Key Electrical Specifications
Point: Provides nominal electrical parameters for immediate comparison.
Evidence: Typical nominal capacitance is 470 pF with common tolerance variants of ±1%, ±5%, and ±10%; voltage rating is 50 V DC.
Explanation: Dielectric choice (C0G/NP0 vs. X7R) controls stability: C0G offers near-zero temperature coefficient and negligible DC bias shift, while X7R offers higher volumetric capacitance but larger bias and temperature dependence.
| Parameter | Typical Value | Datasheet Range | Measurement Notes |
|---|---|---|---|
| Nominal capacitance | 470 pF | 470 pF ±1/5/10% | Measure at 1 MHz, 0 V bias |
| Rated voltage | 50 V DC | 50 V DC | Apply DC bias curve 0–50 V |
| Package | 0603 (1608 metric) | 0.063" × 0.033" | Footprint per IPC-7351 |
| Dielectric classes | C0G/NP0 or X7R | Varies by SKU | Specify dielectric on PO |
Mechanical & Termination Notes
Mechanical considerations influence reliability in assembly. Evidence shows an IPC-compliant 0603 land pattern with pad elongation is necessary for solder fillet control; recommended pad dimensions typically center on 0.9–1.0 mm length and 0.6–0.7 mm width. Reflow profiles must follow manufacturer peak temperatures to avoid microcracking, as 0603 parts are sensitive to PCB flex.
Electrical Behavior: Data Deep-Dive
Capacitance vs DC Bias
C0G/NP0 maintains within a few percent across 0–50 V, while X7R can exhibit a significant drop.
C0G Stability (98%) X7R Stability (approx. 65% at 50V)Losses and Impedance
DF, ESR, and ESL determine behavior in switching contexts. At high frequencies, ESL dominates and impedance rises.
Target: Maintain |Z| below 0.1Ω at switching harmonics.
Measurement Note: Use an LCR meter at 1 MHz with Kelvin leads. Report median and 10–90 percentile spreads rather than single-value claims to capture production variation.
Test Methodology & Lab Protocol
Recommended Test Setup
- Prepare samples by baking per supplier moisture recommendations.
- Mount on low-parasitic test coupons (FR4 or high-frequency substrate).
- Instrument settings: LCR 1 MHz, test voltage 0.5–1 Vrms.
- Sample size: n≥10 for qualification, n≥30 for lot acceptance.
Aging & Lifecycle Tests
| Test | Condition | Pass/Fail |
|---|---|---|
| Thermal cycling | –55°C/+125°C, 500 cycles | Pending |
| High-temp storage | 125°C, 1000 hrs | Pending |
| Humidity bias | 85% RH, 85°C, bias | Pending |
Application Cases & Performance Comparisons
Typical Applications and Suitability
Match dielectric to function for best results. For 3.3–5 V rail decoupling, an X7R variant is often used near converter ICs. Conversely, C0G is favored in precision analog filters and resonant circuits.
Design & Procurement Checklist
PCB Design & Derating
- Derate to 50–80% of rated voltage.
- Place decouplers within 2–4 mm of power pins.
- Minimize loop inductance with via stitching.
- Choose C0G for surge-prone high-ripple rails.
Quality Acceptance (QC)
- Verify dielectric class & tolerance on PO.
- Incoming check: Capacitance & DC leakage.
- Validate reflow profile compatibility.
- Maintain lot traceability & shelf-life control.
Summary
The 06035A471KAT 470pF 50V part performs predictably when dielectric choice, DC bias, and temperature effects are accounted for. Key takeaways for engineering validation:
- Measure C vs V and temperature to quantify bias drop, reporting median and spread for margin decisions.
- Capture Impedance vs Frequency to determine suitability for decoupling versus RF bypass applications.
- Implement Incoming Inspection for capacitance, leakage, and visual defects before SMT assembly.
