Equivalent & Substitute Parts for UWS1H330MCL1GS

Part Overview

The UWS1H330MCL1GS is a 33 µF, 50 V aluminum electrolytic capacitor manufactured by Nichicon in the UWS series. This surface mount component is rated for 2000 hours at 85°C and is designed for high temperature reflow applications. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Capacitance	33 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Mounting Type	Surface Mount
Package Type	Radial, Can - SMD
Size / Dimension	0.315" Dia (8.00mm)
Height - Seated (Max)	0.244" (6.20mm)
Surface Mount Land Size	0.327" L x 0.327" W (8.30mm x 8.30mm)
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the UWS1H330MCL1GS is determined by strict equivalence in the following parameters:

Capacitance: 33 µF (exact match required)
Voltage Rating: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Operating Temperature Range: -40°C ~ 85°C (exact match required)
Lifetime @ Temperature: 2000 Hrs @ 85°C (exact match required)
Mounting Type: Surface Mount (exact match required)
Package Type: Radial, Can - SMD (exact match required)
Surface Mount Land Size: 0.327" L x 0.327" W (8.30mm x 8.30mm) (exact match required)

Substitute parts are grouped into two categories:

Direct Equivalent: UUR1H330MCL1GS (Nichicon) — identical electrical specifications and land size, differs only in packaging format and height tolerance.

Compatible Substitutes: Parts meeting all critical electrical parameters and land size requirements, with minor variations in physical dimensions, ripple current ratings, or product status that do not affect functional compatibility in the specified application.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 85°C	Size Dia	Height (Max)	Land Size	Product Status
UWS1H330MCL1GS	Nichicon	33 µF	50 V	±20%	2000 Hrs	0.315" (8.00mm)	0.244" (6.20mm)	0.327" x 0.327" (8.30mm x 8.30mm)	Obsolete
UUR1H330MCL1GS	Nichicon	33 µF	50 V	±20%	2000 Hrs	0.315" (8.00mm)	0.256" (6.50mm)	0.327" x 0.327" (8.30mm x 8.30mm)	Obsolete
UUR1H330MCL6GS	Nichicon	33 µF	50 V	±20%	2000 Hrs	0.248" (6.30mm)	0.315" (8.00mm)	0.260" x 0.260" (6.60mm x 6.60mm)	Obsolete
UWX1H330MCL1GB	Nichicon	33 µF	50 V	±20%	2000 Hrs	0.315" (8.00mm)	0.217" (5.50mm)	0.327" x 0.327" (8.30mm x 8.30mm)	Obsolete
50SEV33M6.3X8	Rubycon	33 µF	50 V	±20%	2000 Hrs	0.248" (6.30mm)	0.315" (8.00mm)	0.260" x 0.260" (6.60mm x 6.60mm)	Active
EEE-1HA330AP	Panasonic Electronic Components	33 µF	50 V	±20%	2000 Hrs	0.315" (8.00mm)	0.402" (10.20mm)	0.327" x 0.327" (8.30mm x 8.30mm)	Not For New Designs
EEE-1HA330P	Panasonic Electronic Components	33 µF	50 V	±20%	2000 Hrs	0.315" (8.00mm)	0.402" (10.20mm)	0.327" x 0.327" (8.30mm x 8.30mm)	Not For New Designs
EEE-1HA330UAP	Panasonic Electronic Components	33 µF	50 V	±20%	1000 Hrs	0.315" (8.00mm)	0.244" (6.20mm)	0.327" x 0.327" (8.30mm x 8.30mm)	Active
EEE-1HA330UP	Panasonic Electronic Components	33 µF	50 V	±20%	2000 Hrs	0.315" (8.00mm)	0.244" (6.20mm)	0.327" x 0.327" (8.30mm x 8.30mm)	Not For New Designs
EEE-1HA330XP	Panasonic Electronic Components	33 µF	50 V	±20%	2000 Hrs	0.248" (6.30mm)	0.303" (7.70mm)	0.260" x 0.260" (6.60mm x 6.60mm)	Not For New Designs
EMVA500ARA330MF80G	Chemi-Con	33 µF	50 V	±20%	2000 Hrs	0.248" (6.30mm)	0.303" (7.70mm)	0.260" x 0.260" (6.60mm x 6.60mm)	Active

Engineering Selection Recommendations

For Direct Replacement (Same Land Size - 8.30mm x 8.30mm):

UUR1H330MCL1GS (Nichicon) is the primary direct equivalent. It maintains identical electrical specifications, land size, and operating parameters. The height difference of 0.012" (0.30mm) is within typical PCB assembly tolerances and does not affect functional compatibility.

EEE-1HA330UP (Panasonic Electronic Components) provides an active alternative with matching land size and height. Although classified as "Not For New Designs," it meets all electrical requirements and is currently in stock.

For Compact Form Factor (Smaller Land Size - 6.60mm x 6.60mm):

UUR1H330MCL6GS (Nichicon) and EEE-1HA330XP (Panasonic Electronic Components) offer reduced footprint options. Both maintain 33 µF, 50 V, ±20% specifications and 2000 Hrs @ 85°C lifetime. These parts require PCB redesign to accommodate the smaller 6.60mm x 6.60mm land size.

For Active Product Status:

50SEV33M6.3X8 (Rubycon) is the only substitute with active product status. It meets all electrical parameters and includes AEC-Q200 automotive qualification. The smaller 6.60mm x 6.60mm land size requires PCB layout modification.

EMVA500ARA330MF80G (Chemi-Con) is active and available. It uses the compact 6.60mm x 6.60mm land size and is suitable for general purpose applications.

For Automotive Applications:

EEE-1HA330UAP (Panasonic Electronic Components) is the only active part with AEC-Q200 qualification and matching 8.30mm x 8.30mm land size. Note: This part has a reduced lifetime rating of 1000 Hrs @ 85°C compared to the 2000 Hrs specification of the main part.

Frequently Asked Questions (FAQ)

Q: Can UUR1H330MCL1GS be used as a direct drop-in replacement for UWS1H330MCL1GS?

A: Yes. Both parts share identical electrical specifications (33 µF, 50 V, ±20%, 2000 Hrs @ 85°C), operating temperature range, and surface mount land size (8.30mm x 8.30mm). The height difference of 0.012" (0.30mm) is within standard PCB assembly clearance tolerances.

Q: What is the difference between parts with 8.30mm x 8.30mm land size and 6.60mm x 6.60mm land size?

A: The land size determines the PCB footprint. Parts with 8.30mm x 8.30mm land size (UWS1H330MCL1GS, UUR1H330MCL1GS, UWX1H330MCL1GB, EEE-1HA330AP, EEE-1HA330P, EEE-1HA330UAP, EEE-1HA330UP) fit existing PCB layouts designed for the original part. Parts with 6.60mm x 6.60mm land size (UUR1H330MCL6GS, EEE-1HA330XP, EMVA500ARA330MF80G, 50SEV33M6.3X8) require PCB redesign but offer a more compact form factor.

Q: Why do some substitute parts have different height specifications?

A: Height variation is a design characteristic of different manufacturers and series. The UWS1H330MCL1GS has a maximum seated height of 0.244" (6.20mm). Substitutes range from 0.217" (5.50mm) to 0.402" (10.20mm). Height differences do not affect electrical function but must be considered for PCB clearance and assembly constraints.

Q: What does "Not For New Designs" product status mean?

A: This designation indicates the part is still available but the manufacturer recommends using alternative parts for new product development. These parts remain suitable for replacement and maintenance of existing equipment.

Q: Is EEE-1HA330UAP a suitable substitute despite having 1000 Hrs @ 85°C instead of 2000 Hrs?

A: EEE-1HA330UAP meets all electrical specifications and is the only active part with matching 8.30mm x 8.30mm land size and AEC-Q200 automotive qualification. The reduced lifetime rating of 1000 Hrs @ 85°C must be evaluated against your application's thermal stress profile and expected service life requirements.

Q: Which substitute offers the best availability and active product status?

A: 50SEV33M6.3X8 (Rubycon) and EMVA500ARA330MF80G (Chemi-Con) are both active products with current inventory. 50SEV33M6.3X8 includes AEC-Q200 automotive qualification. Both require PCB redesign due to the smaller 6.60mm x 6.60mm land size.

Q: Can I use a part with a different land size without modifying the PCB?

A: No. Land size is determined by the PCB footprint pattern. Using a part with a different land size requires PCB layout modification and re-qualification of the assembly process.

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