DLR1D1K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DLR1D1K-F is a 1000 pF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 100V DC voltage rating and ±10% tolerance. This component is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing design support and procurement continuity. The part features polyester dielectric construction with radial through-hole mounting, suitable for general-purpose applications requiring stable capacitance performance across industrial temperature ranges.

Key Parameters

Parameter	Value
Capacitance	1000 pF
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
Termination	PC Pins
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the DLR1D1K-F is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

Capacitance value: 1000 pF (exact match required)
Tolerance: ±10% (matching tolerance band)
Voltage Rating (DC): 100V minimum (equal or higher acceptable)
Voltage Rating (AC): 63V minimum (equal or higher acceptable)
Dielectric material: Polyester (same material family)

Mechanical Equivalence Criteria:

Mounting type: Through Hole (radial configuration)
Termination style: PC Pins
Package classification: Radial

Compliance Criteria:

RoHS3 compliance required
REACH unaffected status required
ECCN classification: EAR99

The substitute part 168102K100A-F meets all electrical and mechanical equivalence requirements while maintaining full regulatory compliance.

Parameter Comparison

Parameter	DLR1D1K-F (Main Part)	168102K100A-F (Substitute)	Compatibility
Capacitance	1000 pF	1000 pF	Equivalent
Tolerance	±10%	±10%	Equivalent
Voltage Rating (DC)	100V	100V	Equivalent
Voltage Rating (AC)	63V	63V	Equivalent
Dielectric Material	Polyester	Polyester, Metallized	Compatible
Operating Temperature Range	-40°C to +85°C	-55°C to +125°C	Substitute exceeds specification
Mounting Type	Through Hole	Through Hole	Equivalent
Package Type	Radial	Radial	Equivalent
Termination	PC Pins	PC Pins	Equivalent
Lead Spacing	0.138" (3.50mm)	0.197" (5.00mm)	Different spacing
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 footprint
Height (Seated Max)	0.413" (10.50mm)	0.256" (6.50mm)	Substitute is more compact
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Product Status	Obsolete	Active	Substitute is in active production

Engineering Selection Recommendations

The 168102K100A-F is a direct electrical equivalent to the obsolete DLR1D1K-F, with identical capacitance, tolerance, and voltage ratings. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity.

Key Considerations for Selection:

The substitute part features a metallized polyester dielectric construction, which provides enhanced performance characteristics compared to the standard polyester dielectric of the main part. The operating temperature range of the substitute (-55°C to +125°C) exceeds the original specification (-40°C to +85°C), offering broader environmental compatibility.

Physical dimensions and lead spacing differ between the two parts. The DLR1D1K-F has a lead spacing of 3.50mm with a seated height of 10.50mm, while the 168102K100A-F has a lead spacing of 5.00mm with a seated height of 6.50mm. These dimensional differences require PCB layout verification before substitution to ensure mechanical fit and electrical connectivity.

The 168102K100A-F is currently in active production status, ensuring long-term availability and supply chain stability compared to the obsolete DLR1D1K-F.

Frequently Asked Questions (FAQ)

Q: Can the 168102K100A-F be used as a direct replacement for the DLR1D1K-F without circuit modification?

A: Electrical substitution is valid. The capacitance, tolerance, and voltage ratings are identical. However, the different lead spacing (3.50mm vs. 5.00mm) and physical dimensions require PCB layout verification. If the original PCB is designed specifically for the DLR1D1K-F footprint, mechanical adaptation or PCB redesign may be necessary.

Q: What is the significance of the metallized polyester dielectric in the 168102K100A-F?

A: Metallized polyester dielectric provides self-healing properties and improved performance stability compared to standard polyester. This enhancement does not affect electrical equivalence for the specified 1000 pF, 100V application but offers superior reliability characteristics.

Q: Are both parts compliant with current environmental regulations?

A: Both the DLR1D1K-F and 168102K100A-F are ROHS3 compliant and REACH unaffected. Regulatory compliance is maintained with either component.

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

A: The 168102K100A-F operates from -55°C to +125°C, compared to the DLR1D1K-F range of -40°C to +85°C. This extended range is a characteristic of the 168 series design and does not affect substitution validity for applications within the original temperature specification.

Q: What is the impact of different lead spacing on PCB design?

A: Lead spacing of 3.50mm (DLR1D1K-F) versus 5.00mm (168102K100A-F) requires different pad patterns on the PCB. Existing PCBs designed for the DLR1D1K-F cannot accommodate the 168102K100A-F without layout modification. New designs should specify the 168102K100A-F to leverage its active production status and improved availability.

Q: Is the 168102K100A-F available in higher quantities than the DLR1D1K-F?

A: The 168102K100A-F is in active production with current inventory of 1214 pieces, while the obsolete DLR1D1K-F has limited remaining stock of 1008 pieces. For new procurement, the 168102K100A-F provides superior supply chain continuity.

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