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Home > Products > Inductors, Coils, Chokes > Fixed Inductors > IRF36ER1R8K
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IRF36ER1R8K

In Stock 650387 pcs Reference Price(In US Dollars)
1+
$0.1048
200+
$0.0406
500+
$0.0392
1000+
$0.0384
Manufacturer Part Number:
IRF36ER1R8K
Manufacturer / Brand
Vishay Dale
Part of Description:
FIXED IND 1.8UH 790MA 320MOHM TH
Datasheets:
IRF36ER1R8K(1).pdfIRF36ER1R8K(2).pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 650387 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number IRF36ER1R8K
Manufacturer / Brand Vishay Dale
Stock Quantity 650387 pcs Stock
Category Inductors, Coils, Chokes > Fixed Inductors
Description FIXED IND 1.8UH 790MA 320MOHM TH
Lead Free Status / RoHS Status: ROHS3 Compliant
Type -
Tolerance ±10%
Supplier Device Package -
Size / Dimension 0.157" Dia x 0.394" L (4.00mm x 10.00mm)
Shielding Unshielded
Series IRF-36
Ratings -
Q @ Freq 55 @ 7.96MHz
Package / Case Axial
Package -
Operating Temperature -20°C ~ 105°C
Mounting Type Through Hole
Material - Core Ferrite
Inductance Frequency - Test 7.96 MHz
Inductance 1.8 µH
Height - Seated (Max) -
Frequency - Self Resonant 121MHz
Features -
DC Resistance (DCR) 320mOhm Max
Current Rating (Amps) 790 mA
Current - Saturation (Isat) -

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



We accept the payment terms: Telegraphic Transfer(T/T), Credit Card, PayPal and Western Union.

PayPal:

PayPal Bank Information:
Company Name : IC COMPONENTS LTD
Paypal ID: Info@IC-Components.com

BANK TRANSFAR (Telegraphic Transfer)

Payment For Telegraphic Transfers:
Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
Beneficiary Bank SWIFT : COMMHKHK
Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


Frequently Asked Questions

Can I use IRF36ER1R8K in a buck regulator, and what design checks should I make first?
IRF36ER1R8K can be used in a low-power buck stage when the inductor current ripple and DC load current stay within the thermal and current limits of the part. With a 1.8 µH value and 320 mΩ max DCR, the main design checks are copper loss, inductor temperature rise, and ripple current at the chosen switching frequency. Because IRF36ER1R8K is unshielded, route it away from sensitive feedback traces and noise-sensitive analog nodes, and verify EMI in the final layout rather than relying only on schematic-level calculations.
Is IRF36ER1R8K a good choice when the design is sensitive to EMI or magnetic coupling?
IRF36ER1R8K is an unshielded axial inductor, so its magnetic field is more exposed than a shielded construction. That makes it workable in simple power paths and filtering, but less convenient when the inductor sits close to sensors, RF sections, or high-impedance nodes. If the layout is crowded or the design has strict conducted/radiated emissions targets, a shielded equivalent is usually easier to integrate. If IRF36ER1R8K is already selected, keep loop area small and place it so the field does not couple into nearby circuitry.
What should I check before replacing another 1.8 µH axial inductor with IRF36ER1R8K?
When substituting IRF36ER1R8K, compare more than the inductance value. Match the axial lead spacing, body size, DCR, current handling, and any thermal or mechanical constraints in the assembly. A part with the same 1.8 µH rating but higher resistance can increase voltage drop and heat, while a part with lower resistance but different geometry may not fit the board or may change loop inductance in the power stage. For drop-in replacement, verify both electrical and mechanical compatibility in the exact PCB footprint.
How close can my load current get to the IRF36ER1R8K rating in continuous operation?
IRF36ER1R8K is specified at 790 mA, but continuous operation near the upper end of the current range should be checked against temperature rise in the actual enclosure and PCB. With a 320 mΩ max DCR, resistive heating becomes noticeable as current increases, and elevated ambient temperature reduces margin further. In industrial or sealed products, it is common to validate the part at the expected worst-case ambient, airflow, and duty cycle rather than using room-temperature bench results alone.
Can IRF36ER1R8K be used in input or output filtering, and when is it less suitable?
IRF36ER1R8K can be used in low-current filter networks, especially where a 1.8 µH axial inductor is convenient for through-hole assembly. It is less suitable when the filter must handle high ripple current, low loss, or very tight EMI control, because the DCR and unshielded construction can limit performance. In power-line filters, check the impedance you need at the relevant frequency range and confirm that the inductor’s self-heating stays acceptable under the actual waveform, not only under DC current.
What are the practical risks if IRF36ER1R8K is operated with significant DC bias or ripple current?
With IRF36ER1R8K, the main risk is increased copper loss and temperature rise as current approaches the part’s practical limit. High ripple current can also shift effective inductance behavior in a circuit, which may alter converter stability, ripple amplitude, or filter attenuation. In designs where the load profile has peaks, motor-start transients, or pulsed current, it is safer to evaluate the part using the true waveform and not just average current.
Is IRF36ER1R8K suitable for industrial equipment that runs for long periods?
IRF36ER1R8K can be used in long-life equipment if the design keeps the inductor cool, mechanically stable, and electrically derated for the environment. Through-hole axial parts are often robust in vibration-resistant assemblies when the leads are properly supported, but thermal stress still matters, especially in enclosed cabinets or near heat sources. For industrial use, it is useful to verify solder joint reliability, board temperature, and current margin over the full operating range.
Can IRF36ER1R8K be used as a replacement for a ferrite bead or a higher-value inductor?
IRF36ER1R8K is not a direct substitute for a ferrite bead because the impedance profile is different; it behaves as an inductor, not a broadband high-frequency loss element. It is also not a drop-in replacement for a higher inductance part unless the circuit is already tolerant of lower inductance, because the filter corner frequency and transient response will change. When replacing a ferrite bead or a larger inductor, review the full frequency response, DC resistance, and current behavior before approving the change.
What layout or mounting details matter when using IRF36ER1R8K on a PCB?
IRF36ER1R8K is an axial through-hole inductor, so the PCB footprint should support the lead pitch and provide enough solder area for mechanical strength. Keep the current loop short, avoid placing it near temperature-sensitive components, and leave spacing around the body if the design has airflow or thermal constraints. Because it is unshielded, orientation relative to neighboring traces and components can affect coupling, so board placement can change noise performance even when the schematic stays the same.
How do I choose an alternative to IRF36ER1R8K from another brand if supply chain issues occur?
For an alternative to IRF36ER1R8K, look for a 1.8 µH axial through-hole inductor with similar DCR, current capability, lead style, and temperature rating. The electrical match matters, but the package geometry often determines whether the substitute is usable without a board change. If the alternate part is shielded instead of unshielded, EMI may improve but mechanical dimensions and parasitics can change; if it has lower DCR, efficiency may improve, but the saturation or thermal behavior still needs confirmation in the target circuit.

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IRF36ER1R8K

Vishay Dale

FIXED IND 1.8UH 790MA 320MOHM TH

In Stock: 650387

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