CLLE1AX7S0J684M050AC Equivalent & Substitute Parts

Part Overview

The CLLE1AX7S0J684M050AC is a 0.68 µF ceramic capacitor manufactured by TDK Corporation, rated for 6.3V with X7S temperature coefficient in 0805 (2012 Metric) package. This part is classified as obsolete, necessitating identification of equivalent alternatives that maintain functional compatibility for bypass and decoupling applications. Substitute parts must preserve the core electrical specifications: 0.68 µF capacitance, ±20% tolerance, 6.3V minimum rated voltage, and surface mount MLCC construction in compatible package geometries.

Substiute Parts

CLLE1AX7S0J684M050AC

TDK CorporationIn Stock: 1179CLLE1AX7S0J684M050AC Datasheet

Current PartRFQ

W2L16C684MAT1S

KYOCERA AVXIn Stock: 1173W2L16C684MAT1S Datasheet

DirectRFQ

C0805C684M8RAC7800

KEMETIn Stock: 1089C0805C684M8RAC7800 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following mandatory parameters:

• Capacitance: Must be 0.68 µF ±20%
• Voltage Rating: Must be ≥6.3V (higher ratings are acceptable for backward compatibility)
• Temperature Coefficient: X7S or X7R (both provide -55°C ~ 125°C operating range)
• Mounting Type: Surface Mount, MLCC only
• Package Compatibility: 0805 (2012 Metric) or mechanically compatible alternatives
• Moisture Sensitivity: MSL 1 (Unlimited) preferred for equivalent handling

The identified substitutes meet these criteria with variations in manufacturer, temperature coefficient designation (X7R vs. X7S), and rated voltage (6.3V or 10V).

Parameter Comparison

Engineering Selection Recommendations

C0805C684M8RAC7800 (KEMET) is the primary recommended substitute. It maintains identical package geometry (0805/2012 Metric), matching footprint and PCB layout requirements. The 10V rated voltage provides margin above the 6.3V requirement. ROHS3 compliance and active product status ensure long-term availability and regulatory alignment. The X7R temperature coefficient provides equivalent thermal stability across the -55°C ~ 125°C operating range.

W2L16C684MAT1S (KYOCERA AVX) is a secondary alternative with identical electrical specifications and MSL rating. However, the 0508 (1220 Metric) package differs from the original 0805 footprint, requiring PCB layout modification. This substitute is suitable only when board redesign is feasible. Active product status and REACH compliance support its use in new designs.

Both substitutes are active products with current manufacturing status, ensuring supply chain continuity compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can W2L16C684MAT1S be used as a direct drop-in replacement?

A: No. The W2L16C684MAT1S uses 0508 (1220 Metric) package versus the original 0805 (2012 Metric). Physical dimensions differ: 0.050" L x 0.080" W versus 0.079" L x 0.049" W. PCB footprint modification is required.

Q: Why does C0805C684M8RAC7800 have a higher voltage rating (10V vs. 6.3V)?

A: Higher voltage ratings are acceptable substitutes for lower-voltage applications. The 10V rating provides additional safety margin and does not affect performance in 6.3V circuits. Capacitance and tolerance remain identical.

Q: Are X7S and X7R temperature coefficients interchangeable?

A: Both X7S and X7R provide equivalent temperature stability across -55°C ~ 125°C. X7R is a more common industry standard. Both are suitable for bypass and decoupling applications with identical operating ranges.

Q: What is the impact of the thickness difference in C0805C684M8RAC7800?

A: C0805C684M8RAC7800 has maximum thickness of 0.039" (1.00mm) versus 0.022" (0.55mm) for the original part. Verify PCB clearance and component stacking requirements before selection. This may affect board assembly in space-constrained designs.

Q: Are all substitutes MSL 1 rated?

A: Yes. All identified substitutes carry MSL 1 (Unlimited) rating, matching the original part's moisture sensitivity classification. No special storage or handling procedures are required.

Q: Which substitute offers the best supply chain continuity?

A: C0805C684M8RAC7800 (KEMET) is recommended for supply continuity. It maintains original package geometry, is actively manufactured, and carries ROHS3 compliance certification.