Equivalent & Substitute Parts for UVZ2A331MHD

Part Overview

The UVZ2A331MHD is a 330 µF, 100 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 2000 hours at 105°C and is classified as Not For New Designs. Due to its obsolescence status and limited design applicability, equivalent substitute parts with improved specifications or active product status are available to support ongoing production and maintenance requirements.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	100 V
Tolerance	±20%
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-55°C to 105°C
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.197" (5.00mm)
Diameter	0.492" (12.50mm)
Height	1.063" (27.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UVZ2A331MHD is determined by the following mandatory parameters:

Capacitance: 330 µF (exact match required) Voltage Rating: 100 V (exact match required) Tolerance: ±20% (exact match required) Polarization: Polar (exact match required) Package Type: Radial, Can (exact match required) Mounting Type: Through Hole (exact match required) Operating Temperature Range: -55°C to 105°C (exact match required)

Substitute parts are grouped into three categories based on physical dimensions and thermal performance:

Group 1: Same Footprint (5.00mm Lead Spacing, 12.50mm Diameter) Parts with identical lead spacing and diameter maintain direct PCB compatibility without layout modifications. UVY2A331MHD, 100PX330MEFC12.5X25, EKMQ101ETD331MK25S, and EKMQ101ELL331MK25S belong to this group.

Group 2: Larger Footprint (7.50mm Lead Spacing, 16.00mm–18.00mm Diameter) Parts with increased lead spacing and diameter require PCB layout verification but offer enhanced thermal performance and ripple current handling. UPJ2A331MHD, UPJ2A331MHD6, UPM2A331MHD6, UPS2A331MHD, and UPW2A331MHD belong to this group.

Group 3: Larger Footprint, Compact Height (7.50mm Lead Spacing, 18.00mm Diameter, 16.50mm Height) URZ2A331MHD provides a compact alternative with larger diameter but reduced height, suitable for space-constrained applications.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Diameter	Height	Product Status	RoHS
UVZ2A331MHD	Nichicon	UVZ	330 µF	100 V	±20%	2000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.063" (27.00mm)	Not For New Designs	ROHS3
UVY2A331MHD	Nichicon	UVY	330 µF	100 V	±20%	2000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.063" (27.00mm)	Not For New Designs	ROHS3
100PX330MEFC12.5X25	Rubycon	PX	330 µF	100 V	±20%	2000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.043" (26.50mm)	Active	ROHS3
EKMQ101ETD331MK25S	Chemi-Con	KMQ	330 µF	100 V	±20%	2000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.043" (26.50mm)	Active	ROHS3
EKMQ101ELL331MK25S	Chemi-Con	KMQ	330 µF	100 V	±20%	2000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	1.043" (26.50mm)	Active	ROHS3
UPJ2A331MHD	Nichicon	UPJ	330 µF	100 V	±20%	5000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.299" (33.00mm)	Not For New Designs	ROHS3
UPJ2A331MHD6	Nichicon	UPJ	330 µF	100 V	±20%	5000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.043" (26.50mm)	Not For New Designs	ROHS3
UPM2A331MHD6	Nichicon	UPM	330 µF	100 V	±20%	5000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.063" (27.00mm)	Not For New Designs	ROHS3
UPS2A331MHD	Nichicon	UPS	330 µF	100 V	±20%	3000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	Not For New Designs	ROHS3
UPW2A331MHD	Nichicon	UPW	330 µF	100 V	±20%	8000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	0.984" (25.00mm)	Not For New Designs	ROHS3
URZ2A331MHD	Nichicon	URZ	330 µF	100 V	±20%	1000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	0.650" (16.50mm)	Active	ROHS3

Engineering Selection Recommendations

For Direct PCB Replacement (Same Footprint)

100PX330MEFC12.5X25 (Rubycon) and EKMQ101ETD331MK25S (Chemi-Con) are recommended for direct substitution. Both maintain identical lead spacing (5.00mm) and diameter (12.50mm) as the UVZ2A331MHD, eliminating PCB layout modifications. Both parts carry Active product status and ROHS3 compliance. EKMQ101ETD331MK25S offers slightly reduced height (1.043" vs. 1.063"), providing marginal space savings.

For Extended Thermal Performance

UPW2A331MHD (Nichicon) provides 8000-hour lifetime at 105°C, the highest thermal rating among available substitutes. This part requires PCB layout verification due to increased lead spacing (7.50mm) and diameter (16.00mm). UPW2A331MHD is suitable for applications requiring extended operational life in elevated temperature environments.

For Automotive Applications

UPM2A331MHD6 (Nichicon) carries AEC-Q200 rating and is designated for automotive use. This part offers 5000-hour lifetime at 105°C with lead spacing of 7.50mm and diameter of 18.00mm. PCB layout verification is required.

For Active Product Status with Compact Form Factor

URZ2A331MHD (Nichicon) is the only substitute with Active product status and compact height (0.650", 16.50mm). This part is suitable for new designs and space-constrained applications. Lead spacing (7.50mm) and diameter (18.00mm) require PCB layout verification. URZ2A331MHD provides 1000-hour lifetime at 105°C.

All substitute parts maintain ROHS3 compliance and identical electrical specifications (330 µF, 100 V, ±20% tolerance, -55°C to 105°C operating range).

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different lead spacing on my existing PCB?

A: No. Lead spacing determines hole placement on the PCB. Parts with different lead spacing (5.00mm vs. 7.50mm) cannot be installed without PCB modification. Verify lead spacing compatibility before selection.

Q: What is the difference between parts with the same capacitance and voltage but different lifetime ratings?

A: Lifetime rating indicates the number of hours a capacitor maintains its electrical specifications at maximum rated temperature (105°C). Higher lifetime ratings reflect improved internal construction and materials. Selection depends on application requirements and expected operational duration at elevated temperatures.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the UVZ2A331MHD compliance status.

Q: Which substitute is best for new product designs?

A: URZ2A331MHD is the only substitute with Active product status, making it the appropriate choice for new designs. All other substitutes, including the original UVZ2A331MHD, are classified as Not For New Designs.

Q: Can I use a part with higher lifetime rating as a direct replacement?

A: Higher lifetime ratings are compatible from an electrical standpoint if all other parameters match (capacitance, voltage, tolerance, lead spacing, diameter). However, physical dimensions must be verified for PCB compatibility. Consult the Parameter Comparison table to confirm dimensional compatibility.

Q: What does "Active" product status mean?

A: Active status indicates the manufacturer continues production and supports the part for new designs. Not For New Designs status indicates the manufacturer has discontinued active support, though existing inventory may remain available.

Q: Are there any restrictions on using Chemi-Con or Rubycon parts as substitutes for Nichicon?

A: No electrical or compliance restrictions apply. All listed substitutes meet identical electrical specifications and ROHS3 compliance. Selection is based on availability, lead spacing compatibility, and application requirements.

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