ECH-S1H124JZ Equivalent & Substitute Parts

Part Overview

The ECH-S1H124JZ is a 0.12 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 identification of functionally equivalent alternatives essential for ongoing system support and maintenance.

Substiute Parts

ECH-S1H124JZ

Panasonic Electronic ComponentsIn Stock: 764ECH-S1H124JZ Datasheet

Current PartRFQ

ECH-U1H124GX9

Panasonic Electronic ComponentsIn Stock: 9765ECH-U1H124GX9 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECH-S1H124JZ requires matching the following critical electrical parameters: capacitance value (0.12 µF), voltage rating (minimum 50V DC), dielectric material (PPS), and operating temperature range compatibility. The ECH-U1H124GX9 qualifies as a functional equivalent based on identical capacitance and voltage specifications, matching PPS dielectric composition, and maintaining the required temperature operating window. However, this substitute introduces a change in mounting technology from through-hole radial to surface-mount 2416 package format, which represents a significant physical and assembly-level difference requiring circuit board redesign.

Parameter Comparison

Engineering Selection Recommendations

The ECH-U1H124GX9 provides electrical equivalence to the obsolete ECH-S1H124JZ with improved specifications in tolerance (±2% versus ±5%) and extended lower temperature rating (-55°C versus -40°C). The substitute maintains 50V DC voltage rating and 0.12 µF capacitance with identical PPS dielectric material. The ECH-U1H124GX9 is currently in active production status with ROHS3 compliance and REACH unaffected certification. Selection of this substitute requires circuit board redesign due to the transition from through-hole radial mounting to surface-mount 2416 package technology. The substitute's metallized-stacked PPS construction represents a different manufacturing approach within the same dielectric family.

Frequently Asked Questions (FAQ)

Q: Can the ECH-U1H124GX9 be used as a direct pin-for-pin replacement for the ECH-S1H124JZ?

A: No. The ECH-U1H124GX9 uses surface-mount 2416 package technology with solder pads, while the ECH-S1H124JZ is a through-hole radial component with PC pins. Direct substitution requires circuit board redesign and assembly process modification.

Q: Are the electrical specifications compatible between these two parts?

A: Yes, for core electrical function. Both components provide 0.12 µF capacitance at 50V DC with PPS dielectric material. The ECH-U1H124GX9 offers tighter tolerance (±2% versus ±5%) and extended temperature range (-55°C to 125°C versus -40°C to 125°C).

Q: What is the significance of the metallized-stacked construction in the ECH-U1H124GX9?

A: The metallized-stacked PPS construction in the ECH-U1H124GX9 represents a different manufacturing technique within the PPS dielectric family. Both components use PPS as the dielectric material, maintaining chemical and electrical compatibility for the intended application.

Q: Is the ECH-U1H124GX9 suitable for high-frequency and switching applications?

A: The ECH-U1H124GX9 is specified for general-purpose applications. The original ECH-S1H124JZ was designated for high-frequency and switching applications. Application suitability must be verified against specific circuit requirements.

Q: What are the compliance and availability differences?

A: The ECH-S1H124JZ is obsolete with 693 units in stock. The ECH-U1H124GX9 is active production with 9735 units available, ROHS3 compliant, and REACH unaffected. Packaging differs: ECH-S1H124JZ is bulk, while ECH-U1H124GX9 is supplied in Tape & Reel format.