An AC automotive grade thick film resistor produced by Yageo group is built for ultra-stable, low-noise performance in precision electronics. It is AEC‑Q200‑qualified automotive‑grade thick film SMD chip resistor-the mainstream robust, cost‑effective solution for non‑precision automotive circuits requiring high reliability in harsh environments, with screen‑printed cermet thick film, halogen‑free construction, and full compliance with automotive stress standards. It fills the gap between general‑purpose thick film (RC) and ultra‑precision thin film (RT) for automotive systems needing durability over extreme precision. BEC represents and sells Yageo's AC series of resistors.
Basic Parameters
|
Product Category |
AC automotive grade SMD thin film resistor |
|
Resistance Range |
0Ω, 1Ω~50MΩ |
|
Size Range |
0201~2512 |
|
Working Temperature |
-55℃~155℃ |
|
Tolerance |
±0.1%, ±0.25%, ±0.5%. ±1%, ±5% |
|
Certificate |
RoHS, REACH |
|
Applications |
Automotive industry, safety systems, battery management, power control, signalling |
Characteristics
Substrate: 96% alumina (Al₂O₃) for rigidity and low thermal resistance.
Resistive Layer: Screen‑printed cermet thick film (10–25μm) with laser trimming for target tolerance.
Termination: Ag‑Pd inner electrodes → Ni underlayer → matte Sn outer layer (Pb‑free, RoHS‑compliant), minimizing contact resistance and tin whiskering.
Overcoat: Halogen‑free glass‑epoxy hybrid for moisture/mechanical protection.
Marking: Laser‑printed values (0603+); 0201/0402 unmarked due to space.
100% AOI & Pulse Load Screening: Eliminates early failures for automotive‑grade consistency.
Automotive Reliability & Compliance
AEC‑Q200 Qualified: Validated for thermal cycling (-55°C to +155°C, 1000 cycles), humidity (85°C/85% RH, 1000h), vibration (30g, 10–2000Hz), and shock (100g, 0.5ms) with ≤±1% resistance shift.
Moisture Sensitivity Level (MSL) 1: Unlimited floor life after opening (no bake required).
Environmental Compliance: RoHS/REACH‑compliant, halogen‑free, Pb‑free; J‑STD‑020D solder compatible (260°C peak, 30s max above 217°C).
Operational Life: 8000h at rated power for long‑term automotive system durability.
Production Process
Parts of Our Production Facilities
FAQ
Q1: What tolerances and TCR values are available for the AC series?
A1: Tolerance and TCR (Temperature Coefficient of Resistance) are tiered for automotive cost/performance tradeoffs-no ultra-tight precision specs (these are reserved for the RT thin film series). Tolerance options are as below:
±5%: Cost-optimized standard (most common for automotive-lighting, body control, non-critical biasing).
±1%: Mid-precision (infotainment, HVAC control, BMS auxiliary circuits).
±0.1%/±0.5%: Tight-tolerance variants (special order only-for automotive auxiliary circuits needing slightly higher precision).
Q2: Are AC series SMD thick film resistors fixed or variable resistors?
A2: They are fixed resistors - their resistance value is set during manufacturing (laser-trimmed) and cannot be adjusted in-circuit. Variable SMD resistors (trimmers/potentiometers) are a separate component type for calibration/ tuning.
Q3: What is AEC-Q200 qualification, and what tests does the AC series pass?
A3: AEC-Q200 is the global automotive electronic component reliability standard for passive components (resistors, capacitors, inductors). Yageo's AC series is 100% AEC-Q200 Rev. C qualified, and all production lots pass the following strict automotive stress tests with ≤±1% resistance shift (Yageo's official spec).
Hot Tags: ac automotive grade thick film chip resistor, China ac automotive grade thick film chip resistor manufacturers, suppliers, factory, chip resistor, FRC Standard Thick Film Chip Resistor, Metal Film Fixed Resistor, Metal film resistor, resistor, SMD resistor
