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IHSM4825RE100L
Vishay Dale
FIXED IND 10UH 3.1A 71 MOHM SMD
2223 Pcs New Original In Stock
10 µH Unshielded Inductor 3.1 A 71mOhm Max Nonstandard
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5.0 / 5.0
- (208 Ratings)
IHSM4825RE100L
Product Overview
1163093
DiGi Electronics Part Number
IHSM4825RE100L-DGManufacturer
Vishay Dale
IHSM4825RE100L
Description
FIXED IND 10UH 3.1A 71 MOHM SMDInventory
2223 Pcs New Original In Stock
10 µH Unshielded Inductor 3.1 A 71mOhm Max Nonstandard
Quantity
Minimum 1
Minimum 1
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IHSM4825RE100L Technical Specifications
Category
Fixed Inductors
Packaging
Tape & Reel (TR)
Series
IHSM-4825
Product Status
Active
Type
-
Material - Core
Ferrite
Inductance
10 µH
Tolerance
±15%
Current Rating (Amps)
3.1 A
Current - Saturation (Isat)
1.4A
Shielding
Unshielded
DC Resistance (DCR)
71mOhm Max
Q @ Freq
-
Frequency - Self Resonant
-
Ratings
-
Operating Temperature
-55°C ~ 125°C
Inductance Frequency - Test
1 kHz
Mounting Type
Surface Mount
Package / Case
Nonstandard
Supplier Device Package
-
Size / Dimension
0.540" L x 0.250" W (13.72mm x 6.35mm)
Height - Seated (Max)
0.225" (5.72mm)
Datasheet & Documents
HTML Datasheet
IHSM4825RE100L-DG
Environmental & Export Classification
RoHS Status
RoHS non-compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8504.50.4000
Additional Information
Standard Package
750
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
快速的出貨和細心的包裝，讓我感到非常安心。
de desembre 02, 2025
Une expérience d’achat très positive avec DiGi Electronics, prix avantageux et service après-vente impeccable.
de desembre 02, 2025
I am impressed with how well-packaged the products are, arriving in pristine condition every time.
de desembre 02, 2025
I received my order promptly, and the support team was very professional.
de desembre 02, 2025
The supply chain efficiency at DiGi Electronics ensures constant stock availability.
de desembre 02, 2025
Logistics are streamlined, leading to rapid delivery times.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the IHSM4825RE100L in a high-current buck converter operating near 3A?
When designing in the IHSM4825RE100L for a 3A buck converter, the primary risk is core saturation, as its Isat (1.4A) is significantly below the 3.1A rated current. The 3.1A rating reflects thermal current handling, not saturation limit. Operating near or above 1.4A peak inductor current can cause rapid inductance drop, leading to increased ripple, potential current runaway, and converter instability. To mitigate this, ensure peak transient currents—including inrush and load steps—stay below 1.4A, or consider a higher Isat alternative like the Würth Elektronik 7443551100 (10µH, 4.3A Isat). Use DC bias derating curves (if available) to estimate effective inductance under load and verify performance with bench testing under worst-case conditions.
Can the IHSM4825RE100L replace the Coilcraft XEL4020-102 in a 2MHz DC-DC regulator, and what compatibility issues should be evaluated?
Replacing the Coilcraft XEL4020-102 with the IHSM4825RE100L requires careful assessment. While both are 10µH unshielded SMD inductors, the IHSM4825RE100L has higher DCR (71mΩ max vs. ~40mΩ) and lower Isat (1.4A vs. 2.8A), increasing conduction losses and risk of saturation in 2MHz operation. Additionally, the larger footprint (13.72mm x 6.35mm) may not fit the XEL4020-102 layout, requiring PCB rework. The unshielded nature of both increases EMI sensitivity, but the IHSM4825RE100L's lack of shielding could worsen noise coupling in dense layouts. Verify thermal performance, saturation margin, and EMI behavior in the target circuit before substitution.
How does the unshielded core of the IHSM4825RE100L impact EMI in compact power designs, and what layout strategies reduce interference?
The unshielded ferrite core in the IHSM4825RE100L emits higher stray magnetic fields compared to shielded types, increasing EMI risks in space-constrained designs with sensitive analog traces or adjacent inductors. This can lead to crosstalk, noise in feedback lines, or ADC errors. To reduce interference, maintain minimum clearance (≥3mm) from noise-sensitive nodes, route high-speed signals perpendicular beneath the inductor (avoiding parallel runs), and place the inductor at the edge of the power stage away from control circuitry. Use ground planes strategically—avoid continuous planes directly under the inductor to prevent eddy current losses—but ensure overall ground integrity. Consider adding ferrite shielding cans or localized copper shielding if emissions fail compliance testing.
What reliability concerns should be evaluated when using the IHSM4825RE100L in automotive or industrial applications with wide temperature swings?
In automotive or industrial settings, the IHSM4825RE100L's -55°C to 125°C rating is adequate, but reliability risks remain due to its nonstandard package and unshielded construction. Thermal cycling can stress solder joints given the large 13.72mm x 6.35mm footprint, increasing risk of fatigue cracks. Use NSMD (non-solder mask defined) pads with proper thermal relief and follow IPC-7351 guidelines for land patterning. Avoid placing near high-thermal-mass components to reduce differential expansion. Additionally, the lack of shielding makes performance more susceptible to external magnetic fields in motor control or high-power systems. Verify long-term stability with thermal imaging and inductance monitoring under repeated load cycling.
What are the implications of the IHSM4825RE100L being RoHS non-compliant, and what are viable drop-in replacements that meet modern environmental standards?
The IHSM4825RE100L's RoHS non-compliance limits its use in consumer, medical, or export-driven designs requiring environmental regulations adherence, risking compliance failures and market access issues. For a drop-in replacement, consider the Bourns SMS4825-100M-RC (10µH, 75mΩ DCR, 1.3A Isat), which offers similar footprint and specs but RoHS-compliant materials. Alternatively, the TDK VLS4825HB-100MR15 (10µH, 15mΩ typ, shielded) provides lower DCR and better EMI performance in a slightly different footprint. When replacing, recheck saturation current, thermal performance, and PCB layout compatibility—especially pad size and keepout zones—to ensure reliable operation without redesign overhead.
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DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
IHSM4825RE100L CAD Models
Vishay Dale IHSM4825RE100L PCB symbols & footprints
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