Equivalent & Substitute Parts for 1808J2000472MXT

Part Overview

The 1808J2000472MXT is a 4700 pF ceramic capacitor manufactured by Knowles Syfer, rated for 200V with X7R temperature coefficient and 1808 (4520 Metric) package configuration. This component is designed for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and voltage upgrade options while maintaining functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

1808J2000472MXT

Knowles SyferIn Stock: 9561808J2000472MXT Datasheet

Current PartRFQ

C1808C472KCRAC7800

KEMETIn Stock: 1933C1808C472KCRAC7800 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 1808J2000472MXT is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Capacitance value: 4700 pF (exact match required)
• Temperature coefficient: X7R (ensures stable performance across operating temperature range)
• Package / Case: 1808 (4520 Metric) (ensures mechanical and electrical compatibility with PCB layout)
• Mounting type: Surface Mount, MLCC (maintains assembly process compatibility)
• Operating temperature range: -55°C to 125°C (functional equivalence)

Allowable Variation Parameters:

• Voltage rating: May be equal to or greater than 200V (higher voltage rating provides design margin and reliability enhancement)
• Tolerance: May be tighter than ±20% (improved capacitance accuracy)
• Physical dimensions: Minor variations within package class are acceptable if mounting compatibility is maintained

The substitute part C1808C472KCRAC7800 meets all mandatory compatibility parameters while providing an upgraded voltage rating of 500V and improved tolerance of ±10%, making it a direct functional upgrade suitable for applications requiring higher voltage margin or tighter capacitance tolerance.

Parameter Comparison

Engineering Selection Recommendations

Both the 1808J2000472MXT and C1808C472KCRAC7800 are active production components with ROHS3 compliance and identical moisture sensitivity ratings. Selection between these parts is based on application voltage requirements and tolerance specifications:

1808J2000472MXT (Knowles Syfer) is suitable for applications with 200V maximum operating voltage and where ±20% capacitance tolerance is acceptable.

C1808C472KCRAC7800 (KEMET) is suitable for applications requiring higher voltage margin (500V rating), improved capacitance accuracy (±10% tolerance), or designs where voltage derating is a design criterion. This part provides enhanced reliability through higher voltage rating and tighter tolerance specification while maintaining identical package, temperature coefficient, and operating temperature range.

Both parts maintain full compliance with REACH and RoHS3 requirements and are classified under ECCN EAR99 with identical HTSUS code 8532.24.0020.

Frequently Asked Questions (FAQ)

Q: Can C1808C472KCRAC7800 be used as a direct replacement for 1808J2000472MXT?

A: Yes. Both parts share identical capacitance (4700 pF), temperature coefficient (X7R), package (1808 / 4520 Metric), mounting type (Surface Mount MLCC), and operating temperature range (-55°C to 125°C). The substitute part provides higher voltage rating (500V vs. 200V) and tighter tolerance (±10% vs. ±20%), making it functionally compatible and electrically superior for the same application space.

Q: What are the physical dimension differences between these parts?

A: The 1808J2000472MXT has dimensions of 0.177" L x 0.079" W (4.50mm x 2.00mm) with 0.079" (2.00mm) maximum thickness. The C1808C472KCRAC7800 has dimensions of 0.185" L x 0.079" W (4.70mm x 2.00mm) with 0.061" (1.55mm) maximum thickness. Both conform to the 1808 (4520 Metric) package class and are compatible with standard 1808 PCB footprints.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, classified as EAR99, and carry identical HTSUS code 8532.24.0020. Both maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: When should the higher voltage rating of C1808C472KCRAC7800 be selected?

A: The 500V rating of C1808C472KCRAC7800 provides design margin for applications where voltage transients, overvoltage conditions, or conservative derating practices are design considerations. The higher voltage rating also extends component reliability margin in high-reliability applications.

Q: Does tolerance difference affect circuit performance?

A: The ±10% tolerance of C1808C472KCRAC7800 provides tighter capacitance accuracy compared to the ±20% tolerance of 1808J2000472MXT. Selection depends on circuit requirements for capacitance precision. Applications with strict capacitance tolerance requirements benefit from the KEMET part.