ECH-S1H333JZ Equivalent & Substitute Parts

Part Overview

The ECH-S1H333JZ is a 0.033 µF 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 maintenance, repair, and legacy system support.

Substiute Parts

ECH-S1H333JZ

Panasonic Electronic ComponentsIn Stock: 713ECH-S1H333JZ Datasheet

Current PartRFQ

ECH-U1H333GX5

Panasonic Electronic ComponentsIn Stock: 90003ECH-U1H333GX5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECH-S1H333JZ is determined by the following core parameters:

• Capacitance Value: Must be 0.033 µF (exact match required)
• Voltage Rating (DC): Must be ≥50V
• Dielectric Material: Must be Polyphenylene Sulfide (PPS) or compatible metallized PPS variant
• Operating Temperature Range: Must support the required thermal envelope
• Tolerance: ±5% or tighter acceptable

The ECH-U1H333GX5 qualifies as a functional substitute based on matching capacitance, exceeding voltage rating requirements, utilizing compatible PPS dielectric material, and providing superior tolerance specification. However, this substitute introduces a critical difference: surface-mount packaging versus through-hole mounting, which affects circuit board integration methodology.

Parameter Comparison

Engineering Selection Recommendations

The ECH-U1H333GX5 is electrically compatible with the ECH-S1H333JZ for DC voltage applications, offering improved tolerance (±2% versus ±5%) and extended low-temperature operating range (-55°C versus -40°C). The substitute part carries active product status with ROHS3 compliance and REACH unaffected certification, ensuring long-term availability and regulatory alignment.

The primary consideration for selection is the mounting technology transition from through-hole radial to surface-mount 1210 package. This substitution requires circuit board redesign and assembly process modification. Direct mechanical replacement on existing through-hole PCB layouts is not feasible without adapter solutions or board rework.

Frequently Asked Questions (FAQ)

Q: Can the ECH-U1H333GX5 be used as a direct replacement for the ECH-S1H333JZ?

A: Electrical substitution is valid based on matching capacitance, voltage rating, and dielectric material. However, mechanical compatibility requires board redesign due to the transition from through-hole radial to surface-mount 1210 packaging.

Q: What are the tolerance differences between these parts?

A: The ECH-S1H333GX5 specifies ±2% tolerance compared to the ECH-S1H333JZ at ±5%. Tighter tolerance provides improved circuit performance in applications sensitive to capacitance variation.

Q: Does the substitute part meet environmental and compliance requirements?

A: The ECH-U1H333GX5 is ROHS3 compliant and REACH unaffected, meeting current regulatory standards. The original ECH-S1H333JZ carries obsolete status with no active compliance documentation.

Q: Are there temperature range considerations for substitution?

A: The ECH-U1H333GX5 extends the low-temperature operating range to -55°C, providing broader thermal envelope coverage. Both parts support the upper temperature limit of 125°C.

Q: What is the impact of the metallized-stacked dielectric variant?

A: The ECH-U1H333GX5 uses metallized-stacked PPS construction, which is functionally equivalent to the standard PPS dielectric in the original part for this capacitance and voltage class. This construction method is standard for modern surface-mount film capacitors.