UVZ2C331MHH Equivalent & Substitute Parts

Part Overview

The UVZ2C331MHH is a 330 µF, 160 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete and no longer recommended for new designs. Due to its discontinued status, equivalent and substitute parts from active product lines are necessary for ongoing maintenance, repair, and legacy system support. Substitute parts maintain the core electrical specifications while offering improved availability and compliance status.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	160 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar
Lead Spacing	0.295" (7.50 mm)
Package Type	Radial, Can
Mounting Type	Through Hole
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution logic is based on the following allowed parameters: capacitance (330 µF), tolerance (±20%), lead spacing (0.295" / 7.50 mm), package type (radial, can), mounting type (through hole), and operating temperature range (-40°C ~ 105°C). Substitute parts are grouped into three categories:

Direct Equivalents (160 V Rating): Parts maintaining the original 160 V voltage specification with identical electrical performance.

Voltage Upgrades (200 V and 250 V Ratings): Parts with higher voltage ratings that provide enhanced safety margins and are electrically compatible in 160 V applications. These parts maintain the same capacitance, tolerance, and physical dimensions while offering improved ripple current handling and extended lifetime ratings.

Cross-Manufacturer Alternatives: Parts from different manufacturers (Rubycon, Chemi-Con, Panasonic, Cornell Dubilier) that meet the same electrical and mechanical specifications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Height (Max)	Product Status	RoHS Status
UVZ2C331MHH	Nichicon	330 µF	160 V	±20%	2000 Hrs	0.295" (7.50 mm)	1.634" (41.50 mm)	Obsolete	Non-compliant
UVZ2C331MHD	Nichicon	330 µF	160 V	±20%	2000 Hrs	0.295" (7.50 mm)	1.634" (41.50 mm)	Not For New Designs	ROHS3 Compliant
UAS2D331MHD	Nichicon	330 µF	200 V	±20%	2000 Hrs	0.295" (7.50 mm)	1.654" (42.00 mm)	Active	ROHS3 Compliant
UCY2E331MHD9	Nichicon	330 µF	250 V	±20%	12000 Hrs	0.295" (7.50 mm)	1.634" (41.50 mm)	Active	ROHS3 Compliant
UVY2D331MHD	Nichicon	330 µF	200 V	±20%	2000 Hrs	0.295" (7.50 mm)	1.654" (42.00 mm)	Not For New Designs	ROHS3 Compliant
200PX330MEFC18X40	Rubycon	330 µF	200 V	±20%	2000 Hrs	0.295" (7.50 mm)	1.654" (42.00 mm)	Active	ROHS3 Compliant
EKMQ201ELL331MM40S	Chemi-Con	330 µF	200 V	±20%	2000 Hrs	0.295" (7.50 mm)	1.634" (41.50 mm)	Active	ROHS3 Compliant
EKXJ251ELL331MM40S	Chemi-Con	330 µF	250 V	±20%	12000 Hrs	0.295" (7.50 mm)	1.634" (41.50 mm)	Active	ROHS3 Compliant
ECA-2CHG331	Panasonic	330 µF	160 V	±20%	2000 Hrs	0.295" (7.50 mm)	1.319" (34.60 mm)	Obsolete	ROHS3 Compliant
SEK331M160ST	Cornell Dubilier	330 µF	160 V	±20%	2000 Hrs	0.295" (7.50 mm)	1.654" (42.00 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (160 V Specification): UVZ2C331MHD is the primary equivalent from Nichicon, offering identical electrical performance with ROHS3 compliance. SEK331M160ST from Cornell Dubilier provides an active alternative with equivalent specifications and is currently in production.

For Enhanced Reliability: UAS2D331MHD (Nichicon, 200 V) and EKMQ201ELL331MM40S (Chemi-Con, 200 V) offer voltage margin improvement while maintaining 2000 Hrs lifetime. These are suitable for applications where additional voltage headroom is beneficial.

For Extended Lifetime Applications: UCY2E331MHD9 (Nichicon, 250 V) and EKXJ251ELL331MM40S (Chemi-Con, 250 V) provide 12000 Hrs @ 105°C lifetime rating, representing a six-fold improvement over the original specification. These are recommended for critical applications requiring extended service life.

Cross-Manufacturer Options: 200PX330MEFC18X40 (Rubycon, 200 V) provides an alternative source for 200 V rated parts with active product status and ROHS3 compliance.

Compliance Consideration: All recommended substitutes are ROHS3 compliant, addressing the non-compliant status of the original UVZ2C331MHH.

Frequently Asked Questions (FAQ)

Q: Can UVZ2C331MHD be used as a direct replacement for UVZ2C331MHH? A: Yes. Both parts share identical electrical specifications: 330 µF capacitance, 160 V rating, ±20% tolerance, 2000 Hrs @ 105°C lifetime, and identical physical dimensions. UVZ2C331MHD offers improved RoHS compliance.

Q: What is the advantage of using a 200 V or 250 V rated substitute in a 160 V application? A: Higher voltage-rated capacitors provide increased safety margin and typically offer improved ripple current handling. For example, UAS2D331MHD (200 V) supports 910 mA ripple current at 120 Hz compared to 750 mA for the original part.

Q: Are there physical dimension differences between substitutes? A: Most substitutes maintain the same lead spacing (0.295" / 7.50 mm) and diameter (0.709" / 18.00 mm). Height varies slightly: most are 1.634" to 1.654" (41.50 to 42.00 mm), with ECA-2CHG331 at 1.319" (34.60 mm). Verify PCB clearance before selection.

Q: Which substitute offers the longest operational lifetime? A: UCY2E331MHD9 and EKXJ251ELL331MM40S both provide 12000 Hrs @ 105°C, compared to 2000 Hrs for the original part. Both are rated at 250 V.

Q: Are all substitutes through-hole mounted? A: Yes. All listed substitutes are through-hole radial, can package components compatible with the original mounting type.

Q: What is the difference between "Active" and "Not For New Designs" product status? A: Active parts are in current production with full manufacturer support. "Not For New Designs" indicates the part is available but not recommended for new circuit designs. For new applications, select from active status parts.

Q: Can I use cross-manufacturer parts (Rubycon, Chemi-Con, Panasonic, Cornell Dubilier)? A: Yes, provided electrical and mechanical specifications match. All listed cross-manufacturer alternatives meet the same capacitance, voltage, tolerance, and physical requirements. Verify with your design documentation and supplier availability.

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