DLR1D22K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DLR1D22K-F is a 2200 pF polyester film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 100V DC operation with ±10% tolerance. This component is classified as Obsolete in current product status, making identification of functionally equivalent alternatives essential for ongoing design support, maintenance, and production continuity.

Film capacitors in this capacitance and voltage range serve general-purpose applications requiring stable dielectric performance across industrial temperature ranges. The obsolescence of the DLR series necessitates substitution with active production equivalents that maintain electrical and mechanical compatibility within specified tolerance bands.

Substiute Parts

DLR1D22K-F

Cornell Dubilier Electronics (CDE)In Stock: 883DLR1D22K-F Datasheet

Current PartRFQ

168222K100A-F

Cornell Dubilier Electronics (CDE)In Stock: 1232168222K100A-F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete DLR1D22K-F is based on strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

• Capacitance value: 2200 pF (exact match required)
• Voltage rating: 100V DC minimum (equal or higher acceptable)
• Dielectric: Polyester film technology
• Tolerance: ±10% (standard for film capacitors)
• Mounting: Through-hole radial configuration
• Compliance: ROHS3 and REACH requirements maintained

Identified Substitute:

The 168222K100A-F (Cornell Dubilier Electronics, Series 168) meets all primary electrical specifications. This part is classified as Active in production status, ensuring long-term availability and supply chain reliability. The 168 series represents the current-generation equivalent to the obsolete DLR series within CDE's polyester film capacitor portfolio.

Mechanical Compatibility Considerations:

Physical dimensions differ between the main part and substitute:

• Main part (DLR1D22K-F): 6.00mm L × 3.50mm W, 10.50mm height, 3.50mm lead spacing
• Substitute (168222K100A-F): 7.20mm L × 2.50mm W, 6.50mm height, 5.00mm lead spacing

These dimensional differences require PCB layout verification to confirm mechanical fit within existing board designs.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 168222K100A-F

The 168222K100A-F is the direct functional equivalent for DLR1D22K-F replacement. Selection is based on the following engineering factors:

1. Electrical Equivalence: Identical capacitance (2200 pF), voltage rating (100V DC), tolerance (±10%), and dielectric material (polyester) ensure circuit performance parity.

2. Production Status: Active product status guarantees supply chain continuity and long-term availability, eliminating the obsolescence risk associated with the DLR series.

3. Regulatory Compliance: Both ROHS3 and REACH compliance certifications are maintained, satisfying current environmental and hazardous substance regulations.

4. Temperature Performance: The substitute's extended operating range (-55°C to +125°C) exceeds the original specification (-40°C to +85°C), providing enhanced thermal margin for demanding applications.

5. Mechanical Compatibility: PCB layout modification is required due to different lead spacing (5.00mm vs. 3.50mm) and reduced height (6.50mm vs. 10.50mm). The compact form factor of the substitute may provide board space advantages in redesigned layouts.

Implementation Consideration: Verify PCB footprint compatibility before production implementation. The substitute's smaller physical dimensions and different lead spacing necessitate layout adjustment but do not affect electrical performance.

Frequently Asked Questions (FAQ)

Q1: Can the 168222K100A-F be used as a direct drop-in replacement for DLR1D22K-F?

A: Electrical substitution is direct and complete. Mechanical substitution requires PCB layout verification due to different lead spacing (5.00mm vs. 3.50mm) and height (6.50mm vs. 10.50mm). The substitute cannot be installed in the original footprint without modification.

Q2: What is the significance of the metallized polyester dielectric in the substitute?

A: The 168222K100A-F uses metallized polyester film, which is a standard variant within polyester capacitor technology. This construction maintains electrical performance specifications while offering manufacturing advantages. Electrical characteristics remain equivalent to the non-metallized version for this application.

Q3: Does the extended temperature range of the substitute affect circuit design?

A: No. 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 require circuit redesign. The component remains suitable for all applications within the original temperature specification.

Q4: Are there compliance or certification differences between the main part and substitute?

A: No. Both parts maintain identical ROHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity classification. Regulatory and environmental requirements are fully satisfied by the substitute.

Q5: What is the lead spacing difference, and how does it affect PCB design?

A: The main part has 3.50mm lead spacing; the substitute has 5.00mm lead spacing. This difference requires PCB footprint modification. The substitute's larger spacing may improve PCB routing in some designs but necessitates layout adjustment before implementation.

Q6: Is the substitute available in the same packaging as the original?

A: The main part is specified with "-" packaging notation. The substitute is supplied in Bulk packaging. Confirm packaging requirements with procurement specifications before ordering.

Q7: How does the reduced height of the substitute affect board assembly?

A: The substitute is more compact (6.50mm vs. 10.50mm seated height). This may provide clearance advantages in space-constrained designs but requires PCB layout verification to confirm compatibility with surrounding components and assembly processes.