UPW1H331MPH6 Equivalent & Substitute Parts

Part Overview

The UPW1H331MPH6 is a 330 µF, 50 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The part operates across a temperature range of -55°C to 105°C with a rated lifetime of 5000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance and ripple current handling.

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
Lead Spacing	0.197" (5.00 mm)
Package Type	Radial, Can
Mounting Type	Through Hole
Polarization	Polar

Substitute Part Grouping Explanation

Substitution for the UPW1H331MPH6 is determined by strict equivalence in the following parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 50 V minimum (higher voltage ratings acceptable as upgrades)
Tolerance: ±20% (standard tolerance maintained)
Lead Spacing: 0.197" (5.00 mm) (mechanical compatibility)
Package Type: Radial, Can (form factor compatibility)
Mounting Type: Through Hole (PCB assembly compatibility)
Operating Temperature Range: -55°C ~ 105°C (thermal envelope)
Lifetime @ Temperature: 5000 Hrs @ 105°C (reliability specification)

Substitute parts are grouped into two categories: direct equivalents (same voltage rating) and upgrades (higher voltage rating with identical physical and electrical characteristics).

Parameter Comparison

Parameter	UPW1H331MPH6	UPW1H331MPD	ELXY500ELL331MJ30S	ELXZ630ELL331MJ30S	EEU-FC1H331
Manufacturer	Nichicon	Nichicon	Chemi-Con	Chemi-Con	Panasonic Electronic Components
Capacitance	330 µF	330 µF	330 µF	330 µF	330 µF
Voltage Rating	50 V	50 V	50 V	63 V	50 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lead Spacing	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)
Size / Dimension	0.394" Dia (10.00 mm)	0.394" Dia (10.00 mm)	0.394" Dia (10.00 mm)	0.394" Dia (10.00 mm)	0.492" Dia (12.50 mm)
Height - Seated (Max)	1.240" (31.50 mm)	0.787" (20.00 mm)	1.240" (31.50 mm)	1.240" (31.50 mm)	0.787" (20.00 mm)
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-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	5000 Hrs @ 105°C	5000 Hrs @ 105°C
Product Status	Obsolete	Not For New Designs	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Ratings	-	-	AEC-Q200	AEC-Q200	AEC-Q200
Ripple Current @ 120 Hz	1.047 A	669.5 mA	630 mA	650 mA	962 mA
Ripple Current @ 100 kHz	1.61 A	1.03 A	1.26 A	1.3 A	1.48 A
Impedance	60 mOhms	90 mOhms	54 mOhms	90 mOhms	63 mOhms

Engineering Selection Recommendations

Direct Equivalents (50 V Rating):

UPW1H331MPD (Nichicon) is a direct equivalent with identical electrical specifications. However, it carries a "Not For New Designs" status and is not RoHS3 compliant, limiting its use to legacy system maintenance only.

EEU-FC1H331 (Panasonic Electronic Components) is an active, RoHS3-compliant direct equivalent with AEC-Q200 automotive qualification. Physical dimensions differ slightly (0.492" diameter vs. 0.394"), requiring PCB layout verification. This part is suitable for new designs and ongoing production.

Upgrade Option (63 V Rating):

ELXZ630ELL331MJ30S (Chemi-Con) provides a voltage upgrade to 63 V while maintaining all other critical parameters. It is active, RoHS3 compliant, and AEC-Q200 qualified. The higher voltage rating provides additional design margin and is electrically compatible with 50 V circuit requirements.

Preferred Substitute:

ELXY500ELL331MJ30S (Chemi-Con) is an active, RoHS3-compliant part with AEC-Q200 automotive qualification. It maintains identical physical dimensions and electrical specifications to the original part, offering the most direct substitution path for new designs and production.

Frequently Asked Questions (FAQ)

Q: Can I use a 63 V rated capacitor in place of a 50 V rated capacitor?

A: Yes. A higher voltage rating is electrically compatible with lower voltage circuit requirements. ELXZ630ELL331MJ30S (63 V) operates safely in 50 V applications and provides additional design margin.

Q: What is the significance of RoHS3 compliance?

A: RoHS3 compliance indicates the part meets current environmental and hazardous substance restrictions. The original UPW1H331MPH6 is RoHS non-compliant. All active substitute parts listed are RoHS3 compliant, meeting modern regulatory requirements.

Q: Does AEC-Q200 qualification matter for non-automotive applications?

A: AEC-Q200 is an automotive-grade reliability standard. Parts with this qualification undergo rigorous testing and are suitable for any application requiring high reliability. Non-automotive applications benefit from this enhanced qualification.

Q: Are there physical dimension constraints I should consider?

A: Yes. EEU-FC1H331 has a larger diameter (0.492" vs. 0.394") and shorter height (0.787" vs. 1.240"). Verify PCB layout and component spacing before substitution. All other parts maintain identical physical dimensions to the original.

Q: What is the difference between "Obsolete" and "Not For New Designs" status?

A: Obsolete parts are no longer manufactured or supported. "Not For New Designs" parts are still available but not recommended for new applications. For new designs, select from active status parts: ELXY500ELL331MJ30S, ELXZ630ELL331MJ30S, or EEU-FC1H331.

Q: How do ripple current specifications affect part selection?

A: Ripple current capacity determines the part's ability to handle AC current superimposed on DC voltage. All substitute parts meet or exceed the original specification at both 120 Hz and 100 kHz, ensuring thermal stability in the application.

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