B43858C2107M Equivalent & Substitute Parts

Part Overview

The B43858C2107M is a 100 µF, 200 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 with ROHS3 compliance and REACH unaffected status.

Substitute parts are identified when equivalent electrical and mechanical parameters allow direct replacement in circuit applications while maintaining or improving performance characteristics.

Substiute Parts

B43858C2107M

EPCOS - TDK ElectronicsIn Stock: 773B43858C2107M Datasheet

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UCS2E101MHD

NichiconIn Stock: 4009UCS2E101MHD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The UCS2E101MHD from Nichicon qualifies as a substitute based on the following alignment of critical parameters:

• Capacitance: 100 µF (identical)
• Tolerance: ±20% (identical)
• Operating Temperature Range: -40°C ~ 105°C (identical)
• Lead Spacing: 0.295" (7.50mm) (identical)
• Size / Dimension: 0.630" Dia (16.00mm) (identical)
• Mounting Type: Through Hole (identical)
• Package / Case: Radial, Can (identical)
• RoHS Status: ROHS3 Compliant (identical)

The substitute part exceeds the main part in voltage rating (250 V vs. 200 V) and thermal lifetime (10000 Hrs @ 105°C vs. 5000 Hrs @ 105°C), providing enhanced performance margins within the same physical footprint and electrical tolerance class.

Parameter Comparison

Engineering Selection Recommendations

Both the B43858C2107M and UCS2E101MHD are active production parts with ROHS3 compliance and REACH unaffected status. The UCS2E101MHD provides higher voltage rating and extended thermal lifetime within identical physical and electrical tolerance specifications. Selection between these parts depends on circuit voltage requirements and thermal cycling expectations. The substitute part is suitable for applications where the original part is specified, provided the circuit design accommodates the higher voltage rating.

Frequently Asked Questions (FAQ)

Q: Can the UCS2E101MHD replace the B43858C2107M in existing designs?

A: Yes. Both parts share identical capacitance (100 µF), tolerance (±20%), operating temperature range (-40°C ~ 105°C), lead spacing (0.295"), can diameter (0.630"), and through-hole mounting configuration. The substitute part's higher voltage rating (250 V) and extended lifetime (10000 Hrs @ 105°C) do not create compatibility issues in circuits designed for the original 200 V specification.

Q: Are there physical footprint differences?

A: The parts are mechanically compatible. Both use 0.295" (7.50mm) lead spacing and 0.630" (16.00mm) diameter cans. The UCS2E101MHD seated height is 1.043" (26.50mm) compared to 1.063" (27.00mm) for the B43858C2107M, a 0.020" difference that does not affect PCB layout or mounting clearance.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory requirements.

Q: What is the ripple current difference?

A: The UCS2E101MHD supports 1.53 A @ 100 kHz compared to 1.25 A @ 100 kHz for the B43858C2107M. This higher ripple current capability provides additional thermal margin in high-frequency applications.