SN220M010ST Equivalent & Substitute Parts Reference

Part Overview

The SN220M010ST is a 22 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. Substitute parts must maintain the same capacitance value, tolerance, and physical form factor while meeting or exceeding performance specifications.

Substiute Parts

SN220M010ST

Cornell Dubilier Electronics (CDE)In Stock: 812SN220M010ST Datasheet

Current PartRFQ

ECE-A1AN220U

Panasonic Electronic ComponentsIn Stock: 2485ECE-A1AN220U Datasheet

UpgradeRFQ

ECE-A1CN220U

Panasonic Electronic ComponentsIn Stock: 5572ECE-A1CN220U Datasheet

UpgradeRFQ

ECE-A1EN220X

Panasonic Electronic ComponentsIn Stock: 994ECE-A1EN220X Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN220M010ST is determined by the following mandatory parameters:

Core Compatibility Criteria:

• Capacitance: 22 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: 0.079" (2.00mm) (exact match required)
• Size / Dimension: 0.197" Dia (5.00mm) (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (minimum requirement)
• RoHS Status: ROHS3 Compliant (exact match required)

Voltage Rating Substitution Logic: Substitute parts may have equal or higher voltage ratings than the original 10 V specification. A higher voltage rating does not compromise circuit compatibility and provides additional design margin.

Lifetime Enhancement: Substitute parts with extended lifetime ratings (2000 Hrs @ 85°C versus 1000 Hrs @ 85°C) represent performance improvements and are acceptable substitutes.

Parameter Comparison

Engineering Selection Recommendations

ECE-A1AN220U (Upgrade Substitute): This part is an active product from Panasonic Electronic Components with identical electrical specifications to the SN220M010ST at the 10 V rating. The ECE-A1AN220U provides doubled lifetime (2000 Hrs @ 85°C versus 1000 Hrs @ 85°C) while maintaining all core parameters. ROHS3 compliance and active product status ensure long-term availability and supply chain stability. Height dimension increases from 0.433" to 0.472", requiring PCB layout verification.

ECE-A1CN220U (Upgrade Substitute): This part maintains 22 µF capacitance and ±20% tolerance with an elevated voltage rating of 16 V. The higher voltage specification provides additional design margin for circuits operating at or below 10 V. Lifetime rating of 2000 Hrs @ 85°C exceeds the original specification. ROHS3 compliance and active status support production continuity. Height dimension increases from 0.433" to 0.472", requiring PCB layout verification.

ECE-A1EN220X (Similar Substitute): This part is suitable for applications requiring higher voltage margin. The 25 V rating accommodates circuits with voltage transients or future design modifications. Capacitance, tolerance, and temperature range remain identical to the original. Lifetime rating of 2000 Hrs @ 85°C provides performance enhancement. ROHS3 compliance and active status ensure availability. Height dimension increases from 0.433" to 0.472", requiring PCB layout verification.

All substitute parts are manufactured by Panasonic Electronic Components, an active supplier with established quality and compliance certifications. Selection among these three options depends on circuit voltage requirements and available PCB space for the increased height dimension.

Frequently Asked Questions (FAQ)

Q: Can ECE-A1AN220U replace SN220M010ST in all applications?

A: ECE-A1AN220U is a direct electrical equivalent at the 10 V rating with identical capacitance, tolerance, and temperature range. The primary consideration is the increased height dimension (0.472" versus 0.433"). PCB layout must accommodate this 0.039" increase. All other parameters, including lead spacing and diameter, remain compatible.

Q: What is the difference between the three substitute options?

A: All three substitutes maintain the core 22 µF, ±20% specification and through-hole radial package. The primary difference is voltage rating: ECE-A1AN220U at 10 V (direct match), ECE-A1CN220U at 16 V (6 V margin), and ECE-A1EN220X at 25 V (15 V margin). Selection depends on circuit voltage requirements and design margin preferences.

Q: Are there any height dimension concerns?

A: Yes. All three substitute parts have a maximum seated height of 0.472" compared to the original 0.433". This represents a 0.039" increase. PCB layout and component clearance must be verified before substitution. If height is constrained, alternative solutions may be required.

Q: Do the substitute parts meet RoHS compliance?

A: All substitute parts are ROHS3 compliant, matching the original SN220M010ST specification. No compliance concerns exist for RoHS-regulated applications.

Q: Why is the original SN220M010ST obsolete?

A: Product obsolescence is determined by the manufacturer. The substitute parts from Panasonic Electronic Components are active products with established supply chains, making them suitable for ongoing production and maintenance applications.

Q: Can I use a higher voltage-rated substitute in a 10 V circuit?

A: Yes. A capacitor with a higher voltage rating (16 V or 25 V) operates safely in circuits rated for lower voltages (10 V). The voltage rating represents the maximum safe operating voltage, not the required operating voltage. Higher ratings provide additional design margin and are electrically compatible.

Q: What is the significance of the 2000 Hrs @ 85°C lifetime rating?

A: The substitute parts provide doubled lifetime compared to the original 1000 Hrs @ 85°C specification. This indicates improved reliability and extended operational life under thermal stress, representing a performance enhancement for long-term applications.