DLR1D33K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DLR1D33K-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, making identification of functionally equivalent substitute parts essential for ongoing design support and production continuity. The part is designed for general-purpose applications requiring through-hole radial mounting with PC pin termination.

Substiute Parts

DLR1D33K-F

Cornell Dubilier Electronics (CDE)In Stock: 991DLR1D33K-F Datasheet

Current PartRFQ

168332K100A-F

Cornell Dubilier Electronics (CDE)In Stock: 1003168332K100A-F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DLR1D33K-F is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Capacitance value: 3300 pF (exact match required)
• Tolerance: ±10% (matching tolerance band)
• Voltage rating: Minimum 100V DC (equal or higher acceptable)
• Dielectric material: Polyester (functional equivalence)

Mechanical Equivalence Requirements:

• Mounting type: Through hole radial configuration
• Termination style: PC pins
• Package classification: Radial film capacitor

Compliance Requirements:

• RoHS3 compliance status
• REACH compliance status
• Moisture sensitivity level: MSL 1 (unlimited shelf life)

The substitute part 168332K100A-F meets all electrical and mechanical equivalence criteria while maintaining full regulatory compliance. Physical dimensions and lead spacing differ from the original part; however, these variations are acceptable in through-hole applications where PCB layout accommodates the substitute geometry.

Parameter Comparison

Engineering Selection Recommendations

The 168332K100A-F is the primary substitute for the obsolete DLR1D33K-F based on the following engineering criteria:

Electrical Compatibility: Both parts maintain identical capacitance (3300 pF), tolerance (±10%), and voltage ratings (100V DC / 63V AC). The metallized polyester dielectric in the substitute provides equivalent electrical performance within the specified tolerance band.

Regulatory Compliance: The substitute part maintains ROHS3 compliance and REACH unaffected status, ensuring compatibility with current manufacturing and environmental regulations. Both parts carry MSL 1 rating, indicating unlimited shelf life without moisture sensitivity constraints.

Operational Envelope: The substitute part's extended operating temperature range (-55°C to +125°C) exceeds the original specification (-40°C to +85°C), providing enhanced thermal margin for applications operating at temperature extremes.

Product Availability: The substitute part carries active product status with 906 units in stock, ensuring supply continuity for production requirements. The original DLR1D33K-F is obsolete with limited remaining inventory (930 units).

Physical Accommodation: PCB layout modifications may be required to accommodate the substitute's different lead spacing (5.00mm versus 3.50mm) and physical dimensions (7.20mm L x 2.50mm W versus 6.00mm L x 3.50mm W). These modifications are standard engineering practice in through-hole component substitution.

Frequently Asked Questions (FAQ)

Q: Can the 168332K100A-F directly replace the DLR1D33K-F without circuit modification?

A: Electrical substitution is direct. The capacitance, tolerance, and voltage ratings are identical. Physical accommodation on the PCB may require lead spacing adjustment due to the substitute's 5.00mm lead spacing versus the original 3.50mm spacing.

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

A: Metallized polyester dielectric provides equivalent electrical performance to standard polyester while maintaining the same capacitance and voltage rating specifications. This is a standard manufacturing variation within the polyester film capacitor category.

Q: Are there compliance concerns when substituting the DLR1D33K-F with the 168332K100A-F?

A: No compliance concerns exist. Both parts are ROHS3 compliant and REACH unaffected. Regulatory status remains unchanged with the substitute part.

Q: Why does the substitute part have a wider operating temperature range?

A: The 168332K100A-F's extended temperature range (-55°C to +125°C) represents a design enhancement in the active product line. This wider range does not affect substitution compatibility and provides additional operational margin for temperature-sensitive applications.

Q: What is the lead spacing difference, and does it affect substitution feasibility?

A: The original part has 3.50mm lead spacing; the substitute has 5.00mm lead spacing. This difference requires PCB layout modification to accommodate the wider spacing. This is a standard consideration in through-hole component substitution and does not affect electrical compatibility.

Q: Is the substitute part available in the same packaging as the original?

A: The substitute part is supplied in bulk packaging, whereas the original part packaging specification was not detailed. Packaging format does not affect electrical or mechanical compatibility for through-hole applications.

Q: Can the 168332K100A-F be used in high-temperature applications beyond the original specification?

A: The substitute part's operating range extends to +125°C, compared to the original +85°C maximum. Applications requiring operation above +85°C can utilize the substitute's extended thermal capability within its specified range.