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RCH855NP-180M is listed in the Fixed Inductors range at ChipApex. The manufacturer field lists Sumida America Components Inc.. Its product description is FIXED IND 18UH 900MA 100 MOHM TH. Review the specifications below when checking this part for your BOM.
Fixed Inductors specifications for RCH855NP-180M
- Description：FIXED IND 18UH 900MA 100 MOHM TH
- Series：RCH-855
- Mfr：Sumida America Components Inc.
- Package：Tape & Reel (TR)
- Type：Drum Core, Wirewound
- Material - Core：Ferrite
- Inductance：18 µH
- Tolerance：±20%
- Current Rating (Amps)：900 mA
- Current - Saturation (Isat)：2A
- Shielding：Unshielded
- DC Resistance (DCR)：100mOhm Max
- Q @ Freq：-
- Frequency - Self Resonant：-
- Ratings：-
- Operating Temperature：-40°C ~ 100°C
- Inductance Frequency - Test：2.52 MHz
- Mounting Type：Through Hole
- Package / Case：Radial, Vertical Cylinder (Open)
- Supplier Device Package：-
- Size / Dimension：0.307" Dia (7.80mm)
- Height - Seated (Max)：0.217" (5.50mm)
- Features：-
Fixed Inductors datasheet and documents for RCH855NP-180M
Fixed Inductors Overview
The RCH855NP-180M is a leaded power inductor from Sumida's RCH855 series, designed for through-hole PCB mounting. It features an unshielded radial construction with a ferrite core and vertical cylinder form factor. The component provides an inductance of 18 µH with a tolerance of ±20%. It supports a maximum DC current of 370 mA and has a saturation current of approximately 440 mA. The unit measures 7.8 mm in diameter and 5.5 mm in height, with a standard lead spacing of 5 mm.
Fixed Inductors Feature Summary
- Radial through-hole configuration for standard PCB assembly
- Unshielded wirewound design utilizing a ferrite core
- Vertical cylinder package structure
Fixed Inductors Applications
- Power supply circuit filtering
- DC-DC converter energy storage
- General electronic power conditioning
Fixed Inductors Procurement Notes
Verify the specific suffix 'M' indicates a 20% tolerance variant rather than the standard 'K' (10%) found in other series members. Confirm that the 370 mA rated current aligns with thermal constraints in the target application. Ensure the unshielded nature does not cause interference issues within the final assembly layout.
Fixed Inductors Selection Notes
Select this component when a low-inductance value near 18 µH is required for high-frequency switching applications. The radial leaded format is suitable for manual or wave soldering processes where surface-mount alternatives are unsuitable. Consider the physical dimensions to ensure adequate clearance on the printed circuit board.
Fixed Inductors Part Context
This part belongs to the RCH855NP series of leaded power inductors manufactured by Sumida America Components Inc. The series offers various inductance values ranging from microhenries to millihenries, catering to diverse power management requirements. The RCH855NP-180M specifically addresses needs for lower inductance values compared to higher-rated counterparts like the RCH855NP-181K.
Fixed Inductors Replacement Considerations
RCH855NP-181K
Fixed Inductors FAQ
What is the inductance tolerance for the RCH855NP-180M?
The RCH855NP-180M has an inductance tolerance of ±20%, as indicated by the 'M' suffix.
Is the RCH855NP-180M shielded?
No, the RCH855NP-180M is an unshielded inductor.
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