SRP1265A-6R8M Bourns Inductor (Inductors Precision Moulded) In Stock
SRP1265A-6R8M is a 6.8 µH power inductor from Bourns in a compact 5349 case size, featuring a carbonyl powder core and 11.5 Ω DC resistance for general-purpose switching power supply filtering. It is RoHS-compliant and optimized for high-current DC-DC converter applications. Available in stock with worldwide shipping.
- Manufacturer
- Bourns
- Package
- Inductors Precision Moulded
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- SRP1265A-6R8M Datasheet PDF
- Category
- Inductor
- Temp Range
- -55.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 6.8 µH nominal inductance in a 5349 case with carbonyl powder core provides stable permeability under DC bias for power conversion circuits
- 11.5 Ω DC resistance value balances core loss and conduction loss for efficient filtering in DC-DC buck and boost converters
- Precision moulded package construction ensures consistent inductance tolerance and mechanical robustness in automated SMT assembly
Applications
SRP1265A-6R8M is suited for output filtering in DC-DC buck converters, boost regulators, and SEPIC topologies operating at switching frequencies between 100 kHz and 2 MHz where a stable 6.8 µH inductance is required. Its carbonyl powder core maintains permeability under load current, reducing output voltage ripple in point-of-load converters for embedded processors, FPGAs, and communication modules. Engineers also use it in EMI filter stages and choke applications within power supplies for industrial and consumer electronics.
Specifications
| Factory Lead Time | 16Weeks |
| YTEOL | 6 |
| Case/Size Code | 5349 |
| Core Material | CARBONYL POWDER |
| DC Resistance | 11.5Ω |
| Inductance-Nom (L) | 6.8 µH |
| Inductor Application | POWER INDUCTOR |
| Inductor Type | GENERAL PURPOSE INDUCTOR |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Height | 6.2mm |
| Package Length | 13.5mm |
| Package Style | SMT |
| Package Width | 12.5mm |
| Packing Method | TR, EMBOSSED, 13 INCH |
| Quality Factor-Min (at L-nom) | 20 |
| Rated Current-Max | 11.5A |
| Reference Standard | AEC-Q200 |
| Self Resonance Frequency | 13MHz |
| Shape/Size Description | RECTANGULAR PACKAGE |
| Shielded | YES |
| Surface Mount | YES |
| Terminal Finish | Tin (Sn) - with Nickel (Ni) barrier |
| Terminal Placement | DUAL ENDED |
| Terminal Shape | WRAPAROUND |
| Test Frequency | 0.1MHz |
| Tolerance | 20% |
| Package | Inductors Precision Moulded |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8504.50.80.00 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SRP1265A-6R8M:
suggested
suggested
Frequently Asked Questions
What is the inductance value and DC resistance of SRP1265A-6R8M?
SRP1265A-6R8M has a nominal inductance of 6.8 µH and a DC resistance of 11.5 Ω. The 6.8 µH value is well matched to switching frequencies from 100 kHz to 1 MHz in buck and boost converter designs, and the 11.5 Ω DCR contributes predictable conduction losses that engineers can account for in efficiency and thermal calculations for the power stage.
What core material does SRP1265A-6R8M use, and how does it affect performance under DC bias?
SRP1265A-6R8M uses a carbonyl powder core, which provides moderate permeability with a soft saturation characteristic. Unlike ferrite cores that saturate abruptly, carbonyl powder cores lose inductance gradually as DC bias current increases — typically maintaining 70% to 80% of the nominal 6.8 µH at rated current. This gradual rolloff prevents sudden converter instability and is advantageous in variable-load power supply designs.
In which DC-DC converter topologies is SRP1265A-6R8M most commonly deployed?
SRP1265A-6R8M is most commonly used in synchronous buck converters for point-of-load regulation at output voltages of 1 V to 5 V and load currents up to several hundred milliamps, as well as in boost converters for 5 V to 12 V step-up rails. The 6.8 µH inductance supports typical switching frequencies of 300 kHz to 600 kHz, achieving output ripple below 50 mV in well-designed PCB layouts. It also fits SEPIC and flyback auxiliary winding configurations.
What lead time and availability considerations apply when sourcing SRP1265A-6R8M?
SRP1265A-6R8M carries a factory lead time of 16 weeks from Bourns, making it important to plan inventory 4 months ahead for production builds. Design engineers should verify distributor stock levels early in the qualification phase, as the 5349 case size is a less common footprint than 4040 or 5040 standard inductors. Identifying a second-source inductor with equivalent 6.8 µH inductance and compatible DCR of 10 Ω to 13 Ω is recommended as a supply-chain risk mitigation strategy.
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