305MABA01KJS Film Capacitor Equivalent & Substitute Parts

Part Overview

The 305MABA01KJS is a 3 µF film capacitor manufactured by Cornell Dubilier / Illinois Capacitor, rated for 800V DC operation with polypropylene metallized dielectric. This component is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing production and maintenance applications. The part is designed for motor run applications requiring through-hole radial mounting with PC pin termination.

Key Parameters

Parameter	Value
Capacitance	3 µF
Tolerance	±10%
Voltage Rating - DC	800V
Voltage Rating - AC	400V
Dielectric Material	Polypropylene (PP), Metallized
Operating Temperature Range	-40°C ~ 100°C
Mounting Type	Through Hole
Package / Case	Radial
Termination	PC Pins
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 305MABA01KJS are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Electrical Parameters (Critical):

Capacitance: 3 µF (exact match required)
Tolerance: ±10% (exact match required)
Voltage Rating - DC: 800V (exact match required)
Voltage Rating - AC: 400V (exact match required)
Dielectric Material: Polypropylene (PP), Metallized (exact match required)

Mechanical Parameters (Critical):

Mounting Type: Through Hole (exact match required)
Package / Case: Radial (exact match required)
Termination: PC Pins (exact match required)

Compliance Parameters:

RoHS Status: ROHS3 Compliant (exact match required)

Substitute parts are grouped into two categories: Similar Manufacturer Parts (direct cross-reference) and Parametric Equivalents (identical electrical and mechanical specifications from alternative manufacturers).

Parameter Comparison

Parameter	305MABA01KJS (Cornell Dubilier)	B32754C4305K000 (EPCOS - TDK)	MABA014300KJL (Nichicon)	MABA014300KJS (Nichicon)
Capacitance	3 µF	3 µF	3 µF	3 µF
Tolerance	±10%	±10%	±10%	±10%
Voltage Rating - DC	800V	800V	800V	800V
Voltage Rating - AC	400V	400V	400V	400V
Dielectric Material	Polypropylene (PP), Metallized	Polypropylene (PP), Metallized	Polypropylene (PP), Metallized	Polypropylene (PP), Metallized
Operating Temperature Range	-40°C ~ 100°C	-40°C ~ 105°C	-40°C ~ 100°C	-40°C ~ 100°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial	Radial	Radial	Radial
Size / Dimension (L x W)	1.673" x 0.866" (42.50mm x 22.00mm)	1.240" x 0.866" (31.50mm x 22.00mm)	1.673" x 0.866" (42.50mm x 22.00mm)	1.673" x 0.866" (42.50mm x 22.00mm)
Height - Seated (Max)	1.181" (30.00mm)	1.437" (36.50mm)	1.181" (30.00mm)	1.181" (30.00mm)
Lead Spacing	1.476" (37.50mm)	1.083" (27.50mm)	1.476" (37.50mm)	1.476" (37.50mm)
Termination	PC Pins	PC Pins	PC Pins	PC Pins
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active

Engineering Selection Recommendations

Parametric Equivalents (Preferred for Direct Replacement):

MABA014300KJL and MABA014300KJS (Nichicon) are parametric equivalents of the 305MABA01KJS. Both parts match all critical electrical and mechanical parameters, including capacitance, voltage ratings, dielectric material, operating temperature range, physical dimensions, lead spacing, and termination type. Both are active products with ROHS3 compliance. These parts are suitable for direct substitution in motor run applications without circuit modification.

Similar Manufacturer Part (Electrical Equivalent with Dimensional Variance):

B32754C4305K000 (EPCOS - TDK Electronics) matches all critical electrical parameters and meets ROHS3 compliance. However, this part exhibits dimensional differences: reduced length (1.240" vs. 1.673"), increased seated height (1.437" vs. 1.181"), and reduced lead spacing (1.083" vs. 1.476"). These dimensional variations require PCB layout verification before implementation. The part is active and suitable for applications where physical constraints permit the dimensional variance.

Product Status Consideration:

The 305MABA01KJS is obsolete. All identified substitutes are active products, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can MABA014300KJL or MABA014300KJS be used as direct replacements for 305MABA01KJS?

A: Yes. Both Nichicon parts are parametric equivalents matching all electrical specifications (3 µF, ±10%, 800V DC, 400V AC, polypropylene metallized dielectric), operating temperature range (-40°C ~ 100°C), and mechanical parameters (through-hole radial mounting, PC pins, identical physical dimensions and lead spacing). No circuit modification is required.

Q: What are the dimensional differences between B32754C4305K000 and 305MABA01KJS?

A: B32754C4305K000 has a shorter length (1.240" vs. 1.673"), greater seated height (1.437" vs. 1.181"), and reduced lead spacing (1.083" vs. 1.476"). These differences require verification against PCB layout constraints before selection.

Q: Are all substitute parts RoHS compliant?

A: Yes. The 305MABA01KJS and all identified substitutes (B32754C4305K000, MABA014300KJL, MABA014300KJS) are ROHS3 compliant.

Q: What is the operating temperature difference between B32754C4305K000 and the main part?

A: B32754C4305K000 operates to 105°C maximum, while 305MABA01KJS operates to 100°C maximum. This 5°C difference does not affect substitution suitability for applications within the 305MABA01KJS temperature range.

Q: Which substitute part is recommended for motor run applications?

A: MABA014300KJL and MABA014300KJS are specifically rated for motor run applications and are parametric equivalents with identical physical dimensions. These are the preferred selections for direct replacement in motor run circuits.

Q: Is inventory availability a factor in part selection?

A: Inventory levels are provided for reference: 305MABA01KJS (772 pcs), B32754C4305K000 (1879 pcs), MABA014300KJL (779 pcs), MABA014300KJS (1082 pcs). All parts are available in stock.

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