DLR1D33J-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DLR1D33J-F is a 3300 pF film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 100V DC operation with polyester dielectric material. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement continuity. The radial through-hole configuration and general-purpose application profile make this capacitor suitable for replacement with functionally compatible alternatives that maintain electrical and mechanical compatibility within specified tolerance ranges.

Key Parameters

Parameter	Value	Significance for Substitution
Capacitance	3300 pF	Primary electrical specification; substitute must match exactly
Tolerance	±5%	Defines acceptable capacitance variation; substitute must meet or exceed this specification
Voltage Rating (DC)	100V	Critical safety and reliability parameter; substitute must equal or exceed this rating
Voltage Rating (AC)	63V	Defines AC operating envelope; substitute must meet or exceed this specification
Dielectric Material	Polyester	Determines electrical characteristics and temperature stability; affects substitution compatibility
Operating Temperature Range	-40°C to +85°C	Defines thermal operating envelope; substitute must cover or exceed this range
Mounting Type	Through Hole Radial	Determines PCB compatibility and mechanical fit
Lead Spacing	0.138" (3.50mm)	Critical for PCB hole pattern compatibility
RoHS Status	ROHS3 Compliant	Regulatory compliance requirement for substitution eligibility

Substitute Part Grouping Explanation

Substitution eligibility for the DLR1D33J-F is determined by strict adherence to the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

Capacitance value must be 3300 pF (no tolerance variation acceptable for direct substitution)
Tolerance must be ±5% or tighter
DC voltage rating must be 100V or higher
AC voltage rating must be 63V or higher
Dielectric material must be polyester-based (polyester or metallized polyester acceptable)
Operating temperature range must encompass -40°C to +85°C minimum

Mechanical Compatibility Criteria:

Mounting type must be through-hole radial configuration
Lead spacing must be 0.138" (3.50mm) or compatible with existing PCB hole patterns
Package case must be radial

Regulatory Compliance:

RoHS3 compliance required
REACH unaffected status required

The substitute part 168332J100A-F meets all electrical compatibility criteria. However, mechanical compatibility requires evaluation based on lead spacing and physical dimensions.

Parameter Comparison

Parameter	DLR1D33J-F (Main Part)	168332J100A-F (Substitute)	Compatibility Status
Manufacturer	Cornell Dubilier Electronics (CDE)	Cornell Dubilier Electronics (CDE)	Same manufacturer
Capacitance	3300 pF	3300 pF	Exact match
Tolerance	±5%	±5%	Exact match
Voltage Rating (DC)	100V	100V	Exact match
Voltage Rating (AC)	63V	63V	Exact match
Dielectric Material	Polyester	Polyester, Metallized	Compatible (metallized polyester is polyester-based)
Operating Temperature Range	-40°C to +85°C	-55°C to +125°C	Substitute exceeds specification
Mounting Type	Through Hole Radial	Through Hole Radial	Exact match
Lead Spacing	0.138" (3.50mm)	0.197" (5.00mm)	Different spacing - mechanical evaluation required
Physical Dimensions (L x W)	0.236" x 0.138" (6.00mm x 3.50mm)	0.283" x 0.098" (7.20mm x 2.50mm)	Different dimensions
Height (Seated Max)	0.413" (10.50mm)	0.256" (6.50mm)	Substitute is lower profile
Product Status	Obsolete	Active	Substitute is currently manufactured
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Exact match
REACH Status	REACH Unaffected	REACH Unaffected	Exact match

Engineering Selection Recommendations

Electrical Substitution Feasibility: The 168332J100A-F demonstrates full electrical compatibility with the DLR1D33J-F across all specified parameters. Both components share identical capacitance (3300 pF), tolerance (±5%), voltage ratings (100V DC / 63V AC), and regulatory compliance status (ROHS3 Compliant, REACH Unaffected). The metallized polyester dielectric in the substitute part is functionally equivalent to the standard polyester dielectric in the main part. The substitute's extended operating temperature range (-55°C to +125°C) exceeds the original specification (-40°C to +85°C), providing enhanced thermal margin.

Mechanical Substitution Considerations: Direct mechanical substitution requires PCB evaluation. The lead spacing differs between parts: the main part uses 0.138" (3.50mm) spacing, while the substitute uses 0.197" (5.00mm) spacing. Physical dimensions also differ, with the substitute being larger in length (0.283" vs 0.236") but smaller in width (0.098" vs 0.138") and significantly lower in height (0.256" vs 0.413"). These dimensional differences necessitate verification against existing PCB hole patterns and clearance requirements before implementation.

Product Status Advantage: The 168332J100A-F is classified as active product status with 1835 units in stock, compared to the obsolete DLR1D33J-F with 774 units available. This status difference ensures long-term procurement availability and continued manufacturer support for the substitute part.

Compliance and Certification: Both parts maintain identical regulatory compliance profiles (ROHS3 Compliant, REACH Unaffected, EAR99 ECCN classification, 8532.25.0010 HTSUS code), ensuring no additional compliance burden for substitution.

Frequently Asked Questions (FAQ)

Q: Can the 168332J100A-F be used as a direct drop-in replacement for the DLR1D33J-F?

A: Electrical substitution is fully compatible. Mechanical substitution requires PCB verification due to different lead spacing (0.197" vs 0.138") and physical dimensions. If the PCB hole pattern accommodates the 5.00mm lead spacing and component dimensions, direct substitution is feasible. If not, PCB redesign or alternative mounting solutions are required.

Q: What is the significance of the metallized polyester dielectric in the substitute part?

A: Metallized polyester is a polyester-based dielectric material that provides equivalent electrical performance to standard polyester. The metallization process does not alter the fundamental electrical characteristics relevant to this application. Both materials are suitable for general-purpose film capacitor applications with identical voltage and capacitance specifications.

Q: Does the substitute part's extended temperature range affect compatibility?

A: The substitute's operating range (-55°C to +125°C) exceeds the original specification (-40°C to +85°C). This provides additional thermal margin and does not create compatibility issues. The substitute can operate safely within the original part's temperature envelope and beyond.

Q: Why is lead spacing different between these parts?

A: Lead spacing differences reflect design variations between the DLR series (3.50mm) and the 168 series (5.00mm). These are distinct product lines from the same manufacturer with different mechanical packaging, though identical electrical specifications. PCB hole pattern compatibility must be verified before substitution.

Q: Is the substitute part's lower profile height an advantage or disadvantage?

A: The substitute's lower height (0.256" vs 0.413") is generally advantageous for space-constrained applications, provided the PCB layout accommodates the different lead spacing. This dimensional difference does not affect electrical performance.

Q: Are there any regulatory or compliance barriers to substitution?

A: No. Both parts maintain identical regulatory compliance status (ROHS3 Compliant, REACH Unaffected). Substitution does not introduce additional compliance requirements or restrictions.

Q: What inventory considerations apply to this substitution?

A: The substitute part (168332J100A-F) has significantly higher inventory availability (1835 units vs 774 units) and active product status, ensuring reliable long-term procurement. The main part's obsolete status makes the substitute the preferred choice for new designs and ongoing production.

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