Equivalent & Substitute Parts for 185334J50RCA-F

Part Overview

The 185334J50RCA-F is a 0.33 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 185 series. This radial polyester metallized capacitor operates at 50V DC with ±5% tolerance and is rated for general-purpose applications across an operating temperature range of -55°C to 125°C. The part is currently active in production with 989 units in stock and is packaged in Tape & Reel format.

Equivalent and substitute parts are identified when electrical parameters (capacitance, voltage rating, tolerance, dielectric material) and mechanical parameters (mounting type, package case, lead spacing, termination) align with the original specification or provide upgraded performance characteristics within the same functional category.

Key Parameters

Parameter	Value
Capacitance	0.33 µF
Tolerance	±5%
Voltage Rating - DC	50V
Voltage Rating - AC	30V
Dielectric Material	Polyester, Metallized
Operating Temperature Range	-55°C to 125°C
Mounting Type	Through Hole
Package / Case	Radial
Lead Spacing	0.197" (5.00mm)
Termination	PC Pins
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 185334J50RCA-F are classified into two categories based on electrical compatibility:

Direct Equivalent (Same Voltage Rating): The 168334J50C-F maintains identical electrical specifications: 0.33 µF capacitance, ±5% tolerance, 50V DC rating, and polyester metallized dielectric. This part differs only in packaging (Bulk versus Tape & Reel) and series designation (168 versus 185), both manufactured by CDE. Mechanical dimensions and lead spacing are identical.

Upgraded Substitutes (Higher Voltage Rating): The 168334J63H-F, B32529C0334J000, B32529C0334J289, and B32529C1334J000 provide higher voltage ratings (63V or 100V DC) while maintaining the same 0.33 µF capacitance and ±5% tolerance. These parts are suitable for applications where the original 50V specification can be replaced with a higher-rated component without circuit modification. All upgraded substitutes maintain Through Hole radial mounting with 5.00mm lead spacing and PC pin termination.

Key Parameters Determining Substitution:

Capacitance value (0.33 µF)
Tolerance (±5%)
Dielectric type (Polyester, Metallized)
Mounting type (Through Hole, Radial)
Lead spacing (5.00mm)
Termination style (PC Pins)
Operating temperature range (-55°C to 125°C)

Parameter Comparison

Parameter	185334J50RCA-F	168334J50C-F	168334J63H-F	B32529C0334J000	B32529C0334J289	B32529C1334J000
Manufacturer	CDE	CDE	CDE	EPCOS - TDK	EPCOS - TDK	EPCOS - TDK
Capacitance	0.33 µF	0.33 µF	0.33 µF	0.33 µF	0.33 µF	0.33 µF
Tolerance	±5%	±5%	±5%	±5%	±5%	±5%
Voltage Rating - DC	50V	50V	63V	63V	63V	100V
Voltage Rating - AC	30V	30V	40V	40V	40V	63V
Dielectric Material	Polyester, Metallized	Polyester, Metallized	Polyester, Metallized	Polyester, PET, Metallized - Stacked	Polyester, PET, Metallized - Stacked	Polyester, PET, Metallized - Stacked
Operating Temperature	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial	Radial	Radial	Radial	Radial	Radial
Lead Spacing	5.00mm	5.00mm	5.00mm	5.00mm	5.00mm	5.00mm
Termination	PC Pins	PC Pins	PC Pins	PC Pins	PC Pins	PC Pins
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Tape & Reel (TR)	Bulk	Bulk	Bulk	Cut Tape (CT)	Bulk
Inventory Status	989 Pcs	3988 Pcs	6053 Pcs	6103 Pcs	9396 Pcs	55996 Pcs

Engineering Selection Recommendations

Direct Equivalent Selection: The 168334J50C-F is a direct electrical and mechanical equivalent to the 185334J50RCA-F. Both parts maintain identical 0.33 µF capacitance, 50V DC voltage rating, ±5% tolerance, and polyester metallized dielectric construction. The 168334J50C-F is available in higher inventory (3988 units) and is suitable for direct substitution in applications where the original Tape & Reel packaging is not required. Both parts are ROHS3 compliant and maintain the same operating temperature range.

Upgraded Voltage Rating Selection: The 168334J63H-F provides a voltage upgrade to 63V DC while maintaining all other electrical and mechanical parameters. This part is appropriate for applications where circuit design permits higher voltage-rated components. The 168334J63H-F is manufactured by CDE and maintains product continuity within the same manufacturer family.

The B32529C0334J000 and B32529C0334J289 are EPCOS-TDK manufactured parts rated at 63V DC with automotive-grade AEC-Q200 certification. These parts feature polyester PET metallized stacked dielectric construction and are suitable for automotive and EMI/RFI suppression applications. The B32529C0334J289 is available in Cut Tape packaging with the highest inventory (9396 units).

The B32529C1334J000 provides the highest voltage rating at 100V DC, also with AEC-Q200 automotive certification. This part is available in the largest inventory (55996 units) and is suitable for applications requiring maximum voltage margin.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and are rated for the same -55°C to 125°C operating temperature range. EPCOS-TDK parts include AEC-Q200 automotive qualification, which is not specified for the original CDE part.

Frequently Asked Questions (FAQ)

Q: Can the 168334J50C-F replace the 185334J50RCA-F directly?

A: Yes. The 168334J50C-F is a direct electrical and mechanical equivalent with identical capacitance (0.33 µF), voltage rating (50V DC), tolerance (±5%), dielectric material (polyester metallized), and lead spacing (5.00mm). The only differences are the packaging format (Bulk versus Tape & Reel) and series designation (168 versus 185). Both are manufactured by CDE and are ROHS3 compliant.

Q: What is the difference between the CDE and EPCOS-TDK substitute parts?

A: CDE parts (168334J50C-F and 168334J63H-F) maintain the original manufacturer family and construction. EPCOS-TDK parts (B32529 series) feature polyester PET metallized stacked dielectric construction and include AEC-Q200 automotive certification. All parts maintain the same 0.33 µF capacitance, ±5% tolerance, 5.00mm lead spacing, and Through Hole radial mounting.

Q: Can I use a higher voltage-rated part in place of the 50V original?

A: Yes. The 63V and 100V rated substitutes (168334J63H-F, B32529C0334J000, B32529C0334J289, B32529C1334J000) maintain identical capacitance and tolerance specifications. Higher voltage-rated capacitors are electrically compatible in circuits designed for lower voltages. Physical dimensions vary slightly; verify PCB layout compatibility before substitution.

Q: What are the physical dimension differences between substitute parts?

A: The original 185334J50RCA-F and direct equivalent 168334J50C-F measure 0.283" L x 0.138" W (7.20mm x 3.50mm) with 0.295" seated height. EPCOS-TDK B32529 series parts measure 0.287" L x 0.118" W (7.30mm x 3.00mm) with 0.256" seated height. The B32529C1334J000 (100V) measures 0.287" L x 0.138" W (7.30mm x 3.50mm) with 0.315" seated height. Verify PCB footprint compatibility before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant. EPCOS-TDK parts additionally carry AEC-Q200 automotive qualification, which is not specified for the original CDE part.

Q: What packaging options are available for the substitutes?

A: The 168334J50C-F and 168334J63H-F are available in Bulk packaging. The B32529C0334J000 and B32529C1334J000 are available in Bulk packaging. The B32529C0334J289 is available in Cut Tape (CT) packaging. The original 185334J50RCA-F is supplied in Tape & Reel (TR) format.

Q: Which substitute has the highest inventory availability?

A: The B32529C1334J000 (100V DC rated) has the highest inventory with 55996 units in stock. The B32529C0334J289 (63V DC, Cut Tape) has 9396 units available.

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