CD19FD821JO3F Equivalent & Substitute Parts

Part Overview

The CD19FD821JO3F is an 820 pF 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 from -55°C to 125°C. Substitute parts are identified when original inventory becomes unavailable or when design requirements permit alternative part numbers within the same electrical and mechanical specifications.

Substiute Parts

CD19FD821JO3F

Cornell Dubilier Electronics (CDE)In Stock: 1035CD19FD821JO3F Datasheet

Current PartRFQ

CD19FD821JO3

Cornell Dubilier Electronics (CDE)In Stock: 2123CD19FD821JO3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD19FD821JO3F is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

• Capacitance: 820 pF
• Tolerance: ±5%
• Voltage Rating: 500 V
• Dielectric Material: Mica

Mechanical Parameters (Must Match Exactly):

• Mounting Type: Through Hole
• Package / Case: Radial
• Lead Spacing: 0.343" (8.70 mm)
• Physical Dimensions: 0.650" L x 0.209" W (16.50 mm x 5.30 mm)
• Height - Seated (Max): 0.512" (13.00 mm)

Performance Parameters (Must Match Exactly):

• Operating Temperature Range: -55°C to 125°C
• Features: General Purpose

The substitute part CD19FD821JO3 meets all electrical and mechanical requirements for direct substitution. Both parts are manufactured by Cornell Dubilier Electronics within the CD19 series and maintain identical functional specifications.

Parameter Comparison

Engineering Selection Recommendations

CD19FD821JO3F Selection Criteria:

• Applications requiring ROHS3 compliance
• Designs subject to REACH Unaffected regulatory requirements
• When ROHS3 certification is a mandatory design constraint

CD19FD821JO3 Selection Criteria:

• Applications where RoHS3 compliance is not required
• Designs where REACH Affected status is acceptable
• When higher inventory availability is advantageous
• Functionally equivalent electrical and mechanical performance to CD19FD821JO3F

Both parts deliver identical electrical performance, mechanical fit, and thermal characteristics. The primary differentiation lies in regulatory compliance status. Selection between these parts is determined by project-specific compliance requirements and regulatory environment rather than functional capability.

Frequently Asked Questions (FAQ)

Q: Can CD19FD821JO3 be used as a direct replacement for CD19FD821JO3F?

A: Yes, CD19FD821JO3 is electrically and mechanically equivalent to CD19FD821JO3F. Both parts share identical capacitance (820 pF), voltage rating (500 V), tolerance (±5%), dielectric material (mica), mounting configuration (radial through-hole), lead spacing (0.343"), and physical dimensions. The parts differ only in RoHS and REACH compliance status.

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

A: CD19FD821JO3F is ROHS3 compliant, while CD19FD821JO3 is RoHS non-compliant. ROHS3 compliance indicates adherence to the Restriction of Hazardous Substances Directive. Selection depends on whether your application or market requires ROHS3 certification.

Q: Are the physical dimensions identical?

A: Yes. Both parts have identical dimensions: 0.650" L x 0.209" W (16.50 mm x 5.30 mm), maximum seated height of 0.512" (13.00 mm), and lead spacing of 0.343" (8.70 mm). They are mechanically interchangeable in PCB layouts.

Q: Can these parts be used in high-temperature applications?

A: Yes. Both CD19FD821JO3F and CD19FD821JO3 operate across the temperature range -55°C to 125°C, making them suitable for extended temperature environments within this specification.

Q: What is the significance of REACH Affected versus REACH Unaffected status?

A: REACH Unaffected (CD19FD821JO3F) indicates the part is not subject to REACH regulatory requirements. REACH Affected (CD19FD821JO3) indicates the part is subject to REACH compliance obligations. Selection depends on regulatory requirements in your target market.

Q: Are both parts still in active production?

A: Yes. Both CD19FD821JO3F and CD19FD821JO3 maintain Active product status with Cornell Dubilier Electronics, indicating ongoing availability and support.