B43501F2188M80 Equivalent & Substitute Parts

Part Overview

The B43501F2188M80 is a 1800 µF, 200 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by EPCOS - TDK Electronics. This component is designed for general purpose applications requiring high capacitance density with extended operational life. The part is currently in active production status with 273,782 units available in inventory.

Substitute parts become necessary when the primary part reaches end-of-life status, experiences supply constraints, or when design revisions require alternative component series that maintain electrical and mechanical compatibility within the same application requirements.

Substiute Parts

B43501F2188M80

EPCOS - TDK ElectronicsIn Stock: 273859B43501F2188M80 Datasheet

Current PartRFQ

B43540A2188M000

EPCOS - TDK ElectronicsIn Stock: 1129B43540A2188M000 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the B43501F2188M80 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match Exactly):

• Capacitance: 1800 µF
• Voltage Rating: 200 V
• Tolerance: ±20%
• Operating Temperature Range: -40°C to 85°C
• Lifetime: 10000 Hrs @ 85°C
• Polarization: Polar
• Mounting Type: Through Hole
• Package Type: Radial, Can - Snap-In
• Lead Spacing: 10.00 mm
• Physical Dimensions: 35.00 mm diameter, 47.00 mm height

Allowable Variation Parameters:

• ESR @ 100Hz: May vary within acceptable range (50-55 mOhm)
• Ripple Current @ 100Hz: May vary based on ESR differences
• Impedance: May vary proportionally with ESR changes
• Product Status: Active or Not For New Designs acceptable
• Series Designation: May differ (B43501, B43540, B43601)

The substitute part B43540A2188M000 meets all critical parameters while demonstrating improved electrical performance through lower ESR (50 mOhm vs. 55 mOhm) and higher ripple current capability (5.3 A vs. 4.75 A).

Parameter Comparison

Engineering Selection Recommendations

B43501F2188M80 (Primary Selection): Select this part for new designs and applications where component availability and active production status are required. The part maintains full ROHS3 compliance and REACH unaffected status. Current inventory of 273,782 units supports production requirements.

B43540A2188M000 (Substitute Selection): This part is suitable for replacement in existing designs or legacy system maintenance. Although marked as "Not For New Designs," it demonstrates superior electrical performance with 50 mOhm ESR compared to the primary part's 55 mOhm ESR, resulting in 11.6% lower impedance and 11.6% higher ripple current capability. All mechanical, thermal, and compliance parameters remain identical. Limited inventory of 1,028 units restricts this option to low-volume applications or emergency substitution scenarios.

Both parts maintain identical physical footprints, thermal ratings, and regulatory compliance, ensuring direct PCB compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can B43540A2188M000 be used as a direct replacement for B43501F2188M80 on existing PCBs?

A: Yes. Both parts share identical lead spacing (10.00 mm), physical dimensions (35.00 mm diameter, 47.00 mm height), mounting type (through hole), and package configuration (radial, can snap-in). No PCB modifications are required.

Q: What is the significance of the lower ESR in the substitute part?

A: The B43540A2188M000 exhibits 50 mOhm ESR versus 55 mOhm in the B43501F2188M80. Lower ESR reduces heat generation and improves ripple current handling capability (5.3 A vs. 4.75 A at 100 Hz). This represents improved electrical performance within the same voltage and capacitance rating.

Q: Why is B43540A2188M000 marked "Not For New Designs"?

A: This designation indicates the part is in mature or declining production phase. While fully functional and compliant, EPCOS - TDK Electronics recommends the B43501F2188M80 for new product development. The substitute remains suitable for maintenance, repair, and legacy system support.

Q: Are there compliance differences between these parts?

A: No. Both parts maintain identical RoHS3 compliance, REACH unaffected status, MSL rating of 1 (unlimited), and ECCN/HTSUS classifications. Regulatory and environmental compliance is equivalent.

Q: What thermal characteristics apply to both parts?

A: Both parts operate across -40°C to 85°C with 10,000 hour lifetime rating at 85°C. Thermal performance and derating curves are equivalent.

Q: How do the packaging options differ?

A: B43501F2188M80 is supplied in standard packaging, while B43540A2188M000 is supplied in bulk packaging. This affects order quantities and handling but does not impact component performance or compatibility.