CD17CD020DO3 Mica Capacitor Equivalent & Substitute Parts

Part Overview

The CD17CD020DO3 is a 2 pF mica capacitor rated for 500 V operation, manufactured by Cornell Dubilier Electronics (CDE). This radial through-hole component is designed for RF applications requiring high Q and low loss characteristics. The part is currently active in production with 1,097 units in stock.

Identification of equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate varying compliance requirements across different manufacturing and regulatory environments.

Key Parameters

Parameter	Value
Capacitance	2 pF
Tolerance	±0.5 pF
Voltage Rating	500 V
Dielectric Material	Mica
Operating Temperature Range	-55°C to 150°C
Mounting Type	Through Hole
Package Type	Radial
Lead Spacing	0.232" (5.90 mm)
Physical Dimensions	0.449" L × 0.169" W (11.40 mm × 4.30 mm)
Height (Seated Max)	0.358" (9.10 mm)
Features	RF, High Q, Low Loss
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CD17CD020DO3 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must match the following criteria:

Capacitance value: 2 pF
Tolerance: ±0.5 pF
Voltage rating: 500 V
Dielectric material: Mica
Operating temperature range: -55°C to 150°C
Mounting type: Through Hole
Package configuration: Radial
Lead spacing: 0.232" (5.90 mm)
Physical dimensions: 0.449" L × 0.169" W
Height (seated): 0.358" (9.10 mm) maximum

The CD17CD020DO3F meets all these requirements and is classified as a parametric equivalent. Differences between the main part and substitute are limited to regulatory compliance status and inventory availability.

Parameter Comparison

Parameter	CD17CD020DO3	CD17CD020DO3F	Match Status
Manufacturer	Cornell Dubilier Electronics (CDE)	Cornell Dubilier Electronics (CDE)	Identical
Series	CD17	CD17	Identical
Capacitance	2 pF	2 pF	Identical
Tolerance	±0.5 pF	±0.5 pF	Identical
Voltage Rating	500 V	500 V	Identical
Dielectric Material	Mica	Mica	Identical
Operating Temperature	-55°C to 150°C	-55°C to 150°C	Identical
Mounting Type	Through Hole	Through Hole	Identical
Package Type	Radial	Radial	Identical
Lead Spacing	0.232" (5.90 mm)	0.232" (5.90 mm)	Identical
Physical Dimensions	0.449" L × 0.169" W (11.40 mm × 4.30 mm)	0.449" L × 0.169" W (11.40 mm × 4.30 mm)	Identical
Height (Seated Max)	0.358" (9.10 mm)	0.358" (9.10 mm)	Identical
Features	RF, High Q, Low Loss	RF, High Q, Low Loss	Identical
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Identical
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Different
REACH Status	REACH Affected	REACH Unaffected	Different
ECCN	EAR99	EAR99	Identical
HTSUS Code	8532.29.0020	8532.29.0020	Identical
Inventory	1,097 Pcs	976 Pcs	Different

Engineering Selection Recommendations

The CD17CD020DO3F is a direct parametric equivalent to the CD17CD020DO3. Both parts are manufactured by Cornell Dubilier Electronics within the CD17 series and share identical electrical specifications, mechanical dimensions, and performance characteristics.

Compliance Considerations:

The primary distinction between these parts is regulatory compliance status. The CD17CD020DO3F is ROHS3 compliant and REACH unaffected, whereas the CD17CD020DO3 is RoHS non-compliant and REACH affected. Selection between these parts should be based on the specific regulatory requirements of the end application and target market.

Inventory Status:

Both parts are active in production. The CD17CD020DO3 has 1,097 units in stock, while the CD17CD020DO3F has 976 units available. Selection may be influenced by immediate availability requirements.

Application Compatibility:

Both parts are suitable for RF applications requiring high Q and low loss performance. The identical operating temperature range (-55°C to 150°C), voltage rating (500 V), and physical form factor ensure direct functional interchangeability in circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the CD17CD020DO3F be used as a direct replacement for the CD17CD020DO3?

A: Yes. The CD17CD020DO3F is a parametric equivalent with identical capacitance (2 pF), tolerance (±0.5 pF), voltage rating (500 V), temperature range (-55°C to 150°C), and physical dimensions. Both parts are through-hole radial components with 0.232" lead spacing and are suitable for RF applications.

Q: What is the difference between these two parts?

A: The electrical and mechanical specifications are identical. The differences are limited to regulatory compliance: the CD17CD020DO3F is ROHS3 compliant and REACH unaffected, while the CD17CD020DO3 is RoHS non-compliant and REACH affected. Inventory levels also differ slightly.

Q: Are there any physical or dimensional differences?

A: No. Both parts have identical dimensions: 0.449" L × 0.169" W (11.40 mm × 4.30 mm), with a maximum seated height of 0.358" (9.10 mm). Lead spacing is 0.232" (5.90 mm) for both parts.

Q: Which part should I select for a new design?

A: Selection depends on regulatory requirements. For applications requiring RoHS3 compliance or REACH compliance, use the CD17CD020DO3F. For applications without these requirements, either part is suitable based on availability.

Q: Are both parts suitable for RF applications?

A: Yes. Both the CD17CD020DO3 and CD17CD020DO3F feature RF, high Q, and low loss characteristics and are designed for RF circuit applications.

Q: What is the operating temperature range for both parts?

A: Both parts operate across the temperature range of -55°C to 150°C.

Q: Is the moisture sensitivity level the same for both parts?

A: Yes. Both parts have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.

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