Equivalent & Substitute Parts for UPJ1H331MHD6

Part Overview

The UPJ1H331MHD6 is a 330 µF, 50 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in Nichicon's product line. Finding equivalent and substitute parts is necessary for ongoing maintenance, repair, and legacy system support where this specific part number may no longer be readily available or where design flexibility permits component substitution within electrical and mechanical constraints.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ Temperature	5000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.295" (7.50mm)
Diameter	0.630" (16.00mm)
Height (Seated Max)	0.650" (16.50mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UPJ1H331MHD6 is determined by strict adherence to the following electrical and mechanical parameters:

Electrical Equivalence Requirements:

Capacitance: 330 µF (exact match required)
Voltage Rating: 50 V (minimum; higher ratings acceptable)
Tolerance: ±20% (as specified)
Lifetime: 5000 Hrs @ 105°C (minimum acceptable)
Operating Temperature: -55°C ~ 105°C (minimum range)
Polarization: Polar (required for electrolytic type)

Mechanical Compatibility Requirements:

Package Type: Radial, Can (through-hole only)
Lead Spacing: 0.295" (7.50mm) preferred for direct PCB fit; 0.197" (5.00mm) acceptable with board redesign
Physical Dimensions: Height and diameter must accommodate board layout constraints

Substitute parts are grouped into two categories based on lead spacing compatibility:

Category A - Direct Fit (0.295" / 7.50mm Lead Spacing): UPJ1H331MPD, UPM1H331MHD6

Category B - Alternative Footprint (0.197" / 5.00mm Lead Spacing): UPW1H331MPD, EEU-FC1H331, EEU-FC1H331B, EEU-FC1H331L, ELXY500ELL331MJ30S, ELXY500ELL331MK20S, ELXZ500ELL331MJ25S

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Lead Spacing	Diameter	Height (Max)	Product Status	Ratings	Impedance
UPJ1H331MHD6	Nichicon	330 µF	50 V	±20%	5000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	0.650" (16.50mm)	Not For New Designs	—	78 mOhms
UPJ1H331MPD	Nichicon	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	1.299" (33.00mm)	Not For New Designs	—	72 mOhms
UPM1H331MHD6	Nichicon	330 µF	50 V	±20%	5000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	0.669" (17.00mm)	Not For New Designs	AEC-Q200	60 mOhms
UPW1H331MPD	Nichicon	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	0.787" (20.00mm)	Not For New Designs	—	90 mOhms
EEU-FC1H331	Panasonic Electronic Components	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.787" (20.00mm)	Active	AEC-Q200	63 mOhms
EEU-FC1H331B	Panasonic Electronic Components	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.866" (22.00mm)	Active	AEC-Q200	63 mOhms
EEU-FC1H331L	Panasonic Electronic Components	330 µF	50 V	±20%	3000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	1.260" (32.00mm)	Active	AEC-Q200	60 mOhms
ELXY500ELL331MJ30S	Chemi-Con	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	1.240" (31.50mm)	Active	AEC-Q200	54 mOhms
ELXY500ELL331MK20S	Chemi-Con	330 µF	50 V	±20%	7000 Hrs	0.197" (5.00mm)	0.492" (12.50mm)	0.846" (21.50mm)	Active	AEC-Q200	59 mOhms
ELXZ500ELL331MJ25S	Chemi-Con	330 µF	50 V	±20%	5000 Hrs	0.197" (5.00mm)	0.394" (10.00mm)	1.043" (26.50mm)	Active	AEC-Q200	73 mOhms

Engineering Selection Recommendations

For Direct PCB Fit (No Layout Modification Required):

UPM1H331MHD6 is the primary substitute when maintaining the original 0.295" (7.50mm) lead spacing. This Nichicon part matches the mechanical footprint of the UPJ1H331MHD6 and maintains identical electrical specifications. UPM1H331MHD6 carries AEC-Q200 automotive qualification and demonstrates lower impedance (60 mOhms vs. 78 mOhms), providing improved performance characteristics. Product status is Not For New Designs, consistent with the original part.

For Active Product Line Substitution:

When transitioning to currently active products, EEU-FC1H331 or EEU-FC1H331B (Panasonic) are recommended. Both parts are Active status products with AEC-Q200 qualification. These parts require PCB redesign due to 0.197" (5.00mm) lead spacing but offer superior impedance performance (63 mOhms) and established supply chain availability. EEU-FC1H331B is available in Cut Tape packaging, providing flexibility in procurement quantities.

For Automotive Applications with Extended Lifetime:

ELXY500ELL331MK20S (Chemi-Con) provides 7000 Hrs @ 105°C lifetime rating, exceeding the original 5000 Hrs specification. This part carries AEC-Q200 qualification and 0.197" (5.00mm) lead spacing. Impedance is 59 mOhms, offering improved electrical performance.

For Compact Board Layouts:

ELXY500ELL331MJ30S and ELXZ500ELL331MJ25S (Chemi-Con) offer the smallest diameter (0.394" / 10.00mm) among substitute options with 0.197" (5.00mm) lead spacing. Both are Active status with AEC-Q200 qualification and 5000 Hrs lifetime rating.

Frequently Asked Questions (FAQ)

Q: Can UPJ1H331MPD be used as a direct replacement for UPJ1H331MHD6?

A: UPJ1H331MPD matches all electrical specifications (330 µF, 50 V, ±20%, 5000 Hrs @ 105°C) but has different mechanical dimensions. Lead spacing is 0.197" (5.00mm) versus 0.295" (7.50mm) on the original part. Direct PCB substitution is not possible without board redesign. However, electrical performance is equivalent or superior (72 mOhms impedance vs. 78 mOhms).

Q: What is the difference between EEU-FC1H331 and EEU-FC1H331B?

A: Both parts are electrically and mechanically identical (330 µF, 50 V, 5000 Hrs @ 105°C, 0.197" lead spacing, 63 mOhms impedance). The primary difference is packaging: EEU-FC1H331 is supplied in Bulk, while EEU-FC1H331B is supplied in Cut Tape (CT). Selection depends on procurement and assembly requirements.

Q: Why does EEU-FC1H331L show 3000 Hrs @ 105°C instead of 5000 Hrs?

A: EEU-FC1H331L is a variant within the Panasonic FC series with reduced lifetime rating (3000 Hrs vs. 5000 Hrs). This part is not recommended as a substitute for UPJ1H331MHD6 when 5000 Hrs lifetime is a design requirement. Use EEU-FC1H331 or EEU-FC1H331B instead.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status, matching the original UPJ1H331MHD6 compliance level.

Q: Which substitute parts carry AEC-Q200 automotive qualification?

A: UPM1H331MHD6, EEU-FC1H331, EEU-FC1H331B, EEU-FC1H331L, ELXY500ELL331MJ30S, ELXY500ELL331MK20S, and ELXZ500ELL331MJ25S all carry AEC-Q200 qualification. UPJ1H331MPD and UPW1H331MPD do not have automotive ratings.

Q: What is the impedance difference between the original part and substitutes?

A: UPJ1H331MHD6 has 78 mOhms impedance. Substitutes range from 54 mOhms (ELXY500ELL331MJ30S) to 90 mOhms (UPW1H331MPD). Lower impedance generally indicates improved high-frequency performance and reduced ripple current effects.

Q: Can I use a substitute with higher voltage rating (e.g., 63 V instead of 50 V)?

A: The provided data specifies 50 V rated parts only. Substitution with higher voltage ratings is outside the scope of this equivalency reference and requires separate electrical design verification.

Q: What lead spacing options are available?

A: Two lead spacing options exist: 0.295" (7.50mm) for direct fit with UPJ1H331MHD6 and UPM1H331MHD6; and 0.197" (5.00mm) for all other substitutes. Lead spacing selection determines PCB layout compatibility.

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