BFC237035103 Film Capacitor 10000pF 250VDC Equivalent & Substitute Parts

Part Overview

The BFC237035103 is a 10000 pF polyester metallized radial film capacitor rated for 250VDC operation, manufactured by Vishay Beyschlag/Draloric/BC Components in the MKT370 series. This component is actively produced and widely used in automotive applications requiring AEC-Q200 compliance. Substitute parts are identified when equivalent electrical performance can be maintained within the specified tolerance, voltage rating, and mechanical constraints of the original design.

Key Parameters

Parameter	Value
Capacitance	10000 pF
Tolerance	±10%
Voltage Rating (DC)	250V
Voltage Rating (AC)	160V
Dielectric Material	Polyester, Metallized
Operating Temperature Range	-55°C to 105°C
Mounting Type	Through Hole
Package Type	Radial
Lead Spacing	0.200" (5.08mm)
Size	0.283" L x 0.098" W (7.20mm x 2.50mm)
Height (Seated Max)	0.256" (6.50mm)
Termination	PC Pins
Compliance	AEC-Q200, ROHS3, REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the BFC237035103 is determined by strict equivalence in the following parameters:

Capacitance value: 10000 pF (exact match required)
Voltage rating: Minimum 250VDC (equal or higher acceptable)
Tolerance: ±10% or tighter (±5% acceptable as upgrade)
Dielectric: Polyester metallized composition
Mounting: Through hole radial configuration
Lead spacing: 5.00mm to 5.08mm (mechanical compatibility)
Physical dimensions: Compatible with 6.50mm seated height maximum
Compliance: AEC-Q200 automotive rating maintained

Substitute parts are grouped into three categories: direct upgrades (improved tolerance or voltage rating with identical footprint), manufacturer-recommended alternatives (same electrical specs, different series), and cross-manufacturer equivalents (EPCOS/TDK alternatives meeting all electrical and mechanical requirements).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage DC	Voltage AC	Lead Spacing	Size (L x W)	Height Max	Packaging	Status
BFC237035103	Vishay	10000 pF	±10%	250V	160V	5.08mm	7.20 x 2.50mm	6.50mm	Cut Tape	Active
BFC237042103	Vishay	10000 pF	±5%	250V	160V	5.08mm	7.20 x 2.50mm	6.50mm	Bulk	Active
BFC237051103	Vishay	10000 pF	±10%	400V	220V	5.08mm	7.20 x 4.60mm	8.00mm	Bulk	Active
BFC237141103	Vishay	10000 pF	±10%	250V	160V	7.62mm	10.00 x 2.50mm	6.50mm	Bulk	Active
B32529C3103J000	EPCOS/TDK	10000 pF	±5%	250V	160V	5.00mm	7.30 x 2.50mm	6.50mm	Bulk	Active
B32529C3103K000	EPCOS/TDK	10000 pF	±10%	250V	160V	5.00mm	7.30 x 2.50mm	6.50mm	Bulk	Active
B32529C3103K189	EPCOS/TDK	10000 pF	±10%	250V	160V	5.00mm	7.30 x 2.50mm	6.50mm	Cut Tape	Active
B32529C3103K289	EPCOS/TDK	10000 pF	±10%	250V	160V	5.00mm	7.30 x 2.50mm	6.50mm	Cut Tape	Active
B32529C6103J	EPCOS/TDK	10000 pF	±5%	400V	200V	5.00mm	7.20 x 3.00mm	6.50mm	Bulk	Not For New Designs
B32529C6103J289	EPCOS/TDK	10000 pF	±5%	400V	200V	5.00mm	7.20 x 3.00mm	6.50mm	Cut Tape	Not For New Designs
B32529C6103K	EPCOS/TDK	10000 pF	±10%	400V	200V	5.00mm	7.20 x 3.00mm	6.50mm	Bulk	Not For New Designs

Engineering Selection Recommendations

Direct Substitutes (Same Footprint, Identical Electrical Performance)

BFC237042103 and B32529C3103K000/K189/K289 are direct substitutes maintaining the original 250VDC rating and 160VAC specification. BFC237042103 offers improved ±5% tolerance while retaining Vishay manufacturing. The EPCOS B32529C3103K series provides equivalent performance with AEC-Q200 compliance and extended operating temperature range to 125°C. Lead spacing of 5.00mm (EPCOS) versus 5.08mm (Vishay) is mechanically compatible within standard PCB tolerances.

Voltage-Upgraded Substitutes (Higher Voltage Rating)

BFC237051103 and B32529C6103J/K series provide 400VDC rating, suitable for applications requiring higher voltage margin. These parts maintain 10000 pF capacitance and ±10% tolerance but feature increased physical dimensions (height 8.00mm for Vishay, width 3.00-4.60mm). Mechanical compatibility must be verified against PCB layout constraints. EPCOS B32529C6103 series carries "Not For New Designs" status; use only for legacy system maintenance.

Alternative Lead Spacing (BFC237141103)

BFC237141103 maintains identical electrical specifications but features 7.62mm lead spacing and 10.00mm length. This part is suitable only for designs with compatible PCB hole patterns and is classified as General Purpose rather than Automotive-specific.

Compliance and Status Considerations

All Vishay MKT370/MKT371 series parts and EPCOS B32529C3103 series maintain active production status and full AEC-Q200 automotive compliance. EPCOS B32529C6103 series (400V variants) are marked "Not For New Designs" and should be reserved for replacement applications only. All listed substitutes are ROHS3 compliant and REACH unaffected.

Frequently Asked Questions (FAQ)

Q: Can BFC237042103 replace BFC237035103 directly?

A: Yes. BFC237042103 is a direct substitute with identical voltage rating (250VDC), capacitance (10000 pF), and physical dimensions. The improved ±5% tolerance is a performance upgrade. Packaging differs (Bulk vs. Cut Tape), but electrical and mechanical compatibility is complete.

Q: Are EPCOS B32529C3103K parts compatible with the original BFC237035103?

A: Yes, with minor mechanical consideration. Lead spacing is 5.00mm versus 5.08mm on the original—a 0.08mm difference within standard PCB manufacturing tolerance. Physical dimensions are nearly identical (7.30mm vs. 7.20mm length). All electrical parameters match exactly. AEC-Q200 compliance is maintained.

Q: Can I use BFC237051103 (400V) in place of BFC237035103 (250V)?

A: Yes, electrically. The 400VDC rating provides higher voltage margin. However, physical dimensions increase: height becomes 8.00mm (vs. 6.50mm) and width becomes 4.60mm (vs. 2.50mm). PCB layout compatibility must be verified before substitution.

Q: What is the difference between B32529C6103J and B32529C6103K?

A: Both are 10000 pF, 400VDC EPCOS parts with identical physical dimensions. B32529C6103J has ±5% tolerance; B32529C6103K has ±10% tolerance. Both carry "Not For New Designs" status and should be used only for legacy system replacement.

Q: Why do some parts show "Not For New Designs" status?

A: EPCOS B32529C6103 series (400V variants) are legacy products. Vishay and EPCOS actively recommend their newer series for new designs. These parts remain available for maintenance and replacement of existing equipment but should not be specified for new product development.

Q: Does lead spacing affect PCB compatibility?

A: Lead spacing differences (5.00mm vs. 5.08mm) are within standard PCB manufacturing tolerance and do not prevent substitution. However, physical length differences (7.20mm vs. 10.00mm for BFC237141103) may affect board layout. Verify hole pattern compatibility before substitution.

Q: Are all listed parts AEC-Q200 compliant?

A: Vishay MKT370/MKT371 and EPCOS B32529C3103 series are AEC-Q200 compliant. EPCOS B32529C6103 series do not list AEC-Q200 rating. For automotive applications, use only AEC-Q200 qualified parts unless legacy system maintenance is required.

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