B41607A8118MS1 Equivalent & Substitute Parts

Part Overview

The B41607A8118MS1 is a 1200 µF, 63 V aluminum electrolytic capacitor manufactured by EPCOS - TDK Electronics from the B41607 series. This component is designed for automotive applications with a rated lifetime of 10,000 hours at 125°C and an equivalent series resistance of 38 mOhm at 100 Hz. The part is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new production requirements.

Substiute Parts

B41607A8118MS1

EPCOS - TDK ElectronicsIn Stock: 1119B41607A8118MS1 Datasheet

Current PartRFQ

B41607B8128MS1

EPCOS - TDK ElectronicsIn Stock: 918B41607B8128MS1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the B41607A8118MS1 is determined by strict equivalence across the following electrical and mechanical parameters:

• Capacitance value: 1200 µF (exact match required)
• Voltage rating: 63 V (exact match required)
• Tolerance: ±20% (exact match required)
• ESR: 38 mOhm @ 100 Hz (exact match required)
• Ripple current: 7.6 A @ 10 kHz (exact match required)
• Operating temperature range: -55°C to 125°C (exact match required)
• Polarization: Polar (exact match required)
• Mounting type: Through Hole (exact match required)
• Moisture sensitivity level: 1 (Unlimited) (exact match required)

The B41607B8128MS1 qualifies as a direct substitute based on matching all electrical parameters and mechanical form factor. The primary difference is the lifetime rating at temperature, which is specified at 105°C rather than 125°C, and active product status versus obsolete status.

Parameter Comparison

Engineering Selection Recommendations

The B41607B8128MS1 is the qualified substitute for the obsolete B41607A8118MS1. Both components are manufactured by EPCOS - TDK Electronics within the same B41607 series and share identical electrical specifications for capacitance, voltage rating, tolerance, ESR, and ripple current handling.

The B41607B8128MS1 carries active product status and standard export classification (EAR99), ensuring continued availability and regulatory compliance for new production and field replacement applications. The lifetime rating difference (105°C versus 125°C) does not affect substitution validity, as both components operate within the specified temperature range of -55°C to 125°C and maintain equivalent performance characteristics across automotive applications.

Frequently Asked Questions (FAQ)

Q: Can the B41607B8128MS1 directly replace the B41607A8118MS1 in existing designs?

A: Yes. Both components share identical electrical parameters including capacitance (1200 µF), voltage rating (63 V), ESR (38 mOhm @ 100 Hz), and ripple current (7.6 A @ 10 kHz). Through-hole mounting and physical dimensions are compatible. No circuit modifications are required.

Q: What is the significance of the lifetime rating difference?

A: The B41607A8118MS1 specifies 10,000 hours at 125°C, while the B41607B8128MS1 specifies 10,000 hours at 105°C. Both ratings apply to the same operating temperature range (-55°C to 125°C). The difference reflects manufacturer testing conditions and does not impact functional equivalence for automotive applications.

Q: Why is the original part marked obsolete?

A: The B41607A8118MS1 is classified as obsolete by the manufacturer. The B41607B8128MS1, as an active product from the same series with identical electrical specifications, is the designated replacement for continued system support and new production.

Q: Are there any compliance or certification differences?

A: The B41607B8128MS1 carries EAR99 export classification and REACH Unaffected status, providing standard regulatory compliance for automotive and industrial applications. The original part is marked OBSOLETE for export purposes.

Q: What are the physical dimensions of the substitute part?

A: The B41607B8128MS1 has a diameter of 0.984 inches (25.00 mm) and a maximum seated height of 1.654 inches (42.00 mm). These dimensions are consistent with standard through-hole aluminum electrolytic capacitor form factors.