UPW2C101MHD Equivalent & Substitute Parts

Part Overview

The UPW2C101MHD is a 100 µF, 160 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 8000 hours at 105°C and is designed for general-purpose applications. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Capacitance	100 µF
Voltage Rating	160 V
Tolerance	±20%
Lifetime @ 105°C	8000 Hrs
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the UPW2C101MHD is determined by strict equivalence in the following parameters: capacitance (100 µF), voltage rating (160 V), tolerance (±20%), polarization (polar), and mounting type (through hole, radial can package). Parts are grouped into three categories based on product status and availability:

Recommended Substitutes (Active Status): Parts with active product status and equal or superior lifetime ratings provide direct replacement capability with ongoing manufacturer support.

Similar Substitutes (Active or Obsolete Status): Parts meeting all electrical specifications but with variations in physical dimensions, lead spacing, or lifetime ratings. These require mechanical verification for PCB compatibility.

Upgrade Options (Higher Voltage Rating): Parts with 250 V rating instead of 160 V, suitable for applications where voltage margin improvement is acceptable and physical constraints permit.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Lifetime @ 105°C	Status	Lead Spacing	Diameter	Height (Max)
UPW2C101MHD	Nichicon	UPW	100 µF	160 V	8000 Hrs	Obsolete	0.295" (7.50mm)	0.630" (16.00mm)	0.984" (25.00mm)
UCS2C101MHD6	Nichicon	UCS	100 µF	160 V	10000 Hrs	Active	0.295" (7.50mm)	0.630" (16.00mm)	0.846" (21.50mm)
UCY2C101MHD	Nichicon	UCY	100 µF	160 V	12000 Hrs	Active	0.197" (5.00mm)	0.492" (12.50mm)	0.846" (21.50mm)
UPJ2C101MHD	Nichicon	UPJ	100 µF	160 V	5000 Hrs	Obsolete	0.295" (7.50mm)	0.630" (16.00mm)	1.457" (37.00mm)
UPM2C101MHD	Nichicon	UPM	100 µF	160 V	5000 Hrs	Obsolete	0.295" (7.50mm)	0.630" (16.00mm)	1.476" (37.50mm)
UPS2C101MHD	Nichicon	UPS	100 µF	160 V	3000 Hrs	Obsolete	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)
URZ2C101MHD	Nichicon	URZ	100 µF	160 V	1000 Hrs	Active	0.295" (7.50mm)	0.709" (18.00mm)	0.846" (21.50mm)
URZ2C101MRD6	Nichicon	URZ	100 µF	160 V	1000 Hrs	Obsolete	0.394" (10.00mm)	0.787" (20.00mm)	0.591" (15.00mm)
UVZ2C101MHD	Nichicon	UVZ	100 µF	160 V	2000 Hrs	Not For New Designs	0.197" (5.00mm)	0.492" (12.50mm)	1.063" (27.00mm)
EKXG161ELL101MK25S	Chemi-Con	KXG	100 µF	160 V	10000 Hrs	Active	0.197" (5.00mm)	0.492" (12.50mm)	0.984" (25.00mm)
EKXG251ELL101ML25S	Chemi-Con	KXG	100 µF	250 V	10000 Hrs	Active	0.295" (7.50mm)	0.630" (16.00mm)	0.984" (25.00mm)

Engineering Selection Recommendations

Primary Recommendation: UCS2C101MHD6 is the preferred direct substitute. It maintains identical lead spacing (0.295" / 7.50mm), diameter (0.630" / 16.00mm), and voltage rating (160 V) as the UPW2C101MHD. The UCS2C101MHD6 offers superior lifetime (10000 hours versus 8000 hours at 105°C) and is in active production status with full manufacturer support. Height is reduced from 0.984" to 0.846", which is mechanically favorable for most PCB layouts.

Alternative with Compact Footprint: EKXG161ELL101MK25S (Chemi-Con) provides 100 µF at 160 V with 10000-hour lifetime and active status. This part uses reduced lead spacing (0.197" / 5.00mm) and smaller diameter (0.492" / 12.50mm), requiring PCB redesign but offering space optimization. Height matches the UPW2C101MHD at 0.984".

Higher Voltage Option: EKXG251ELL101ML25S (Chemi-Con) provides 100 µF at 250 V with 10000-hour lifetime. This part maintains the original lead spacing and diameter, making it a direct mechanical fit. The elevated voltage rating provides additional design margin for applications subject to voltage transients.

Lower Lifetime Alternatives: URZ2C101MHD (1000 hours) and UVZ2C101MHD (2000 hours) meet electrical specifications but with significantly reduced lifetime ratings. These are suitable only for applications with reduced thermal stress or shorter service life requirements.

Avoid: UPJ2C101MHD, UPM2C101MHD, and UPS2C101MHD are obsolete with lower lifetime ratings (3000-5000 hours) and increased physical height, offering no advantage over active alternatives.

Frequently Asked Questions (FAQ)

Q: Can UCS2C101MHD6 replace UPW2C101MHD without PCB modification?

A: Yes. Both parts share identical lead spacing (7.50mm) and diameter (16.00mm). The UCS2C101MHD6 is 0.138" shorter (0.846" versus 0.984"), which is mechanically compatible with existing PCB layouts designed for the taller UPW2C101MHD.

Q: What is the difference between Nichicon and Chemi-Con substitutes?

A: Both manufacturers produce equivalent 100 µF, 160 V aluminum electrolytic capacitors meeting the same electrical specifications and RoHS3 compliance. Selection depends on supply chain availability and design qualification requirements. Chemi-Con parts (EKXG series) offer compact footprints with reduced lead spacing.

Q: Is the EKXG251ELL101ML25S (250 V) suitable as a direct replacement?

A: Yes, mechanically and electrically. The 250 V rating provides additional voltage margin without changing physical dimensions or lead spacing. This substitution is appropriate for applications where voltage transient protection is beneficial. Verify that the circuit design does not depend on the 160 V rating for specific functional behavior.

Q: Why should I avoid URZ2C101MHD despite active status?

A: While URZ2C101MHD is in active production, its 1000-hour lifetime at 105°C is significantly lower than the original 8000-hour specification. This part is suitable only for applications with reduced thermal stress or temporary use. For standard general-purpose applications, UCS2C101MHD6 or UCY2C101MHD provide superior reliability.

Q: Can UCY2C101MHD be used as a direct replacement?

A: UCY2C101MHD meets all electrical specifications with superior 12000-hour lifetime. However, it uses reduced lead spacing (5.00mm versus 7.50mm) and smaller diameter (12.50mm versus 16.00mm), requiring PCB redesign. This part is suitable for new designs or when PCB layout modification is acceptable.

Q: What does "Not For New Designs" mean for UVZ2C101MHD?

A: This status indicates the manufacturer no longer recommends this part for new circuit designs. While existing inventory may be available, design qualification and long-term supply cannot be guaranteed. Use only for legacy product support or repair applications.

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