B41002A4476M Equivalent & Substitute Parts

Part Overview

The B41002A4476M is a 47 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by EPCOS - TDK Electronics. This component is rated for 1000 hours at 85°C and is designed for general-purpose applications requiring through-hole mounting. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring compatible specifications.

Substiute Parts

B41002A4476M

EPCOS - TDK ElectronicsIn Stock: 880B41002A4476M Datasheet

Current PartRFQ

ECE-A1CKS470

Panasonic Electronic ComponentsIn Stock: 961ECE-A1CKS470 Datasheet

DirectRFQ

16MH747MEFC6.3X7

RubyconIn Stock: 409316MH747MEFC6.3X7 Datasheet

UpgradeRFQ

16ZLG47MEFC6.3X7

RubyconIn Stock: 393716ZLG47MEFC6.3X7 Datasheet

UpgradeRFQ

25ZLG47MEFC6.3X7

RubyconIn Stock: 3375125ZLG47MEFC6.3X7 Datasheet

UpgradeRFQ

476PUM025M

Cornell Dubilier / Illinois CapacitorIn Stock: 782476PUM025M Datasheet

UpgradeRFQ

476RSS016M

Cornell Dubilier / Illinois CapacitorIn Stock: 904476RSS016M Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the B41002A4476M is determined by the following critical parameters:

• Capacitance: 47 µF (exact match required)
• Voltage Rating: 16 V minimum (higher voltage ratings are acceptable as upgrades)
• Tolerance: ±20% (standard tolerance for this category)
• Polarization: Polar (electrolytic capacitor type)
• Mounting Type: Through Hole (radial, can package)
• Physical Dimensions: Lead spacing 0.098" (2.50mm), diameter 0.248" (6.30mm), height up to 0.315" (8.00mm)
• Operating Temperature: -40°C ~ 85°C minimum
• RoHS Compliance: ROHS3 Compliant

Substitute parts are grouped into three categories:

Direct Equivalent: ECE-A1CKS470 (Panasonic) matches all critical parameters with identical voltage rating and physical dimensions.

Upgrade Parts: 16MH747MEFC6.3X7, 16ZLG47MEFC6.3X7 (Rubycon) provide enhanced operating temperature range (-40°C ~ 105°C) and improved ripple current performance while maintaining 16 V rating and identical physical footprint.

Voltage Upgrade Parts: 25ZLG47MEFC6.3X7 (Rubycon), 476PUM025M (Cornell Dubilier) offer 25 V rating with same capacitance and physical dimensions, suitable for applications with higher voltage margin requirements.

Parametric Equivalent: 476RSS016M (Cornell Dubilier) maintains exact voltage and capacitance specifications with identical physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Pin-Compatible, Voltage-Matched): ECE-A1CKS470 (Panasonic) is the primary direct equivalent. This part maintains identical electrical specifications and physical dimensions while offering active product status. Note that the seated height is 0.236" (6.00mm) versus the original 0.315" (8.00mm), which may affect PCB layout in space-constrained applications. All parts are ROHS3 compliant.

For Enhanced Thermal Performance: 16MH747MEFC6.3X7 and 16ZLG47MEFC6.3X7 (Rubycon) extend the operating temperature range to 105°C and provide superior ripple current handling. These upgrades are suitable for applications requiring improved thermal margin or higher frequency ripple current performance. Both maintain the 16 V rating and identical physical footprint.

For Increased Voltage Margin: 25ZLG47MEFC6.3X7 (Rubycon) and 476PUM025M (Cornell Dubilier) provide 25 V rating with the same 47 µF capacitance. The 476PUM025M offers extended lifetime (2000 hours at 85°C) compared to the original 1000 hours. These are appropriate for designs requiring higher voltage headroom or extended operational life.

For Parametric Equivalence: 476RSS016M (Cornell Dubilier) maintains exact voltage and capacitance specifications with active product status and extended ripple current performance at high frequencies (112 mA @ 100 kHz).

Frequently Asked Questions (FAQ)

Q: Can I use a 25 V rated capacitor in place of a 16 V capacitor? A: Yes. Higher voltage ratings are backward compatible in applications designed for lower voltages. The 25ZLG47MEFC6.3X7 and 476PUM025M both provide 25 V rating with identical capacitance and physical dimensions, making them suitable upgrades for applications requiring additional voltage margin.

Q: What is the difference between the Rubycon ZLG and MH7 series? A: Both series maintain identical voltage (16 V) and capacitance (47 µF) specifications with the same physical footprint. The ZLG series (16ZLG47MEFC6.3X7) provides significantly higher ripple current performance at high frequencies (480 mA @ 100 kHz) compared to the MH7 series (105 mA @ 10 kHz), making it suitable for applications with demanding AC ripple requirements.

Q: Does the height difference of ECE-A1CKS470 affect compatibility? A: The ECE-A1CKS470 has a seated height of 0.236" (6.00mm) compared to the original 0.315" (8.00mm). This shorter profile is mechanically compatible with most PCB layouts designed for the original part. Verify clearance in your specific application, particularly if components are mounted on both sides of the board or if height-constrained enclosures are used.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the original B41002A4476M.

Q: Which substitute offers the longest operational life? A: The 476PUM025M (Cornell Dubilier) provides 2000 hours at 85°C, compared to 1000 hours for most other options. This extended lifetime is combined with a 25 V rating, making it suitable for applications requiring both enhanced durability and voltage margin.

Q: Can I use parts with higher operating temperature ranges as direct replacements? A: Yes. The 16MH747MEFC6.3X7 and 16ZLG47MEFC6.3X7 extend the operating range to 105°C while maintaining all other critical specifications. These are suitable direct replacements for applications operating within the original -40°C to 85°C range, with the added benefit of thermal headroom for higher ambient conditions.