ECH-S1H682JZ Equivalent & Substitute Parts

Part Overview

The ECH-S1H682JZ is a 6800 pF film capacitor manufactured by Panasonic Electronic Components, rated for 50V DC operation with ±5% tolerance. This radial through-hole component utilizes polyphenylene sulfide (PPS) dielectric material and is designed for high-frequency and switching applications. The product is currently obsolete, making equivalent substitutes necessary for ongoing system maintenance and new designs requiring compatible performance characteristics.

Substiute Parts

ECH-S1H682JZ

Panasonic Electronic ComponentsIn Stock: 1047ECH-S1H682JZ Datasheet

Current PartRFQ

ECH-U1H682GX5

Panasonic Electronic ComponentsIn Stock: 12175ECH-U1H682GX5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECH-S1H682JZ is determined by the following critical parameters:

• Capacitance Value: Must be 6800 pF (no deviation permitted)
• Voltage Rating: Minimum 50V DC to maintain circuit safety margins
• Dielectric Material: Polyphenylene sulfide (PPS) to preserve frequency response and thermal stability
• Tolerance: ±2% or better meets or exceeds the original ±5% specification
• Operating Temperature: Must support the -40°C ~ 125°C range or equivalent

The ECH-U1H682GX5 qualifies as a functional equivalent based on matching capacitance, voltage rating, dielectric material, and operating temperature specifications. However, this substitute introduces a change in mounting technology from through-hole radial to surface-mount 1206 package, which requires circuit board redesign.

Parameter Comparison

Engineering Selection Recommendations

The ECH-U1H682GX5 provides electrical equivalence to the ECH-S1H682JZ with the following considerations:

Advantages of the substitute:

• Active product status ensures long-term availability and supply chain stability
• ROHS3 compliance supports modern manufacturing and environmental standards
• Improved tolerance (±2% vs. ±5%) provides tighter capacitance control
• Extended lower temperature rating (-55°C vs. -40°C) expands operational envelope

Design Impact:

• Mounting technology transition from through-hole to surface-mount requires PCB redesign
• Package footprint change from radial to 1206 (3.20mm × 1.60mm) necessitates layout modification
• Metallized-stacked dielectric construction differs from standard PPS film, affecting physical characteristics

Selection of the ECH-U1H682GX5 is appropriate for new designs or redesigned assemblies where surface-mount technology is acceptable. For direct replacement in existing through-hole assemblies without PCB modification, alternative through-hole equivalents with matching package geometry must be sourced.

Frequently Asked Questions (FAQ)

Q: Can the ECH-U1H682GX5 be used as a direct drop-in replacement for the ECH-S1H682JZ?

A: No. While both components share identical capacitance, voltage rating, and dielectric material, the ECH-U1H682GX5 uses surface-mount 1206 packaging versus the through-hole radial package of the original part. Direct substitution requires PCB redesign and assembly process changes.

Q: What is the significance of the tolerance difference between ±5% and ±2%?

A: The ±2% tolerance of the substitute provides tighter capacitance control, meaning the actual value will remain closer to the nominal 6800 pF specification. This is a performance improvement over the original ±5% tolerance and does not create compatibility issues.

Q: Does the metallized-stacked dielectric construction of the ECH-U1H682GX5 affect circuit performance?

A: Both components use polyphenylene sulfide (PPS) dielectric material. The metallized-stacked construction in the substitute is a manufacturing variation that maintains electrical performance within the specified parameters for high-frequency and switching applications.

Q: Is the extended operating temperature range of the ECH-U1H682GX5 (-55°C ~ 125°C) a concern?

A: No. The extended lower temperature limit of -55°C (versus -40°C) is an enhancement that expands the operational envelope. The upper limit remains at 125°C, matching the original specification.

Q: What compliance certifications should I verify for the substitute part?

A: The ECH-U1H682GX5 is ROHS3 compliant and REACH unaffected. Both parts carry EAR99 export classification. Verify that these certifications align with your application and regional requirements.

Q: Are there through-hole alternatives to the ECH-U1H682GX5 that maintain the original package type?

A: The provided substitute list contains only the ECH-U1H682GX5. For through-hole radial alternatives with matching specifications, consult the full Panasonic ECH series product portfolio or contact the manufacturer directly.