ECQ-P1H221JZ Equivalent & Substitute Parts

Part Overview

The ECQ-P1H221JZ is a 220 pF film capacitor manufactured by Panasonic Electronic Components, rated for 50V DC operation with ±5% tolerance. This radial through-hole component utilizes polypropylene (PP) dielectric material and is designed for high-frequency and switching applications. The part is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, maintenance, and new design implementations where legacy specifications must be maintained.

Substiute Parts

ECQ-P1H221JZ

Panasonic Electronic ComponentsIn Stock: 815ECQ-P1H221JZ Datasheet

Current PartRFQ

ECH-U1H221JX5

Panasonic Electronic ComponentsIn Stock: 4738ECH-U1H221JX5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECQ-P1H221JZ is determined by the following critical parameters:

• Capacitance Value: 220 pF (exact match required)
• Tolerance: ±5% (acceptable range for equivalent functionality)
• Voltage Rating (DC): Minimum 50V (equal or higher ratings are acceptable)
• Dielectric Material: Film-based capacitor technology (polypropylene or equivalent film dielectric)
• Operating Temperature Range: Must support the application's thermal requirements

The ECH-U1H221JX5 qualifies as a functional equivalent based on matching capacitance, tolerance, and voltage rating specifications. However, this substitute introduces a change in mounting technology (surface mount 0805 vs. through-hole radial) and dielectric material (polyphenylene sulfide vs. polypropylene), which may require circuit board redesign and thermal management evaluation.

Parameter Comparison

Engineering Selection Recommendations

The ECH-U1H221JX5 is available as an active product with current manufacturing support and ROHS3 compliance, addressing the obsolescence status of the ECQ-P1H221JZ. Selection of this substitute requires evaluation of the following factors:

• Mounting Technology Change: The transition from through-hole radial to surface-mount 0805 requires circuit board redesign and assembly process modification.
• Dielectric Material Difference: Polyphenylene sulfide (PPS) metallized film offers different electrical characteristics compared to polypropylene (PP), including frequency response and ESR profiles.
• Temperature Range Extension: The substitute supports -55°C ~ 125°C operation, exceeding the original part's -40°C ~ 85°C range, providing thermal margin for demanding applications.
• Compliance Status: ROHS3 compliance and MSL 1 rating of the substitute align with modern manufacturing and environmental standards.

Direct pin-for-pin replacement is not feasible due to package format differences. Circuit redesign is mandatory for implementation of this substitute.

Frequently Asked Questions (FAQ)

Q: Can the ECH-U1H221JX5 be used as a direct replacement for the ECQ-P1H221JZ?

A: No. The ECH-U1H221JX5 is a surface-mount 0805 component, while the ECQ-P1H221JZ is a through-hole radial capacitor. Direct substitution requires circuit board redesign and assembly process changes.

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

A: Both parts share identical capacitance (220 pF), tolerance (±5%), and DC voltage rating (50V). However, the dielectric materials differ (polypropylene vs. polyphenylene sulfide), which affects frequency response, ESR, and dissipation factor characteristics.

Q: What is the significance of the operating temperature range difference?

A: The ECH-U1H221JX5 supports -55°C ~ 125°C operation compared to the ECQ-P1H221JZ's -40°C ~ 85°C range. This extended range provides additional thermal margin but does not affect compatibility for applications operating within the original part's temperature limits.

Q: Why is the ECQ-P1H221JZ obsolete?

A: The ECQ-P1H221JZ is classified as obsolete by the manufacturer. The ECH-U1H221JX5 represents the active product line continuation, reflecting industry transition toward surface-mount technology and modern compliance standards.

Q: What packaging format should be considered for new designs?

A: For new designs, the surface-mount 0805 format (ECH-U1H221JX5) is recommended due to active manufacturing status, ROHS3 compliance, and extended operating temperature range. Legacy through-hole designs may require evaluation of alternative through-hole film capacitor options from current product lines.