BFC237045472 Equivalent & Substitute Parts

Part Overview

The BFC237045472 is a 4700 pF film capacitor manufactured by Vishay Beyschlag/Draloric/BC Components, designed for automotive applications requiring high reliability and long-term stability. This radial through-hole component 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 robust inventory availability. Substitute parts are identified to address supply chain requirements, inventory optimization, or application-specific voltage rating needs while maintaining core electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	4700 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 / Case	Radial
Lead Spacing	0.200" (5.08mm)
Series	MKT370
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the BFC237045472 is determined by the following criteria:

Primary Substitutes (Parametric Equivalents): Parts maintaining identical capacitance (4700 pF), tolerance (±10%), dielectric material (Polyester, Metallized), mounting type (Through Hole), package configuration (Radial), lead spacing (0.200"), operating temperature range (-55°C to 105°C), series designation (MKT370), and automotive qualification (AEC-Q200).

Voltage Rating Consideration: The main part operates at 250V DC / 160V AC. Substitute BFC237051472 operates at 400V DC / 220V AC, representing an uprated voltage variant within the same product family. This higher voltage rating maintains backward compatibility for applications requiring the 250V specification, as 400V-rated components can be used in lower voltage circuits.

Mechanical Compatibility: All identified substitutes share identical physical dimensions (0.283" L x 0.098" W / 7.20mm x 2.50mm), height (0.256" / 6.50mm), and lead spacing (0.200" / 5.08mm), ensuring direct PCB footprint compatibility.

Compliance & Status: All substitutes maintain active product status, AEC-Q200 automotive qualification, ROHS3 compliance, and identical termination specifications (PC Pins).

Parameter Comparison

Parameter	BFC237045472	BFC237041472	BFC237051472
Capacitance	4700 pF	4700 pF	4700 pF
Tolerance	±10%	±10%	±10%
Voltage Rating - DC	250V	250V	400V
Voltage Rating - AC	160V	160V	220V
Dielectric Material	Polyester, Metallized	Polyester, Metallized	Polyester, Metallized
Operating Temperature	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Radial	Radial	Radial
Lead Spacing	0.200" (5.08mm)	0.200" (5.08mm)	0.200" (5.08mm)
Series	MKT370	MKT370	MKT370
Automotive Rating	AEC-Q200	AEC-Q200	AEC-Q200
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active
Inventory (Pcs)	709	1427	1914

Engineering Selection Recommendations

BFC237041472: Direct parametric equivalent with identical electrical specifications (250V DC / 160V AC, 4700 pF, ±10% tolerance). Maintains all mechanical and compliance requirements. Selection is appropriate for applications where the 250V DC rating is specified and inventory availability is a consideration factor.

BFC237051472: Uprated voltage variant (400V DC / 220V AC) within the MKT370 series. Suitable for applications originally designed for 250V DC operation where higher voltage margin is beneficial or where supply chain requirements necessitate the 400V variant. All other electrical and mechanical parameters remain equivalent. Maintains AEC-Q200 automotive qualification and ROHS3 compliance.

All three parts are active products with established supply chains and meet automotive qualification requirements. Selection between BFC237045472, BFC237041472, and BFC237051472 is determined by voltage rating requirements and inventory availability rather than functional capability differences.

Frequently Asked Questions (FAQ)

Q: Can BFC237051472 (400V) be used in place of BFC237045472 (250V)?

A: Yes. The BFC237051472 operates at higher voltage ratings (400V DC / 220V AC) and maintains all other electrical parameters identical to the main part. Higher voltage-rated capacitors are suitable for applications specified at lower voltages. Physical dimensions and lead spacing are identical, ensuring direct PCB compatibility.

Q: Are all three parts mechanically interchangeable?

A: Yes. BFC237045472, BFC237041472, and BFC237051472 share identical physical dimensions (0.283" L x 0.098" W), height (0.256"), lead spacing (0.200"), and radial through-hole mounting configuration. Direct PCB footprint substitution is supported without layout modifications.

Q: What is the primary difference between BFC237041472 and BFC237051472?

A: Both maintain 4700 pF capacitance and ±10% tolerance. BFC237041472 operates at 250V DC / 160V AC, while BFC237051472 operates at 400V DC / 220V AC. The voltage rating difference is the only electrical distinction; all other parameters including dielectric material, temperature range, and series designation are identical.

Q: Do all substitutes maintain AEC-Q200 automotive qualification?

A: Yes. BFC237045472, BFC237041472, and BFC237051472 all carry AEC-Q200 automotive qualification and ROHS3 compliance status. All parts are active products suitable for automotive applications requiring long-term reliability.

Q: Is there a capacitance or tolerance difference between the three parts?

A: No. All three parts are specified at 4700 pF with ±10% tolerance. Capacitance and tolerance are identical across BFC237045472, BFC237041472, and BFC237051472.

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