Equivalent & Substitute Parts for 1825Y2000684MXT

Part Overview

The 1825Y2000684MXT is a 0.68 µF ceramic capacitor rated at 200V with X7R temperature coefficient, manufactured by Knowles Syfer. This multilayer ceramic capacitor (MLCC) is designed for surface mount applications in the 1825 (4564 Metric) package format. The part features soft termination technology and is classified as Boardflex Sensitive, making it suitable for flexible PCB applications. The component is currently in active production status with 757 units available in inventory.

Equivalent and substitute parts are identified based on matching critical electrical and mechanical parameters that ensure functional compatibility within the specified application requirements.

Substiute Parts

1825Y2000684MXT

Knowles SyferIn Stock: 7771825Y2000684MXT Datasheet

Current PartRFQ

C1825X684K2RAC7800

KEMETIn Stock: 3782C1825X684K2RAC7800 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1825Y2000684MXT is determined by the following critical parameters:

• Capacitance Value: 0.68 µF (exact match required)
• Voltage Rating: 200V (minimum requirement; higher ratings acceptable)
• Temperature Coefficient: X7R (ensures stable capacitance across operating temperature range)
• Package Format: 1825 (4564 Metric) (physical and electrical compatibility)
• Mounting Type: Surface Mount, MLCC (assembly process compatibility)
• Operating Temperature Range: -55°C ~ 125°C (functional envelope)
• Soft Termination Feature: Required for Boardflex Sensitive applications
• Compliance: ROHS3 Compliant, REACH Unaffected (regulatory alignment)

The substitute part C1825X684K2RAC7800 from KEMET meets all critical substitution criteria. Tolerance variation (±10% versus ±20%) represents an improvement in capacitance accuracy and does not restrict substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

Both the 1825Y2000684MXT and C1825X684K2RAC7800 are active production components with full ROHS3 compliance and REACH unaffected status. The KEMET substitute offers improved capacitance tolerance (±10% versus ±20%), which provides tighter performance specifications for applications requiring enhanced accuracy. The reduced thickness of the KEMET part (1.45mm versus 2.50mm) may provide design flexibility for space-constrained applications while maintaining full electrical and mechanical compatibility. Both parts are rated for unlimited moisture sensitivity (MSL 1), eliminating moisture-related handling constraints. Selection between these parts should be based on tolerance requirements, available inventory, and specific PCB thickness constraints.

Frequently Asked Questions (FAQ)

Q: Can C1825X684K2RAC7800 be used as a direct replacement for 1825Y2000684MXT?

A: Yes. Both parts share identical capacitance (0.68 µF), voltage rating (200V), temperature coefficient (X7R), package format (1825), and operating temperature range (-55°C ~ 125°C). The KEMET part features improved tolerance (±10%) and reduced thickness, both of which are compatible with the original application requirements.

Q: What is the significance of the tolerance difference between ±20% and ±10%?

A: Tolerance defines the acceptable deviation of actual capacitance from the nominal value. The KEMET substitute with ±10% tolerance provides tighter capacitance accuracy, which is beneficial for applications with strict performance specifications. This represents an improvement over the original ±20% tolerance and does not restrict substitution.

Q: Are there physical compatibility concerns due to the thickness difference?

A: The KEMET part is thinner (1.45mm versus 2.50mm). This difference is within the 1825 package specification and does not affect electrical performance. Verify that the reduced thickness accommodates your PCB design and assembly process requirements.

Q: Do both parts meet the same compliance standards?

A: Yes. Both 1825Y2000684MXT and C1825X684K2RAC7800 are ROHS3 compliant and REACH unaffected, ensuring regulatory alignment for equivalent applications.

Q: What does Soft Termination mean for Boardflex Sensitive applications?

A: Soft Termination is a design feature that reduces mechanical stress on component terminations during flexing of the PCB. Both parts include this feature, making them suitable for flexible circuit board applications without additional qualification.