C1608JB1H334K080AB Equivalent & Substitute Parts

Part Overview

The C1608JB1H334K080AB is a 0.33 µF ±10% 50V ceramic capacitor manufactured by TDK Corporation in 0603 (1608 Metric) package with JB temperature coefficient. This part is designated as Last Time Buy, indicating it is no longer in active production. Equivalent and substitute parts are necessary to ensure design continuity and maintain supply chain reliability for applications requiring this capacitance and voltage rating.

Substiute Parts

C1608JB1H334K080AB

TDK CorporationIn Stock: 7620C1608JB1H334K080AB Datasheet

Current PartRFQ

C1608X5R1H334K080AB

TDK CorporationIn Stock: 25655C1608X5R1H334K080AB Datasheet

MFR RecommendedRFQ

C1608X6S1H334K080AB

TDK CorporationIn Stock: 9755C1608X6S1H334K080AB Datasheet

MFR RecommendedRFQ

C1608X7R1H334K080AC

TDK CorporationIn Stock: 515881C1608X7R1H334K080AC Datasheet

MFR RecommendedRFQ

C0805C334K5RAC7800

KEMETIn Stock: 44591C0805C334K5RAC7800 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the C1608JB1H334K080AB is determined by the following criteria:

Primary Matching Parameters:

• Capacitance: 0.33 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating: 50V (exact match or higher acceptable)
• Package: 0603 (1608 Metric) or larger package with compatible footprint
• Mounting Type: Surface Mount, MLCC (exact match required)
• RoHS Compliance: ROHS3 Compliant (maintained across all substitutes)

Secondary Consideration:

• Temperature Coefficient: JB (-25°C ~ 85°C) can be substituted with X5R (-55°C ~ 85°C), X6S (-55°C ~ 105°C), or X7R (-55°C ~ 125°C) as these provide equal or extended operating temperature ranges

Substitute parts are grouped by temperature coefficient capability and package size, with all maintaining identical capacitance, tolerance, and voltage specifications.

Parameter Comparison

Engineering Selection Recommendations

For 0603 Package Continuity: The C1608X7R1H334K080AC is the preferred substitute within the 0603 (1608 Metric) package family. It maintains identical footprint and mounting characteristics while providing extended operating temperature range (-55°C ~ 125°C). This part carries Active product status and offers the highest inventory availability (515,806 pcs), ensuring long-term supply reliability.

For Extended Temperature Performance: The C1608X6S1H334K080AB provides intermediate temperature capability (-55°C ~ 105°C) with the same 0603 package, suitable for applications requiring performance between JB and X7R specifications.

For Broader Supply Options: The C1608X5R1H334K080AB offers equivalent performance within the JB operating temperature range (-55°C ~ 85°C) with significantly higher inventory (25,624 pcs).

For Package Size Flexibility: The C0805C334K5RAC7800 (KEMET) is a cross-manufacturer substitute with Active product status. The 0805 (2012 Metric) package is physically larger and requires PCB layout modification. This option is suitable only when board space permits and footprint redesign is feasible.

Frequently Asked Questions (FAQ)

Q: Can I use C1608X7R1H334K080AC as a direct replacement for C1608JB1H334K080AB?

A: Yes. Both parts share identical capacitance (0.33 µF), tolerance (±10%), voltage rating (50V), and 0603 package dimensions. The X7R temperature coefficient provides extended operating range (-55°C ~ 125°C) compared to JB (-25°C ~ 85°C), making it a compatible substitute for general purpose applications.

Q: What is the difference between JB, X5R, X6S, and X7R temperature coefficients?

A: These designations specify the capacitance change over operating temperature. JB covers -25°C ~ 85°C, X5R covers -55°C ~ 85°C, X6S covers -55°C ~ 105°C, and X7R covers -55°C ~ 125°C. Selection depends on the application's thermal environment. All four types maintain ±10% tolerance within their respective ranges.

Q: Can I use the C0805C334K5RAC7800 (0805 package) instead of the 0603 package?

A: The C0805C334K5RAC7800 is electrically equivalent but physically larger (0.079" x 0.049" vs. 0.063" x 0.031"). It requires PCB footprint modification and is suitable only when board layout permits the larger package size.

Q: Why is C1608JB1H334K080AB marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production. Substitute parts ensure design continuity and supply chain stability for existing applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental certifications.

Q: Which substitute offers the best long-term availability?

A: The C1608X7R1H334K080AC carries Active product status with the highest inventory (515,806 pcs), providing the most reliable long-term supply option.