ECH-S1H334JZ Equivalent & Substitute Parts

Part Overview

The ECH-S1H334JZ is a 0.33 µF film capacitor rated for 50V DC operation, manufactured by Panasonic Electronic Components as part of the ECHS(Z) series. This component features a polyphenylene sulfide (PPS) dielectric material in a radial through-hole configuration, designed for high-frequency and switching applications. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

ECH-S1H334JZ

Panasonic Electronic ComponentsIn Stock: 940ECH-S1H334JZ Datasheet

Current PartRFQ

168334J50C-F

Cornell Dubilier Electronics (CDE)In Stock: 4028168334J50C-F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECH-S1H334JZ is determined by the following critical parameters:

• Capacitance Value: 0.33 µF (exact match required)
• Tolerance: ±5% (acceptable range for equivalent performance)
• Voltage Rating - DC: Minimum 50V (equal or higher ratings are acceptable)
• Mounting Type: Through Hole (mechanical compatibility)
• Package / Case: Radial (physical form factor)
• Termination: PC Pins (lead configuration)

The substitute part 168334J50C-F meets these core substitution criteria. While the dielectric material differs (polyester, metallized versus polyphenylene sulfide), both materials satisfy the electrical requirements for this application category. Physical dimensions vary, but the radial through-hole configuration and lead spacing remain compatible with standard PCB layouts designed for this component class.

Parameter Comparison

Engineering Selection Recommendations

The 168334J50C-F from Cornell Dubilier Electronics qualifies as a functional equivalent for the obsolete ECH-S1H334JZ based on matching capacitance, tolerance, and DC voltage rating specifications. The substitute part carries active product status, ensuring ongoing availability and supply chain continuity.

The 168334J50C-F demonstrates superior compliance posture with ROHS3 certification and REACH unaffected status, supporting modern regulatory requirements. The extended lower operating temperature limit (-55°C versus -40°C) provides additional thermal margin in applications requiring cold-temperature operation.

Physical dimensions of the substitute part are significantly smaller, which may require PCB layout modification. The lead spacing reduction from 12.50mm to 5.00mm necessitates verification of footprint compatibility with existing circuit board designs. In applications where physical envelope constraints are critical, layout redesign may be required.

Frequently Asked Questions (FAQ)

Q: Can the 168334J50C-F directly replace the ECH-S1H334JZ without PCB modification?

A: Electrical substitution is valid based on matching capacitance, tolerance, and voltage rating. However, the significant reduction in lead spacing (12.50mm to 5.00mm) and overall dimensions requires PCB footprint verification. Direct mechanical substitution without layout modification is not guaranteed.

Q: What is the impact of the different dielectric materials on circuit performance?

A: Both polyphenylene sulfide (PPS) and polyester, metallized dielectrics are film capacitor technologies suitable for general-purpose and high-frequency applications. The electrical performance characteristics—capacitance stability, ESR, and frequency response—remain within acceptable parameters for this component class when specifications are matched.

Q: Is the 168334J50C-F suitable for high-frequency and switching applications?

A: The substitute part is classified for general-purpose applications. Verification against specific high-frequency or switching circuit requirements is necessary to confirm suitability for the original application context.

Q: What are the compliance advantages of the 168334J50C-F?

A: The substitute part carries ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory standards. The original ECH-S1H334JZ compliance status is not specified in available documentation.

Q: How does the extended temperature range of the substitute part affect selection?

A: The 168334J50C-F operates from -55°C to 125°C, compared to -40°C to 125°C for the original part. This provides additional margin for low-temperature applications but does not restrict use in applications within the original temperature specification.