125MABA03KHS Film Capacitor Equivalent & Substitute Parts

Part Overview

The 125MABA03KHS is a 1.2 µF film capacitor manufactured by Cornell Dubilier / Illinois Capacitor, rated for 500V DC operation with ±10% tolerance. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing production and maintenance applications. The capacitor utilizes polypropylene (PP) metallized dielectric technology in a radial through-hole configuration, suitable for motor run applications.

Key Parameters

Parameter	Value
Capacitance	1.2 µF
Tolerance	±10%
Voltage Rating - DC	500V
Voltage Rating - AC	250V
Dielectric Material	Polypropylene (PP), Metallized
Operating Temperature Range	-40°C ~ 100°C
Mounting Type	Through Hole
Package / Case	Radial
Lead Spacing	1.083" (27.50mm)
Termination	PC Pins
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 125MABA03KHS are categorized based on electrical and mechanical compatibility within the following parameters:

Primary Substitution Criteria:

Capacitance: 1.2 µF (exact match required)
Dielectric Material: Polypropylene (PP), Metallized
Mounting Type: Through Hole Radial
Lead Spacing: 1.083" (27.50mm)
Termination: PC Pins

Parametric Equivalents maintain identical electrical specifications (1.2 µF, ±10% tolerance, 500V DC, 250V AC) and physical dimensions, differing only in manufacturer and product status.

Functional Substitutes provide equivalent or superior electrical performance with modified specifications (higher voltage rating, improved tolerance) while maintaining mechanical compatibility and lead spacing.

Parameter Comparison

Parameter	125MABA03KHS (Cornell Dubilier)	MABA034120KHL (Nichicon)	MABA034120KHS (Nichicon)	R76PR412050H3J (KEMET)
Manufacturer	Cornell Dubilier / Illinois Capacitor	Nichicon	Nichicon	KEMET
Product Status	Obsolete	Active	Active	Active
Capacitance	1.2 µF	1.2 µF	1.2 µF	1.2 µF
Tolerance	±10%	±10%	±10%	±5%
Voltage Rating - DC	500V	500V	500V	630V
Voltage Rating - AC	250V	250V	250V	400V
Dielectric Material	Polypropylene (PP), Metallized	Polypropylene (PP), Metallized	Polypropylene (PP), Metallized	Polypropylene (PP), Metallized
Operating Temperature	-40°C ~ 100°C	-40°C ~ 100°C	-40°C ~ 100°C	-55°C ~ 125°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial	Radial	Radial	Radial
Size / Dimension	1.260" L x 0.354" W (32.00mm x 9.00mm)	1.260" L x 0.354" W (32.00mm x 9.00mm)	1.260" L x 0.354" W (32.00mm x 9.00mm)	1.260" L x 0.709" W (32.00mm x 18.00mm)
Height - Seated (Max)	0.669" (17.00mm)	0.669" (17.00mm)	0.669" (17.00mm)	1.303" (33.10mm)
Lead Spacing	1.083" (27.50mm)	1.083" (27.50mm)	1.083" (27.50mm)	1.083" (27.50mm)
Termination	PC Pins	PC Pins	PC Pins	PC Pins
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	Not Specified	Not Specified	REACH Unaffected

Engineering Selection Recommendations

Parametric Equivalents (Recommended for Direct Replacement):

MABA034120KHL and MABA034120KHS (Nichicon) are parametric equivalents of the 125MABA03KHS. Both parts maintain identical electrical specifications (1.2 µF, ±10% tolerance, 500V DC, 250V AC) and physical dimensions (32.00mm x 9.00mm, 17.00mm height). Both are active products with ROHS3 compliance. These parts provide direct substitution without circuit redesign or board layout modification.

Functional Substitute (Enhanced Performance):

R76PR412050H3J (KEMET) is a functional substitute with superior electrical ratings. This part provides 630V DC and 400V AC ratings compared to the 500V DC and 250V AC of the original part, along with improved ±5% tolerance. The operating temperature range extends to -55°C ~ 125°C. However, physical dimensions differ: the KEMET part measures 32.00mm x 18.00mm with 33.10mm seated height, compared to 32.00mm x 9.00mm with 17.00mm height of the original. Lead spacing remains compatible at 1.083" (27.50mm). This substitute requires verification of available board space due to increased width and height. The KEMET part is active and ROHS3 compliant with AEC-Q200 automotive qualification.

Frequently Asked Questions (FAQ)

Q: Can MABA034120KHL and MABA034120KHS be used interchangeably with 125MABA03KHS?

A: Yes. Both Nichicon parts are parametric equivalents with identical capacitance (1.2 µF), tolerance (±10%), voltage ratings (500V DC, 250V AC), operating temperature range (-40°C ~ 100°C), and physical dimensions (32.00mm x 9.00mm, 17.00mm height). Lead spacing and termination type are identical. Direct substitution is possible without circuit modification.

Q: What are the physical constraints when considering R76PR412050H3J as a substitute?

A: The KEMET R76PR412050H3J has increased physical dimensions compared to the original part. Width increases from 9.00mm to 18.00mm, and seated height increases from 17.00mm to 33.10mm. Lead spacing remains at 27.50mm. Board layout verification is required to confirm available space before substitution.

Q: Does R76PR412050H3J provide performance advantages over the original part?

A: R76PR412050H3J provides higher voltage ratings (630V DC versus 500V DC, and 400V AC versus 250V AC) and improved tolerance (±5% versus ±10%). Operating temperature range extends to -55°C ~ 125°C compared to -40°C ~ 100°C. These specifications represent enhanced performance characteristics suitable for demanding applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The 125MABA03KHS, MABA034120KHL, MABA034120KHS, and R76PR412050H3J are all ROHS3 compliant.

Q: What is the lead spacing requirement for these radial film capacitors?

A: All parts listed maintain a lead spacing of 1.083" (27.50mm), ensuring compatibility with existing through-hole PCB layouts designed for the original 125MABA03KHS.

Q: Can the Nichicon parts be used in motor run applications?

A: Yes. Both Nichicon parts (MABA034120KHL and MABA034120KHS) are specified for motor run applications, matching the original part's intended use.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message