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Equivalent & Substitute Parts for 185105K63RGA-F
Part Overview
The 185105K63RGA-F is a 1 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 185 series. This radial through-hole component operates at 63V DC with ±10% tolerance and polyester metallized dielectric construction. The part is Active in product status and ROHS3 compliant. Substitute parts are necessary to address packaging format availability, tolerance requirements, lead spacing specifications, or inventory constraints while maintaining electrical and mechanical compatibility within the specified parameter ranges.
Substiute Parts
Key Parameters
| Parameter | Value | Criticality for Substitution |
|---|---|---|
| Capacitance | 1 µF | Critical - Must match exactly |
| Voltage Rating - DC | 63V | Critical - Must match or exceed |
| Voltage Rating - AC | 40V | Critical - Must match or exceed |
| Tolerance | ±10% | Critical - Determines upgrade vs. direct substitute |
| Dielectric Material | Polyester, Metallized | Critical - Defines electrical characteristics |
| Operating Temperature Range | -55°C ~ 125°C | Critical - Must match or exceed |
| Mounting Type | Through Hole | Critical - Determines PCB compatibility |
| Package / Case | Radial | Critical - Physical form factor |
| Lead Spacing | 0.197" (5.00mm) | Critical - PCB footprint compatibility |
| Termination | PC Pins | Critical - Connection method |
| RoHS Status | ROHS3 Compliant | Regulatory - Must maintain compliance |
Substitute Part Grouping Explanation
Substitute parts for the 185105K63RGA-F are classified into three categories based on electrical and mechanical compatibility:
Direct Substitutes (Equivalent Electrical & Mechanical Parameters): Parts that maintain identical capacitance (1 µF), voltage ratings (40V AC / 63V DC), tolerance (±10%), operating temperature range (-55°C ~ 125°C), mounting type (Through Hole), package type (Radial), lead spacing (0.197" / 5.00mm), and termination (PC Pins). These parts differ only in packaging format (Bulk vs. Tape & Reel vs. Cut Tape) or manufacturer series designation. Direct substitutes include CDE 168105K63G-F and EPCOS B32529C0105K000, B32529C0105K189, and B32529C0105K289.
Upgrade Substitutes (Enhanced Tolerance): Parts that maintain all electrical and mechanical parameters but provide tighter tolerance (±5% instead of ±10%). These parts are suitable for applications requiring higher capacitance accuracy. Upgrade substitutes include EPCOS B32529C0105J000 and B32529C0105J189.
Similar Substitutes (Modified Mechanical Parameters): Parts that maintain identical electrical specifications (1 µF, 40V AC / 63V DC, ±10% tolerance, -55°C ~ 125°C) but feature different physical dimensions and lead spacing. These parts require PCB footprint verification before selection. Similar substitutes include EPCOS B32521C0105K000 with 0.394" (10.00mm) lead spacing.
Parameter Comparison
| Part Number | Manufacturer | Capacitance | Tolerance | Voltage DC | Voltage AC | Dielectric | Temp Range | Lead Spacing | Height Max | Packaging | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 185105K63RGA-F | CDE | 1 µF | ±10% | 63V | 40V | Polyester, Metallized | -55°C ~ 125°C | 0.197" (5.00mm) | 0.433" (11.00mm) | Tape & Reel | 1082 Pcs |
| 168105K63G-F | CDE | 1 µF | ±10% | 63V | 40V | Polyester, Metallized | -55°C ~ 125°C | 0.197" (5.00mm) | 0.433" (11.00mm) | Bulk | 5735 Pcs |
| B32529C0105K000 | EPCOS - TDK | 1 µF | ±10% | 63V | 40V | Polyester (PET), Metallized - Stacked | -55°C ~ 125°C | 0.197" (5.00mm) | 0.374" (9.50mm) | Bulk | 28461 Pcs |
| B32529C0105K189 | EPCOS - TDK | 1 µF | ±10% | 63V | 40V | Polyester (PET), Metallized - Stacked | -55°C ~ 125°C | 0.197" (5.00mm) | 0.374" (9.50mm) | Cut Tape | 1900 Pcs |
| B32529C0105K289 | EPCOS - TDK | 1 µF | ±10% | 63V | 40V | Polyester (PET), Metallized - Stacked | -55°C ~ 125°C | 0.197" (5.00mm) | 0.374" (9.50mm) | Cut Tape | 6529 Pcs |
| B32529C0105J000 | EPCOS - TDK | 1 µF | ±5% | 63V | 40V | Polyester (PET), Metallized - Stacked | -55°C ~ 125°C | 0.197" (5.00mm) | 0.374" (9.50mm) | Bulk | 2210 Pcs |
| B32529C0105J189 | EPCOS - TDK | 1 µF | ±5% | 63V | 40V | Polyester (PET), Metallized - Stacked | -55°C ~ 125°C | 0.197" (5.00mm) | 0.374" (9.50mm) | Cut Tape | 47160 Pcs |
| B32521C0105K000 | EPCOS - TDK | 1 µF | ±10% | 63V | 40V | Polyester (PET), Metallized - Stacked | -55°C ~ 125°C | 0.394" (10.00mm) | 0.354" (9.00mm) | Bulk | 3234 Pcs |
Engineering Selection Recommendations
For Direct Replacement (Same Electrical & Mechanical Specifications):
Select 168105K63G-F (CDE) when packaging format change from Tape & Reel to Bulk is acceptable. This part maintains identical electrical performance and physical dimensions while offering higher inventory availability (5735 Pcs vs. 1082 Pcs).
Select B32529C0105K000, B32529C0105K189, or B32529C0105K289 (EPCOS - TDK) when cross-manufacturer substitution is required. All three parts maintain 1 µF capacitance, ±10% tolerance, 63V DC / 40V AC ratings, and 0.197" (5.00mm) lead spacing. These parts feature compact stacked construction with reduced height (0.374" vs. 0.433"), providing space optimization benefits. EPCOS parts carry AEC-Q200 automotive qualification and are suitable for automotive and EMI/RFI suppression applications. Packaging options include Bulk (B32529C0105K000) and Cut Tape formats (B32529C0105K189, B32529C0105K289).
For Enhanced Tolerance Requirement (±5% Tolerance):
Select B32529C0105J000 (Bulk) or B32529C0105J189 (Cut Tape) when circuit design requires tighter capacitance tolerance. These upgrade substitutes maintain all other electrical and mechanical parameters while providing ±5% tolerance. B32529C0105J189 offers the highest inventory availability (47160 Pcs) among all substitute options.
For Modified Lead Spacing (0.394" / 10.00mm):
Select B32521C0105K000 (EPCOS - TDK) only when PCB footprint design accommodates 0.394" (10.00mm) lead spacing. This part maintains identical electrical specifications and ±10% tolerance but features different physical dimensions. Verify PCB layout compatibility before selection.
Regulatory & Compliance Considerations:
All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory standing. EPCOS parts carry AEC-Q200 automotive qualification, providing additional assurance for automotive applications.
Frequently Asked Questions (FAQ)
Q: Can I use B32529C0105K000 as a direct replacement for 185105K63RGA-F?
A: Yes. Both parts maintain identical electrical specifications (1 µF, ±10%, 63V DC / 40V AC) and mechanical compatibility (0.197" lead spacing, Through Hole radial package). The primary difference is packaging format (Bulk vs. Tape & Reel) and manufacturer. EPCOS B32529C0105K000 features compact stacked construction with reduced height (0.374" vs. 0.433"), which may provide PCB space benefits.
Q: What is the difference between B32529C0105K289 and B32529C0105J189?
A: Both parts are EPCOS products in Cut Tape packaging with identical physical dimensions and lead spacing. The key difference is tolerance: B32529C0105K289 provides ±10% tolerance (matching the original part), while B32529C0105J189 provides tighter ±5% tolerance. Select B32529C0105J189 for applications requiring higher capacitance accuracy.
Q: Can I use B32521C0105K000 in place of 185105K63RGA-F?
A: B32521C0105K000 maintains identical electrical specifications but features different lead spacing (0.394" vs. 0.197"). This part is suitable only if your PCB footprint design accommodates the wider 10.00mm lead spacing. Verify PCB layout compatibility before selection.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the original 185105K63RGA-F.
Q: Which substitute part offers the best inventory availability?
A: B32529C0105J189 (EPCOS - TDK) offers the highest inventory availability at 47160 Pcs. This part provides ±5% tolerance in Cut Tape packaging with identical electrical and mechanical specifications to the original part (except for enhanced tolerance).
Q: What is the significance of "Stacked" construction in EPCOS parts?
A: Stacked construction refers to the internal capacitor design architecture used by EPCOS. This design provides compact physical dimensions while maintaining electrical performance equivalent to the original CDE parts. The stacked configuration results in reduced height (0.374" vs. 0.433"), which may provide PCB space optimization benefits.
Q: Can I mix packaging formats (Tape & Reel, Bulk, Cut Tape) in the same assembly?
A: Yes. Packaging format differences do not affect electrical or mechanical compatibility. Selection should be based on assembly process requirements and inventory management practices. Tape & Reel format suits automated pick-and-place assembly, while Bulk and Cut Tape formats accommodate manual or alternative assembly processes.
Q: Do EPCOS parts carry automotive qualification?
A: Yes. EPCOS B32529 and B32521 series parts carry AEC-Q200 automotive qualification, making them suitable for automotive applications and EMI/RFI suppression circuits. CDE 185 and 168 series parts do not carry explicit automotive qualification in the provided specifications.
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