DLR1P47K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DLR1P47K-F is a 0.47 µF polyester film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 100V DC voltage rating and ±10% tolerance. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a temperature range of -40°C to 85°C and is configured as a through-hole radial component with PC pin termination.

Key Parameters

Parameter	Value
Capacitance	0.47 µF
Tolerance	±10%
Voltage Rating (DC)	100V
Voltage Rating (AC)	63V
Dielectric Material	Polyester
Operating Temperature Range	-40°C to 85°C
Mounting Type	Through Hole
Package Type	Radial
Lead Spacing	0.394" (10.00mm)
Termination	PC Pins
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the DLR1P47K-F is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Capacitance value: 0.47 µF (exact match required)
Voltage rating: Minimum 100V DC / 63V AC (equal or higher acceptable)
Tolerance: ±10% or tighter (±5% acceptable as upgrade)
Dielectric material: Polyester-based film
Mounting configuration: Through-hole radial with 10.00mm lead spacing
Termination: PC pins

Acceptable Variations:

Operating temperature range may exceed the original specification
Physical dimensions may vary within PCB layout constraints
Dielectric composition may include metallized or stacked configurations
Packaging format (bulk, cut tape) does not affect electrical compatibility

Substitute parts are grouped into two categories: direct equivalents (matching all primary parameters) and upgrades (enhanced voltage ratings or temperature performance while maintaining core electrical specifications).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage DC	Voltage AC	Dielectric	Temp Range	Size (mm)	Status
DLR1P47K-F	CDE	0.47 µF	±10%	100V	63V	Polyester	-40 to 85°C	19.50 x 10.50	Obsolete
160474J100E-F	CDE	0.47 µF	±5%	100V	63V	Polyester, Metallized	-55 to 105°C	13.00 x 6.00	Active
160474K100E-F	CDE	0.47 µF	±10%	100V	63V	Polyester, Metallized	-55 to 105°C	13.00 x 6.00	Active
B32521C1474J000	EPCOS - TDK	0.47 µF	±5%	100V	63V	Polyester, PET, Metallized - Stacked	-55 to 125°C	13.00 x 4.00	Active
B32521C1474K000	EPCOS - TDK	0.47 µF	±10%	100V	63V	Polyester, PET, Metallized - Stacked	-55 to 125°C	13.00 x 4.00	Active
B32521C3474J000	EPCOS - TDK	0.47 µF	±5%	250V	160V	Polyester, PET, Metallized - Stacked	-55 to 125°C	13.00 x 6.00	Active
B32521C3474K000	EPCOS - TDK	0.47 µF	±10%	250V	160V	Polyester, PET, Metallized - Stacked	-55 to 125°C	13.00 x 6.00	Active
B32521C3474K189	EPCOS - TDK	0.47 µF	±10%	250V	160V	Polyester, PET, Metallized - Stacked	-55 to 125°C	13.00 x 6.00	Active
BFC237221474	Vishay Beyschlag	0.47 µF	±10%	100V	63V	Polyester, Metallized	-55 to 105°C	12.50 x 5.00	Active

Engineering Selection Recommendations

Direct Equivalent (100V DC Rating):

The 160474K100E-F from Cornell Dubilier Electronics provides the closest functional replacement for the DLR1P47K-F. Both parts share identical electrical specifications (0.47 µF, ±10% tolerance, 100V DC / 63V AC) and maintain the same lead spacing (10.00mm). The 160474K100E-F is active in production and ROHS3 compliant. Physical dimensions are reduced (13.00 x 6.00mm versus 19.50 x 10.50mm), which may require PCB layout verification but presents no electrical incompatibility.

Alternative Direct Equivalent (±5% Tolerance):

The 160474J100E-F offers identical voltage ratings and lead spacing with improved tolerance (±5% versus ±10%). This part is suitable where tighter capacitance tolerance is required. Metallized construction provides enhanced reliability compared to standard polyester film.

Upgraded Substitutes (100V DC with Enhanced Temperature Range):

The B32521C1474K000 (EPCOS - TDK) matches the DLR1P47K-F electrical specifications while extending the operating temperature range to -55°C to 125°C. This part carries AEC-Q200 automotive qualification and is suitable for applications requiring extended thermal performance. The B32521C1474J000 provides the same benefits with ±5% tolerance.

High-Voltage Upgrades (250V DC Rating):

The B32521C3474K000, B32521C3474K189, and B32521C3474J000 (EPCOS - TDK) provide 250V DC / 160V AC ratings while maintaining 0.47 µF capacitance. These parts are suitable for applications requiring higher voltage margin or operating in elevated voltage environments. All carry AEC-Q200 qualification and extended temperature range (-55°C to 125°C).

Alternative Manufacturer (100V DC):

The BFC237221474 from Vishay Beyschlag provides equivalent electrical performance with ±10% tolerance and 100V DC rating. This part features long-life construction and is ROHS3 compliant. Physical dimensions (12.50 x 5.00mm) differ from the original but maintain standard 10.00mm lead spacing.

Frequently Asked Questions (FAQ)

Q: Can I substitute the DLR1P47K-F with a part having ±5% tolerance instead of ±10%?

A: Yes. A tighter tolerance (±5%) is electrically compatible and represents an upgrade. The part will operate within the required capacitance range with improved precision. No circuit redesign is necessary.

Q: Are the EPCOS B3252 series parts suitable replacements despite their smaller physical size?*

A: Yes, provided PCB layout accommodates the reduced dimensions. The B32521C1474K000 and B32521C1474J000 maintain identical electrical specifications and lead spacing (10.00mm). Physical size reduction does not affect electrical performance or compatibility.

Q: Can I use a 250V DC rated part in place of the 100V DC original?

A: Yes. Higher voltage ratings are acceptable substitutes. The B32521C3474K000 and related 250V parts will function correctly in circuits designed for 100V operation. No circuit modification is required. This represents an upgrade with increased voltage margin.

Q: What is the difference between metallized and standard polyester film construction?

A: Both are polyester-based dielectrics. Metallized construction applies a thin metal layer to the film surface, providing self-healing properties and improved reliability. Standard polyester film is non-metallized. Both are electrically equivalent for the specified parameters.

Q: Do the substitute parts require different PCB footprints?

A: The lead spacing remains constant at 10.00mm (0.394") across all substitute parts, ensuring compatibility with existing PCB footprints. Physical body dimensions vary, but this does not affect electrical connection or mounting hole positioning.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the environmental compliance status of the original DLR1P47K-F.

Q: Which substitute part offers the best thermal performance?

A: The EPCOS - TDK B3252* series parts (B32521C1474K000, B32521C1474J000, B32521C3474K000, B32521C3474J000, B32521C3474K189) operate across -55°C to 125°C, exceeding the original -40°C to 85°C range. These parts are recommended for applications requiring extended temperature operation.

Q: Can I mix different substitute parts in the same circuit board?

A: Yes, provided all parts meet the circuit's electrical requirements (capacitance, voltage rating, tolerance). Mixing manufacturers or tolerance grades is acceptable from an electrical standpoint. Verify mechanical fit if physical dimensions differ significantly.

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