B82462G4332M000 EPCOS Inductor (Other) In Stock
The EPCOS B82462G4332M000 is a 3.3 µH ferrite-core SMD power inductor in a 2525 case size featuring ultra-low DC resistance of 0.031 Ω for high-efficiency power conversion. The rectangular construction and ferrite core support stable inductance across the operating current range in DC-DC converters and EMI filter stages. It suits telecom power supplies, automotive DC-DC modules, and industrial switching regulators requiring compact, low-loss magnetic components.
- Manufacturer
- EPCOS
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- B82462G4332M000 Datasheet PDF
- Category
- Inductor
- Price
- From $0.6177(MOQ 250)
- Temp Range
- -55.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3.3 µH ferrite-core inductance optimized for compact DC-DC converter output filters
- Ultra-low 0.031 Ω DCR minimizes I²R power loss at high continuous currents
- 2525 rectangular SMD package enables automated pick-and-place assembly on dense power boards
- Ferrite core material provides stable permeability and low core loss at switching frequencies
- General-purpose power inductor classification supports use in both EMI filtering and energy storage stages
Applications
The B82462G4332M000 is primarily used as an output inductor in synchronous buck and boost DC-DC converters operating in telecom base stations, server power modules, and industrial automation power supplies. Its low 0.031 Ω DCR allows efficient operation at load currents where copper losses would otherwise reduce converter efficiency below target. Automotive DC-DC modules and point-of-load regulators on PCB power rails also rely on this inductor's stable 3.3 µH inductance to maintain ripple current within specification across temperature variations.
Specifications
| Factory Lead Time | 6Weeks |
| YTEOL | 7.4 |
| Case/Size Code | 2525 |
| Construction | Rectangular |
| Core Material | FERRITE |
| DC Resistance | 0.031Ω |
| Inductance-Nom (L) | 3.3 µH |
| Inductor Application | POWER INDUCTOR |
| Inductor Type | GENERAL PURPOSE INDUCTOR |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Height | 3mm |
| Package Length | 6.3mm |
| Package Style | SMT |
| Package Width | 6.3mm |
| Packing Method | TR, Blister, 13 Inch |
| Rated Current-Max | 2.3A |
| Reference Standard | AEC-Q200 |
| Shape/Size Description | RECTANGULAR PACKAGE |
| Shielded | YES |
| Surface Mount | YES |
| Terminal Finish | TIN |
| Terminal Placement | DUAL ENDED |
| Terminal Shape | ONE SURFACE |
| Test Frequency | 0.1MHz |
| Tolerance | 20% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8504.50.80.00 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the DC resistance of the B82462G4332M000, and how does it affect efficiency in a 5 A buck converter output stage?
The B82462G4332M000 has a DC resistance of 0.031 Ω. At 5 A continuous load current, the copper loss in the inductor is I² × R = 25 × 0.031 = 0.775 W. Compared to an inductor with 0.1 Ω DCR, which would dissipate 2.5 W under the same conditions, the lower 0.031 Ω value reduces thermal stress and improves converter efficiency by approximately 1.7 percentage points at full load, a significant advantage in thermally constrained telecom power modules.
How does the 3.3 µH inductance value of the B82462G4332M000 influence output ripple current in a 500 kHz synchronous buck converter?
For a 500 kHz synchronous buck converter stepping down from 12 V to 3.3 V with a 3.3 µH inductor, the peak-to-peak ripple current is approximately ΔI = (Vin − Vout) × D / (L × f) = (12 − 3.3) × (3.3/12) / (3.3 µH × 500 kHz) ≈ 1.46 A. Increasing inductance to 10 µH would reduce ripple to under 0.5 A but would require a physically larger component. The 3.3 µH value in the 2525 package offers a balanced trade-off between ripple current, transient response time, and board area for mid-range switching regulators.
Which applications benefit most from the 2525 SMD case size of the B82462G4332M000 compared to larger through-hole inductors?
The 2525 SMD case (approximately 6.4 mm × 6.4 mm footprint) suits high-density PCB designs in server power boards, automotive ECUs, and industrial motor driver modules where vertical height clearance is below 5 mm. Through-hole inductors of equivalent 3.3 µH inductance are typically 40% to 60% taller, preventing use in low-profile chassis assemblies. The SMD format also supports fully automated reflow soldering at 260°C peak temperature, eliminating the manual insertion step required by through-hole parts and reducing assembly cost per board.
Can the B82462G4332M000 be used in an EMI differential-mode filter, and what frequency range does the ferrite core support?
Yes, the B82462G4332M000 is suitable for differential-mode EMI filters. The ferrite core provides high permeability and acceptable loss characteristics from approximately 100 kHz up to several MHz, making it effective at attenuating conducted differential-mode noise generated by switching converters operating at 200 kHz to 2 MHz. A 3.3 µH inductor paired with a 100 nF X-capacitor forms a second-order LC filter with a corner frequency near 276 kHz, providing over 40 dB of attenuation at 1 MHz switching harmonics.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $0.8235 | $205.88 |
| 500+ | $0.7765 | $388.25 |
| 1000+ | $0.7379 | $737.93 |
| 2500+ | $0.6770 | $1692.50 |
| 5000+ | $0.6390 | $3195.00 |
| 7500+ | $0.6177 | $4632.45 |
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