Equivalent & Substitute Parts for 476SML050M

Part Overview

The 476SML050M is a 47 µF, 50 V aluminum electrolytic capacitor in surface mount radial can package, manufactured by Cornell Dubilier / Illinois Capacitor. This component is designed for bypass and decoupling applications with an operating temperature range of -40°C to 85°C and a rated lifetime of 2000 hours at 85°C. The part is Active status and RoHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, application-specific thermal requirements, or extended operational temperature demands.

Substiute Parts

476SML050M

Cornell Dubilier / Illinois CapacitorIn Stock: 879476SML050M Datasheet

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476AXZ050M

Cornell Dubilier / Illinois CapacitorIn Stock: 18787476AXZ050M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 476SML050M is determined by strict equivalence in the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Capacitance value: 47 µF (exact match required)
• Voltage rating: 50 V (minimum, equal or higher acceptable)
• Tolerance: ±20% (matching tolerance band)
• Polarization: Polar (electrolytic type)

Mechanical Equivalence Criteria:

• Package type: Radial, Can - SMD (surface mount)
• Mounting type: Surface Mount
• Physical dimensions: 0.248" diameter (6.30 mm) and compatible height
• Surface mount land size: 0.260" L x 0.260" W (6.60 mm x 6.60 mm)

Compliance & Certification Criteria:

• RoHS3 compliance required
• MSL rating: 1 (Unlimited moisture sensitivity level)
• REACH status: REACH Unaffected

The 476AXZ050M qualifies as a substitute part because it maintains identical capacitance, voltage rating, tolerance, package type, mounting configuration, physical dimensions, and compliance certifications. Differences in ESR, ripple current ratings, and operating temperature range do not disqualify substitution when the application requirements fall within the substitute part's specifications.

Parameter Comparison

Engineering Selection Recommendations

476SML050M Selection Criteria:

• Primary choice for applications operating within -40°C to 85°C temperature range
• Suitable for bypass and decoupling functions with specified ripple current requirements at 120 Hz (105 mA)
• Active product status with established supply chain
• RoHS3 and REACH compliance confirmed

476AXZ050M Selection Criteria:

• Substitute for applications requiring extended operating temperature range (-55°C to 105°C)
• Suitable when higher temperature lifetime rating (2000 Hrs @ 105°C) is required
• Acceptable for general purpose applications with ripple current tolerance at 100 kHz (185 mA)
• Active product status with higher inventory availability (18,727 pcs vs. 848 pcs)
• RoHS3 and REACH compliance confirmed
• Physical compatibility confirmed: identical diameter and land size; height difference of 0.008" (0.20 mm) is within PCB assembly tolerances

Both parts maintain identical electrical specifications for capacitance, voltage, tolerance, and ESR. Selection between them depends on application temperature requirements and ripple current specifications at operating frequencies.

Frequently Asked Questions (FAQ)

Q: Can 476AXZ050M be used as a direct replacement for 476SML050M on the same PCB?

A: Yes. Both parts share identical capacitance (47 µF), voltage rating (50 V), tolerance (±20%), package type (Radial, Can - SMD), mounting type (Surface Mount), diameter (0.248" / 6.30 mm), and surface mount land size (0.260" x 0.260" / 6.60 mm x 6.60 mm). The 476AXZ050M is 0.008" (0.20 mm) shorter in seated height, which is within standard PCB assembly tolerances and does not affect electrical performance or mechanical fit.

Q: What is the difference in ripple current handling between these parts?

A: At 120 Hz, the 476SML050M handles 105 mA while the 476AXZ050M handles 92.5 mA. At 100 kHz, the 476SML050M handles 157.5 mA while the 476AXZ050M handles 185 mA. Selection depends on the application's operating frequency and ripple current magnitude at that frequency.

Q: When should I choose 476AXZ050M over 476SML050M?

A: Choose 476AXZ050M when the application requires: (1) extended operating temperature range beyond 85°C, up to 105°C maximum; (2) higher temperature lifetime rating (2000 Hrs @ 105°C vs. 2000 Hrs @ 85°C); or (3) higher ripple current capacity at 100 kHz and above.

Q: Are both parts RoHS3 compliant?

A: Yes. Both 476SML050M and 476AXZ050M are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the MSL rating for both parts?

A: Both parts have MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can these parts be used interchangeably in bypass and decoupling applications?

A: Yes, for bypass and decoupling applications. Both parts have identical capacitance, voltage rating, tolerance, and ESR specifications. Application-specific ripple current and temperature requirements determine which part is optimal for a given circuit.