ECH-S1394JZ Film Capacitor Equivalent & Substitute Parts

Part Overview

The ECH-S1394JZ is a 0.39 µF film capacitor manufactured by Panasonic Electronic Components, rated for 100V DC operation with ±5% tolerance. This component features a Polyphenylene Sulfide (PPS) dielectric material in a radial through-hole configuration, designed for high-frequency and switching applications. The product is classified as obsolete, making equivalent substitutes necessary for ongoing system maintenance and new production requirements.

Substiute Parts

ECH-S1394JZ

Panasonic Electronic ComponentsIn Stock: 762ECH-S1394JZ Datasheet

Current PartRFQ

160394J100D-F

Cornell Dubilier Electronics (CDE)In Stock: 911160394J100D-F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ECH-S1394JZ is determined by the following critical parameters:

• Capacitance Value: 0.39 µF (exact match required)
• Voltage Rating - DC: 100V minimum (equal or higher acceptable)
• Tolerance: ±5% (matching tolerance specification)
• Mounting Type: Through Hole (mechanical compatibility)
• Package / Case: Radial (physical form factor)
• Termination: PC Pins (connection method)

The Cornell Dubilier Electronics (CDE) part 160394J100D-F meets these core substitution criteria. While the dielectric material differs (Polyester, Metallized vs. Polyphenylene Sulfide), both materials satisfy the electrical requirements for this application category. The CDE substitute maintains the same capacitance, tolerance, voltage rating, mounting configuration, and termination type.

Parameter Comparison

Engineering Selection Recommendations

The 160394J100D-F from Cornell Dubilier Electronics is a functional equivalent for the obsolete ECH-S1394JZ. Both components share identical capacitance, tolerance, and DC voltage ratings. The CDE substitute is currently in active production status with ROHS3 compliance, providing supply chain continuity and regulatory alignment for new designs.

Physical dimensions differ between the two parts. The CDE substitute is smaller (13.00mm x 6.00mm vs. 20.50mm x 10.50mm) with reduced lead spacing (10.00mm vs. 15.00mm). PCB layout modifications may be required to accommodate the smaller footprint and adjusted pin spacing.

Operating temperature ranges differ slightly. The CDE part operates from -55°C to 105°C, compared to the original -40°C to 125°C specification. Applications requiring the full upper temperature range of 125°C should evaluate this limitation against system requirements.

Frequently Asked Questions (FAQ)

Q: Can the 160394J100D-F directly replace the ECH-S1394JZ without PCB modifications?

A: Electrical substitution is valid. However, physical substitution requires PCB layout evaluation due to different package dimensions and lead spacing. The CDE part is smaller with closer pin spacing (10.00mm vs. 15.00mm).

Q: What is the impact of different dielectric materials (PPS vs. Polyester, Metallized)?

A: Both materials meet the electrical specifications for this application category. Dielectric material selection does not affect substitution validity when voltage rating, capacitance, and tolerance match.

Q: Does the CDE substitute meet RoHS requirements?

A: Yes. The 160394J100D-F is ROHS3 compliant, whereas the original ECH-S1394JZ is RoHS non-compliant. This provides regulatory advantage for new production.

Q: Are there temperature range limitations with the CDE substitute?

A: The CDE part operates to 105°C maximum, versus 125°C for the original. Applications requiring sustained operation above 105°C should evaluate this specification against system thermal requirements.

Q: What is the lead spacing difference and why does it matter?

A: The original part has 15.00mm lead spacing; the substitute has 10.00mm spacing. This affects PCB hole pattern compatibility and may require layout redesign for through-hole mounting.