1812SC471MAT1A Equivalent & Substitute Parts

Part Overview

The 1812SC471MAT1A is a 470 pF ceramic capacitor rated at 1500V (1.5kV) with X7R temperature coefficient, manufactured by KYOCERA AVX in 1812 (4532 Metric) surface mount package. This component is classified as Active and RoHS3 Compliant, suitable for general purpose high voltage applications. Substitute parts are identified when design requirements demand enhanced voltage ratings, improved capacitance tolerance, or alternative temperature coefficient characteristics while maintaining the same physical footprint and capacitance value.

Substiute Parts

1812SC471MAT1A

KYOCERA AVXIn Stock: 11481812SC471MAT1A Datasheet

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1812GA471JAT1A

KYOCERA AVXIn Stock: 33631812GA471JAT1A Datasheet

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1812GC471KAT1A

KYOCERA AVXIn Stock: 24051812GC471KAT1A Datasheet

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1812HC471KAT1A

KYOCERA AVXIn Stock: 86941812HC471KAT1A Datasheet

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KGM43ER73U471KV

KYOCERA AVXIn Stock: 1150KGM43ER73U471KV Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1812SC471MAT1A is determined by the following allowable parameter variations:

Voltage Rating: Substitute parts may have equal or higher voltage ratings (2000V or 3000V) to provide design margin or accommodate circuit requirement changes.

Capacitance Tolerance: Substitute parts may have tighter tolerance specifications (±5% or ±10%) compared to the original ±20%, improving circuit performance where precision is required.

Temperature Coefficient: Substitute parts may use C0G/NP0 (superior temperature stability) or maintain X7R characteristics, depending on application thermal requirements.

Physical Footprint: All substitute parts maintain the identical 1812 (4532 Metric) package dimensions (4.60mm × 3.20mm), ensuring direct PCB compatibility.

Compliance & Certifications: All substitute parts maintain RoHS3 Compliance, MSL 1 rating, and REACH Unaffected status, ensuring regulatory equivalence.

Parameter Comparison

Engineering Selection Recommendations

1812GA471JAT1A (2000V, ±5%, C0G/NP0): Select this substitute when circuit design requires improved capacitance tolerance (±5% versus ±20%) and superior temperature stability through C0G/NP0 characteristics. The 2000V rating provides 33% voltage margin above the original 1500V specification. All compliance certifications remain equivalent.

1812GC471KAT1A (2000V, ±10%, X7R): Select this substitute when maintaining X7R temperature coefficient is required while upgrading to 2000V rating. The ±10% tolerance provides moderate precision improvement. This part maintains identical thickness (1.80mm) to the original component.

1812HC471KAT1A (3000V, ±10%, X7R): Select this substitute when maximum voltage margin is required within the 1812 package envelope. The 3000V rating provides 100% voltage headroom above the original specification. X7R characteristics and ±10% tolerance remain consistent with 1812GC471KAT1A.

KGM43ER73U471KV (3000V, ±10%, X7R, KGM - HV Series): Select this substitute as an alternative 3000V option from the KGM High Voltage series. Electrical specifications match 1812HC471KAT1A. All compliance and regulatory certifications remain equivalent.

All substitute parts are Active status components with full RoHS3 Compliance, MSL 1 rating, and REACH Unaffected designation, ensuring direct regulatory and environmental equivalence to the original 1812SC471MAT1A.

Frequently Asked Questions (FAQ)

Q: Can 1812SC471MAT1A be directly replaced with any of these substitute parts on existing PCBs?

A: Yes. All substitute parts maintain the identical 1812 (4532 Metric) package footprint (4.60mm × 3.20mm) and surface mount mounting type, ensuring direct PCB compatibility without layout modifications.

Q: What is the primary difference between 1812GA471JAT1A and the other substitutes?

A: The 1812GA471JAT1A uses C0G/NP0 temperature coefficient, which provides superior temperature stability compared to X7R. It also offers the tightest capacitance tolerance at ±5%. The other three substitutes maintain X7R characteristics with ±10% tolerance.

Q: Why would I select a higher voltage rated part if my circuit only requires 1500V?

A: Higher voltage ratings provide design margin for voltage transients, component aging, and circuit tolerance stack-up. The 2000V and 3000V options offer 33% and 100% voltage headroom respectively, improving circuit reliability without changing physical dimensions or compliance status.

Q: Are all substitute parts RoHS3 Compliant?

A: Yes. All substitute parts listed—1812GA471JAT1A, 1812GC471KAT1A, 1812HC471KAT1A, and KGM43ER73U471KV—are RoHS3 Compliant with MSL 1 (Unlimited) rating and REACH Unaffected status, maintaining full regulatory equivalence to the original 1812SC471MAT1A.

Q: What is the difference between 1812HC471KAT1A and KGM43ER73U471KV?

A: Both parts share identical electrical specifications (470 pF, 3000V, ±10%, X7R, -55°C ~ 125°C) and physical dimensions. The KGM43ER73U471KV is designated as part of the KGM High Voltage series. Selection between them depends on supply chain availability and procurement preferences.

Q: Can I use 1812GA471JAT1A if my design specifies X7R temperature coefficient?

A: No. The 1812GA471JAT1A uses C0G/NP0 temperature coefficient, which differs from X7R. If X7R is a design requirement, select 1812GC471KAT1A, 1812HC471KAT1A, or KGM43ER73U471KV instead.

Q: What is the thickness difference between the original part and substitutes?

A: The original 1812SC471MAT1A has a maximum thickness of 1.80mm. The 1812GA471JAT1A has a maximum thickness of 2.20mm due to its higher voltage rating. The other three substitutes (1812GC471KAT1A, 1812HC471KAT1A, KGM43ER73U471KV) maintain the 1.80mm maximum thickness.