B43508A5477M080 Equivalent & Substitute Parts

Part Overview

The B43508A5477M080 is a 470 µF, 450 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by EPCOS - TDK Electronics. This component is classified as Obsolete, indicating it is no longer in active production. The part features 260 mOhm equivalent series resistance at 100 Hz and a rated lifetime of 3000 hours at 105°C, suitable for general-purpose applications requiring high-voltage energy storage and filtering.

Due to its obsolete status, direct replacement with active production equivalents or upgraded alternatives is necessary for new designs and ongoing system support.

Key Parameters

Parameter	Value
Capacitance	470 µF
Voltage Rating	450 V
Tolerance	±20%
ESR @ 100 Hz	260 mOhm
Lifetime @ 105°C	3000 Hrs
Ripple Current @ 100 Hz	2 A
Lead Spacing	0.394" (10.00 mm)
Case Diameter	1.181" (30.00 mm)
Height	2.252" (57.20 mm)
Mounting Type	Through Hole
Package	Radial, Can - Snap-In
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the B43508A5477M080 is determined by strict equivalence in the following electrical and mechanical parameters:

Capacitance: 470 µF (exact match required)
Voltage Rating: 450 V (exact match required)
Tolerance: ±20% (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Case Diameter: 1.181" (30.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Package: Radial, Can - Snap-In (exact match required)

Substitute parts are grouped into three categories:

Direct Substitutes (Same Series B43508): Parts B43508A5477M000, B43508A5477M062, B43508A5477M2, B43508A5477M60, B43508A5477M67, and B43508A5477M7 maintain identical electrical specifications (470 µF, 450 V, ±20%, 260 mOhm ESR, 3000 Hrs @ 105°C) and mechanical dimensions. These differ only in packaging designation or product status.

Parametric Equivalents (Same Series B43508): Parts B43508A5477M82 and B43508A5477M87 provide identical electrical and mechanical performance to the main part, with minor height variations (2.252" vs. 2.244" seated height) that remain within functional tolerance for snap-in mounting applications.

Upgraded Alternative (Series B43644): Part B43644A5477M000 offers improved performance with reduced ESR (220 mOhm vs. 260 mOhm) and extended lifetime (5000 Hrs vs. 3000 Hrs @ 105°C), maintaining all other electrical and mechanical specifications. This part is classified as "Not For New Designs" but provides superior reliability for retrofit applications.

Parameter Comparison

Part Number	Series	Capacitance	Voltage	Tolerance	ESR @ 100 Hz	Lifetime @ 105°C	Ripple Current @ 100 Hz	Lead Spacing	Height (Max)	Product Status	Inventory
B43508A5477M080	B43508	470 µF	450 V	±20%	260 mOhm	3000 Hrs	2 A	10.00 mm	57.20 mm	Obsolete	1,062 Pcs
B43508A5477M000	B43508	470 µF	450 V	±20%	260 mOhm	3000 Hrs	2 A	10.00 mm	57.00 mm	Not For New Designs	273,782 Pcs
B43508A5477M062	B43508	470 µF	450 V	±20%	260 mOhm	3000 Hrs	2 A	10.00 mm	57.00 mm	Active	273,782 Pcs
B43508A5477M2	B43508	470 µF	450 V	±20%	260 mOhm	3000 Hrs	2 A	10.00 mm	57.00 mm	Active	273,982 Pcs
B43508A5477M60	B43508	470 µF	450 V	±20%	260 mOhm	3000 Hrs	2 A	10.00 mm	57.00 mm	Active	273,882 Pcs
B43508A5477M67	B43508	470 µF	450 V	±20%	260 mOhm	3000 Hrs	2 A	10.00 mm	57.00 mm	Active	273,982 Pcs
B43508A5477M7	B43508	470 µF	450 V	±20%	260 mOhm	3000 Hrs	2 A	10.00 mm	57.00 mm	Active	274,082 Pcs
B43508A5477M82	B43508	470 µF	450 V	±20%	260 mOhm	3000 Hrs	2 A	10.00 mm	57.20 mm	Active	709 Pcs
B43508A5477M87	B43508	470 µF	450 V	±20%	260 mOhm	3000 Hrs	2 A	10.00 mm	57.20 mm	Active	984 Pcs
B43644A5477M000	B43644	470 µF	450 V	±20%	220 mOhm	5000 Hrs	2.26 A	10.00 mm	57.00 mm	Not For New Designs	274,082 Pcs

Engineering Selection Recommendations

For Direct Replacement (Same Performance): Select B43508A5477M062, B43508A5477M2, B43508A5477M60, B43508A5477M67, or B43508A5477M7. All are active production parts with identical electrical specifications and mechanical compatibility. B43508A5477M062 is recommended as the primary choice due to active product status and highest inventory availability.

For Parametric Equivalence: B43508A5477M82 and B43508A5477M87 provide identical performance with active product status. These are suitable where inventory of primary direct substitutes is constrained.

For Upgraded Performance: B43644A5477M000 offers superior reliability through reduced ESR (220 mOhm vs. 260 mOhm) and extended lifetime (5000 Hrs vs. 3000 Hrs @ 105°C). Although classified as "Not For New Designs," this part is appropriate for retrofit applications where enhanced performance is beneficial. Mechanical and electrical compatibility is maintained.

Compliance: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can B43508A5477M062 be used as a direct replacement for B43508A5477M080?

A: Yes. Both parts share identical capacitance (470 µF), voltage rating (450 V), tolerance (±20%), ESR (260 mOhm @ 100 Hz), lifetime (3000 Hrs @ 105°C), and mechanical dimensions. The only difference is product status; B43508A5477M062 is active production while B43508A5477M080 is obsolete.

Q: What is the difference between the B43508 series substitutes?

A: All B43508 series parts listed (M000, M062, M2, M60, M67, M7, M82, M87) maintain identical electrical performance and core mechanical specifications. Differences exist only in packaging designation, product status, and minor seated height variations (57.00 mm vs. 57.20 mm), which do not affect snap-in mounting compatibility.

Q: Should I use B43644A5477M000 instead of the B43508 substitutes?

A: B43644A5477M000 is an upgraded alternative offering lower ESR (220 mOhm vs. 260 mOhm) and longer lifetime (5000 Hrs vs. 3000 Hrs @ 105°C). Use this part if enhanced performance and reliability are required. All other electrical and mechanical parameters remain compatible with the original specification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the original B43508A5477M080.

Q: What is the significance of the height difference between 57.00 mm and 57.20 mm?

A: Both heights are within the functional tolerance for snap-in mounting applications. The 0.20 mm difference does not affect mechanical fit or electrical performance in standard through-hole snap-in socket designs.

Q: Which substitute part has the best availability?

A: B43508A5477M000 and B43508A5477M062 both have inventory exceeding 273,000 pieces, providing the highest availability among all substitutes.

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