and mechanical dimensions while providing additional voltage margin. This is a standard engineering practice for improved reliability.

Q: What is the difference between Nichicon UKA and UPA series?

A: Both series provide 1000 µF capacitance in identical packages. The UPA series offers extended lifetime (4000 hours at 105°C versus 2000 hours) and carries Active product status. UPA1A102MPD3 is the recommended upgrade path from UKA1A102MPD for new designs and maintenance applications requiring longer service life.

Q: Are all substitutes mechanically interchangeable?

A: Yes, all listed substitutes maintain the same lead spacing (0.197"), diameter (0.394"), and maximum heights within 0.020" tolerance. Physical board layout compatibility is assured. Verify PCB hole spacing matches 5.00 mm before installation.

Q: Which substitute offers the lowest ESR?

A: B41888C3108M provides the lowest ESR at 64 mOhm @ 10 kHz, followed by B41858C3108M000 at 118 mOhm @ 10 kHz. Lower ESR reduces ripple current heating and improves high-frequency performance. These EPCOS/TDK parts are suitable for applications requiring superior transient response.

Q: Is RoHS3 compliance required?

A: All listed substitutes are ROHS3 compliant, matching the original UKA1A102MPD specification. This ensures regulatory alignment for EU and global markets.

Q: Can I substitute with a different capacitance value?

A: No. Capacitance value is the primary electrical parameter and cannot be changed. Only parts rated at 1000 µF are acceptable substitutes. Deviating from this specification will alter circuit performance and may cause system malfunction.

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