168334K50C-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The 168334K50C-F is a 0.33 µF polyester metallized film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 50V DC voltage rating and ±10% tolerance. This radial through-hole component is designed for general-purpose applications and operates across a temperature range of -55°C to 125°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent capacitance values, compatible voltage ratings, matching dielectric materials, and identical mounting configurations are available from alternative manufacturers or from the same manufacturer with improved specifications.

Key Parameters

Parameter	Value
Capacitance	0.33 µF
Tolerance	±10%
Voltage Rating - DC	50V
Voltage Rating - AC	30V
Dielectric Material	Polyester, Metallized
Mounting Type	Through Hole
Package / Case	Radial
Lead Spacing	0.197" (5.00mm)
Operating Temperature Range	-55°C ~ 125°C
Termination	PC Pins
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 168334K50C-F is determined by the following criteria:

Primary Substitution Criteria:

Capacitance value: 0.33 µF (exact match required)
Dielectric material: Polyester, Metallized (exact match required)
Mounting type: Through Hole Radial (exact match required)
Lead spacing: 0.197" (5.00mm) (exact match required)
Operating temperature range: -55°C ~ 125°C (exact match required)
Termination: PC Pins (exact match required)

Secondary Substitution Criteria (Upgrades Permitted):

Tolerance: ±10% or better (±5% acceptable as upgrade)
Voltage rating - DC: 50V or higher (63V or 100V acceptable as upgrade)
Voltage rating - AC: 30V or higher (40V or 63V acceptable as upgrade)

Substitute parts are grouped into two categories: direct replacements with improved tolerance specifications and voltage-rated upgrades that maintain all mechanical and electrical compatibility while providing enhanced performance margins.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage DC	Voltage AC	Dielectric	Package	Lead Spacing	Size L x W (mm)	Height Max (mm)	Temp Range
168334K50C-F	CDE	0.33 µF	±10%	50V	30V	Polyester, Metallized	Radial	5.00mm	7.20 x 3.50	7.50	-55 to 125°C
168334J50C-F	CDE	0.33 µF	±5%	50V	30V	Polyester, Metallized	Radial	5.00mm	7.20 x 3.50	7.50	-55 to 125°C
168334J63H-F	CDE	0.33 µF	±5%	63V	40V	Polyester, Metallized	Radial	5.00mm	7.20 x 3.50	7.50	-55 to 125°C
B32529C0334J000	EPCOS - TDK Electronics	0.33 µF	±5%	63V	40V	Polyester, PET, Metallized - Stacked	Radial	5.00mm	7.30 x 3.00	6.50	-55 to 125°C
B32529C0334J289	EPCOS - TDK Electronics	0.33 µF	±5%	63V	40V	Polyester, PET, Metallized - Stacked	Radial	5.00mm	7.30 x 3.00	6.50	-55 to 125°C
B32529C0334K000	EPCOS - TDK Electronics	0.33 µF	±10%	63V	40V	Polyester, PET, Metallized - Stacked	Radial	5.00mm	7.30 x 3.00	6.50	-55 to 125°C
B32529C0334K189	EPCOS - TDK Electronics	0.33 µF	±10%	63V	40V	Polyester, PET, Metallized - Stacked	Radial	5.00mm	7.30 x 3.00	6.50	-55 to 125°C
B32529C0334K289	EPCOS - TDK Electronics	0.33 µF	±10%	63V	40V	Polyester, PET, Metallized - Stacked	Radial	5.00mm	7.30 x 3.00	6.50	-55 to 125°C
B32529C1334J000	EPCOS - TDK Electronics	0.33 µF	±5%	100V	63V	Polyester, PET, Metallized - Stacked	Radial	5.00mm	7.30 x 3.50	8.00	-55 to 125°C

Engineering Selection Recommendations

Direct Replacement (Same Voltage Rating):

The 168334J50C-F from Cornell Dubilier Electronics provides direct replacement capability with improved tolerance specification (±5% versus ±10%). This part maintains identical voltage ratings (50V DC / 30V AC), physical dimensions, and lead spacing. Selection of this part is appropriate when tighter capacitance tolerance is required within the same voltage class.

Voltage-Rated Upgrades (Higher Voltage Margin):

The 168334J63H-F offers a 63V DC rating with ±5% tolerance while maintaining the same physical footprint and lead spacing as the original part. This upgrade provides enhanced voltage margin and improved tolerance specification.

The EPCOS B3252* series parts (B32529C0334J000, B32529C0334J289, B32529C0334K000, B32529C0334K189, B32529C0334K289, and B32529C1334J000) provide substitution with higher voltage ratings (63V or 100V DC) and AEC-Q200 automotive qualification. These parts feature polyethylene terephthalate (PET) dielectric material with metallized stacked construction. Physical dimensions vary slightly (7.30mm x 3.00mm or 7.30mm x 3.50mm) with reduced height profiles (6.50mm or 8.00mm) compared to the original part. All EPCOS parts maintain 5.00mm lead spacing and -55°C to 125°C operating temperature range.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and REACH unaffected status. EPCOS parts carry AEC-Q200 automotive qualification, which is not applicable to the original CDE part. Selection of EPCOS parts is appropriate for applications requiring automotive-grade reliability.

Packaging Considerations:

CDE parts are available in Bulk packaging. EPCOS parts are available in both Bulk and Cut Tape (CT) packaging options. Packaging selection depends on procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can the 168334J50C-F replace the 168334K50C-F in all applications?

A: Yes. The 168334J50C-F is a direct replacement with identical voltage ratings (50V DC / 30V AC), capacitance (0.33 µF), physical dimensions, and lead spacing. The only difference is improved tolerance (±5% versus ±10%), which is a specification upgrade.

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

A: CDE parts (168334 series) maintain the original manufacturer specifications with optional tolerance and voltage upgrades. EPCOS B3252* series parts provide higher voltage ratings (63V or 100V DC) with AEC-Q200 automotive qualification. EPCOS parts use polyethylene terephthalate (PET) dielectric with metallized stacked construction and have slightly different physical dimensions (7.30mm x 3.00mm or 7.30mm x 3.50mm versus 7.20mm x 3.50mm).

Q: Are EPCOS parts physically compatible with the original PCB layout?

A: EPCOS parts maintain the same 5.00mm lead spacing as the original 168334K50C-F, ensuring compatibility with existing through-hole PCB layouts. However, physical dimensions differ slightly. EPCOS parts with 63V rating measure 7.30mm x 3.00mm with 6.50mm maximum height, while the original measures 7.20mm x 3.50mm with 7.50mm maximum height. The 100V EPCOS part (B32529C1334J000) measures 7.30mm x 3.50mm with 8.00mm maximum height. Verify PCB clearances before substitution.

Q: What is the difference between B32529C0334J289 and B32529C0334J000?

A: Both parts are electrically identical (0.33 µF, ±5%, 63V DC). The difference is packaging: B32529C0334J289 is supplied in Cut Tape (CT) format, while B32529C0334J000 is supplied in Bulk format. Selection depends on procurement and assembly process requirements.

Q: Can I use a 100V rated part (B32529C1334J000) in place of the 50V original?

A: Yes. The B32529C1334J000 provides higher voltage rating (100V DC versus 50V DC) with improved tolerance (±5% versus ±10%) and maintains identical capacitance (0.33 µF) and lead spacing (5.00mm). This is a specification upgrade suitable for applications requiring enhanced voltage margin. Physical height increases to 8.00mm maximum, so verify PCB clearances.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, matching the environmental compliance of the original 168334K50C-F.

Q: Which substitute part has the smallest physical footprint?

A: The EPCOS B3252* series parts with 63V rating (B32529C0334J000, B32529C0334J289, B32529C0334K000, B32529C0334K189, B32529C0334K289) have the smallest height at 6.50mm maximum, compared to 7.50mm for the original part and 8.00mm for the 100V EPCOS part.

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