ECJ-0EF1H682Z Equivalent & Substitute Parts

Part Overview

The ECJ-0EF1H682Z is a 6800 pF ceramic capacitor manufactured by Panasonic Electronic Components, rated for 50V with Y5V temperature coefficient in 0402 (1005 Metric) surface mount package. This part is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing production and maintenance applications. The Y5V dielectric provides capacitance stability suitable for general-purpose filtering and coupling applications within the specified operating temperature range of -30°C to 85°C.

Substiute Parts

ECJ-0EF1H682Z

Panasonic Electronic ComponentsIn Stock: 1068ECJ-0EF1H682Z Datasheet

Current PartRFQ

GRM155R71H682KA88D

Murata ElectronicsIn Stock: 257466GRM155R71H682KA88D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECJ-0EF1H682Z is determined by the following critical parameters:

• Capacitance Value: 6800 pF (exact match required)
• Voltage Rating: 50V minimum (equal or higher acceptable)
• Package / Case: 0402 (1005 Metric) (physical compatibility mandatory)
• Mounting Type: Surface Mount, MLCC (assembly process compatibility)
• Moisture Sensitivity Level: 1 (Unlimited) (handling and storage compatibility)

The substitute part GRM155R71H682KA88D meets all mandatory substitution criteria. While the temperature coefficient differs (X7R vs. Y5V) and tolerance is tighter (±10% vs. -20%, +80%), these represent improvements in performance characteristics rather than incompatibilities. The X7R coefficient provides superior temperature stability across a wider operating range (-55°C ~ 125°C), and the ±10% tolerance offers greater precision than the original Y5V specification.

Parameter Comparison

Engineering Selection Recommendations

The GRM155R71H682KA88D from Murata Electronics is the direct functional equivalent for the obsolete ECJ-0EF1H682Z. Selection of this substitute is supported by the following factors:

Product Status Consideration: The original part is Obsolete, while the substitute is classified as Not For New Designs. For legacy system maintenance and repair, the Murata part provides continued availability with 257,368 units in stock versus 1,045 units of the original.

Compliance Advantage: The GRM155R71H682KA88D is ROHS3 Compliant, whereas the ECJ-0EF1H682Z is RoHS non-compliant. This substitution improves regulatory compliance for applications subject to RoHS requirements.

Performance Enhancement: The X7R temperature coefficient of the substitute provides superior capacitance stability across a wider temperature range (-55°C ~ 125°C) compared to the Y5V specification (-30°C ~ 85°C). The ±10% tolerance is tighter than the original -20%, +80% specification, offering improved precision for circuit design margins.

Physical and Electrical Compatibility: Identical package dimensions (0402), voltage rating (50V), capacitance value (6800 pF), and moisture sensitivity level (MSL 1) ensure direct board-level compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can GRM155R71H682KA88D be used as a direct replacement for ECJ-0EF1H682Z without circuit modification?

A: Yes. Both parts share identical capacitance (6800 pF), voltage rating (50V), package (0402), and physical dimensions. The substitute can be soldered into existing PCB layouts without modification. The improved temperature coefficient and tighter tolerance of the substitute represent performance enhancements rather than compatibility issues.

Q: What is the significance of the temperature coefficient difference (Y5V vs. X7R)?

A: Y5V and X7R are dielectric materials with different temperature stability characteristics. Y5V exhibits greater capacitance variation across temperature but is suitable for general-purpose applications within its specified range (-30°C ~ 85°C). X7R provides superior stability (±15% maximum variation) across a wider range (-55°C ~ 125°C). For applications operating within the original -30°C ~ 85°C window, both coefficients are functionally acceptable.

Q: Does the tolerance difference (-20%, +80% vs. ±10%) affect circuit performance?

A: The substitute's ±10% tolerance is tighter than the original -20%, +80% specification. This provides improved predictability of actual capacitance values. Circuits designed to accommodate the original tolerance range will operate within acceptable margins with the substitute part.

Q: Are there any moisture sensitivity or handling differences?

A: Both parts carry MSL 1 (Unlimited) rating, indicating identical moisture sensitivity and storage requirements. No additional handling precautions are necessary when transitioning from the original to the substitute part.

Q: Why is the substitute listed as "Not For New Designs"?

A: This classification indicates the manufacturer is not recommending the part for new product development, typically due to planned obsolescence or availability of newer alternatives. However, for legacy system support and maintenance applications, the part remains suitable and available in production quantities.