B32632A7472K Equivalent & Substitute Parts

Part Overview

The B32632A7472K is a 4700 pF film capacitor manufactured by EPCOS - TDK Electronics, rated for 1.25 kV DC and 450 V AC operation. This radial polypropylene metallized capacitor is designed for DC link, DC filtering, and high pulse applications. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring similar electrical performance.

Substiute Parts

B32632A7472K

EPCOS - TDK ElectronicsIn Stock: 835B32632A7472K Datasheet

Current PartRFQ

B32682A7472K000

EPCOS - TDK ElectronicsIn Stock: 3404B32682A7472K000 Datasheet

DirectRFQ

B32652A1472J000

EPCOS - TDK ElectronicsIn Stock: 9940B32652A1472J000 Datasheet

UpgradeRFQ

B32652J1472J000

EPCOS - TDK ElectronicsIn Stock: 2979B32652J1472J000 Datasheet

UpgradeRFQ

B32672L8472J000

EPCOS - TDK ElectronicsIn Stock: 8499B32672L8472J000 Datasheet

UpgradeRFQ

R747I1470AA00J

KEMETIn Stock: 1015R747I1470AA00J Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the B32632A7472K is determined by the following critical parameters: capacitance value (4700 pF), dielectric material (polypropylene metallized), mounting type (through-hole radial), lead spacing (15.00mm), and voltage ratings. Substitute parts are grouped into two categories:

Direct Substitutes maintain identical or equivalent electrical specifications and physical form factors, allowing drop-in replacement without circuit redesign.

Upgrade Substitutes provide enhanced electrical performance (higher voltage ratings, improved tolerance, extended temperature range) while maintaining mechanical compatibility and the same capacitance value. These parts are suitable for applications where improved specifications provide system benefits.

The following parameters determine substitution validity:

• Capacitance: Must be 4700 pF
• Dielectric: Must be polypropylene metallized
• Mounting: Must be through-hole radial
• Lead Spacing: Must be 15.00mm
• Voltage Rating - DC: Must meet or exceed 1250V
• Voltage Rating - AC: Must meet or exceed 450V

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Drop-in Replacement):

B32682A7472K000 is a direct substitute from EPCOS - TDK Electronics. It maintains the same capacitance, tolerance, voltage ratings, and lead spacing as the B32632A7472K. The primary difference is an extended operating temperature range (-55°C ~ 110°C versus -55°C ~ 100°C) and slightly reduced physical dimensions. This part is active and ROHS3 compliant, making it suitable for immediate replacement in existing designs.

R747I1470AA00J is a direct substitute from KEMET. While it provides higher voltage ratings (2000V DC, 700V AC) and improved tolerance (±5%), it maintains mechanical compatibility with 15.00mm lead spacing and through-hole radial mounting. This part is active and ROHS3 compliant.

Upgrade Substitutes (Enhanced Performance):

B32652A1472J000 and B32652J1472J000 are upgrade options from EPCOS - TDK Electronics. Both provide higher DC voltage ratings (1600V) and improved tolerance (±5%). B32652J1472J000 additionally offers higher AC voltage rating (700V versus 500V). Both parts include AEC-Q200 automotive qualification and are active products with ROHS3 compliance.

B32672L8472J000 is an upgrade option from EPCOS - TDK Electronics providing the highest voltage rating (2000V DC, 700V AC) with ±5% tolerance and extended temperature range (-55°C ~ 110°C). This part is active and ROHS3 compliant.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can B32682A7472K000 be used as a direct replacement for B32632A7472K?

A: Yes. B32682A7472K000 maintains identical capacitance (4700 pF), tolerance (±10%), voltage ratings (1250V DC, 450V AC), and lead spacing (15.00mm). The extended temperature range and slightly smaller physical dimensions do not affect electrical compatibility in standard applications.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes maintain the same electrical specifications and physical form factor, allowing drop-in replacement without circuit modification. Upgrade substitutes provide enhanced voltage ratings, improved tolerance, or extended temperature ranges while maintaining mechanical compatibility. Upgrade substitutes are suitable when improved performance is beneficial to system reliability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original B32632A7472K.

Q: Can I use a 2000V rated capacitor (B32672L8472J000 or R747I1470AA00J) in place of the 1250V rated B32632A7472K?

A: Yes. Higher voltage-rated capacitors are electrically compatible in circuits designed for lower voltages. The 2000V rated parts provide additional safety margin and are suitable for applications requiring enhanced voltage headroom.

Q: What is the significance of the ±5% tolerance in upgrade parts compared to the ±10% tolerance of the original?

A: The ±5% tolerance in upgrade parts provides tighter capacitance accuracy, which is beneficial in precision filtering, timing, and resonant circuit applications where capacitance variation affects performance. The original ±10% tolerance is adequate for general-purpose DC filtering and pulse applications.

Q: Are there physical dimension differences between substitute parts?

A: Yes. While all parts maintain 15.00mm lead spacing for PCB compatibility, physical dimensions vary slightly. B32682A7472K000 has reduced length and height. B32652A1472J000 has reduced width. B32672L8472J000 has the smallest width and height. These differences do not affect electrical performance but may impact board layout in space-constrained applications.

Q: Which substitute should I select for new designs?

A: For new designs, B32652A1472J000 or B32652J1472J000 are recommended. Both provide improved tolerance (±5%), higher voltage ratings (1600V DC), AEC-Q200 automotive qualification, and active product status. These parts offer enhanced reliability and are suitable for automotive and industrial applications.