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ECQ-M2392KZ Equivalent & Substitute Parts
Part Overview
The ECQ-M2392KZ is a 3900 pF film capacitor manufactured by Panasonic Electronic Components, rated for 200V DC operation with polyester dielectric material. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity. The radial through-hole configuration and ±10% tolerance specification define its primary application scope in general-purpose circuits.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Capacitance | 3900 pF |
| Tolerance | ±10% |
| Voltage Rating - DC | 200V |
| Dielectric Material | Polyester |
| Mounting Type | Through Hole |
| Package / Case | Radial |
| Lead Spacing | 0.295" (7.50mm) |
| Operating Temperature Range | -40°C ~ 85°C |
| Termination | PC Pins |
Substitute Part Grouping Explanation
Substitution eligibility for the ECQ-M2392KZ is determined by the following critical parameters:
- Capacitance Value: Must match 3900 pF exactly
- Tolerance: Must be ±10% or tighter
- Voltage Rating - DC: Must be equal to or greater than 200V
- Dielectric Material: Polyester or metallized polyester
- Mounting Type: Through Hole radial configuration
- Termination: PC Pins
- Lead Spacing: Physical compatibility with 0.295" (7.50mm) spacing or equivalent footprint
The BFC237035392 meets these substitution criteria with a higher voltage rating (250V DC) and extended operating temperature range, while maintaining identical capacitance and tolerance specifications.
Parameter Comparison
| Parameter | ECQ-M2392KZ (Main) | BFC237035392 (Substitute) |
|---|---|---|
| Manufacturer | Panasonic Electronic Components | Vishay Beyschlag/Draloric/BC Components |
| Capacitance | 3900 pF | 3900 pF |
| Tolerance | ±10% | ±10% |
| Voltage Rating - DC | 200V | 250V |
| Voltage Rating - AC | - | 160V |
| Dielectric Material | Polyester | Polyester, Metallized |
| Operating Temperature | -40°C ~ 85°C | -55°C ~ 105°C |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | Radial | Radial |
| Lead Spacing | 0.295" (7.50mm) | 0.200" (5.08mm) |
| Termination | PC Pins | PC Pins |
| Product Status | Obsolete | Active |
| RoHS Status | - | ROHS3 Compliant |
Engineering Selection Recommendations
The BFC237035392 is an active production substitute for the obsolete ECQ-M2392KZ. Both components share identical capacitance (3900 pF) and tolerance (±10%) specifications. The substitute provides superior voltage margin with a 250V DC rating compared to the original 200V specification, and extends the operating temperature range to -55°C ~ 105°C.
The substitute carries AEC-Q200 automotive qualification and ROHS3 compliance, indicating current manufacturing standards and regulatory alignment. The lead spacing differs (5.08mm versus 7.50mm), requiring PCB layout verification for mechanical compatibility.
Frequently Asked Questions (FAQ)
Q: Can the BFC237035392 be used as a direct replacement for the ECQ-M2392KZ?
A: Electrical substitution is valid based on matching capacitance, tolerance, and exceeding voltage requirements. Physical lead spacing differs (5.08mm vs 7.50mm), requiring PCB footprint assessment before implementation.
Q: What is the significance of the higher 250V DC rating on the substitute?
A: The substitute's 250V rating provides additional voltage margin above the original 200V specification, improving safety margin in the application circuit. This does not alter the component's functional behavior at the original operating voltage.
Q: Does the metallized polyester dielectric affect compatibility?
A: Metallized polyester is a variant of polyester dielectric material. Both formulations meet the capacitance and tolerance requirements. The metallized construction is standard in modern film capacitor manufacturing.
Q: What is the impact of the extended temperature range (-55°C ~ 105°C)?
A: The substitute supports a wider operating temperature envelope than the original (-40°C ~ 85°C). This provides design flexibility for applications requiring extended temperature operation, though it does not affect performance within the original temperature specification.
Q: Is the AEC-Q200 rating relevant to non-automotive applications?
A: AEC-Q200 certification indicates the component meets automotive reliability standards. This qualification is applicable to any application requiring equivalent reliability assurance, regardless of end-use sector.
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