0805J2001P80BUT Equivalent & Substitute Parts

Part Overview

The 0805J2001P80BUT is a 1.8 pF ceramic capacitor manufactured by Knowles Syfer, designed for high-frequency applications including RF and microwave circuits. This surface-mount multilayer ceramic capacitor (MLCC) operates at 200V rated voltage with C0G/NP0 temperature coefficient, ensuring stable performance across the -55°C to 125°C operating range. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance can be maintained while accommodating design flexibility, supply chain optimization, or voltage margin requirements.

Substiute Parts

0805J2001P80BUT

Knowles SyferIn Stock: 10990805J2001P80BUT Datasheet

Current PartRFQ

0805J2501P80BUT

Knowles SyferIn Stock: 67910805J2501P80BUT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 0805J2001P80BUT is based on maintaining identical electrical and mechanical specifications across the following critical parameters:

• Capacitance value: 1.8 pF (exact match required)
• Tolerance: ±0.1pF (exact match required)
• Temperature Coefficient: C0G/NP0 (exact match required)
• Package / Case: 0805 (2012 Metric) (exact match required)
• Mounting Type: Surface Mount, MLCC (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

The substitute part 0805J2501P80BUT meets all these criteria while providing an elevated voltage rating of 250V, which represents a voltage margin upgrade. This substitution is valid because the higher voltage rating does not compromise any electrical performance parameters and maintains full compatibility with the original 200V application requirement.

Parameter Comparison

Engineering Selection Recommendations

Both the 0805J2001P80BUT and 0805J2501P80BUT are active production parts with ROHS3 compliance and REACH unaffected status. The substitute part 0805J2501P80BUT provides identical electrical performance with an increased voltage rating margin. Selection between these parts depends on application voltage requirements and supply availability. The 250V rated substitute is suitable for any application originally specified for 200V operation, providing additional design margin without altering circuit behavior. Both parts maintain the same physical footprint, thermal characteristics, and frequency response properties required for RF and microwave applications.

Frequently Asked Questions (FAQ)

Q: Can 0805J2501P80BUT replace 0805J2001P80BUT in a 200V application?

A: Yes. The substitute part maintains identical capacitance (1.8 pF), tolerance (±0.1pF), temperature coefficient (C0G/NP0), and physical dimensions. The 250V rating exceeds the 200V requirement, providing additional voltage margin without affecting circuit performance.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts use the 0805 (2012 Metric) package with dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm) and maximum thickness of 0.051" (1.30mm). They are mechanically interchangeable on the PCB.

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

A: The primary difference is the rated voltage: 0805J2001P80BUT is rated at 200V, while 0805J2501P80BUT is rated at 250V. All other electrical and mechanical specifications remain identical.

Q: Are both parts RoHS compliant?

A: Yes. Both 0805J2001P80BUT and 0805J2501P80BUT are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level).

Q: Can these parts be used interchangeably in RF and microwave circuits?

A: Yes. Both parts feature identical high Q, low loss, and ultra-low ESR characteristics required for RF and microwave applications. The electrical performance is equivalent across the specified operating temperature range of -55°C to 125°C.