ESMM401VSN471MA35S Equivalent & Substitute Parts

Part Overview

The ESMM401VSN471MA35S is a 470 µF, 400 V aluminum electrolytic capacitor manufactured by Chemi-Con in the SMM series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring stable capacitance and reliable performance across industrial temperature ranges. The part is Active status and RoHS Compliant, making it suitable for modern electronic equipment. Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and extended product lifecycle support when the primary part becomes unavailable or when design requirements necessitate upgraded performance characteristics.

Substiute Parts

ESMM401VSN471MA35S

Chemi-ConIn Stock: 1074ESMM401VSN471MA35S Datasheet

Current PartRFQ

ELHS451VSN471MA35S

Chemi-ConIn Stock: 863ELHS451VSN471MA35S Datasheet

UpgradeRFQ

B43644B9477M000

EPCOS - TDK ElectronicsIn Stock: 1350B43644B9477M000 Datasheet

DirectRFQ

861221386021

Würth ElektronikIn Stock: 971861221386021 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ESMM401VSN471MA35S are classified based on strict adherence to the following electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

• Capacitance: 470 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: 400 V or higher
• Package / Case: Radial, Can - Snap-In (exact match required)
• Mounting Type: Through Hole (exact match required)
• Lead Spacing: 10.00 mm (exact match required)
• Diameter: 35.00 mm (exact match required)
• Polarization: Polar (exact match required)
• RoHS Compliance: Required

Secondary Compatibility Parameters:

• Operating Temperature Range: Must encompass or exceed -25°C ~ 85°C
• Height - Seated (Max): Physical fit within 37.00 mm or minor tolerance
• Ripple Current Ratings: Must meet or exceed application requirements

Three substitute parts meet these criteria and are classified as follows:

Upgrade Substitute: ELHS451VSN471MA35S (Chemi-Con LHS series) - Higher voltage rating (450 V) with extended lifetime (5000 Hrs @ 105°C) and wider operating temperature range (-40°C ~ 105°C).

Direct Equivalent: B43644B9477M000 (EPCOS - TDK Electronics B43644 series) - Identical voltage rating (400 V) with superior ESR performance (210 mOhm @ 100Hz) and extended lifetime (5000 Hrs @ 105°C).

Parametric Equivalent: 861221386021 (Würth Elektronik WCAP-AIE8 series) - Identical electrical specifications and lifetime rating (3000 Hrs @ 85°C) with matching physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

ELHS451VSN471MA35S (Chemi-Con LHS Series - Upgrade Substitute)

This part is recommended for applications requiring extended operational life and enhanced thermal performance. The 450 V rating provides additional voltage margin over the 400 V specification of the main part. The extended lifetime rating of 5000 Hrs @ 105°C and wider operating temperature range (-40°C ~ 105°C) support deployment in demanding industrial environments. Both parts are RoHS Compliant and manufactured by Chemi-Con, ensuring design continuity. The height increase of 0.50 mm (37.50 mm vs. 37.00 mm) must be verified for PCB clearance in space-constrained applications. This substitute is suitable for new designs prioritizing reliability and longevity.

B43644B9477M000 (EPCOS - TDK Electronics B43644 Series - Direct Equivalent)

This part provides direct electrical equivalence at the 400 V rating with superior ESR performance (210 mOhm @ 100Hz versus 705 mOhm @ 120Hz). The extended lifetime of 5000 Hrs @ 105°C and wider operating temperature range (-40°C ~ 105°C) exceed the main part specifications. ROHS3 Compliance and REACH Unaffected status confirm regulatory alignment. Physical dimensions match exactly (37.00 mm height), ensuring seamless PCB integration. This substitute is optimal for applications where low ESR and extended service life are critical performance factors.

861221386021 (Würth Elektronik WCAP-AIE8 Series - Parametric Equivalent)

This part matches the electrical and thermal specifications of the main part exactly, with identical lifetime rating (3000 Hrs @ 85°C) and operating temperature range (-25°C ~ 85°C). Physical dimensions are identical, ensuring direct PCB compatibility. ROHS3 Compliance and REACH Unaffected status confirm regulatory compliance. This substitute provides a direct replacement option with equivalent performance characteristics and is suitable for applications where the original specifications are fully adequate.

All three substitute parts maintain the required 470 µF capacitance, ±20% tolerance, through-hole mounting, radial snap-in package configuration, and 10.00 mm lead spacing. Selection among these substitutes depends on application-specific requirements for voltage margin, thermal performance, ESR characteristics, and operational lifetime.

Frequently Asked Questions (FAQ)

Q1: Can ELHS451VSN471MA35S be used as a direct replacement for ESMM401VSN471MA35S?

A: Yes, ELHS451VSN471MA35S is electrically and mechanically compatible. The 450 V rating is backward-compatible with 400 V applications. The height difference of 0.50 mm (37.50 mm vs. 37.00 mm) must be verified for PCB clearance. The extended lifetime and wider temperature range provide performance enhancement.

Q2: What is the primary advantage of B43644B9477M000 over the main part?

A: B43644B9477M000 offers significantly lower ESR (210 mOhm @ 100Hz versus 705 mOhm @ 120Hz), extended lifetime (5000 Hrs @ 105°C versus 3000 Hrs @ 85°C), and wider operating temperature range (-40°C ~ 105°C versus -25°C ~ 85°C). These characteristics reduce heat generation and improve reliability in high-ripple-current applications.

Q3: Is 861221386021 suitable for direct replacement without design modification?

A: Yes, 861221386021 provides parametric equivalence with identical electrical specifications, lifetime rating, and physical dimensions. No PCB layout modifications are required. This part is suitable for applications where the original ESMM401VSN471MA35S specifications fully meet design requirements.

Q4: Are all substitute parts RoHS compliant?

A: Yes, all substitute parts are RoHS Compliant or ROHS3 Compliant, meeting current regulatory requirements for hazardous substance restrictions.

Q5: What is the significance of the different ripple current ratings among substitute parts?

A: Ripple current ratings indicate the maximum AC current the capacitor can safely handle at specified frequencies without exceeding temperature limits. Lower ripple current ratings require careful verification against application requirements. ELHS451VSN471MA35S shows lower ripple current (1.71 A @ 120 Hz) compared to the main part (2.54 A @ 120 Hz), necessitating application-specific validation.

Q6: Can these substitutes be used interchangeably in existing designs?

A: Mechanical and electrical compatibility is confirmed for all three substitutes. However, design validation is required for applications with specific ESR, ripple current, or thermal performance requirements. Height clearance must be verified for ELHS451VSN471MA35S due to the 0.50 mm increase.

Q7: What packaging formats are available for these substitute parts?

A: ELHS451VSN471MA35S is supplied in Bulk packaging. B43644B9477M000 is supplied in Bulk packaging. 861221386021 is supplied in Tray packaging. Packaging format selection depends on procurement volume and handling requirements.