475SMH035M Aluminum Electrolytic Capacitor - Equivalent & Substitute Parts

Part Overview

The 475SMH035M is a 4.7 µF, 35 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the SMH series. This surface mount device is designed for general purpose applications requiring polar capacitive storage in compact form factors. The part is currently active in production with 657 units in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to component availability, procurement lead times, or inventory optimization.

Substiute Parts

475SMH035M

Cornell Dubilier / Illinois CapacitorIn Stock: 731475SMH035M Datasheet

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MAL215370478E3

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 3762MAL215370478E3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 475SMH035M is permissible with parts meeting the following criteria:

Core Electrical Parameters (Non-Negotiable):

• Capacitance: 4.7 µF
• Voltage Rating: 35 V
• Tolerance: ±20%
• Polarization: Polar

Mechanical Parameters (Non-Negotiable):

• Mounting Type: Surface Mount
• Package Type: Radial, Can - SMD
• Physical Dimensions: 0.157" diameter (4.00 mm), compatible height range
• Surface Mount Land Size: 0.169" L x 0.169" W (4.30 mm x 4.30 mm)

Compliance Parameters (Non-Negotiable):

• RoHS Status: ROHS3 Compliant
• Operating Temperature Range: -55°C to 105°C minimum
• Moisture Sensitivity Level: MSL 1 or equivalent

Performance Parameters (Allowable Variation):

• ESR (Equivalent Series Resistance): Lower values indicate improved performance
• Lifetime @ Temperature: Higher values indicate extended operational life
• Ripple Current Ratings: Higher values indicate improved current handling

The substitute part MAL215370478E3 satisfies all core electrical, mechanical, and compliance requirements while demonstrating superior performance characteristics in ESR and lifetime specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: 475SMH035M

The 475SMH035M remains the specified component when procurement from Cornell Dubilier / Illinois Capacitor is required or when the SMH series designation is mandated by design documentation. This part is active in production with adequate inventory (657 units in stock) and carries full ROHS3 compliance and MSL 1 rating.

Substitute Part: MAL215370478E3

The MAL215370478E3 manufactured by Vishay Beyschlag/Draloric/BC Components is a direct functional substitute meeting all core electrical and mechanical requirements. This part offers the following advantages:

• Equivalent capacitance, voltage rating, tolerance, and operating temperature range
• Identical surface mount package and land pattern compatibility
• Lower profile height (5.30 mm vs. 5.50 mm), providing additional PCB layout flexibility
• Superior ESR performance (8 Ohm @ 100 kHz vs. 49.383 Ohm @ 120 Hz)
• Extended lifetime rating (2000 Hrs @ 105°C vs. 1000 Hrs @ 105°C)
• Higher inventory availability (3738 units in stock)
• Full ROHS3 compliance and MSL 1 rating
• Tape & Reel packaging for automated assembly

Both parts are active products with unrestricted moisture sensitivity levels and REACH unaffected status. Selection between these parts is determined by procurement source, inventory requirements, and design specifications.

Frequently Asked Questions (FAQ)

Q: Can MAL215370478E3 be used as a direct replacement for 475SMH035M on existing PCBs?

A: Yes. Both parts share identical capacitance (4.7 µF), voltage rating (35 V), tolerance (±20%), operating temperature range (-55°C to 105°C), polarization (polar), mounting type (surface mount), package type (radial can SMD), and surface mount land pattern (0.169" x 0.169"). The MAL215370478E3 has a lower seated height (5.30 mm vs. 5.50 mm), which is compatible with existing PCB layouts designed for the 475SMH035M.

Q: What are the key differences between these two parts?

A: The primary differences are manufacturer origin and performance characteristics. The MAL215370478E3 demonstrates lower ESR (8 Ohm @ 100 kHz) compared to the 475SMH035M (49.383 Ohm @ 120 Hz), and provides extended lifetime (2000 Hrs @ 105°C vs. 1000 Hrs @ 105°C). The MAL215370478E3 is supplied in Tape & Reel packaging, while the 475SMH035M packaging format is not specified in the provided data.

Q: Are both parts RoHS compliant?

A: Yes. Both the 475SMH035M and MAL215370478E3 are ROHS3 compliant and carry MSL 1 (unlimited moisture sensitivity level) ratings, making them suitable for standard PCB assembly processes without additional moisture control measures.

Q: What is the significance of the ESR difference between these parts?

A: ESR (Equivalent Series Resistance) affects capacitor performance in ripple current applications and high-frequency circuits. The MAL215370478E3 exhibits significantly lower ESR (8 Ohm @ 100 kHz), which reduces heat generation and improves performance in applications with high AC ripple current or high-frequency switching. The 475SMH035M ESR specification (49.383 Ohm @ 120 Hz) is measured at a lower frequency, reflecting different application profiles.

Q: Can these parts be used interchangeably in all applications?

A: Both parts meet the core electrical and mechanical specifications for general purpose aluminum electrolytic capacitor applications within the specified voltage and temperature ranges. The superior performance characteristics of the MAL215370478E3 (lower ESR, extended lifetime) make it suitable for all applications where the 475SMH035M is specified. Selection should be based on procurement availability, design documentation requirements, and inventory management objectives.

Q: What is the moisture sensitivity level, and why does it matter?

A: Both parts carry MSL 1 (unlimited) rating, indicating they have no moisture sensitivity restrictions. This means they can be stored and handled under standard conditions without special moisture control measures, and they are suitable for standard PCB assembly processes without baking or special precautions.