ChipApex | Global Electronic Components Supplier
103R-391H
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：FIXED IND 390NH 635MA 240MOHM SM
- Series：103R
- Mfr：Delevan
- Package：Tape & Reel (TR)
- Type：-
- Material - Core：Ferrite
- Inductance：390 nH
- Tolerance：±3%
- Current Rating (Amps)：635 mA
- Current - Saturation (Isat)：-
- Shielding：Unshielded
- DC Resistance (DCR)：240mOhm Max
- Q @ Freq：22 @ 25MHz
- Frequency - Self Resonant：235MHz
- Ratings：-
- Operating Temperature：-55°C ~ 125°C
- Inductance Frequency - Test：25 MHz
- Mounting Type：Surface Mount
- Package / Case：Nonstandard, 2 Lead
- Supplier Device Package：-
- Size / Dimension：0.100" L x 0.100" W (2.54mm x 2.54mm)
- Height - Seated (Max)：0.075" (1.91mm)
Download product information
Overview
The Delevan 103R-391H is a surface-mount RF inductor with an inductance of 390 nH and a tolerance of 3%. It features a maximum DC resistance of 240 mOhms and a minimum Q factor of 22. The component supports a maximum DC current of 635 mA and has a self-resonant frequency of 175 MHz. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height. The device is unshielded and utilizes standard SMD/SMT termination.
Feature Summary
- Unshielded construction for specific RF circuit requirements
- Standard SMD/SMT termination for PCB mounting
- Ferrite core material composition
Applications
- RF circuits
- Filtering applications
- High-frequency electronic circuits
Procurement Notes
Verify the exact maximum DC resistance specification against the manufacturer datasheet, as values may vary between 240 mOhms and 260 mOhms depending on the specific revision or source documentation. Confirm RoHS compliance status directly with the supplier prior to ordering. Ensure the unshielded design aligns with the electromagnetic interference constraints of the target application environment.
Selection Notes
Select this component when a 390 nH inductance value is required for high-frequency signal processing. The unshielded design necessitates careful layout consideration to prevent magnetic coupling with adjacent components. Verify that the 635 mA current rating meets the operational load requirements and that the 175 MHz self-resonant frequency is sufficient for the intended operating band.
Part Context
This part belongs to the 103/R series of fixed inductors manufactured by Delevan. It is categorized under RF Inductors - SMD within the broader Inductors, Chokes & Coils subcategory. The product is designed for surface mount technology installation on printed circuit boards, serving as a passive component in radio frequency signal paths.
Replacement Considerations
The 103R-471HS offers a similar form factor but differs in inductance (470 nH) and DC resistance (260 mOhms). The 103R-681HS provides 680 nH inductance with higher DC resistance (520 mOhms). Substitution requires verification of electrical parameter compatibility with the original circuit design.
FAQ
Is the 103R-391H shielded?
No, the 103R-391H is an unshielded inductor.
What is the self-resonant frequency of this component?
The self-resonant frequency is 175 MHz.
