3483R-151M Equivalent & Substitute Parts

Part Overview

The 3483R-151M is a 150 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 350 mA continuous current with a maximum DC resistance of 850 mOhm. This surface mount component operates across the temperature range of -20°C to 85°C and is ROHS3 compliant. The part is currently in active production status with 1011 units available in inventory.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit operation within the electrical and mechanical tolerances of alternative manufacturers' offerings.

Substiute Parts

3483R-151M

API Delevan Inc.In Stock: 10643483R-151M Datasheet

Current PartRFQ

SLF7032T-151MR37-2PF

TDK CorporationIn Stock: 29065SLF7032T-151MR37-2PF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3483R-151M is determined by the following critical parameters:

• Inductance value: 150 µH (±20% tolerance acceptable)
• Current rating: minimum 350 mA
• DC resistance: maximum 850 mOhm
• Core material: Ferrite drum core wirewound construction
• Mounting: Surface mount configuration
• Package compatibility: 2-SMD or equivalent footprint
• Environmental compliance: ROHS3 and REACH status

The substitute part SLF7032T-151MR37-2PF meets these electrical criteria with equivalent inductance, higher current rating (370 mA), and lower DC resistance (780 mOhm). Physical dimensions remain within acceptable tolerance for PCB layout compatibility. Shielding differences and package designation variations do not preclude functional substitution when electromagnetic interference is not a critical design constraint.

Parameter Comparison

Engineering Selection Recommendations

The 3483R-151M remains the preferred selection for new designs due to its active production status and unrestricted design lifecycle support from API Delevan Inc.

The SLF7032T-151MR37-2PF qualifies as a functional equivalent for existing applications or legacy design support. This substitute offers superior electrical performance with lower DC resistance and extended temperature range capability (-40°C to 105°C versus -20°C to 85°C). However, the "Not For New Designs" status indicates TDK Corporation has discontinued active development for this part number. Selection of this substitute should be limited to replacement scenarios or applications where supply of the primary part is unavailable.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols. The shielded construction of the substitute may provide additional electromagnetic isolation in noise-sensitive applications, though this represents a design change from the original unshielded specification.

Frequently Asked Questions (FAQ)

Q: Can the SLF7032T-151MR37-2PF directly replace the 3483R-151M on existing PCBs?

A: Physical dimensions are compatible within standard PCB tolerances (7.20mm vs 7.00mm length/width, 4.60mm vs 3.40mm height). Electrical performance is equivalent or superior. Shielding differences should be evaluated based on circuit-level electromagnetic requirements.

Q: What is the significance of the "Not For New Designs" status on the substitute part?

A: This designation indicates the manufacturer has concluded active development and support for this part number. While existing inventory remains available and functional, long-term supply cannot be guaranteed. New designs should prioritize the 3483R-151M or identify alternative suppliers with active product status.

Q: Are there differences in DC resistance that affect circuit performance?

A: The substitute part exhibits 780 mOhm maximum DCR compared to 850 mOhm maximum for the primary part. This 70 mOhm reduction results in lower power dissipation and improved efficiency, representing a performance advantage in current-limited applications.

Q: Does the shielded construction of the substitute affect compatibility?

A: Shielding provides additional electromagnetic isolation. In applications where the original unshielded design was specified, the shielded substitute will not introduce incompatibility. Shielding may be beneficial in high-noise environments but is not required for functional equivalence.

Q: Are both parts suitable for the same operating temperature range?

A: The primary part operates -20°C to 85°C. The substitute extends to -40°C to 105°C. Applications within the primary part's range are fully compatible with the substitute. Applications requiring extended temperature operation should specify the substitute part.