476SAK050M Equivalent & Substitute Parts

Part Overview

The 476SAK050M is a 47 µF, 50 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier / Illinois Capacitor. This component is rated for general purpose applications with an operating temperature range of -40°C to 85°C and a lifetime specification of 2000 hours at 85°C. The part is currently Active in product status and ROHS3 compliant.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when design requirements demand enhanced performance characteristics such as higher voltage ratings or extended temperature ranges, or when alternative manufacturers' components meet the same electrical and mechanical specifications for system compatibility.

Substiute Parts

476SAK050M

Cornell Dubilier / Illinois CapacitorIn Stock: 867476SAK050M Datasheet

Current PartRFQ

515D476M050AA6AE3

Vishay SpragueIn Stock: 1324515D476M050AA6AE3 Datasheet

DirectRFQ

UFW1H470MED

NichiconIn Stock: 8796UFW1H470MED Datasheet

DirectRFQ

UKW1H470MED

NichiconIn Stock: 3927UKW1H470MED Datasheet

DirectRFQ

UFW1J470MED

NichiconIn Stock: 1680UFW1J470MED Datasheet

UpgradeRFQ

UKW1J470MED

NichiconIn Stock: 8710UKW1J470MED Datasheet

UpgradeRFQ

UPW1H470MED

NichiconIn Stock: 5417UPW1H470MED Datasheet

UpgradeRFQ

SK470M050ST

Cornell Dubilier Electronics (CDE)In Stock: 3360SK470M050ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of aluminum electrolytic capacitors is determined by strict equivalence of the following parameters:

Primary Equivalence Criteria:

• Capacitance value (47 µF)
• Voltage rating (50 V minimum for direct substitutes; 63 V for upgraded substitutes)
• Tolerance (±20%)
• Polarization (Polar)
• Mounting type (Through Hole)
• Package type (Radial, Can)
• Lead spacing (0.098" / 2.50 mm)
• Physical diameter (0.248" / 6.30 mm)

Secondary Compatibility Factors:

• Operating temperature range (-40°C ~ 85°C minimum)
• Lifetime specification (2000 Hrs @ 85°C minimum)
• RoHS3 compliance
• REACH unaffected status

Substitute parts are classified into three categories:

Direct Substitutes: Parts with identical voltage rating (50 V), capacitance (47 µF), and all mechanical dimensions. These parts are interchangeable without circuit modification.

Upgraded Substitutes: Parts with higher voltage rating (63 V) while maintaining identical capacitance and mechanical form factor. These provide enhanced voltage margin and are suitable for applications where increased voltage headroom is beneficial.

Similar Parts: Parts from the same manufacturer family with equivalent electrical specifications but potentially different physical heights or ESR characteristics. These require verification of board layout compatibility.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (50 V Rating):

The parts 515D476M050AA6AE3 (Vishay Sprague), UFW1H470MED (Nichicon), and UKW1H470MED (Nichicon) are direct electrical equivalents to the 476SAK050M. All three maintain the 47 µF capacitance, 50 V voltage rating, ±20% tolerance, and 2000 hour lifetime at 85°C specification. These parts are suitable for direct replacement in applications where the original specification is required.

Note that 515D476M050AA6AE3, UFW1H470MED, and UKW1H470MED are classified as Obsolete in product status. The 476SAK050M remains Active and is the preferred choice for new designs. However, the obsolete parts remain available in inventory and are suitable for legacy system maintenance and repair applications.

All direct substitutes are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Upgraded Substitutes (63 V Rating):

The parts UFW1J470MED and UKW1J470MED provide a higher voltage rating of 63 V while maintaining the 47 µF capacitance and ±20% tolerance. These upgrades are suitable for applications where increased voltage margin is required or where circuit design permits the use of higher-rated components. Both parts maintain the same 2000 hour lifetime at 85°C and operating temperature range as the primary part.

Extended Temperature Performance:

The part UPW1H470MED offers an extended operating temperature range of -55°C to 105°C and a lifetime specification of 2000 hours at 105°C, compared to the standard -40°C to 85°C range of the 476SAK050M. This part is suitable for applications requiring enhanced thermal performance or operation in extreme temperature environments.

Similar Part from Same Manufacturer:

The SK470M050ST is manufactured by Cornell Dubilier Electronics (CDE), the same manufacturer family as the 476SAK050M. This part maintains identical electrical specifications but has a greater physical height of 0.512" (13.00 mm) compared to the 0.413" (10.50 mm) of the primary part. Board layout verification is required before substitution to ensure clearance compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use a 63 V rated capacitor (UFW1J470MED or UKW1J470MED) in place of the 50 V rated 476SAK050M?

A: Yes. A higher voltage-rated capacitor is suitable for direct substitution in circuits designed for the 50 V part. The 63 V rating provides additional voltage margin and does not negatively impact circuit performance. The capacitance value (47 µF) and tolerance (±20%) remain identical.

Q: What is the difference between the Nichicon UFW and UKW series parts?

A: Both the UFW1H470MED and UKW1H470MED are 47 µF, 50 V aluminum electrolytic capacitors with identical electrical specifications and physical dimensions. The series designation (UFW versus UKW) indicates different internal design families within the Nichicon product line, but both are functionally equivalent for the specified application.

Q: Why is the SK470M050ST from Cornell Dubilier taller than the 476SAK050M?

A: The SK470M050ST has a maximum seated height of 0.512" (13.00 mm) compared to 0.413" (10.50 mm) for the 476SAK050M. Despite the same capacitance, voltage, and physical diameter, the increased height reflects different internal construction. Board layout clearance must be verified before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: What does "Obsolete" product status mean for the Nichicon and Vishay parts?

A: Obsolete status indicates that these parts are no longer in active production by the manufacturer. However, they remain available through existing inventory channels. For new designs, the Active status 476SAK050M is the preferred choice. Obsolete parts are suitable for legacy system maintenance, repair, and replacement applications where the original specification must be maintained.

Q: Can I use the UPW1H470MED in a standard application designed for the 476SAK050M?

A: Yes. The UPW1H470MED is electrically compatible with the 476SAK050M, maintaining the same 47 µF capacitance, 50 V voltage rating, and ±20% tolerance. The UPW1H470MED offers extended temperature performance (-55°C to 105°C versus -40°C to 85°C) and a higher temperature lifetime rating (2000 hours at 105°C), making it suitable for applications requiring enhanced thermal performance.

Q: What parameters must match exactly for a capacitor to be considered a direct substitute?

A: Direct substitutes must match the following parameters: capacitance (47 µF), voltage rating (50 V), tolerance (±20%), polarization (Polar), mounting type (Through Hole), package type (Radial, Can), lead spacing (0.098" / 2.50 mm), and physical diameter (0.248" / 6.30 mm). Physical height may vary slightly between manufacturers while maintaining compatibility with standard PCB layouts.