MC18FD101F-TF Equivalent & Substitute Parts

Part Overview

The MC18FD101F-TF is a 100 pF mica capacitor manufactured by Cornell Dubilier Electronics (CDE) in the MC series. This surface mount component operates at 500 V rated voltage with ±1% tolerance and is housed in a 1812 (4532 Metric) package. The part is Active in product status and features RF, High Q, and Low Loss characteristics suitable for high-frequency applications. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, design flexibility, or application-specific tolerance requirements.

Substiute Parts

MC18FD101F-TF

Cornell Dubilier Electronics (CDE)In Stock: 1185MC18FD101F-TF Datasheet

Current PartRFQ

MC18FD101J-F

Cornell Dubilier Electronics (CDE)In Stock: 983MC18FD101J-F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MC18FD101F-TF is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 100 pF (exact match required)
• Voltage - Rated: 500 V (exact match required)
• Dielectric Material: Mica (exact match required)
• Package / Case: 1812 (4532 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

Allowable Variation:

• Tolerance: ±1% to ±5% (relaxation permitted for substitute selection)

The MC18FD101J-F qualifies as a substitute part because it maintains identical electrical performance across capacitance, voltage rating, and dielectric material, while differing only in tolerance specification (±5% versus ±1%). This tolerance relaxation is permissible in applications where the tighter tolerance of the original part is not a design requirement.

Parameter Comparison

Engineering Selection Recommendations

Both the MC18FD101F-TF and MC18FD101J-F are Active products from Cornell Dubilier Electronics and maintain full compliance with ROHS3 and REACH requirements. Selection between these parts is based on tolerance requirements:

Select MC18FD101F-TF when:

• Design specifications require ±1% capacitance tolerance
• Circuit performance depends on tight capacitance control
• Application involves precision RF tuning or filtering

Select MC18FD101J-F when:

• Application tolerates ±5% capacitance variation
• Design specifications do not mandate tighter tolerance
• Inventory or cost considerations favor the substitute part

Both parts are electrically and mechanically interchangeable in PCB layout and assembly processes. No design modifications are required when substituting between these parts, provided the application tolerance requirements are satisfied.

Frequently Asked Questions (FAQ)

Q: Can MC18FD101J-F replace MC18FD101F-TF in all applications?

A: MC18FD101J-F can replace MC18FD101F-TF only in applications where ±5% capacitance tolerance is acceptable. If the circuit design requires ±1% tolerance, substitution is not appropriate.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts use the 1812 (4532 Metric) package with identical dimensions of 0.177" L x 0.126" W (4.50mm x 3.20mm) and maximum seated height of 0.079" (2.00mm). No PCB layout modifications are required.

Q: Do both parts have the same voltage rating?

A: Yes. Both MC18FD101F-TF and MC18FD101J-F are rated for 500 V operation and maintain identical electrical performance at this voltage level.

Q: What is the difference between these two part numbers?

A: The primary difference is capacitance tolerance. MC18FD101F-TF specifies ±1% tolerance (indicated by the "F" suffix), while MC18FD101J-F specifies ±5% tolerance (indicated by the "J" suffix). All other electrical and mechanical specifications are identical.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both MC18FD101F-TF and MC18FD101J-F are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the operating temperature range for these capacitors?

A: Both parts operate across the temperature range of -55°C to 125°C, providing stable performance across industrial and commercial temperature environments.

Q: Can these parts be used interchangeably in RF applications?

A: Both parts feature RF, High Q, and Low Loss characteristics. Interchangeability in RF applications depends on whether the circuit design requires the ±1% tolerance of the MC18FD101F-TF or can function with the ±5% tolerance of the MC18FD101J-F.