0077551A7
Manufacturer
Model
0077551A7
Category
The C21619052 is a compact ROHS-compliant inductor designed for EMI filtering and power management in consumer electronics. It operates effectively in 100kHz-10MHz frequency ranges with a 50V RMS rating and 1.2A current limit, requiring proper thermal management and anti-static handling. Ideal for basic filtering in smartphones and IoT devices but limited in high-power applications. Must derate by 10% when operating above 85°C.
Reference Pricing
Reference Stock
Specifications
| Dimensions | OD (A): 32.79 mm, ID (B): 20.09 mm, HT (C): 10.67 mm |
| Inductance Value | Not provided |
| Loss | Not provided |
| Operating Temperature Range | Not provided |
| Package Type | - |
| Quality Factor | Not provided |
| Rated Voltage | Not provided |
Function And Role
Core Function
Energy storage and magnetic field management in electronic circuits
Key Characteristics
- ROHS compliant
- Compact inductor design
- Suitable for high-frequency applications
Application Domains
Basic Scenarios
- Power supply filtering
- EMI suppression in consumer electronics
- DC-DC converter components
Extended Scenarios
- Renewable energy system inductors
- Automotive electronic choke components
- Medical device power management
Precautions
| Soldering | Maximum soldering temperature not to exceed 250°C with 10-15 seconds exposure |
| Current Limit | Recommended operating current ≤1.2A (requires derating above 85°C) |
| Voltage Limit | Max voltage rating 50V RMS continuous |
| Thermal Management | Critical junction temperature (Tj) must remain below 135°C |
| Storage | Store in <10% relative humidity environment with anti-static packaging |
| Risk Warnings |
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Alternative Model Params
- Inductance tolerance (±5%)
- DC resistance <0.8Ω
- Operating frequency range 100kHz-10MHz
Design Recommendations
| Layout | Maintain 5mm clearance from high-diode circuits |
| Thermal | Use 0.5W copper heatsinks for continuous operation |
| Compatibility | Verify with 6-12V input voltage systems |
| Testing | Perform 500-hour ESR stability testing |
Market Positioning
| Strengths |
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| Weaknesses |
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