B43508E2108M60 Equivalent & Substitute Parts

Part Overview

The B43508E2108M60 is a 1000 µF, 250 V aluminum electrolytic capacitor manufactured by EPCOS - TDK Electronics. This radial, can-style snap-in component is designed for general-purpose applications requiring stable capacitance and extended operational life. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when original stock becomes unavailable or when procurement lead times require alternative sourcing from qualified manufacturers meeting identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Capacitance	1000 µF
Voltage Rating	250 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Diameter	0.984" (25.00 mm)
Height (Max)	2.244" (57.00 mm)
Lifetime	3000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Mounting Type	Through Hole
Polarization	Polar
RoHS Status	RoHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the B43508E2108M60 is determined by strict equivalence across the following critical parameters:

Capacitance value: 1000 µF (exact match required)
Voltage rating: 250 V (exact match required)
Tolerance: ±20% (exact match required)
Package configuration: Radial, Can - Snap-In (exact match required)
Lead spacing: 0.394" (10.00 mm) (exact match required)
Physical dimensions: 0.984" diameter × 2.244" height maximum (exact match required)
Lifetime rating: 3000 Hrs @ 105°C (exact match required)
Operating temperature range: -40°C ~ 105°C (exact match required)
Mounting type: Through Hole (exact match required)
Compliance: RoHS3 Compliant (exact match required)

The substitute part 250MXG1000MEFCSN25X55 from Rubycon meets all specified electrical and mechanical parameters, enabling direct functional replacement in circuit applications.

Parameter Comparison

Parameter	B43508E2108M60 (EPCOS - TDK)	250MXG1000MEFCSN25X55 (Rubycon)
Capacitance	1000 µF	1000 µF
Voltage Rating	250 V	250 V
Tolerance	±20%	±20%
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)
Diameter	0.984" (25.00 mm)	0.984" (25.00 mm)
Height (Max)	2.244" (57.00 mm)	2.244" (57.00 mm)
Lifetime @ 105°C	3000 Hrs	3000 Hrs
Operating Temperature Range	-40°C ~ 105°C	-40°C ~ 105°C
Mounting Type	Through Hole	Through Hole
Polarization	Polar	Polar
RoHS Status	RoHS3 Compliant	RoHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both the B43508E2108M60 and 250MXG1000MEFCSN25X55 are active production components with full RoHS3 compliance and REACH unaffected status. Selection between these parts should be based on availability, procurement lead time, and inventory requirements. The Rubycon 250MXG1000MEFCSN25X55 offers significantly higher inventory availability (273,882 pieces in stock versus 827 pieces for the EPCOS part), making it suitable for high-volume production schedules. Both components satisfy identical electrical performance requirements and physical form factor constraints for through-hole PCB assembly applications.

Frequently Asked Questions (FAQ)

Q: Can the Rubycon 250MXG1000MEFCSN25X55 be used as a direct replacement for the EPCOS B43508E2108M60?

A: Yes. Both components share identical capacitance (1000 µF), voltage rating (250 V), tolerance (±20%), package configuration (Radial, Can - Snap-In), lead spacing (10.00 mm), physical dimensions (25.00 mm diameter × 57.00 mm height), lifetime rating (3000 Hrs @ 105°C), operating temperature range (-40°C ~ 105°C), and compliance certifications (RoHS3, REACH Unaffected). Direct PCB mounting compatibility is confirmed.

Q: Are there differences in ESR or ripple current specifications between these parts?

A: The B43508E2108M60 specifies 120 mOhm ESR @ 100 Hz and 2.4 A ripple current @ 100 Hz. The Rubycon part does not provide ESR specification but lists 2.87 A ripple current @ 120 Hz and 4.305 A @ 10 kHz. Both parts meet the 3000-hour lifetime requirement at 105°C. Application-specific ripple current demands should be evaluated against the provided specifications.

Q: What is the significance of the snap-in package configuration?

A: The snap-in package type indicates mechanical retention through spring-loaded terminals that secure the component to the PCB without requiring solder connections for mechanical support. This configuration is standard for both the EPCOS and Rubycon parts, ensuring identical mounting procedures and PCB footprint compatibility.

Q: Are both parts suitable for high-temperature applications?

A: Yes. Both components are rated for continuous operation across the -40°C ~ 105°C temperature range with a specified lifetime of 3000 hours at the maximum operating temperature of 105°C. This rating applies equally to both the B43508E2108M60 and 250MXG1000MEFCSN25X55.

Q: What compliance certifications apply to both substitute parts?

A: Both components are RoHS3 compliant and REACH unaffected. Both carry MSL rating 1 (Unlimited moisture sensitivity), indicating no moisture sensitivity restrictions during storage or handling. ECCN classification is EAR99 for both parts, and HTSUS code is 8532.22.0040.

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