0077334A7
Manufacturer
Model
0077334A7
Category
The Magnetics 0077334A7 is a cost-effective inductor/transformer accessory optimized for low-frequency filtering and EMI suppression in compact consumer electronics and renewable energy systems. Its compact package and ROHS compliance make it suitable for high-volume production, but designers must observe strict thermal and voltage limits while using alternative models with matching inductance tolerance and solder pad dimensions.
Reference Pricing
Reference Stock
Specifications
| Dimensions | OD (A): 11.18 mm, ID (B): 6.35 mm, HT (C): 3.96 mm |
| Inductance Value | 334A7 |
| Loss | 750 mW/cm² (100kHz, 100mT max) |
| Operating Temperature Range | Not provided |
| Package Type | - |
| Quality Factor | Not provided |
| Rated Voltage | Not provided |
Function And Role
Core Function
Inductor/transformer accessory for filtering, energy storage, and signal conditioning
Key Characteristics
- ROHS compliant
- compact package
- solderable surface finish
Application Domains
Basic Scenarios
- power supply filtering
- EMI reduction in consumer electronics
- low-frequency signal coupling
Extended Scenarios
- renewable energy inverters
- IoT sensor node power management
- automotive charging system chokes
Precautions
| Soldering | Maximum reflow temperature: 250°C, 20-30 seconds paste time |
| Current Limit | Recommended max continuous current: 0.5A (derate to 0.3A at +70°C) |
| Voltage Limit | Working voltage: 50V RMS (surge withstand: 100V peak) |
| Thermal Management | Thermal resistance: 60°C/W at 1A load, require 10mm PCB copper pour |
| Storage | Store in <10% RH environment, avoid static discharge zones |
| Risk Warnings |
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Alternative Model Params
- inductance tolerance (±5%)
- DC resistance (＜50mΩ)
- solder pad dimensions
Design Recommendations
| Layout | Place within 5mm of power entry, use 2-layer PCB with ground plane |
| Thermal | Add 2mm thick FR4 underfill for heat dissipation |
| Compatibility | Verify with 0.8-1.2mm pitch components |
| Testing | Perform 500-cycle high-frequency (100MHz) validation |
Market Positioning
| Strengths |
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| Weaknesses |
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