SN100M035ST

Part Overview

The SN100M035ST is a 10 µF aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 35 V with ±20% tolerance. This radial, through-hole component is designed for general purpose applications and operates across a temperature range of -40°C to 85°C. The product is currently obsolete, necessitating identification of suitable alternatives that maintain functional compatibility while potentially offering improved performance characteristics such as extended operational lifetime or higher voltage ratings.

Substiute Parts

SN100M035ST

Cornell Dubilier Electronics (CDE)In Stock: 1056SN100M035ST Datasheet

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ECE-A1HN100U

Panasonic Electronic ComponentsIn Stock: 50096ECE-A1HN100U Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The ECE-A1HN100U from Panasonic Electronic Components qualifies as a direct substitute for the SN100M035ST based on the following electrical and mechanical alignment:

Matched Parameters:

• Capacitance: 10 µF (identical)
• Tolerance: ±20% (identical)
• Operating Temperature Range: -40°C ~ 85°C (identical)
• Lead Spacing: 0.098" (2.50mm) (identical)
• Package / Case: Radial, Can (identical)
• Mounting Type: Through Hole (identical)
• RoHS Status: ROHS3 Compliant (identical)

Enhanced Parameters:

• Voltage - Rated: 50 V (vs. 35 V in original) provides design margin
• Lifetime @ 85°C: 2000 Hrs (vs. 1000 Hrs in original) extends operational reliability
• Product Status: Active (vs. Obsolete) ensures continued availability

The substitution maintains full electrical and mechanical compatibility while providing improved performance characteristics within the same package footprint.

Parameter Comparison

Engineering Selection Recommendations

The ECE-A1HN100U is the recommended substitute for applications currently using the SN100M035ST. Both components maintain ROHS3 compliance and equivalent regulatory classification (EAR99). The Panasonic component benefits from active manufacturing status, ensuring long-term supply chain availability. The higher voltage rating (50 V) and extended operational lifetime (2000 Hrs @ 85°C) provide design margin improvements over the original specification, making this substitution appropriate for continuation or redesign of existing applications.

Frequently Asked Questions (FAQ)

Q: Can the ECE-A1HN100U be used as a direct replacement for the SN100M035ST in existing designs?

A: Yes. The components share identical capacitance, tolerance, operating temperature range, and lead spacing. The through-hole radial package and mounting characteristics are functionally equivalent, allowing direct replacement on existing printed circuit boards.

Q: What is the significance of the higher voltage rating in the ECE-A1HN100U?

A: The 50 V rating in the Panasonic component, compared to the 35 V rating in the original part, provides additional design margin. This allows operation in applications with voltage transients or supplies with higher nominal values, without exceeding the capacitor's electrical stress limits.

Q: Are there dimensional differences between the two capacitors?

A: Minor dimensional variations exist. The ECE-A1HN100U has a slightly larger diameter (0.248" vs. 0.236") and height (0.441" vs. 0.433"). These differences remain within typical PCB layout tolerances for through-hole components and do not preclude direct substitution in standard mounting configurations.

Q: Does the ECE-A1HN100U meet the same regulatory requirements?

A: Yes. Both components are ROHS3 compliant and classified under the same ECCN (EAR99) and HTSUS code (8532.22.0020), ensuring equivalent regulatory status for procurement and use.

Q: Why is the Panasonic component rated for twice the lifetime at 85°C?

A: The ECE-A1HN100U is specified with 2000 Hrs operational lifetime at 85°C, compared to 1000 Hrs for the original SN100M035ST. This difference reflects advancements in aluminum electrolytic capacitor technology and construction, providing extended reliability in sustained high-temperature operation.