Equivalent & Substitute Parts for DLR1P1K

Part Overview

The DLR1P1K is a 0.1 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 100V DC operation with ±10% tolerance. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The part features polyester dielectric construction in a radial through-hole package suitable for general-purpose applications.

Substiute Parts

DLR1P1K

Cornell Dubilier Electronics (CDE)In Stock: 803DLR1P1K Datasheet

Current PartRFQ

167104K100A-F

Cornell Dubilier Electronics (CDE)In Stock: 1126167104K100A-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DLR1P1K is determined by the following critical parameters:

Primary Matching Criteria:

• Capacitance value: 0.1 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage rating: 100V DC minimum (equal or higher acceptable)
• Dielectric material: Polyester (exact match required)
• Mounting type: Through Hole (exact match required)
• Package configuration: Radial (exact match required)
• Lead spacing: 0.295" (7.50mm) (exact match required)
• Termination style: PC Pins (exact match required)

The substitute part 167104K100A-F meets all primary matching criteria. This part maintains identical electrical specifications while offering enhanced operating temperature range (-55°C to +125°C versus -40°C to +85°C) and active product status with RoHS3 compliance. The dielectric material is specified as polyester with metallized construction, which is a compatible variant of polyester film technology.

Parameter Comparison

Engineering Selection Recommendations

The 167104K100A-F is the direct functional equivalent for the obsolete DLR1P1K. Selection of this substitute is supported by the following engineering factors:

Product Status: The substitute part maintains active product status with Cornell Dubilier Electronics, ensuring long-term availability and supply chain continuity compared to the obsolete main part.

Regulatory Compliance: The 167104K100A-F achieves RoHS3 compliance, whereas the DLR1P1K is non-compliant. This distinction is significant for applications subject to RoHS directives or customer compliance requirements.

Operating Temperature: The substitute provides an extended operating temperature range (-55°C to +125°C) compared to the main part (-40°C to +85°C), offering greater thermal margin for demanding applications.

Electrical Equivalence: Both parts share identical capacitance, tolerance, voltage ratings, and lead spacing specifications, ensuring direct functional replacement in circuit designs.

Physical Compatibility: Lead spacing of 0.295" (7.50mm) is maintained, supporting direct PCB footprint compatibility. The substitute features a more compact physical envelope (10.50mm L x 3.50mm W versus 12.00mm L x 6.50mm W), which may provide layout advantages in space-constrained designs.

Frequently Asked Questions (FAQ)

Q: Can the 167104K100A-F be used as a direct replacement for the DLR1P1K in existing designs?

A: Yes. The substitute part meets all critical electrical and mechanical parameters: identical capacitance (0.1 µF), tolerance (±10%), voltage rating (100V DC), lead spacing (0.295"), and mounting configuration (through-hole radial). PCB footprints designed for the DLR1P1K will accommodate the 167104K100A-F without modification.

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

A: Metallized polyester is a standard variant of polyester film capacitor construction that maintains the same electrical performance characteristics as standard polyester film. The metallization process provides self-healing properties in the event of minor dielectric breakdown, enhancing reliability without altering the functional specifications required for substitution.

Q: Does the extended operating temperature range of the substitute part affect circuit performance?

A: The extended range (-55°C to +125°C for the substitute versus -40°C to +85°C for the main part) represents an enhancement that does not negatively impact performance within the original design specifications. Applications operating within the original temperature range will experience no functional change.

Q: Are there compliance considerations when substituting the DLR1P1K with the 167104K100A-F?

A: Yes. The substitute achieves RoHS3 compliance, whereas the main part is non-compliant. For applications subject to RoHS directives or customer compliance mandates, the substitute provides regulatory alignment. The REACH status remains unchanged (REACH Unaffected) for both parts.

Q: How do the physical dimensions of the substitute compare to the main part?

A: The 167104K100A-F is more compact: 10.50mm L x 3.50mm W (seated height 7.00mm) versus the DLR1P1K at 12.00mm L x 6.50mm W (seated height 12.50mm). The reduced footprint may provide layout advantages, though lead spacing remains identical at 0.295" (7.50mm), ensuring PCB compatibility.

Q: What is the MSL rating difference, and does it matter for this component?

A: The substitute part carries an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling. The main part lists MSL as Not Applicable. For standard through-hole components, this distinction has minimal practical impact on typical manufacturing and assembly processes.