CD42FD473JO3F Equivalent & Substitute Parts

Part Overview

The CD42FD473JO3F is a 0.047 µF mica capacitor rated for 500 V operation, manufactured by Cornell Dubilier Electronics (CDE) in the CD42 series. This through-hole radial component is designed for general-purpose applications requiring stable capacitance and high voltage performance across an operating temperature range of -55°C to 125°C. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Substitute parts are identified when inventory constraints, compliance requirements, or procurement lead times necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	0.047 µF
Tolerance	±5%
Voltage - Rated	500 V
Dielectric Material	Mica
Operating Temperature Range	-55°C to 125°C
Mounting Type	Through Hole
Package / Case	Radial
Lead Spacing	1.063" (27.00 mm)
Size / Dimension	1.469" L x 0.449" W (37.30 mm x 11.40 mm)
Height - Seated (Max)	0.909" (23.10 mm)
Series	CD42
Manufacturer	Cornell Dubilier Electronics (CDE)

Substitute Part Grouping Explanation

Substitute parts for the CD42FD473JO3F are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Electrical Parameters (Must Match Exactly):

Capacitance: 0.047 µF
Tolerance: ±5%
Voltage Rating: 500 V
Dielectric Material: Mica

Mechanical Parameters (Must Match Exactly):

Mounting Type: Through Hole
Package / Case: Radial
Lead Spacing: 1.063" (27.00 mm)
Physical Dimensions: 1.469" L x 0.449" W (37.30 mm x 11.40 mm)
Height - Seated (Max): 0.909" (23.10 mm)

Environmental Parameters (Must Match Exactly):

Operating Temperature Range: -55°C to 125°C

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes. Compliance status and inventory availability are secondary factors that do not affect electrical or mechanical interchangeability.

Parameter Comparison

Parameter	CD42FD473JO3F (Main Part)	CD42FD473JO3 (Substitute)
Manufacturer	Cornell Dubilier Electronics (CDE)	Cornell Dubilier Electronics (CDE)
Series	CD42	CD42
Capacitance	0.047 µF	0.047 µF
Tolerance	±5%	±5%
Voltage - Rated	500 V	500 V
Dielectric Material	Mica	Mica
Operating Temperature	-55°C to 125°C	-55°C to 125°C
Mounting Type	Through Hole	Through Hole
Package / Case	Radial	Radial
Lead Spacing	1.063" (27.00 mm)	1.063" (27.00 mm)
Size / Dimension	1.469" L x 0.449" W (37.30 mm x 11.40 mm)	1.469" L x 0.449" W (37.30 mm x 11.40 mm)
Height - Seated (Max)	0.909" (23.10 mm)	0.909" (23.10 mm)
Product Status	Active	Active
RoHS Status	ROHS3 Compliant	RoHS non-compliant
REACH Status	REACH Unaffected	REACH Affected
Inventory	1134 Pcs New Original In Stock	711 Pcs New Original In Stock

Engineering Selection Recommendations

CD42FD473JO3F (Primary Selection): This part is the preferred choice for new designs and applications requiring regulatory compliance. It carries ROHS3 compliance and REACH unaffected status, making it suitable for applications subject to environmental and hazardous substance restrictions. Current inventory of 1134 units supports immediate procurement.

CD42FD473JO3 (Substitute Selection): This part is electrically and mechanically identical to the primary part and serves as a direct substitute when CD42FD473JO3F is unavailable. However, it is RoHS non-compliant and REACH affected. Selection of this substitute should be limited to applications where regulatory compliance is not a requirement or where legacy system maintenance justifies its use. Current inventory of 711 units is available.

Both parts are active products from Cornell Dubilier Electronics and share identical electrical performance, temperature characteristics, and physical form factor. The choice between them is determined by compliance requirements and inventory availability rather than technical performance.

Frequently Asked Questions (FAQ)

Q: Can CD42FD473JO3 be used in place of CD42FD473JO3F?

A: Yes. Both parts are parametric equivalents with identical capacitance (0.047 µF), voltage rating (500 V), tolerance (±5%), dielectric material (mica), operating temperature range (-55°C to 125°C), and physical dimensions. They are electrically and mechanically interchangeable. The primary difference is compliance status: CD42FD473JO3F is ROHS3 compliant and REACH unaffected, while CD42FD473JO3 is RoHS non-compliant and REACH affected.

Q: What are the critical parameters for substitution?

A: Substitution requires exact matching of: capacitance value (0.047 µF), voltage rating (500 V), tolerance (±5%), dielectric type (mica), mounting configuration (through-hole radial), lead spacing (1.063" / 27.00 mm), and physical dimensions (1.469" L x 0.449" W x 0.909" H max). Any deviation in these parameters disqualifies a part as a direct substitute.

Q: Are there any physical compatibility concerns when substituting?

A: No. Both parts have identical lead spacing (1.063" / 27.00 mm), body dimensions (1.469" L x 0.449" W), and maximum seated height (0.909"). They fit the same PCB footprint and mounting holes without modification.

Q: Which part should be selected for new product designs?

A: CD42FD473JO3F is the recommended choice for new designs due to ROHS3 compliance and REACH unaffected status. This ensures compatibility with current environmental regulations and reduces future compliance risks.

Q: Can these parts be used interchangeably in existing assemblies?

A: Yes, provided the application does not have specific compliance requirements. Both parts deliver identical electrical performance and occupy the same physical space. Substitution is transparent from a functional standpoint.

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

A: Both CD42FD473JO3F and CD42FD473JO3 operate across -55°C to 125°C, ensuring stable capacitance performance across this full temperature spectrum.

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