C2012JB1A336M125AC Equivalent & Substitute Parts

Part Overview

The C2012JB1A336M125AC is a 33 µF ±20% 10V ceramic capacitor manufactured by TDK Corporation in 0805 (2012 Metric) surface mount package. This component features low ESL characteristics and is designed for general purpose applications. The part is currently in Last Time Buy status, indicating limited availability and the need to identify suitable alternatives for ongoing procurement and design requirements.

Substiute Parts

C2012JB1A336M125AC

TDK CorporationIn Stock: 8087C2012JB1A336M125AC Datasheet

Current PartRFQ

C2012X5R1A336M125AC

TDK CorporationIn Stock: 88519C2012X5R1A336M125AC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The C2012X5R1A336M125AC qualifies as a direct substitute based on the following critical parameters:

• Capacitance: 33 µF (identical)
• Tolerance: ±20% (identical)
• Voltage Rating: 10V (identical)
• Package / Case: 0805 (2012 Metric) (identical)
• Mounting Type: Surface Mount, MLCC (identical)
• Physical Dimensions: 0.079" L x 0.049" W, 0.057" max thickness (identical)
• RoHS Status: ROHS3 Compliant (identical)
• Moisture Sensitivity Level: 1 (Unlimited) (identical)

The primary difference is the temperature coefficient specification: the substitute uses X5R instead of JB. The X5R coefficient provides an extended operating temperature range of -55°C ~ 85°C compared to the original -25°C ~ 85°C, making it suitable for applications requiring broader temperature performance while maintaining all other electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The C2012X5R1A336M125AC is the recommended substitute for the C2012JB1A336M125AC. Both parts are manufactured by TDK Corporation and maintain identical electrical specifications (33 µF, ±20%, 10V) and physical form factor (0805 package). Both components are ROHS3 compliant and carry MSL Level 1 rating, ensuring equivalent environmental and regulatory compliance.

The substitute part offers the advantage of Active product status, ensuring continued availability and supply chain stability compared to the Last Time Buy status of the original part. The extended operating temperature range (-55°C to 85°C versus -25°C to 85°C) of the X5R variant provides additional thermal margin for applications operating in lower temperature environments.

Frequently Asked Questions (FAQ)

Q: Can the C2012X5R1A336M125AC be used as a direct replacement for the C2012JB1A336M125AC?

A: Yes. Both parts share identical capacitance (33 µF), tolerance (±20%), voltage rating (10V), and 0805 package dimensions. The substitute maintains full mechanical and electrical compatibility for standard applications within the original operating temperature range.

Q: What is the difference between JB and X5R temperature coefficients?

A: JB and X5R are temperature coefficient classifications for ceramic capacitors. The X5R coefficient provides a wider operating temperature range (-55°C to 85°C) compared to JB (-25°C to 85°C). Both maintain the specified capacitance tolerance across their respective temperature ranges.

Q: Why is the substitute part in Active status while the original is Last Time Buy?

A: Product status reflects manufacturer lifecycle management. Last Time Buy indicates the original part is being discontinued. The substitute, being in Active status, ensures ongoing availability and is the recommended choice for new designs and continued procurement.

Q: Are there any package or mounting differences between these parts?

A: No. Both parts use identical 0805 (2012 Metric) surface mount packages with matching physical dimensions (0.079" L x 0.049" W x 0.057" max thickness) and are compatible with standard PCB assembly processes.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the C2012JB1A336M125AC and C2012X5R1A336M125AC are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent regulatory and environmental compliance.