B43540B5337M87 Equivalent & Substitute Parts

Part Overview

The B43540B5337M87 is a 330 µF, 450 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by EPCOS - TDK Electronics. This component is designed for general-purpose applications requiring stable capacitance and extended operational life at elevated temperatures. The part maintains active product status with 10,000-hour lifetime rating at 85°C.

Substitute parts become necessary when the primary part faces inventory constraints, supply chain disruptions, or when design flexibility permits selection from compatible alternatives within the same electrical and mechanical specifications.

Substiute Parts

B43540B5337M87

EPCOS - TDK ElectronicsIn Stock: 810B43540B5337M87 Datasheet

Current PartRFQ

B43501A5337M000

EPCOS - TDK ElectronicsIn Stock: 274015B43501A5337M000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the B43540B5337M87 is determined by strict equivalence across the following critical parameters:

• Capacitance value: 330 µF (exact match required)
• Rated voltage: 450 V (exact match required)
• Tolerance: ±20% (exact match required)
• Operating temperature range: -40°C to 85°C (exact match required)
• Lifetime rating: 10,000 hours at 85°C (exact match required)
• Package configuration: Radial, Can - Snap-In (exact match required)
• Mounting type: Through Hole (exact match required)
• Lead spacing: 10.00 mm (exact match required)
• Physical dimensions: 35.00 mm diameter (exact match required)
• Polarization: Polar (exact match required)

The B43501A5337M000 meets all substitution criteria. Variations in ESR (Equivalent Series Resistance), ripple current, and impedance are permissible within the scope of general-purpose applications, provided the core electrical and mechanical parameters remain identical.

Parameter Comparison

Engineering Selection Recommendations

The B43540B5337M87 maintains active product status and is the preferred selection for new designs. The B43501A5337M000 is classified as "Not For New Designs" and should be considered only when the primary part is unavailable.

Both parts satisfy ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for industrial and commercial applications. The mechanical and electrical compatibility between these parts is confirmed across all critical parameters.

Selection between these parts should be based on availability and supply chain requirements rather than technical performance differentiation, as both components meet identical functional specifications for general-purpose capacitor applications.

Frequently Asked Questions (FAQ)

Q: Can B43501A5337M000 be used as a direct replacement for B43540B5337M87?

A: Yes. Both parts share identical capacitance (330 µF), rated voltage (450 V), tolerance (±20%), operating temperature range (-40°C to 85°C), lifetime rating (10,000 hours at 85°C), and package configuration (Radial, Can - Snap-In). Mechanical compatibility is confirmed through matching lead spacing (10.00 mm), diameter (35.00 mm), and mounting type (Through Hole).

Q: What are the differences between these two parts?

A: The primary differences are ESR (290 mOhm vs. 400 mOhm at 100 Hz), ripple current (2.47 A vs. 2.1 A at 100 Hz), impedance (420 mOhms vs. 490 mOhms), and product status. B43540B5337M87 is active; B43501A5337M000 is not recommended for new designs.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited).

Q: What is the physical footprint compatibility?

A: Both parts are identical in physical footprint. Lead spacing is 10.00 mm, diameter is 35.00 mm, and maximum seated height is approximately 42 mm. PCB layout modifications are not required for substitution.

Q: Why is B43501A5337M000 marked "Not For New Designs"?

A: This designation indicates the part is in mature or declining production phase. New designs should prioritize B43540B5337M87 for long-term supply assurance and design continuity.