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BFC237051682 Film Capacitor Equivalent & Substitute Parts
Part Overview
The BFC237051682 is a 6800 pF radial film capacitor manufactured by Vishay Beyschlag/Draloric/BC Components, part of the MKT370 series. This component is a polyester metallized film capacitor rated for 400V DC operation with ±10% tolerance, designed for through-hole mounting in automotive applications. The part maintains Active status with 955 units in current inventory.
Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and design optimization while maintaining electrical and mechanical compatibility within specified parameter ranges.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Capacitance | 6800 | pF |
| Tolerance | ±10% | — |
| Voltage Rating (DC) | 400 | V |
| Voltage Rating (AC) | 220 | V |
| Dielectric Material | Polyester, Metallized | — |
| Operating Temperature Range | -55 to +105 | °C |
| Mounting Type | Through Hole | — |
| Package Type | Radial | — |
| Lead Spacing | 5.08 | mm |
| Height (Seated Max) | 6.50 | mm |
| Termination | PC Pins | — |
| AEC-Q200 Rating | Yes | — |
| RoHS3 Compliance | Compliant | — |
Substitute Part Grouping Explanation
Substitute parts for the BFC237051682 are identified based on strict electrical and mechanical parameter compatibility. The substitution logic is governed by the following criteria:
Electrical Compatibility Requirements:
- Capacitance value must be 6800 pF
- Voltage rating (DC) must be equal to or greater than 400V
- Dielectric material must be polyester-based (metallized film)
- Operating temperature range must encompass or exceed -55°C to +105°C
- Tolerance must be equal to or tighter than ±10%
Mechanical Compatibility Requirements:
- Mounting type must be Through Hole
- Package type must be Radial
- Lead spacing must be compatible with 5.08 mm pitch (tolerance ±0.10 mm)
- Height (seated) must not exceed 6.50 mm
- Termination must be PC Pins
Compliance Requirements:
- AEC-Q200 automotive rating required
- RoHS3 compliance required
- REACH unaffected status required
Parts meeting all criteria are classified as direct substitutes. The identified substitute B32529C6682J000 satisfies all electrical, mechanical, and compliance parameters.
Parameter Comparison
| Parameter | BFC237051682 (Vishay) | B32529C6682J000 (EPCOS/TDK) | Compatibility |
|---|---|---|---|
| Capacitance | 6800 pF | 6800 pF | Identical |
| Tolerance | ±10% | ±5% | Compatible (tighter tolerance) |
| Voltage Rating (DC) | 400V | 400V | Identical |
| Voltage Rating (AC) | 220V | 200V | Compatible (main part rated higher) |
| Dielectric Material | Polyester, Metallized | Polyester (PET), Metallized - Stacked | Compatible (both polyester-based) |
| Operating Temperature Range | -55 to +105°C | -55 to +125°C | Compatible (substitute rated higher) |
| Mounting Type | Through Hole | Through Hole | Identical |
| Package Type | Radial | Radial | Identical |
| Lead Spacing | 5.08 mm | 5.00 mm | Compatible (within tolerance) |
| Height (Seated Max) | 6.50 mm | 6.50 mm | Identical |
| Termination | PC Pins | PC Pins | Identical |
| AEC-Q200 Rating | Yes | Yes | Identical |
| RoHS3 Compliance | Compliant | Compliant | Identical |
Engineering Selection Recommendations
BFC237051682 (Vishay Beyschlag/Draloric/BC Components):
- Primary selection for applications requiring ±10% tolerance specification
- Suitable for 220V AC rated circuits
- Active production status with established supply (955 units in stock)
- AEC-Q200 qualified for automotive applications
- RoHS3 compliant
B32529C6682J000 (EPCOS/TDK Electronics):
- Alternative selection offering tighter ±5% tolerance
- Extended operating temperature range to +125°C
- Higher inventory availability (97,664 units in stock)
- AEC-Q200 qualified for automotive applications
- RoHS3 compliant
- Suitable for applications where improved tolerance performance is beneficial
Both parts are Active status components with full automotive compliance. Selection between these parts depends on tolerance requirements and supply availability. The EPCOS/TDK part provides superior tolerance specification and thermal performance margin.
Frequently Asked Questions (FAQ)
Q: Can B32529C6682J000 directly replace BFC237051682 on existing PCBs?
A: Yes. Both parts share identical capacitance (6800 pF), voltage rating (400V DC), mounting type (Through Hole Radial), lead spacing (5.08 mm / 5.00 mm compatible), and height (6.50 mm max). PC board layouts designed for BFC237051682 accommodate B32529C6682J000 without modification.
Q: What is the significance of the tolerance difference (±10% vs ±5%)?
A: The BFC237051682 specifies ±10% tolerance, while B32529C6682J000 specifies ±5% tolerance. The ±5% tolerance of the substitute part is tighter, meaning capacitance values remain closer to the nominal 6800 pF specification. Applications requiring strict capacitance accuracy benefit from the substitute part's tighter tolerance.
Q: Are both parts suitable for automotive applications?
A: Yes. Both BFC237051682 and B32529C6682J000 carry AEC-Q200 automotive qualification ratings, confirming suitability for automotive-grade reliability and environmental stress testing requirements.
Q: What is the difference in operating temperature ranges?
A: BFC237051682 operates from -55°C to +105°C. B32529C6682J000 operates from -55°C to +125°C. The substitute part provides a 20°C higher upper temperature limit, offering additional thermal margin in high-temperature applications.
Q: Do both parts meet RoHS3 compliance requirements?
A: Yes. Both BFC237051682 and B32529C6682J000 are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.
Q: Is the 0.08 mm lead spacing difference (5.08 mm vs 5.00 mm) significant?
A: No. The 0.08 mm difference falls within standard PCB manufacturing tolerances and component lead spacing variations. Both parts are mechanically compatible with through-hole PCB layouts designed for 5.08 mm pitch radial capacitors.
Q: Which part should be selected for new designs?
A: For new designs, B32529C6682J000 is recommended due to tighter tolerance specification (±5%), extended temperature range (+125°C), and higher inventory availability. Both parts meet all automotive and compliance requirements.
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