ECQ-P1H104FZW Equivalent & Substitute Parts

Part Overview

The ECQ-P1H104FZW is a 0.1 µF film capacitor manufactured by Panasonic Electronic Components, rated for 50V DC operation with ±1% tolerance. This radial through-hole component utilizes polypropylene (PP) dielectric material and is designed for high-frequency and switching applications. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations where equivalent performance is required.

Substiute Parts

ECQ-P1H104FZW

Panasonic Electronic ComponentsIn Stock: 1123ECQ-P1H104FZW Datasheet

Current PartRFQ

ECH-U1H104GX9

Panasonic Electronic ComponentsIn Stock: 25526ECH-U1H104GX9 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECQ-P1H104FZW requires matching the following critical electrical and mechanical parameters:

• Capacitance Value: 0.1 µF (exact match required)
• Voltage Rating - DC: Minimum 50V (equal or higher acceptable)
• Tolerance: ±1% to ±2% (tighter tolerance acceptable)
• Dielectric Material: Film-based capacitor technology
• Operating Temperature Range: Must support -40°C ~ 85°C minimum
• Mounting Compatibility: Through-hole or surface-mount alternatives with equivalent electrical performance

The ECH-U1H104GX9 qualifies as a substitute based on matching capacitance (0.1 µF), voltage rating (50V DC), tolerance within acceptable range (±2%), and operating temperature coverage (-55°C ~ 125°C exceeds original specification). However, this substitute differs in mounting type (surface mount vs. through hole), dielectric material (PPS metallized vs. polypropylene), and package format (1913 metric vs. radial).

Parameter Comparison

Engineering Selection Recommendations

The ECH-U1H104GX9 serves as an active substitute for the obsolete ECQ-P1H104FZW based on electrical equivalence in capacitance, voltage rating, and tolerance specifications. The substitute maintains ROHS3 compliance and carries active product status, ensuring continued availability and supply chain reliability.

Selection of this substitute requires consideration of mounting architecture differences. The original ECQ-P1H104FZW is a through-hole radial component, while the ECH-U1H104GX9 is a surface-mount device in 1913 metric package format. Circuit board redesign or adapter solutions may be necessary for direct replacement in existing through-hole layouts.

The substitute's extended operating temperature range (-55°C ~ 125°C) and improved moisture sensitivity rating (MSL 1) provide enhanced environmental performance compared to the original specification. Dielectric material differs (PPS metallized vs. polypropylene), which may affect frequency response characteristics in high-frequency applications; however, both materials are suitable for film capacitor applications.

Frequently Asked Questions (FAQ)

Q: Can the ECH-U1H104GX9 directly replace the ECQ-P1H104FZW in existing circuit boards?

A: Direct replacement is not possible without board modification. The ECQ-P1H104FZW is a through-hole radial component, while the ECH-U1H104GX9 is surface-mount. PCB redesign or mechanical adapters are required for physical installation.

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

A: Electrical specifications are equivalent for primary parameters: both provide 0.1 µF capacitance at 50V DC rating. Tolerance differs slightly (±1% vs. ±2%), and dielectric materials differ (polypropylene vs. PPS metallized), which may affect frequency response in high-frequency applications.

Q: What is the significance of the product status difference?

A: The ECQ-P1H104FZW is obsolete and no longer manufactured. The ECH-U1H104GX9 is active, ensuring ongoing availability, supply chain support, and compliance with current regulatory standards including ROHS3.

Q: Does the substitute meet the original operating temperature requirements?

A: Yes. The ECH-U1H104GX9 operating range (-55°C ~ 125°C) exceeds the original specification (-40°C ~ 85°C), providing broader environmental coverage.

Q: What packaging format differences exist?

A: The original uses radial through-hole packaging (0.669" L x 0.295" W). The substitute uses 1913 metric surface-mount format (0.189" L x 0.130" W), requiring different PCB footprints and assembly processes.