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0077021A7

Manufacturer

Magnetics

Model

0077021A7

Category

electronic_components
power_components

The Magnetics 0077021A7 is a cost-effective inductor designed for basic filtering and EMI suppression in low-frequency applications, offering reliable performance up to 50V and 1.2A with proper thermal management. Its compact package and ROHS compliance make it suitable for consumer electronics and IoT devices, though extended high-frequency use requires external shielding.

Reference Pricing

1+ :$1.4308
200+ :$0.581
500+ :$0.4886
1000+ :$0.4732

Reference Stock

Available:Unknown

Specifications

DimensionsOD (A): 6.35 mm, ID (B): 2.79 mm, HT (C): 2.79 mm
Inductance Value24 ± 12% nH
Loss750 mW/cm3 (100kHz, 100mT max)
Operating Temperature RangeNot provided
Package Type-
Quality FactorNot provided
Rated VoltageNot provided

Function And Role

Core Function

Energy storage, signal filtering, and electromagnetic interference (EMI) suppression

Application Domains

Basic Scenarios

  • Power supply filtering in low-frequency circuits
  • EMI suppression in consumer electronics

Extended Scenarios

  • Renewable energy system inductors
  • IoT device power management

Precautions

Soldering

Avoid prolonged heat exposure to prevent oxidation; use low-temperature soldering profiles

Current Limit

Max continuous current: 1.2A (derate to 50% at 85°C ambient)

Voltage Limit

Operating voltage: 50V DC; peak voltage: 100V

Thermal Management

Thermal resistance: 60°C/W; require heatsinking for >500mA load

Storage

Store in controlled environments (15-25°C, <30% RH) to prevent moisture damage

Risk Warnings
  • Static discharge hazard
  • Overvoltage may cause core saturation

Alternative Model Params

  • Inductance tolerance (±5%)
  • DC resistance (<5mΩ)
  • Operating frequency range (0-1MHz)

Design Recommendations

Layout

Place inductors 5mm away from high-frequency components

Thermal

Use copper traces for heat dissipation when operating above 500mA

Compatibility

Verify with 12V-24V power supply designs

Testing

Validate EMI performance at 100% load for 72 hours

Market Positioning

Strengths
  • Cost-effective for mass production
  • ROHS-compliant packaging
  • High reliability in 0-50V applications
Weaknesses
  • Limited high-frequency performance (<1MHz)
  • No built-in shielding option

Datasheet

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