Description
The SRN4018-4R7M is an inductor designed by Bourns, a leading manufacturer of electronic components. It features a semi-shielded construction with a ferrite core that provides a high inductance value (4.7 uH) and low DC resistance (0.084 Ohm DCR). This inductor is suitable for power supply applications operating within the 100 kHz frequency range, with a quality factor of
The package type is nonstandard, indicating that it may not conform to standard component sizes or mounting configurations.
Features
The SRN4018-4R7M is a power inductor designed by Bourns. Key features of this component are:
- Semi-shielded construction
- : Provides better magnetic shielding for reduced EMI.
- Inductive value
- : 4.7 uH, suitable for filtering and impedance matching applications.
- Current rating
- : 1.9 A, indicating the safe continuous current flow through the inductor.
- DC resistance (DCR)
- : 0.084 Ohm, reflecting the electrical resistance when there is no AC signal.
These features make the SRN4018-4R7M an ideal choice for power supply filtering, motor control, and other demanding applications where high inductance, low DCR, and current capability are crucial.
Package
The package type of SRN4018-4R7M is Nonstandard.
Manufacturer
The manufacturer of the SRN4018-4R7M is Bourns, a leading global producer of electronic components. Bourns is typically considered a manufacturing or technology company, focused on providing high-quality components to various industries. Their expertise and product range span across passive electronics like inductors, capacitors, and resistors.
Applications
The SRN4018-4R7M inductor from Bourns is designed for power supply applications, specifically in the management of high-frequency currents and energy storage. Its semi-shielded construction makes it suitable for noise-sensitive environments.
Spezifikationen
| Product Category |
Power Inductors - SMD |
Type |
Power Inductor |
| Termination Style |
SMD/SMT |
Shielding |
Semi-Shielded |
| Inductance |
4.7 uH |
Tolerance |
20 % |
| Maximum DC Current |
1.9 A |
Maximum DC Resistance |
84 mOhms |
| Saturation Current |
2 A |
Minimum Operating Temperature |
- 25 C |
| Maximum Operating Temperature |
+ 120 C |
Mounting Style |
PCB Mount |
| Length |
4 mm |
Width |
4 mm |
| Height |
1.8 mm |
Core Material |
Ferrite |
| Application |
Power |
Core Type |
Wirewound |
| Product |
Power Inductors |
Product Type |
Power Inductors - SMD |
| Self Resonant Frequency |
35 MHz |
Factory Pack Quantity |
3000 |
| Subcategory |
Inductors, Chokes & Coils |
Termination |
Standard |
| Test Frequency |
100 kHz |
Unit Weight |
0.003598 oz |
| Package/Case |
Nonstandard |
SRN4018-4R7M FAQs
1.Q: What is the operating temperature range for the Bourns SRN4018 4.7μH inductor?
A: It operates reliably from -40°C to +125°C, suitable for harsh environments.
2.Q: What is the terminal finish of the Bourns SRN4018 4.7μH inductor?
A: The terminals are finished with Tin-Silver-Copper (SnAgCu) for reliable solderability and corrosion resistance.
3.Q: What is the DC resistance (DCR) of the Bourns SRN4018 4.7μH inductor?
A: The DCR is 0.084Ω, contributing to low power loss in high-current applications.
4.Q: What is the self-resonant frequency (SRF) of the Bourns SRN4018 4.7μH inductor?
A: The SRF is 35 MHz, which is important for high-frequency noise suppression considerations.
5.Q: Is the Bourns SRN4018 4.7μH inductor RoHS compliant?
A: Yes, it is RoHS compliant and follows industry environmental standards.
6.Q: What is the maximum DC current rating for the Bourns SRN4018 4.7μH inductor?
A: The rated RMS current is 1.9A, ensuring stable performance in power applications.
7.Q: What is the package size of the Bourns SRN4018 4.7μH inductor?
A: The package dimensions are 4mm (L) × 4mm (W) × 1.8mm (H), with a nonstandard 1616 case size.
8.Q: What are the typical applications for the Bourns SRN4018 4.7μH inductor?
A: It is commonly used in power inductors for DC-DC converters, voltage regulators, power supplies, and noise filtering in consumer electronics, automotive, and industrial applications.
9.Q: What are the key features of the Bourns SRN4018 series 4.7μH shielded wire-wound SMD inductor?
A: Key features include a 4.7μH inductance (±20%), 1.9A rated current, ferrite core, semi-shielded construction, 0.084Ω DC resistance, and an operating temperature range of -40°C to +125°C.
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