3483R-100M Equivalent & Substitute Parts

Part Overview

The 3483R-100M is a 10 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 1.4 A continuous current with a maximum DC resistance of 80 mOhm. This surface mount component operates across the temperature range of -20°C to 85°C and is ROHS3 compliant with unlimited moisture sensitivity rating. The part is currently in active production status with 880 pieces available in inventory.

Substitute parts become necessary when the original component experiences supply constraints, extended lead times, or when design requirements permit operation within broader electrical or thermal specifications. The parts listed below maintain functional equivalence through matching inductance value, tolerance, and core material while accommodating variations in current rating, shielding characteristics, and operating temperature ranges.

Substiute Parts

3483R-100M

API Delevan Inc.In Stock: 9713483R-100M Datasheet

Current PartRFQ

B82472G4103M000

EPCOS - TDK ElectronicsIn Stock: 4878B82472G4103M000 Datasheet

SimilarRFQ

SLF7032T-100M1R4-2PF

TDK CorporationIn Stock: 35473SLF7032T-100M1R4-2PF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3483R-100M is determined by the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 10 µH
• Inductance tolerance: ±20%
• Core material: Ferrite
• Core type: Drum core, wirewound
• Mounting type: Surface mount
• Test frequency: 100 kHz
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

Allowable Variation Parameters:

• Current rating: Equal to or greater than 1.4 A
• DC resistance: Equal to or less than 80 mOhm
• Operating temperature range: May extend beyond -20°C to 85°C
• Shielding: May differ (shielded or unshielded)
• Package case designation: Nonstandard variations acceptable
• Physical dimensions: Minor variations within surface mount constraints

The two substitute parts listed below satisfy all mandatory matching criteria while providing enhanced or equivalent electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

B82472G4103M000 (EPCOS - TDK Electronics): This substitute provides enhanced current rating of 1.7 A with matching DC resistance specification and extended operating temperature range of -55°C to 125°C. The shielded configuration offers electromagnetic interference mitigation compared to the unshielded original. This part maintains active product status and ROHS3 compliance. Selection is appropriate for applications requiring improved thermal performance or EMI suppression within the same footprint class.

SLF7032T-100M1R4-2PF (TDK Corporation): This substitute matches the original current rating of 1.4 A while providing superior DC resistance performance at 63.6 mOhm maximum, reducing power dissipation. The shielded design provides EMI benefits. Operating temperature range extends to -40°C to 105°C. However, this part carries "Not For New Designs" status, limiting its suitability for new product development. Selection is restricted to legacy system maintenance or applications where existing qualification data exists.

Frequently Asked Questions (FAQ)

Q: Can the B82472G4103M000 be used as a direct replacement for the 3483R-100M?

A: Yes. Both parts maintain 10 µH inductance at ±20% tolerance, ferrite drum core construction, surface mount configuration, and identical DC resistance specification of 80 mOhm maximum. The B82472G4103M000 provides higher current rating (1.7 A vs. 1.4 A) and extended temperature range (-55°C to 125°C vs. -20°C to 85°C). The shielded design differs from the unshielded original but does not prevent functional substitution. Physical dimensions vary slightly (7.30mm vs. 7.20mm) but remain within surface mount constraints.

Q: Why is the SLF7032T-100M1R4-2PF marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development and recommends against incorporation into new product designs. The part remains available for existing applications and legacy system support. Use of this substitute should be limited to maintenance scenarios or applications with established qualification history.

Q: What is the significance of shielding differences between these parts?

A: The original 3483R-100M is unshielded, while both substitutes (B82472G4103M000 and SLF7032T-100M1R4-2PF) are shielded. Shielding reduces electromagnetic field radiation and susceptibility to external interference. In applications sensitive to EMI, the shielded substitutes provide improved performance. In applications where shielding is not required, the shielded design introduces no functional penalty.

Q: Are there physical size constraints that limit substitution?

A: All three parts are surface mount components with similar footprints. The 3483R-100M measures 7.20 × 7.20 × 4.60mm maximum. The B82472G4103M000 measures 7.30 × 7.30 × 4.60mm, and the SLF7032T-100M1R4-2PF measures 7.00 × 7.00 × 3.40mm. These dimensional variations are within typical PCB layout tolerances for surface mount inductors and do not prevent board-level substitution.

Q: What is the impact of DC resistance differences on circuit performance?

A: The original part specifies 80 mOhm maximum DC resistance. The B82472G4103M000 matches this specification exactly. The SLF7032T-100M1R4-2PF provides lower DC resistance at 63.6 mOhm maximum, reducing resistive losses and power dissipation. Lower DC resistance improves efficiency in current-carrying applications and reduces thermal stress on the component.

Q: Are all three parts RoHS3 compliant?

A: Yes. The 3483R-100M, B82472G4103M000, and SLF7032T-100M1R4-2PF are all ROHS3 compliant with MSL rating of 1 (unlimited moisture sensitivity). All parts meet REACH requirements and carry EAR99 export classification.