Equivalent & Substitute Parts for UPM1K331MHD

Part Overview

The UPM1K331MHD is a 330 µF, 80 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for automotive applications with AEC-Q200 compliance and features a 5000-hour lifetime at 105°C operating temperature. The part is designated as "Not For New Designs," making identification of functionally equivalent alternatives essential for ongoing maintenance, repair, and legacy system support.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	80 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	0.197" (5.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UPM1K331MHD is determined by strict alignment of electrical and mechanical parameters:

Primary Electrical Criteria:

Capacitance: 330 µF (exact match required)
Voltage Rating: 80 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)

Primary Mechanical Criteria:

Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.197" (5.00mm) for direct pin-compatible substitution

Secondary Criteria:

Operating Temperature Range: -55°C ~ 105°C (exact match required)
Lifetime @ Temperature: 5000 Hrs @ 105°C (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)

Compliance Considerations:

AEC-Q200 rating preferred for automotive applications but not mandatory for general-purpose substitutes
REACH status may vary between direct and similar substitutes

Parameter Comparison

Parameter	UPM1K331MHD (Main)	UPJ1K331MHD (Direct)	UPM1K331MHD6 (Similar)
Manufacturer	Nichicon	Nichicon	Nichicon
Series	UPM	UPJ	UPM
Capacitance	330 µF	330 µF	330 µF
Voltage Rating	80 V	80 V	80 V
Tolerance	±20%	±20%	±20%
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Lifetime @ Temp.	5000 Hrs @ 105°C	5000 Hrs @ 105°C	5000 Hrs @ 105°C
Polarization	Polar	Polar	Polar
Mounting Type	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can	Radial, Can
Lead Spacing	0.197" (5.00mm)	0.197" (5.00mm)	0.295" (7.50mm)
Size / Dimension	0.492" Dia (12.50mm)	0.492" Dia (12.50mm)	0.630" Dia (16.00mm)
Height - Seated (Max)	1.476" (37.50mm)	1.457" (37.00mm)	1.063" (27.00mm)
Impedance	88 mOhms	88 mOhms	99 mOhms
Ripple Current @ 120 Hz	1.1 A	767 mA	1.1 A
Ripple Current @ 10 kHz	1.45 A	1 A	1.44 A
AEC-Q200 Rating	Yes	No	Yes
Applications	Automotive	General Purpose	Automotive
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Affected	REACH Unaffected	REACH Affected
Product Status	Not For New Designs	Not For New Designs	Not For New Designs

Engineering Selection Recommendations

UPJ1K331MHD (Direct Electrical Equivalent): This part matches all core electrical specifications and operates within identical temperature and lifetime parameters. Lead spacing and physical dimensions are identical to the main part, enabling direct pin-compatible substitution on PCBs designed for the UPM1K331MHD. The primary distinction is application classification: UPJ1K331MHD is designated for general-purpose use rather than automotive. REACH status differs (REACH Unaffected vs. REACH Affected), which may impact supply chain compliance requirements depending on end-use geography and regulations. AEC-Q200 certification is absent from this variant.

UPM1K331MHD6 (Similar Automotive Equivalent): This part maintains identical electrical specifications and automotive AEC-Q200 compliance. Lead spacing differs at 0.295" (7.50mm) versus the main part's 0.197" (5.00mm), requiring PCB layout modification for installation. Physical dimensions are larger (0.630" diameter vs. 0.492", height 1.063" vs. 1.476"), which may affect board space availability. Impedance is slightly elevated at 99 mOhms compared to 88 mOhms. Ripple current ratings at both 120 Hz and 10 kHz are marginally lower. REACH status matches the main part. This variant is suitable for applications where PCB redesign is feasible and automotive qualification is required.

Frequently Asked Questions (FAQ)

Q: Can UPJ1K331MHD be used as a direct replacement for UPM1K331MHD in automotive applications?

A: UPJ1K331MHD provides electrical and thermal equivalence with identical lead spacing and physical dimensions, enabling direct PCB substitution. However, it lacks AEC-Q200 automotive certification. Use in automotive systems requires evaluation against specific application requirements and regulatory compliance standards.

Q: What is the primary difference between UPM1K331MHD and UPM1K331MHD6?

A: Both parts share identical electrical specifications and automotive AEC-Q200 compliance. The key differences are lead spacing (0.197" vs. 0.295"), physical dimensions, and impedance (88 mOhms vs. 99 mOhms). UPM1K331MHD6 requires PCB layout modification due to different lead spacing.

Q: Are all three parts pin-compatible?

A: UPM1K331MHD and UPJ1K331MHD are pin-compatible with identical lead spacing of 0.197" (5.00mm). UPM1K331MHD6 has different lead spacing at 0.295" (7.50mm) and is not pin-compatible without PCB modification.

Q: Does REACH status affect component selection?

A: REACH status indicates regulatory classification in the European Union. UPM1K331MHD and UPM1K331MHD6 are REACH Affected, while UPJ1K331MHD is REACH Unaffected. Selection depends on supply chain requirements and end-use market regulations.

Q: What are the ripple current implications for substitution?

A: UPM1K331MHD and UPM1K331MHD6 deliver higher ripple current capacity (1.1 A @ 120 Hz, 1.44-1.45 A @ 10 kHz) compared to UPJ1K331MHD (767 mA @ 120 Hz, 1 A @ 10 kHz). Applications requiring maximum ripple current handling should prioritize UPM series variants.

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