CD42FD333JO3F Equivalent & Substitute Parts Reference

Part Overview

The CD42FD333JO3F is a 0.033 µF mica capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 500 V operation in radial through-hole configuration. This component is classified as active product status and is suitable for general-purpose applications requiring stable capacitance and high voltage performance. Mica dielectric capacitors are selected for applications demanding low loss, excellent frequency stability, and reliable performance across extended temperature ranges. Substitute parts are identified when inventory constraints, compliance requirements, or manufacturing discontinuation necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	0.033 µF
Tolerance	±5%
Voltage Rating	500 V
Dielectric Material	Mica
Mounting Type	Through Hole
Package Type	Radial
Lead Spacing	1.063" (27.00 mm)
Operating Temperature Range	-55°C to 125°C
Physical Dimensions	1.441" L × 0.358" W (36.60 mm × 9.10 mm)
Height (Seated Max)	0.890" (22.60 mm)

Substitute Part Grouping Explanation

Substitution eligibility for the CD42FD333JO3F is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Non-Negotiable):

Capacitance value: 0.033 µF
Tolerance: ±5%
Voltage rating: 500 V
Dielectric material: Mica

Mechanical Parameters (Non-Negotiable):

Mounting type: Through Hole
Package configuration: Radial
Lead spacing: 1.063" (27.00 mm)
Physical envelope: 1.441" L × 0.358" W, height 0.890" maximum

Operational Parameters:

Temperature range: -55°C to 125°C

The substitute part CD42FD333JO3 meets all electrical and mechanical equivalence criteria. Substitution is valid based on parametric compatibility. Compliance and regulatory status differences are noted separately and do not affect functional interchangeability in circuit applications.

Parameter Comparison

Parameter	CD42FD333JO3F (Main Part)	CD42FD333JO3 (Substitute)	Equivalence
Manufacturer	Cornell Dubilier Electronics (CDE)	Cornell Dubilier Electronics (CDE)	Identical
Series	CD42	CD42	Identical
Capacitance	0.033 µF	0.033 µF	Identical
Tolerance	±5%	±5%	Identical
Voltage Rating	500 V	500 V	Identical
Dielectric Material	Mica	Mica	Identical
Mounting Type	Through Hole	Through Hole	Identical
Package Type	Radial	Radial	Identical
Lead Spacing	1.063" (27.00 mm)	1.063" (27.00 mm)	Identical
Physical Dimensions	1.441" L × 0.358" W (36.60 mm × 9.10 mm)	1.441" L × 0.358" W (36.60 mm × 9.10 mm)	Identical
Height (Seated Max)	0.890" (22.60 mm)	0.890" (22.60 mm)	Identical
Operating Temperature	-55°C to 125°C	-55°C to 125°C	Identical
Product Status	Active	Active	Identical
RoHS Status	ROHS3 Compliant	RoHS Non-Compliant	Different
REACH Status	REACH Unaffected	REACH Affected	Different
Current Inventory	1063 Pcs	715 Pcs	Different

Engineering Selection Recommendations

Primary Selection: CD42FD333JO3F

The CD42FD333JO3F is the preferred selection for new designs and applications subject to RoHS3 compliance requirements. This part carries active product status and ROHS3 compliant certification, meeting current regulatory standards for electronic component procurement in regulated industries and markets. Current inventory of 1063 units supports sustained production requirements.

Alternative Selection: CD42FD333JO3

The CD42FD333JO3 is electrically and mechanically equivalent and serves as a functional substitute when CD42FD333JO3F availability is constrained. This part maintains identical electrical performance, voltage rating, capacitance value, tolerance, and physical form factor. However, this variant is RoHS non-compliant and REACH affected. Selection of CD42FD333JO3 is appropriate only for applications where RoHS3 compliance is not mandated or where legacy system maintenance requires matching existing component specifications. Current inventory of 715 units is available.

Compliance Considerations:

Applications subject to RoHS3 directives, REACH regulations, or customer-specified compliance requirements must use CD42FD333JO3F. Applications without such constraints may use either part based on availability and cost considerations, with full awareness of the compliance status difference.

Frequently Asked Questions (FAQ)

Q: Are CD42FD333JO3F and CD42FD333JO3 electrically interchangeable?

A: Yes. Both parts are electrically identical with 0.033 µF capacitance, ±5% tolerance, and 500 V rating. They perform identically in circuit applications.

Q: Can CD42FD333JO3 be used as a direct replacement for CD42FD333JO3F?

A: CD42FD333JO3 is a functional equivalent for circuit operation. However, it is RoHS non-compliant and REACH affected, whereas CD42FD333JO3F is ROHS3 compliant and REACH unaffected. Substitution is valid only when compliance requirements do not apply to the application.

Q: Are the physical dimensions and lead spacing identical?

A: Yes. Both parts have identical radial through-hole configuration with 1.063" (27.00 mm) lead spacing, 1.441" L × 0.358" W body dimensions, and 0.890" maximum seated height. PCB layout and mechanical fit are identical.

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

A: Both CD42FD333JO3F and CD42FD333JO3 operate across -55°C to 125°C. Temperature performance is identical.

Q: Which part should be selected for new designs?

A: CD42FD333JO3F is the recommended selection for new designs due to ROHS3 compliance and active product status. This ensures alignment with current regulatory requirements and long-term supply chain stability.

Q: What is the difference in compliance status between these parts?

A: CD42FD333JO3F is ROHS3 compliant and REACH unaffected. CD42FD333JO3 is RoHS non-compliant and REACH affected. Applications requiring compliance certification must use CD42FD333JO3F.

Q: Are both parts from the same manufacturer?

A: Yes. Both parts are manufactured by Cornell Dubilier Electronics (CDE) and belong to the CD42 series.

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