ECH-S1H154JZ Equivalent & Substitute Parts

Part Overview

The ECH-S1H154JZ is a 0.15 µF film capacitor rated for 50V DC, manufactured by Panasonic Electronic Components as part of the ECHS(Z) series. 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 identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations where legacy component specifications must be maintained.

Substiute Parts

ECH-S1H154JZ

Panasonic Electronic ComponentsIn Stock: 903ECH-S1H154JZ Datasheet

Current PartRFQ

ECH-U1H154GX9

Panasonic Electronic ComponentsIn Stock: 10822ECH-U1H154GX9 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECH-S1H154JZ is determined by the following critical parameters:

• Capacitance Value: Must be 0.15 µF (exact match required)
• Voltage Rating: Minimum 50V DC to maintain electrical safety margins
• Dielectric Material: Polyphenylene Sulfide (PPS) to preserve frequency response and thermal stability characteristics
• Operating Temperature Range: Must support -40°C ~ 125°C minimum
• Tolerance: ±5% or tighter acceptable

The ECH-U1H154GX9 meets these core electrical requirements. However, this substitute introduces a significant change in mounting technology: it is a surface-mount component (2416 package) rather than a through-hole radial design. This substitution is viable only when PCB layout and assembly capabilities support surface-mount technology.

Parameter Comparison

Engineering Selection Recommendations

The ECH-U1H154GX9 is the identified substitute for the obsolete ECH-S1H154JZ based on matching electrical specifications: identical 0.15 µF capacitance, 50V DC voltage rating, and PPS dielectric material. The substitute offers improved tolerance (±2% versus ±5%) and extended lower operating temperature range (-55°C versus -40°C).

The ECH-U1H154GX9 carries active product status and ROHS3 compliance, supporting long-term supply chain continuity and regulatory alignment. The component is available in high inventory volume (10,738 pcs), ensuring procurement reliability.

Selection of this substitute requires PCB redesign to accommodate surface-mount technology in place of through-hole mounting. The 2416 package footprint is significantly smaller (6.00mm x 4.10mm versus 17.00mm x 6.50mm), enabling space optimization in new designs or retrofit applications where board density is a consideration.

Frequently Asked Questions (FAQ)

Q: Can the ECH-U1H154GX9 be used as a direct replacement for the ECH-S1H154JZ in existing through-hole PCBs?

A: No. The ECH-U1H154GX9 is a surface-mount component with solder pads, while the ECH-S1H154JZ uses through-hole PC pins. Direct substitution requires PCB layout modification and assembly process changes. Adapter solutions or board redesign are necessary.

Q: What are the key electrical differences between these two parts?

A: Both components share identical capacitance (0.15 µF) and DC voltage rating (50V). The substitute offers tighter tolerance (±2% versus ±5%) and an extended lower operating temperature limit (-55°C versus -40°C). The substitute includes AC voltage rating (30V) not specified for the original part.

Q: Is the ECH-U1H154GX9 suitable for high-frequency and switching applications?

A: The substitute is classified for general-purpose applications. The original ECH-S1H154JZ was specifically rated for high-frequency and switching applications. Electrical performance in these application domains should be evaluated based on circuit requirements and frequency characteristics.

Q: What is the impact of the metallized-stacked dielectric construction in the substitute?

A: The ECH-U1H154GX9 uses metallized-stacked PPS dielectric versus the standard PPS in the original part. This construction method affects capacitor performance characteristics, including ESR, ESL, and frequency response. Application-specific testing is warranted for critical circuits.

Q: Are there supply chain advantages to using the ECH-U1H154GX9?

A: Yes. The ECH-U1H154GX9 is an active product with 10,738 pcs in stock inventory, compared to the obsolete ECH-S1H154JZ status. The substitute carries ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), supporting modern manufacturing and regulatory requirements.