SN330M010ST Equivalent & Substitute Parts Reference

Part Overview

The SN330M010ST is a 33 µF, 10 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 1000 hours at 85°C, suitable for general-purpose applications requiring through-hole mounting.

Substiute Parts

SN330M010ST

Cornell Dubilier Electronics (CDE)In Stock: 657SN330M010ST Datasheet

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ECE-A1EN330U

Panasonic Electronic ComponentsIn Stock: 14181ECE-A1EN330U Datasheet

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UVP1E330MED1TD

NichiconIn Stock: 3036UVP1E330MED1TD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN330M010ST is determined by strict adherence to the following electrical and mechanical parameters:

Mandatory Matching Parameters:

• Capacitance: 33 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Bi-Polar (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can (exact match required)
• Lead Spacing: 0.098" (2.50mm) (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (minimum requirement)

Allowable Parameter Variations:

• Voltage - Rated: Substitute parts may have equal or higher voltage ratings. The SN330M010ST operates at 10 V; substitutes rated at 25 V are acceptable as they provide enhanced voltage margin without affecting circuit compatibility.
• Lifetime @ Temp.: Substitute parts may have equal or longer operational lifetime at 85°C. The SN330M010ST specifies 1000 hours; substitutes with 2000 hours provide improved reliability.
• Physical Dimensions: Minor variations in diameter and height are acceptable provided lead spacing remains constant and the component fits within the PCB footprint.
• ESR (Equivalent Series Resistance): Variations are acceptable; lower ESR values indicate improved performance characteristics.
• Ripple Current: Variations are acceptable; higher ripple current ratings indicate enhanced capability.

Parameter Comparison

Engineering Selection Recommendations

ECE-A1EN330U (Panasonic Electronic Components) - Preferred Substitute

The ECE-A1EN330U is the recommended substitute for the SN330M010ST. This component matches all mandatory electrical and mechanical parameters while providing enhanced performance characteristics. The 25 V voltage rating provides additional safety margin compared to the original 10 V specification. The doubled lifetime rating of 2000 hours at 85°C improves long-term reliability. The component is currently in active production status, ensuring availability and supply chain continuity. ROHS3 compliance and REACH unaffected status confirm regulatory alignment with modern manufacturing standards.

UVP1E330MED1TD (Nichicon) - Alternative Substitute

The UVP1E330MED1TD is an acceptable alternative substitute meeting all mandatory electrical and mechanical parameters. This component also provides a 25 V voltage rating and 2000-hour lifetime at 85°C. However, the product status is classified as obsolete, which may present future supply constraints. The maximum seated height of 0.492" (12.50mm) exceeds that of the primary substitute and original part, requiring verification of available PCB clearance. ROHS3 compliance and REACH unaffected status confirm regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the ECE-A1EN330U replace the SN330M010ST in all applications?

A: Yes. The ECE-A1EN330U matches all mandatory parameters: 33 µF capacitance, ±20% tolerance, bi-polar polarization, through-hole mounting, radial can package, and 0.098" (2.50mm) lead spacing. The higher 25 V voltage rating is compatible with circuits designed for 10 V operation. The improved 2000-hour lifetime at 85°C provides enhanced reliability.

Q: What is the significance of the voltage rating difference between 10 V and 25 V?

A: The substitute parts are rated for 25 V, which is higher than the original 10 V specification. In circuit applications, a higher voltage rating does not negatively affect performance when the actual operating voltage remains at or below 10 V. The higher rating provides additional safety margin and stress reduction on the component.

Q: Are there physical dimension differences that affect PCB compatibility?

A: Minor dimensional variations exist. The ECE-A1EN330U has a diameter of 0.248" (6.30mm) compared to the original 0.236" (6.00mm), and a height of 0.441" (11.20mm) compared to 0.433" (11.00mm). The UVP1E330MED1TD has a height of 0.492" (12.50mm). Lead spacing remains constant at 0.098" (2.50mm) for all parts. Verify available PCB clearance before selection, particularly for the Nichicon alternative.

Q: Why is the ECE-A1EN330U preferred over the UVP1E330MED1TD?

A: The ECE-A1EN330U is in active production status, ensuring long-term availability and supply chain reliability. The UVP1E330MED1TD is classified as obsolete, presenting potential future sourcing challenges. Both parts meet all mandatory electrical and mechanical parameters; the selection difference is based on product lifecycle status and supply continuity.

Q: Do the substitute parts maintain RoHS3 compliance?

A: Yes. Both substitute parts are ROHS3 compliant, matching the regulatory status of the original SN330M010ST. The ECE-A1EN330U additionally confirms REACH unaffected status, providing comprehensive environmental compliance documentation.

Q: What is the impact of the ripple current differences?

A: The substitute parts have slightly higher ripple current ratings at 120 Hz (90 mA for Panasonic, 80 mA for Nichicon) compared to the original 77 mA. Higher ripple current capability indicates improved thermal performance and reduced stress under AC current conditions. This variation is acceptable and does not affect substitution compatibility.