UHV1E331MPD Equivalent & Substitute Parts

Part Overview

The UHV1E331MPD is a 330 µF, 25 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is rated for 6000 hours at 105°C and is classified as Not For New Designs. Due to this product status, equivalent and substitute parts from active manufacturers or higher-reliability series are necessary for new circuit designs and long-term availability assurance.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	25 V
Tolerance	±20%
Lifetime @ 105°C	6000 Hrs
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.138" (4.60mm)
Diameter	0.315" (8.00mm)
Height	0.512" (13.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: capacitance (330 µF), voltage rating (25 V), tolerance (±20%), polarization (polar), package type (radial can), mounting type (through hole), and lead spacing (0.138" / 4.60mm). Parts are grouped into three categories based on product status and operational characteristics:

Nichicon Series Equivalents (UHD1E331MPD, UHE1E331MPD, UHE1E331MPD6): Direct manufacturer alternatives with identical electrical specifications but varying lifetime ratings and physical heights. These maintain the same lead spacing and diameter as the main part.

Cross-Manufacturer Direct Substitutes (EKZM250ELL331MHB5D, EKYB250ELL331MHB5D): Parts from Chemi-Con and Rubycon with matching capacitance, voltage, tolerance, and package footprint. These are active products with extended lifetime ratings.

Upgraded Performance Alternatives (25YXJ330M8X11.5, 25ZLH330MEFC8X11.5, 25ZLJ330M8X11.5, ESL337M025AGMAA): Active-status components offering improved reliability through extended operational lifetime at 105°C and lower impedance characteristics, while maintaining identical electrical and mechanical compatibility.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ 105°C	Lead Spacing	Diameter	Height	Product Status	Impedance
UHV1E331MPD	Nichicon	330 µF	25 V	6000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Not For New Designs	59 mOhms
UHD1E331MPD	Nichicon	330 µF	25 V	3000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.650" (16.50mm)	Not For New Designs	56 mOhms
UHE1E331MPD	Nichicon	330 µF	25 V	7000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.591" (15.00mm)	Not For New Designs	87 mOhms
UHE1E331MPD6	Nichicon	330 µF	25 V	7000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.492" (12.50mm)	Not For New Designs	80 mOhms
UTT1E331MPD	Nichicon	330 µF	25 V	5000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.453" (11.50mm)	Obsolete	400 mOhms
EKZM250ELL331MHB5D	Chemi-Con	330 µF	25 V	8000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Active	56 mOhms
25YXJ330M8X11.5	Rubycon	330 µF	25 V	7000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Active	130 mOhms
25ZLH330MEFC8X11.5	Rubycon	330 µF	25 V	8000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Active	56 mOhms
25ZLJ330M8X11.5	Rubycon	330 µF	25 V	9000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Active	75 mOhms
EKYB250ELL331MHB5D	Chemi-Con	330 µF	25 V	7000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Active	87 mOhms
ESL337M025AGMAA	KEMET	330 µF	25 V	10000 Hrs	0.138" (4.60mm)	0.315" (8.00mm)	0.531" (14.60mm)	Active	61 mOhms

Engineering Selection Recommendations

For applications requiring immediate replacement with equivalent performance, UHE1E331MPD and EKZM250ELL331MHB5D provide direct functional equivalence with identical footprints and lead spacing. Both are ROHS3 compliant and maintain the 0.138" (4.60mm) lead spacing required for PCB compatibility.

For new designs, active-status components are preferred: 25ZLJ330M8X11.5 (Rubycon) offers the highest operational lifetime at 9000 hours with 75 mOhms impedance, while ESL337M025AGMAA (KEMET) provides 10000-hour lifetime with 61 mOhms impedance. Both maintain identical package dimensions and lead spacing.

UHE1E331MPD6 is not recommended for direct substitution due to different lead spacing (0.197" vs. 0.138") and larger diameter (0.394" vs. 0.315"), requiring PCB layout modification. UTT1E331MPD is obsolete and exhibits significantly higher impedance (400 mOhms), making it unsuitable for new applications.

All recommended substitutes are ROHS3 compliant and suitable for -40°C to 105°C operating environments.

Frequently Asked Questions (FAQ)

Q: Can UHE1E331MPD6 be used as a direct replacement for UHV1E331MPD?

A: No. While both are 330 µF, 25 V capacitors, UHE1E331MPD6 has different lead spacing (0.197" vs. 0.138") and larger physical dimensions (0.394" diameter vs. 0.315"). PCB layout modification is required.

Q: What is the primary difference between Nichicon UHV, UHD, and UHE series?

A: The series designation indicates operational lifetime at 105°C: UHV (6000 Hrs), UHD (3000 Hrs), and UHE (7000 Hrs). All maintain identical electrical specifications and package footprints for the standard versions.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and suitable for applications requiring environmental compliance.

Q: Which substitute offers the best long-term reliability?

A: ESL337M025AGMAA (KEMET) provides the highest operational lifetime at 10000 hours at 105°C with the lowest impedance (61 mOhms), while maintaining identical lead spacing and package compatibility.

Q: Can I use 25ZLJ330M8X11.5 in place of UHV1E331MPD without PCB modification?

A: Yes. The 25ZLJ330M8X11.5 maintains identical lead spacing (0.138" / 4.60mm), diameter (0.315" / 8.00mm), and height (0.512" / 13.00mm), allowing direct PCB substitution with improved 9000-hour lifetime performance.

Q: What does impedance variation mean for circuit performance?

A: Impedance affects high-frequency ripple current handling. Lower impedance (56-75 mOhms) indicates better performance at 100 kHz. The UHV1E331MPD at 59 mOhms is comparable to EKZM250ELL331MHB5D (56 mOhms) and 25ZLJ330M8X11.5 (75 mOhms).

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