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CL10B183KB8NFNC Equivalent & Substitute Parts
Part Overview
The CL10B183KB8NFNC is a 0.018 µF ±10% 50V ceramic capacitor manufactured by Samsung Electro-Mechanics in the 0603 (1608 Metric) surface mount package. This multilayer ceramic capacitor (MLCC) features X7R temperature coefficient characteristics and operates across -55°C to 125°C. The part is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).
Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific requirements such as enhanced tolerance specifications or higher voltage ratings.
Substiute Parts
Key Parameters
| Parameter | Value | Specification Basis |
|---|---|---|
| Capacitance | 0.018 µF | Core electrical requirement |
| Tolerance | ±10% | Acceptable variance for general purpose applications |
| Voltage Rating | 50V | Minimum rated voltage for circuit compatibility |
| Temperature Coefficient | X7R | Stable capacitance across operating temperature range |
| Package / Case | 0603 (1608 Metric) | Physical and mechanical compatibility |
| Mounting Type | Surface Mount, MLCC | Assembly process compatibility |
| Operating Temperature | -55°C to 125°C | Environmental operating range |
| RoHS Status | ROHS3 Compliant | Regulatory compliance requirement |
| MSL Rating | 1 (Unlimited) | Moisture sensitivity classification |
Substitute Part Grouping Explanation
Substitute parts are classified into three categories based on substitution relationship type and parameter alignment:
Direct Manufacturer Substitutes maintain identical electrical specifications (0.018 µF, ±10%, 50V, X7R) and mechanical compatibility (0603 package). These parts are interchangeable without circuit redesign:
- C0603C183K5RAC7867 (KEMET)
- KGM15AR71H183KT (KYOCERA AVX)
Upgrade Substitutes provide enhanced specifications or additional certifications while maintaining core electrical parameters. These include higher voltage ratings, tighter tolerances, or automotive-grade qualifications:
- AC0603KRX7R9BB183 (YAGEO) – AEC-Q200 automotive rated
- C0603C183J5RAC7867 (KEMET) – ±5% tolerance upgrade
- C0603C183K1RAC7867 (KEMET) – 100V voltage upgrade
- GCM188R71H183KA37D (Murata Electronics) – AEC-Q200 automotive rated, Not For New Designs status
- KGM15AR71H183JT (KYOCERA AVX) – ±5% tolerance upgrade
Parametric Equivalent maintains all electrical and mechanical specifications with alternative manufacturer sourcing:
- CC0603KRX7R9BB183 (YAGEO)
Substitution eligibility is determined by: capacitance value match, tolerance compatibility, voltage rating equal to or exceeding 50V, X7R temperature coefficient, 0603 package format, and surface mount MLCC mounting type.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Capacitance | Tolerance | Voltage Rating | Temp Coeff | Package | Thickness (Max) | Product Status | Certifications |
|---|---|---|---|---|---|---|---|---|---|
| CL10B183KB8NFNC | Samsung Electro-Mechanics | 0.018 µF | ±10% | 50V | X7R | 0603 | 0.035" (0.90mm) | Active | ROHS3 |
| C0603C183K5RAC7867 | KEMET | 0.018 µF | ±10% | 50V | X7R | 0603 | 0.034" (0.87mm) | Active | ROHS3 |
| KGM15AR71H183KT | KYOCERA AVX | 0.018 µF | ±10% | 50V | X7R | 0603 | 0.035" (0.90mm) | Active | ROHS3 |
| AC0603KRX7R9BB183 | YAGEO | 0.018 µF | ±10% | 50V | X7R | 0603 | 0.035" (0.90mm) | Active | ROHS3, AEC-Q200 |
| C0603C183J5RAC7867 | KEMET | 0.018 µF | ±5% | 50V | X7R | 0603 | 0.034" (0.87mm) | Active | ROHS3 |
| C0603C183K1RAC7867 | KEMET | 0.018 µF | ±10% | 100V | X7R | 0603 | 0.034" (0.87mm) | Active | ROHS3 |
| GCM188R71H183KA37D | Murata Electronics | 0.018 µF | ±10% | 50V | X7R | 0603 | 0.035" (0.90mm) | Not For New Designs | ROHS3, AEC-Q200 |
| KGM15AR71H183JT | KYOCERA AVX | 0.018 µF | ±5% | 50V | X7R | 0603 | 0.035" (0.90mm) | Active | ROHS3 |
| CC0603KRX7R9BB183 | YAGEO | 0.018 µF | ±10% | 50V | X7R | 0603 | 0.035" (0.90mm) | Active | ROHS3 |
Engineering Selection Recommendations
For Direct Substitution (No Circuit Redesign Required):
Select C0603C183K5RAC7867 (KEMET) or KGM15AR71H183KT (KYOCERA AVX) when equivalent specifications are required. Both parts maintain 0.018 µF ±10% 50V X7R characteristics with Active product status and ROHS3 compliance. C0603C183K5RAC7867 offers slightly reduced thickness (0.034" vs 0.035"), which may provide marginal PCB layout advantages in space-constrained designs.
For Enhanced Tolerance Applications:
Select C0603C183J5RAC7867 (KEMET) or KGM15AR71H183JT (KYOCERA AVX) when ±5% tolerance is required. Both maintain 50V rating and X7R characteristics with Active status. These upgrades provide tighter capacitance control for precision filtering or timing circuits.
For Elevated Voltage Margin:
Select C0603C183K1RAC7867 (KEMET) when 100V rating is required. This upgrade maintains ±10% tolerance and X7R characteristics, providing additional voltage headroom for circuits operating near 50V nominal levels.
For Automotive Applications:
Select AC0603KRX7R9BB183 (YAGEO) when AEC-Q200 automotive qualification is required. This part maintains all electrical specifications with Active product status and automotive-grade reliability ratings.
Avoid for New Designs:
GCM188R71H183KA37D (Murata Electronics) carries "Not For New Designs" product status. This part is suitable only for legacy system maintenance or replacement applications where existing inventory must be matched.
Frequently Asked Questions (FAQ)
Q: Can C0603C183K5RAC7867 directly replace CL10B183KB8NFNC without PCB modification?
A: Yes. Both parts share identical electrical specifications (0.018 µF ±10% 50V X7R), mechanical package (0603), and mounting type (surface mount MLCC). The 0.001" thickness difference (0.034" vs 0.035") is within standard PCB assembly tolerances and does not require design changes.
Q: What is the difference between ±10% and ±5% tolerance parts?
A: Tolerance defines the acceptable capacitance variance from the nominal 0.018 µF value. ±10% allows 0.0162–0.0198 µF; ±5% allows 0.0171–0.0189 µF. Select ±5% tolerance when circuit performance depends on precise capacitance values, such as in timing circuits or precision filters. General-purpose bypass and decoupling applications typically accept ±10%.
Q: Why would I select a 100V rated part instead of 50V?
A: Higher voltage ratings provide design margin for circuits with voltage transients or where supply voltage may exceed nominal levels. C0603C183K1RAC7867 (100V) is suitable for applications requiring additional safety margin, though it may occupy slightly more board space or cost more than 50V equivalents.
Q: Are KEMET, KYOCERA AVX, YAGEO, and Murata parts interchangeable?
A: Yes, when electrical and mechanical specifications match. All listed substitutes maintain 0.018 µF capacitance, X7R temperature coefficient, 0603 package, and surface mount compatibility. Manufacturer selection is typically driven by supply availability, lead time, or established supplier relationships.
Q: What does "Not For New Designs" mean for GCM188R71H183KA37D?
A: This designation indicates the part is in mature or end-of-life status. Murata Electronics continues to supply existing inventory but does not recommend this part for new product development. Use only when replacing identical parts in legacy systems or when existing stock must be consumed.
Q: Does AEC-Q200 certification affect electrical performance?
A: AEC-Q200 is an automotive reliability qualification standard. It does not alter electrical specifications but confirms the part meets automotive industry reliability, temperature cycling, and failure rate requirements. Select AEC-Q200 parts (AC0603KRX7R9BB183, GCM188R71H183KA37D) only when automotive qualification is a design requirement.
Q: Can I mix different manufacturers in the same PCB assembly?
A: Yes. All listed parts meet ROHS3 compliance, MSL 1 rating, and identical electrical specifications. Mixed-manufacturer assemblies are acceptable from an electrical and regulatory standpoint. Verify with your procurement and quality teams regarding supplier qualification requirements.
Q: What is MSL 1 (Unlimited) moisture sensitivity?
A: MSL 1 indicates the part requires no special moisture protection during storage or handling. Unlike higher MSL ratings (2–6) that require dry-pack storage and bake-out procedures before soldering, MSL 1 parts can be stored and handled under standard warehouse conditions indefinitely.
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