RLB9012-122KL Bourns Inductor (Other) In Stock
Bourns RLB9012-122KL is a 1200 µH ferrite-core radial leaded general-purpose inductor with 3.4 Ω DC resistance in a cylindrical through-hole package optimized for DC-DC converter applications. Its ferrite construction provides stable inductance over a wide frequency range. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Bourns
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- RLB9012-122KL Datasheet PDF
- Category
- Inductor
- Price
- From $0.2777(MOQ 100)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of RLB9012-122KL?
- 1200 µH nominal inductance with ferrite core provides high inductance density suited for low-frequency DC-DC converter filtering and energy storage
- 3.4 Ω DC resistance in a cylindrical radial leaded package enables easy through-hole PCB installation for prototyping and production power supply designs
- RoHS-compliant (Pb-free, e3 JESD-609) construction meets global environmental regulations for use in industrial and consumer power conversion equipment
What is RLB9012-122KL used for?
The RLB9012-122KL is designed for DC-DC converter output filtering and energy storage in industrial power supplies, battery chargers, and point-of-load regulator circuits requiring 1200 µH inductance in a radial leaded package. Its ferrite core and cylindrical body make it a versatile choice for boost, buck, and flyback converter designs where high inductance and simple through-hole mounting are priorities.
What are the specifications of RLB9012-122KL?
| Pbfree Code | Yes |
| Factory Lead Time | 18Weeks |
| YTEOL | 5.7 |
| Construction | Cylindrical |
| Core Material | FERRITE |
| DC Resistance | 3.4Ω |
| Inductance-Nom (L) | 1200 µH |
| Inductor Application | DC-DC CONVERTER |
| Inductor Type | GENERAL PURPOSE INDUCTOR |
| JESD-609 Code | e3 |
| Lead Diameter | 0.65mm |
| Lead Spacing | 5mm |
| Number of Functions | 1 |
| Package Diameter | 9mm |
| Package Length | 12.2mm |
| Package Style | Radial |
| Packing Method | Tray |
| Rated Current-Max | 0.48A |
| Self Resonance Frequency | 1.2MHz |
| Shape/Size Description | CYLINDRICAL PACKAGE |
| Shielded | NO |
| Surface Mount | NO |
| Terminal Finish | Tin (Sn) |
| Terminal Placement | RADIAL |
| Terminal Shape | WIRE |
| Test Frequency | 0.001MHz |
| Tolerance | 10% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8504.50.80.00 |
| Country of Origin | Mainland China |
Where can I find the RLB9012-122KL datasheet?
RLB9012-122KL Datasheet DownloadOfficial datasheet from Bourns
What are equivalent replacements for RLB9012-122KL?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What inductance and DC resistance does the RLB9012-122KL provide for DC-DC converter designs?
The RLB9012-122KL provides 1200 µH nominal inductance with a DC resistance of 3.4 Ω. These parameters suit low-frequency DC-DC converter output filters where high inductance is needed to reduce ripple current, though the 3.4 Ω DCR should be factored into efficiency calculations for battery-powered or high-current designs.
How does the ferrite core of the RLB9012-122KL compare to air-core alternatives in converter filtering?
The ferrite core in the RLB9012-122KL allows it to achieve 1200 µH in a compact cylindrical body, whereas an air-core inductor of equivalent inductance would be significantly larger. Ferrite provides higher permeability enabling dense energy storage, though designers must verify the saturation current rating matches converter peak currents, as ferrite cores saturate at defined current levels unlike air-core types.
For a battery charger operating at low switching frequencies, how suitable is the RLB9012-122KL's 1200 µH inductance?
At 1200 µH, the RLB9012-122KL is well suited for battery charger circuits operating at switching frequencies below 100 kHz, where high inductance values are needed to limit inductor current ripple to acceptable levels. For example, at 20 kHz with a 12 V input, the 1200 µH inductance produces less than 500 mA peak-to-peak ripple in a typical buck converter stage with moderate output current.
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Why Buy from FindMyChip
About Bourns
Bourns is a leading electronic component manufacturer. FindMyChip sources Bourns ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.4740 | $47.40 |
| 500+ | $0.4500 | $225.00 |
| 600+ | $0.3601 | $216.08 |
| 1000+ | $0.3200 | $320.00 |
| 2000+ | $0.3150 | $630.00 |
| 4000+ | $0.2777 | $1110.84 |
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