PM3340-221M-RC Bourns Inductor (Other) In Stock
PM3340-221M-RC is a 220 µH ferrite power inductor from Bourns with a 20% tolerance and 0.44 Ω DC resistance in a rectangular case-5140 package. It is a general-purpose power inductor suited for switching power supplies and EMI filtering applications. Available from stock with worldwide shipping.
- Manufacturer
- Bourns
- Package
- Other
- Pin Count
- 2
- Lifecycle
- OBSOLETE
- Datasheet
- PM3340-221M-RC Datasheet PDF
- Category
- Inductor
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 220 µH nominal inductance with 20% tolerance for broad power supply filtering compatibility
- 0.44 Ω DC resistance in a compact rectangular ferrite construction minimizing power loss
- Ferrite core material providing stable inductance across varying load conditions in power circuits
- RoHS-compliant (JESD-609 e2) construction suitable for lead-free manufacturing processes
Applications
The PM3340-221M-RC is optimized for power inductor roles in DC-DC converters, buck and boost regulators, and EMI suppression circuits. Its 220 µH inductance value makes it effective at attenuating high-frequency switching noise in low-frequency power stages. The component also fits energy storage and filtering stages in industrial power supplies and embedded systems.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Case/Size Code | 5140 |
| Construction | Rectangular |
| Core Material | FERRITE |
| DC Resistance | 0.44Ω |
| Inductance-Nom (L) | 220 µH |
| Inductor Application | POWER INDUCTOR |
| Inductor Type | GENERAL PURPOSE INDUCTOR |
| JESD-609 Code | e2 |
| Number of Functions | 1 |
| Package Height | 11.5mm |
| Package Length | 13mm |
| Package Style | SMT |
| Package Width | 10.2mm |
| Packing Method | TR, 13 Inch |
| Rated Current-Max | 0.7A |
| Shape/Size Description | RECTANGULAR PACKAGE |
| Shielded | NO |
| Surface Mount | YES |
| Terminal Finish | TIN NICKEL COPPER |
| Terminal Placement | DUAL ENDED |
| Terminal Shape | WRAPAROUND |
| 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
Compatible alternatives and drop-in replacements for PM3340-221M-RC:
suggested
Frequently Asked Questions
What is the inductance value and tolerance of the PM3340-221M-RC, and how does that affect filter design?
The PM3340-221M-RC has a nominal inductance of 220 µH with a 20% tolerance, giving an effective range of 176 µH to 264 µH. Designers must account for this spread when calculating cutoff frequencies in LC filter stages to ensure the filter performs across all production units.
How does the 0.44 Ω DC resistance of PM3340-221M-RC affect efficiency in a 5 V buck converter?
A 0.44 Ω DC resistance causes a conduction loss of I² × 0.44 W. At 1 A load current that equals 0.44 W dissipated, reducing converter efficiency. For load currents above 2 A, designers should verify the resulting power dissipation stays within the component's thermal rating and PCB copper capacity.
Which switching regulator topologies are best matched to the PM3340-221M-RC's 220 µH inductance?
The 220 µH inductance suits low-switching-frequency regulators typically operating below 100 kHz, such as simple buck converters powering 3.3 V or 5 V rails from a 12 V input. At 50 kHz switching frequency the 220 µH value provides effective ripple current attenuation while keeping peak inductor current well controlled.
Does the PM3340-221M-RC carry RoHS compliance, and what is its case size designation?
Yes, the PM3340-221M-RC is RoHS-compliant per JESD-609 e2 code and uses a case-5140 rectangular package. This makes it compatible with lead-free reflow soldering processes, and the 5140 footprint occupies approximately 13 mm × 10 mm on the PCB.
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