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WMC08D1K-F Equivalent & Substitute Parts
Part Overview
The WMC08D1K-F is a 1000 pF polyester film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 80V DC operation with ±10% tolerance. This axial through-hole component is designed for high-pulse and DV/DT applications, operating across the temperature range of -55°C to 125°C. The part maintains Active product status with ROHS3 compliance and is currently in stock with 1032 units available.
Substitute parts are identified when equivalent electrical and mechanical parameters allow direct functional replacement within specified application constraints. The WMC08D1K-F operates at lower voltage ratings compared to available alternatives in the same series, making substitution analysis necessary for applications requiring higher voltage margins or component standardization across product lines.
Substiute Parts
Key Parameters
| Parameter | Value | Specification Basis |
|---|---|---|
| Capacitance | 1000 pF | Core electrical specification |
| Tolerance | ±10% | Accuracy classification |
| Voltage Rating - DC | 80V | Maximum operating voltage |
| Dielectric Material | Polyester | Determines electrical characteristics |
| Operating Temperature Range | -55°C to 125°C | Thermal operating limits |
| Mounting Type | Through Hole | PCB assembly method |
| Package / Case | Axial | Physical form factor |
| Size / Dimension | 0.185" Dia x 0.406" L (4.70mm x 10.30mm) | Physical compatibility |
| Termination | PC Pins | Connection method |
| RoHS Status | ROHS3 Compliant | Environmental compliance |
Substitute Part Grouping Explanation
Substitution eligibility for the WMC08D1K-F is determined by strict alignment of the following parameters:
Mandatory Matching Parameters:
- Capacitance: 1000 pF (exact match required)
- Tolerance: ±10% (exact match required)
- Dielectric Material: Polyester (exact match required)
- Operating Temperature Range: -55°C to 125°C (exact match required)
- Mounting Type: Through Hole (exact match required)
- Package / Case: Axial (exact match required)
- Size / Dimension: 0.185" Dia x 0.406" L (exact match required)
- Termination: PC Pins (exact match required)
- RoHS Status: ROHS3 Compliant (exact match required)
Allowable Variation Parameters:
- Voltage Rating - DC: Higher voltage ratings are acceptable substitutes, provided the application does not require the lower voltage specification for specific design constraints
- Voltage Rating - AC: Higher voltage ratings are acceptable substitutes
The WMC2D1K-F qualifies as a direct substitute based on these criteria. Both parts share identical capacitance, tolerance, dielectric material, temperature range, mounting configuration, physical dimensions, and compliance certifications. The WMC2D1K-F provides elevated voltage ratings (250V DC / 125V AC) compared to the WMC08D1K-F (80V DC / 50V AC), representing a higher-specification alternative within the same product series.
Parameter Comparison
| Parameter | WMC08D1K-F (Main Part) | WMC2D1K-F (Substitute) | Compatibility Status |
|---|---|---|---|
| Manufacturer | Cornell Dubilier Electronics (CDE) | Cornell Dubilier Electronics (CDE) | Identical |
| Series | WMC | WMC | Identical |
| Capacitance | 1000 pF | 1000 pF | Identical |
| Tolerance | ±10% | ±10% | Identical |
| Voltage Rating - DC | 80V | 250V | Substitute rated higher |
| Voltage Rating - AC | 50V | 125V | Substitute rated higher |
| Dielectric Material | Polyester | Polyester | Identical |
| Operating Temperature Range | -55°C to 125°C | -55°C to 125°C | Identical |
| Mounting Type | Through Hole | Through Hole | Identical |
| Package / Case | Axial | Axial | Identical |
| Size / Dimension | 0.185" Dia x 0.406" L (4.70mm x 10.30mm) | 0.185" Dia x 0.406" L (4.70mm x 10.30mm) | Identical |
| Termination | PC Pins | PC Pins | Identical |
| Product Status | Active | Active | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| REACH Status | REACH Unaffected | REACH Unaffected | Identical |
| ECCN | EAR99 | EAR99 | Identical |
Engineering Selection Recommendations
WMC08D1K-F Selection Criteria: The WMC08D1K-F is the appropriate choice for applications with voltage requirements not exceeding 80V DC (50V AC). This part is suitable for circuits where the lower voltage rating aligns with design specifications and cost optimization is a consideration. The part maintains Active product status with full ROHS3 and REACH compliance, ensuring regulatory alignment for current manufacturing standards.
WMC2D1K-F Selection Criteria: The WMC2D1K-F serves as a direct functional substitute when higher voltage margins are required or when standardizing component specifications across multiple product designs. With 250V DC (125V AC) rating, this part accommodates applications requiring elevated voltage headroom. Both parts share identical physical dimensions, allowing direct PCB footprint compatibility. The WMC2D1K-F maintains Active product status with equivalent compliance certifications (ROHS3, REACH Unaffected, EAR99).
Compliance and Availability: Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. Current inventory status shows 1032 units of WMC08D1K-F and 1132 units of WMC2D1K-F available as new original stock.
Frequently Asked Questions (FAQ)
Q: Can WMC2D1K-F replace WMC08D1K-F in all applications?
A: The WMC2D1K-F is electrically and mechanically compatible with WMC08D1K-F applications. Both parts share identical capacitance (1000 pF), tolerance (±10%), dielectric material (polyester), temperature range (-55°C to 125°C), physical dimensions (0.185" Dia x 0.406" L), and mounting configuration (axial through-hole). The WMC2D1K-F provides higher voltage ratings (250V DC vs. 80V DC), which does not restrict its use in lower-voltage applications. Substitution is valid from an electrical and mechanical standpoint.
Q: What are the physical compatibility considerations?
A: Both the WMC08D1K-F and WMC2D1K-F share identical physical dimensions of 0.185" diameter by 0.406" length (4.70mm x 10.30mm). Both use axial through-hole mounting with PC pin termination. PCB footprints, lead spacing, and assembly processes are directly compatible between these parts.
Q: Are there compliance differences between these parts?
A: No. Both parts carry identical compliance certifications: ROHS3 compliant, REACH unaffected, and EAR99 classification. Both maintain Active product status from Cornell Dubilier Electronics.
Q: What is the primary electrical difference?
A: The WMC2D1K-F is rated for 250V DC (125V AC), while the WMC08D1K-F is rated for 80V DC (50V AC). All other electrical parameters—capacitance, tolerance, dielectric material, and operating temperature range—are identical.
Q: When should I select WMC08D1K-F over WMC2D1K-F?
A: Select the WMC08D1K-F when your circuit design specifies 80V DC maximum operating voltage and cost optimization is a priority. The lower voltage rating may result in different physical characteristics or pricing within the WMC series.
Q: Are both parts available in the same packaging?
A: The WMC08D1K-F is available in standard packaging, while the WMC2D1K-F is available in bulk packaging. Both use identical axial through-hole form factors suitable for automated and manual PCB assembly processes.
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