B43858C4476M Equivalent & Substitute Parts

Part Overview

The B43858C4476M is a 47 µF, 350 V aluminum electrolytic capacitor in radial, can package manufactured by EPCOS - TDK Electronics. This component is rated for 5000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part is currently active in production and ROHS3 compliant.

Substitute parts are identified based on matching capacitance (47 µF), tolerance (±20%), polarization (polar), package type (radial, can), lead spacing (0.295" / 7.50mm), and mounting configuration (through-hole). Voltage rating, lifetime rating, and ripple current specifications may vary within acceptable parameters for equivalent functionality.

Substiute Parts

B43858C4476M

EPCOS - TDK ElectronicsIn Stock: 1060B43858C4476M Datasheet

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EEU-EE2W470

Panasonic Electronic ComponentsIn Stock: 7403EEU-EE2W470 Datasheet

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UCA2G470MHD

NichiconIn Stock: 952UCA2G470MHD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Equivalent and substitute parts for the B43858C4476M are determined by the following core parameters:

• Capacitance: Must be 47 µF (exact match)
• Tolerance: Must be ±20% (exact match)
• Polarization: Must be polar (exact match)
• Package Type: Must be radial, can (exact match)
• Lead Spacing: Must be 0.295" (7.50mm) (exact match)
• Mounting Type: Must be through-hole (exact match)
• Operating Temperature Range: Must support -25°C ~ 105°C minimum
• Voltage Rating: May be equal to or greater than 350 V
• Lifetime Rating: May be equal to or greater than 5000 Hrs @ 105°C

The identified substitute parts meet all core matching criteria while offering equal or improved voltage and lifetime ratings.

Parameter Comparison

Engineering Selection Recommendations

EEU-EE2W470 (Panasonic Electronic Components) is the preferred substitute. This part is currently active in production, ROHS3 compliant, and offers improved specifications: 450 V rated voltage (28.6% higher than the main part) and 10000 Hrs @ 105°C lifetime (100% improvement). All mechanical and electrical core parameters match the B43858C4476M exactly. This part provides enhanced reliability margins for the same application.

UCA2G470MHD (Nichicon) meets all core substitution criteria with 400 V rated voltage (14.3% higher) and 12000 Hrs @ 105°C lifetime (140% improvement). However, this part is marked as obsolete and should be considered only when EEU-EE2W470 is unavailable. The height dimension is 0.020" (0.50mm) shorter than the main part, which may require PCB layout verification in space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can EEU-EE2W470 be used as a direct replacement for B43858C4476M?

A: Yes. Both parts share identical capacitance (47 µF), tolerance (±20%), lead spacing (0.295" / 7.50mm), case dimensions (0.630" Dia), and mounting type (through-hole radial). The EEU-EE2W470 offers higher voltage (450 V vs. 350 V) and longer lifetime (10000 Hrs vs. 5000 Hrs @ 105°C), making it functionally equivalent and superior for the same application.

Q: What is the difference between the two substitute parts?

A: Both EEU-EE2W470 and UCA2G470MHD meet core substitution criteria. EEU-EE2W470 is currently active in production, while UCA2G470MHD is obsolete. EEU-EE2W470 has a slightly higher voltage rating (450 V vs. 400 V). UCA2G470MHD has a marginally shorter seated height (1.299" vs. 1.319"), which may affect PCB clearance in some designs.

Q: Are there any mechanical compatibility concerns?

A: All three parts use identical lead spacing (0.295" / 7.50mm) and radial, can package configuration. The UCA2G470MHD is 0.020" (0.50mm) shorter in seated height. Verify PCB layout clearance if height is a constraint in your application.

Q: Do all parts meet the same compliance standards?

A: Yes. B43858C4476M, EEU-EE2W470, and UCA2G470MHD are all ROHS3 compliant and REACH unaffected. All parts carry ECCN EAR99 classification and HTSUS code 8532.22.0020.

Q: Which part should I select if B43858C4476M is unavailable?

A: Select EEU-EE2W470 as the primary alternative. It is active in production and offers improved electrical specifications. UCA2G470MHD is a secondary option only if EEU-EE2W470 is unavailable, noting its obsolete status.