SN471M016ST Equivalent & Substitute Parts

Part Overview

The SN471M016ST is a 470 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement requirements. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 1000 hours at 85°C and is suitable for general-purpose applications requiring through-hole mounting.

Substiute Parts

SN471M016ST

Cornell Dubilier Electronics (CDE)In Stock: 1128SN471M016ST Datasheet

Current PartRFQ

ECE-A1VN471U

Panasonic Electronic ComponentsIn Stock: 1064ECE-A1VN471U Datasheet

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ECE-A1CN471U

Panasonic Electronic ComponentsIn Stock: 1203ECE-A1CN471U Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN471M016ST is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Capacitance: 470 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: 16 V minimum (equal or higher voltage rating acceptable)
• Lead Spacing: 0.197" (5.00 mm) (exact match required for PCB compatibility)
• Mounting Type: Through Hole (exact match required)
• Package Type: Radial, Can (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (minimum requirement)
• Polarization: Bi-Polar (exact match required)

Acceptable Variation Parameters:

• ESR: May vary based on manufacturer design
• Lifetime @ 85°C: Equal or greater duration acceptable
• Ripple Current: Equal or greater capacity acceptable
• Case Diameter: Smaller diameter acceptable if height and lead spacing maintained
• RoHS Compliance: ROHS3 Compliant required

Two substitute parts meet these criteria: ECE-A1CN471U (direct equivalent at 16 V) and ECE-A1VN471U (upgraded voltage rating at 35 V).

Parameter Comparison

Engineering Selection Recommendations

ECE-A1CN471U (Similar Substitute): This part provides direct electrical equivalence to the SN471M016ST with identical capacitance (470 µF), tolerance (±20%), and voltage rating (16 V). The ECE-A1CN471U is manufactured by Panasonic Electronic Components and maintains active product status, ensuring long-term availability. The component offers doubled lifetime (2000 hours at 85°C versus 1000 hours), providing enhanced reliability. Physical dimensions are reduced (0.394" diameter, 0.787" height), which may require PCB layout verification but maintains the critical 0.197" lead spacing for direct pin compatibility. ROHS3 compliance is maintained. This substitute is appropriate for applications where the original 16 V rating is specified and PCB space permits smaller case dimensions.

ECE-A1VN471U (Upgrade Substitute): This part provides electrical upgrade with identical capacitance (470 µF) and tolerance (±20%) but elevated voltage rating (35 V versus 16 V). The ECE-A1VN471U is manufactured by Panasonic Electronic Components with active product status. The component offers doubled lifetime (2000 hours at 85°C) and maintains physical compatibility with case diameter of 0.492" and height of 0.984", matching the original part's height dimension. Lead spacing remains 0.197" for direct PCB compatibility. ROHS3 compliance is maintained. This substitute is appropriate for applications where voltage margin enhancement is beneficial or where circuit design permits higher voltage rating without functional impact.

Both substitute parts maintain through-hole radial can package configuration, operating temperature range (-40°C to 85°C), and bi-polar polarization required for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can ECE-A1CN471U be used as a direct replacement for SN471M016ST?

A: Yes. The ECE-A1CN471U matches all mandatory equivalence parameters: 470 µF capacitance, ±20% tolerance, 16 V voltage rating, 0.197" lead spacing, through-hole mounting, and radial can package. Physical dimensions are smaller (0.394" diameter, 0.787" height), requiring PCB layout verification to confirm clearance compatibility. Electrical performance is equivalent or superior with doubled lifetime rating.

Q: What is the difference between ECE-A1CN471U and ECE-A1VN471U?

A: Both parts share identical capacitance (470 µF), tolerance (±20%), lead spacing (0.197"), mounting type (through-hole), and package type (radial can). The primary difference is voltage rating: ECE-A1CN471U is rated 16 V (matching the original part), while ECE-A1VN471U is rated 35 V (higher voltage margin). Physical dimensions differ: ECE-A1CN471U is 0.394" diameter and 0.787" height; ECE-A1VN471U is 0.492" diameter and 0.984" height (matching original height).

Q: Are there physical compatibility concerns with the smaller ECE-A1CN471U?

A: The ECE-A1CN471U has reduced case diameter (0.394" versus 0.512") and height (0.787" versus 0.984"). Lead spacing remains identical at 0.197", ensuring pin compatibility. PCB layout must be verified to confirm adequate clearance around the component footprint. The smaller form factor may provide space benefits in constrained layouts.

Q: Can ECE-A1VN471U be used in circuits designed for 16 V operation?

A: Yes. The ECE-A1VN471U is rated for 35 V operation, which exceeds the 16 V circuit requirement. Higher voltage rating does not create functional incompatibility; the component operates safely at lower applied voltages. Physical dimensions match the original part's height (0.984"), simplifying PCB integration.

Q: What compliance certifications apply to substitute parts?

A: Both ECE-A1CN471U and ECE-A1VN471U are ROHS3 compliant and carry REACH Unaffected status. These certifications match the original SN471M016ST compliance profile, ensuring regulatory equivalence for applications requiring environmental compliance documentation.

Q: How do ripple current ratings compare?

A: The SN471M016ST specifies 570 mA ripple current at 120 Hz. ECE-A1CN471U provides 380 mA at 120 Hz (lower capacity), while ECE-A1VN471U provides 590 mA at 120 Hz (equivalent capacity). For applications with ripple current requirements exceeding 380 mA at 120 Hz, ECE-A1VN471U is the appropriate selection.

Q: What is the lifetime advantage of substitute parts?

A: The SN471M016ST specifies 1000 hours lifetime at 85°C. Both substitute parts (ECE-A1CN471U and ECE-A1VN471U) specify 2000 hours lifetime at 85°C, providing doubled operational duration under thermal stress conditions. This enhancement improves long-term reliability in applications subject to elevated temperature operation.