BFC237029104 Equivalent & Substitute Parts

Part Overview

The BFC237029104 is a 0.1 µF film capacitor manufactured by Vishay Beyschlag/Draloric/BC Components, designed for automotive applications requiring high reliability and long operational life. This radial polyester metallized capacitor operates across a temperature range of -55°C to 105°C and meets AEC-Q200 automotive qualification standards. The part is currently active in production with 872 units available in tape and reel packaging. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the allowed tolerance specifications for this product category.

Substiute Parts

BFC237029104

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 965BFC237029104 Datasheet

Current PartRFQ

BFC237021104

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 9622BFC237021104 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BFC237029104 is permissible when the following core electrical and mechanical parameters remain constant or within acceptable limits:

• Capacitance value: 0.1 µF (exact match required)
• Voltage rating: 100V DC minimum (equal or higher acceptable)
• Dielectric material: Polyester, Metallized (same material system)
• Mounting configuration: Through Hole Radial (same physical interface)
• Lead spacing: 0.200" (5.08mm) (exact match for PCB compatibility)
• Operating temperature range: -55°C to 105°C minimum (equal or wider range acceptable)
• Automotive compliance: AEC-Q200 (maintained for automotive applications)

The tolerance specification may vary within industry-standard ranges (±5% to ±10%) provided the application does not require the tighter tolerance of the original part. The BFC237021104 qualifies as a manufacturer-recommended substitute based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

Both the BFC237029104 and BFC237021104 maintain full compliance with AEC-Q200 automotive qualification standards and ROHS3 environmental requirements. The primary distinction between these parts is the capacitance tolerance specification: the main part carries ±5% tolerance while the substitute carries ±10% tolerance. Both parts are manufactured from the same MKT370 series using polyester metallized dielectric technology and are rated for identical voltage, temperature, and mechanical parameters.

Selection between these parts depends on circuit tolerance requirements. Applications requiring tighter capacitance accuracy should specify the BFC237029104. Applications where ±10% tolerance is acceptable may utilize the BFC237021104, which offers higher inventory availability (9526 units in bulk packaging versus 872 units in tape and reel for the main part).

Frequently Asked Questions (FAQ)

Q: Can BFC237021104 be used as a direct replacement for BFC237029104?

A: Yes, the BFC237021104 is electrically and mechanically compatible. Both parts share identical capacitance values, voltage ratings, dielectric materials, physical dimensions, lead spacing, and automotive certifications. The substitute part carries a wider tolerance specification (±10% versus ±5%).

Q: What is the difference in tolerance between these parts?

A: The BFC237029104 specifies ±5% capacitance tolerance, while the BFC237021104 specifies ±10% tolerance. This means the actual capacitance value of the substitute part may deviate further from the nominal 0.1 µF specification. Applications sensitive to capacitance accuracy should retain the original part specification.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.283" L x 0.098" W (7.20mm x 2.50mm) with a maximum seated height of 0.256" (6.50mm). Lead spacing is 0.200" (5.08mm) for both parts, ensuring identical PCB footprint compatibility.

Q: Do both parts meet automotive standards?

A: Yes. Both the BFC237029104 and BFC237021104 carry AEC-Q200 automotive qualification ratings and are ROHS3 compliant. They are suitable for automotive applications requiring long-life reliability across the -55°C to 105°C operating temperature range.

Q: What is the difference in packaging?

A: The BFC237029104 is supplied in tape and reel (TR) packaging with 872 units in stock. The BFC237021104 is supplied in bulk packaging with 9526 units available. Both packaging formats are suitable for through-hole assembly; packaging selection depends on production volume and assembly process requirements.