UES1C330MEM Equivalent & Substitute Parts

Part Overview

The UES1C330MEM is a 33 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 1000 hours at 85°C and is designed for audio applications. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and component procurement.

Key Parameters

Parameter	Value
Capacitance	33 µF
Voltage Rating	16 V
Tolerance	±20%
Polarization	Bi-Polar
Package Type	Radial, Can
Lead Spacing	0.098" (2.50 mm)
Size / Dimension	0.248" Dia (6.30 mm)
Height - Seated (Max)	0.492" (12.50 mm)
Mounting Type	Through Hole
Operating Temperature	-40°C ~ 85°C
Lifetime @ Temp.	1000 Hrs @ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the UES1C330MEM is determined by the following critical parameters: capacitance value (33 µF), tolerance (±20%), package type (radial, can), lead spacing (0.098" / 2.50 mm), physical dimensions (0.248" diameter, maximum height 0.492"), and through-hole mounting configuration. Voltage rating may be upgraded to a higher value without functional degradation, provided the physical footprint and lead spacing remain compatible with the original PCB layout.

The substitute parts listed maintain identical capacitance, tolerance, package geometry, and mounting characteristics. Voltage ratings are equal to or higher than the original 16 V specification. All substitutes are bi-polar aluminum electrolytic capacitors with compatible operating temperature ranges and through-hole radial configurations.

Parameter Comparison

Parameter	UES1C330MEM	UVP1E330MED	336BPS025M	50NXA33MEFC6.3X11
Manufacturer	Nichicon	Nichicon	Cornell Dubilier / Illinois Capacitor	Rubycon
Capacitance	33 µF	33 µF	33 µF	33 µF
Tolerance	±20%	±20%	±20%	±20%
Voltage - Rated	16 V	25 V	25 V	50 V
Polarization	Bi-Polar	Bi-Polar	Bi-Polar	Bi-Polar
Lead Spacing	0.098" (2.50 mm)	0.098" (2.50 mm)	0.098" (2.50 mm)	0.098" (2.50 mm)
Size / Dimension	0.248" Dia (6.30 mm)	0.248" Dia (6.30 mm)	0.248" Dia (6.30 mm)	0.248" Dia (6.30 mm)
Height - Seated (Max)	0.492" (12.50 mm)	0.492" (12.50 mm)	0.512" (13.00 mm)	0.492" (12.50 mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 105°C
Lifetime @ Temp.	1000 Hrs @ 85°C	2000 Hrs @ 85°C	2000 Hrs @ 85°C	1000 Hrs @ 105°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Obsolete	Active	Active

Engineering Selection Recommendations

UVP1E330MED (Nichicon) provides a direct upgrade path with identical physical dimensions and lead spacing. This part maintains manufacturer continuity while offering improved lifetime specifications (2000 hours at 85°C versus 1000 hours) and higher voltage rating (25 V). However, this part is also obsolete.

336BPS025M (Cornell Dubilier / Illinois Capacitor) is an active product with equivalent electrical and mechanical specifications. The maximum seated height is 0.512" (13.00 mm), which is 0.020" taller than the original specification. This part is suitable for applications where the additional height does not create PCB layout constraints. It provides 2000-hour lifetime at 85°C and is currently in active production.

50NXA33MEFC6.3X11 (Rubycon) is an active product offering the highest voltage rating (50 V) and extended operating temperature range (-55°C to 105°C). Physical dimensions and lead spacing are identical to the original part. This substitute provides the greatest design margin for voltage and temperature performance. All three substitutes maintain ROHS3 compliance and are suitable for through-hole PCB assembly.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage-rated capacitor as a substitute? A: Yes. A capacitor with a higher voltage rating than the original specification is electrically compatible and provides additional design margin. The UES1C330MEM operates at 16 V; substitutes rated at 25 V or 50 V are suitable for the same application circuit.

Q: Are the physical dimensions identical across all substitutes? A: The lead spacing (0.098" / 2.50 mm) and diameter (0.248" / 6.30 mm) are identical for all substitutes. The 336BPS025M has a maximum seated height of 0.512" (13.00 mm), which is 0.020" taller than the original 0.492" specification. Verify PCB clearance before selection.

Q: What is the difference between obsolete and active product status? A: Obsolete parts are no longer manufactured and have limited inventory availability. Active products are in current production with reliable supply chains. The 336BPS025M and 50NXA33MEFC6.3X11 are active products; UVP1E330MED is obsolete.

Q: Do all substitutes meet RoHS compliance? A: Yes. All listed substitutes are ROHS3 compliant and suitable for applications requiring environmental compliance certification.

Q: Which substitute offers the best long-term reliability? A: The 50NXA33MEFC6.3X11 provides the longest operating temperature range (-55°C to 105°C) and is rated for 1000 hours at 105°C. The 336BPS025M and UVP1E330MED both offer 2000-hour lifetime at 85°C, which exceeds the original 1000-hour specification.

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