UPM2A331MHD Equivalent & Substitute Parts

Part Overview

The UPM2A331MHD is a 330 µF, 100 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 5000 hours at 105°C and carries AEC-Q200 automotive qualification. The product status is "Not For New Designs," making identification of equivalent alternatives essential for ongoing maintenance, repair, and legacy system support where this capacitor remains in active use.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	100 V
Tolerance	±20%
Lifetime @ Temperature	5000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.295" (7.50mm)
Impedance	62 mOhms
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UPM2A331MHD is determined by strict alignment of the following parameters:

Core Electrical Requirements:

Capacitance: 330 µF (exact match required)
Voltage Rating: 100 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)

Core Mechanical Requirements:

Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.295" (7.50mm) (exact match required)

Performance Considerations:

Operating Temperature Range: -55°C ~ 105°C (exact match required)
Lifetime @ 105°C: Minimum 5000 hours (equal or greater acceptable)
Impedance: 62 mOhms baseline (variations within acceptable range for equivalent function)

Compliance & Certification:

RoHS3 Compliance: Required
AEC-Q200 Automotive Rating: Preferred for automotive applications; general-purpose alternatives acceptable for non-automotive use cases

Substitute parts are grouped into two categories: Direct equivalents (identical electrical and mechanical specifications) and Similar alternatives (matching core parameters with acceptable variations in physical dimensions or performance characteristics that do not affect circuit compatibility).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Impedance	Size Dia	Height (Max)	AEC-Q200	Product Status
UPM2A331MHD	Nichicon	330 µF	100 V	±20%	5000 Hrs	62 mOhms	0.630" (16.00mm)	1.319" (34.60mm)	Yes	Not For New Designs
UPJ2A331MHD	Nichicon	330 µF	100 V	±20%	5000 Hrs	62 mOhms	0.630" (16.00mm)	1.299" (33.00mm)	No	Not For New Designs
UPJ2A331MHD6	Nichicon	330 µF	100 V	±20%	5000 Hrs	70 mOhms	0.709" (18.00mm)	1.043" (26.50mm)	No	Not For New Designs
UPM2A331MHD6	Nichicon	330 µF	100 V	±20%	5000 Hrs	70 mOhms	0.709" (18.00mm)	1.063" (27.00mm)	Yes	Not For New Designs
UPS2A331MHD	Nichicon	330 µF	100 V	±20%	3000 Hrs	90 mOhms	0.630" (16.00mm)	1.063" (27.00mm)	No	Not For New Designs
UPW2A331MHD	Nichicon	330 µF	100 V	±20%	8000 Hrs	90 mOhms	0.630" (16.00mm)	0.984" (25.00mm)	No	Not For New Designs
B41858C9337M000	EPCOS - TDK Electronics	330 µF	100 V	±20%	5000 Hrs	90 mOhms	0.630" (16.00mm)	1.319" (34.60mm)	No	Active
MAL213639331E3	Vishay Beyschlag/Draloric/BC Components	330 µF	100 V	±20%	10000 Hrs	58 mOhms	0.630" (16.00mm)	1.319" (34.60mm)	No	Active
MAL213659331E3	Vishay Beyschlag/Draloric/BC Components	330 µF	100 V	±20%	10000 Hrs	58 mOhms	0.630" (16.00mm)	1.319" (34.60mm)	No	Active
MAL213669331E3	Vishay Beyschlag/Draloric/BC Components	330 µF	100 V	±20%	10000 Hrs	58 mOhms	0.630" (16.00mm)	1.319" (34.60mm)	No	Active
EEU-FC2A331	Panasonic Electronic Components	330 µF	100 V	±20%	5000 Hrs	62 mOhms	0.630" (16.00mm)	1.240" (31.50mm)	Yes	Active

Engineering Selection Recommendations

Direct Equivalent (Preferred for Automotive Applications): EEU-FC2A331 (Panasonic Electronic Components) is the primary direct equivalent. It matches all core electrical parameters (330 µF, 100 V, ±20% tolerance, 5000 Hrs @ 105°C), maintains identical lead spacing and package type, carries AEC-Q200 automotive qualification, and holds Active product status. Physical height variation (1.240" vs. 1.319") is within acceptable tolerance for through-hole mounting. Impedance specification (62 mOhms) is identical.

Alternative for Automotive Applications: UPM2A331MHD6 (Nichicon) provides AEC-Q200 certification and maintains the same electrical specifications. Physical dimensions differ (0.709" diameter, 1.063" height), requiring PCB layout verification. Impedance increases to 70 mOhms. This option is suitable where form factor adjustment is feasible.

General-Purpose Alternatives with Extended Lifetime: MAL213639331E3, MAL213659331E3, and MAL213669331E3 (Vishay Beyschlag/Draloric/BC Components) offer 10000-hour lifetime at 105°C, superior to the 5000-hour specification of the original part. All three maintain identical electrical parameters and physical dimensions. Impedance is lower (58 mOhms). These parts are Active status and suitable for non-automotive applications or where extended operational life is beneficial.

General-Purpose Alternatives with Enhanced Lifetime: UPW2A331MHD (Nichicon) provides 8000-hour lifetime at 105°C with identical electrical specifications. Physical height is reduced (0.984" vs. 1.319"), and impedance increases to 90 mOhms. This option is suitable for space-constrained applications.

Not Recommended: UPS2A331MHD exhibits reduced lifetime (3000 Hrs @ 105°C) compared to the original specification (5000 Hrs @ 105°C) and higher impedance (90 mOhms). This part is suitable only where reduced operational life is acceptable.

B41858C9337M000 (EPCOS - TDK Electronics) matches physical dimensions and lifetime but lacks AEC-Q200 certification and carries higher impedance (90 mOhms). Suitable for general-purpose applications only.

Frequently Asked Questions (FAQ)

Q: Can I use EEU-FC2A331 as a direct replacement for UPM2A331MHD in automotive applications? A: Yes. EEU-FC2A331 meets all electrical requirements (330 µF, 100 V, ±20%, 5000 Hrs @ 105°C), maintains identical lead spacing (7.50mm), carries AEC-Q200 certification, and is Active status. The 0.079" height difference (1.240" vs. 1.319") is within acceptable tolerance for through-hole PCB mounting.

Q: What is the difference between UPJ2A331MHD and UPM2A331MHD? A: Both are 330 µF, 100 V capacitors with 5000-hour lifetime. UPM2A331MHD carries AEC-Q200 automotive certification and is rated for automotive applications. UPJ2A331MHD lacks this certification and is rated for general-purpose use. Physical dimensions are nearly identical (height difference of 0.020").

Q: Why do some substitute parts have different physical dimensions? A: Nichicon's UPJ2A331MHD6 and UPM2A331MHD6 variants use a larger diameter case (0.709" vs. 0.630") to accommodate different internal construction while maintaining the same electrical specifications. These require PCB layout verification before substitution.

Q: Can I use MAL213639331E3 instead of UPM2A331MHD? A: Yes, for non-automotive applications. MAL213639331E3 matches all electrical parameters and physical dimensions, but lacks AEC-Q200 certification. It offers superior 10000-hour lifetime at 105°C and lower impedance (58 mOhms), making it suitable for general-purpose circuits where extended operational life is beneficial.

Q: What does the impedance difference mean for circuit performance? A: Impedance affects high-frequency ripple current handling. The original UPM2A331MHD specifies 62 mOhms. Alternatives with higher impedance (70-90 mOhms) handle slightly lower ripple current at high frequencies. Alternatives with lower impedance (58 mOhms) handle higher ripple current. Selection depends on circuit ripple current requirements at operating frequency.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts carry RoHS3 compliance, matching the original UPM2A331MHD specification.

Q: What is the significance of "Not For New Designs" status? A: This indicates the original part is obsolete or end-of-life. Substitute parts with Active status (EEU-FC2A331, MAL213639331E3, MAL213659331E3, MAL213669331E3) are recommended for new applications. For legacy system maintenance, any electrically equivalent part is acceptable.

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