SN101M050ST Equivalent & Substitute Parts Reference

Part Overview

The SN101M050ST is a 100 µF, 50 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 is designed for general-purpose applications requiring through-hole mounting with bi-polar polarization capability.

Substiute Parts

SN101M050ST

Cornell Dubilier Electronics (CDE)In Stock: 1169SN101M050ST Datasheet

Current PartRFQ

ECE-A1HN101U

Panasonic Electronic ComponentsIn Stock: 23544ECE-A1HN101U Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN101M050ST is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance value: 100 µF (exact match required)
• Voltage rating: 50 V (minimum acceptable)
• Tolerance: ±20% (standard for aluminum electrolytic capacitors)
• Operating temperature range: -40°C ~ 85°C (minimum required coverage)
• Polarization: Bi-Polar (functional requirement)

Mechanical Parameters:

• Mounting type: Through Hole (PCB assembly compatibility)
• Package type: Radial, Can (form factor and footprint)
• Lead spacing: 0.197" (5.00mm) (PCB hole pattern compatibility)

Compliance Parameters:

• RoHS3 Compliance (regulatory requirement)

The ECE-A1HN101U from Panasonic Electronic Components meets all substitution criteria and is classified as an active product with extended lifetime rating.

Parameter Comparison

Engineering Selection Recommendations

The ECE-A1HN101U is a direct functional equivalent for the SN101M050ST based on matching electrical and mechanical specifications. Both components satisfy the core substitution criteria: identical capacitance, voltage rating, tolerance, operating temperature range, polarization type, lead spacing, and mounting configuration.

The ECE-A1HN101U offers extended lifetime (2000 Hrs @ 85°C versus 1000 Hrs @ 85°C), providing improved reliability in thermal stress conditions. Both parts maintain ROHS3 compliance and are suitable for general-purpose applications.

The dimensional difference in can diameter (10.00mm versus 13.00mm) must be verified against PCB layout constraints. The identical lead spacing and height ensure compatibility with existing through-hole footprints, provided the can diameter does not create mechanical interference.

Frequently Asked Questions (FAQ)

Q: Can the ECE-A1HN101U replace the SN101M050ST in existing designs?

A: Yes, the ECE-A1HN101U meets all electrical and mechanical substitution criteria. Verification of PCB layout clearance is required due to the smaller can diameter (10.00mm versus 13.00mm).

Q: What is the significance of the extended lifetime rating on the Panasonic part?

A: The ECE-A1HN101U provides 2000 Hrs @ 85°C compared to 1000 Hrs @ 85°C for the SN101M050ST. This extended rating indicates improved thermal stability and longer operational life under elevated temperature conditions.

Q: Are both parts RoHS compliant?

A: Yes, both the SN101M050ST and ECE-A1HN101U are ROHS3 compliant.

Q: Does the smaller can diameter affect electrical performance?

A: No. The can diameter is a mechanical parameter that does not affect electrical characteristics. Capacitance, voltage rating, tolerance, and operating temperature range remain equivalent.

Q: What is the lead spacing requirement for PCB compatibility?

A: Both parts feature 0.197" (5.00mm) lead spacing, ensuring compatibility with existing through-hole PCB designs.

Q: Why is the SN101M050ST classified as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Cornell Dubilier Electronics. The ECE-A1HN101U, classified as active, is currently in production and available for new designs and replacements.