VLP4612T-150MR42 Equivalent & Substitute Parts

Part Overview

The VLP4612T-150MR42 is a 15 µH unshielded wirewound inductor manufactured by TDK Corporation, rated for 420 mA continuous current with a maximum DC resistance of 960 mOhm. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part is available in nonstandard surface mount packaging with unlimited moisture sensitivity rating.

Substiute Parts

VLP4612T-150MR42

TDK CorporationIn Stock: 893VLP4612T-150MR42 Datasheet

Current PartRFQ

VLS3012HBX-150M

TDK CorporationIn Stock: 8134VLS3012HBX-150M Datasheet

MFR RecommendedRFQ

P1812R-153K

API Delevan Inc.In Stock: 1217P1812R-153K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the VLP4612T-150MR42 is determined by the following critical parameters:

• Inductance Value: 15 µH (primary electrical requirement)
• Current Rating: Minimum 420 mA to maintain functional equivalence
• DC Resistance: Lower DCR values are acceptable as they improve efficiency
• Mounting Type: Surface mount compatibility required
• Physical Footprint: Nonstandard packages with similar or smaller dimensions acceptable
• Shielding: Both shielded and unshielded configurations acceptable depending on application requirements

Two active substitute parts meet these criteria: VLS3012HBX-150M (TDK Corporation, shielded drum core configuration with enhanced current rating) and P1812R-153K (API Delevan Inc., unshielded ferrite core with standard 1812 metric package).

Parameter Comparison

Engineering Selection Recommendations

VLS3012HBX-150M is recommended as the primary substitute when shielding is required or beneficial for EMI mitigation. This part offers superior current handling (1.23 A vs. 420 mA), lower DC resistance (636 mOhm vs. 960 mOhm), and active product status with full RoHS3 compliance. The shielded drum core configuration provides additional electromagnetic isolation. Physical footprint is more compact (3.00mm x 3.00mm vs. 4.60mm x 3.00mm), which may require PCB layout verification.

P1812R-153K is recommended as the alternative substitute when unshielded configuration is required and standard package compatibility is prioritized. This part maintains unshielded operation consistent with the original design, offers improved inductance tolerance (±10% vs. ±20%), and provides adequate current margin (450 mA vs. 420 mA). The 1812 metric package is industry-standard, simplifying procurement and inventory management. Operating temperature range extends to -55°C ~ 125°C, exceeding typical industrial requirements. Height is increased (3.40mm vs. 1.20mm), requiring PCB clearance verification.

Both substitutes are active products with full regulatory compliance (RoHS3, REACH Unaffected, EAR99 classification).

Frequently Asked Questions (FAQ)

Q: Can VLS3012HBX-150M replace VLP4612T-150MR42 in all applications?

A: VLS3012HBX-150M meets all electrical requirements (15 µH inductance, 420 mA minimum current rating). The shielded configuration provides additional EMI performance. Physical dimensions differ: the substitute is smaller in length and width (3.00mm x 3.00mm vs. 4.60mm x 3.00mm) but identical in height (1.20mm). PCB layout compatibility must be verified before substitution.

Q: What are the advantages of P1812R-153K over VLS3012HBX-150M?

A: P1812R-153K maintains unshielded operation matching the original design intent, uses a standard 1812 metric package for simplified sourcing, and provides tighter inductance tolerance (±10% vs. ±20%). The ferrite core construction offers different frequency characteristics. The primary trade-off is increased height (3.40mm vs. 1.20mm), which may impact board density.

Q: Are there any compliance differences between the original part and substitutes?

A: The original VLP4612T-150MR42 compliance status is not fully specified. Both substitutes are ROHS3 compliant and REACH Unaffected. All three parts share EAR99 classification and unlimited moisture sensitivity rating (MSL 1).

Q: Which substitute has better DC resistance performance?

A: VLS3012HBX-150M has the lowest maximum DC resistance at 636 mOhm, compared to 780 mOhm for P1812R-153K and 960 mOhm for the original part. Lower DC resistance reduces power dissipation and heat generation in the inductor.

Q: Can both substitutes handle the original 420 mA current requirement?

A: Yes. VLS3012HBX-150M is rated for 1.23 A continuous current (193% margin). P1812R-153K is rated for 450 mA continuous current (7% margin). Both exceed the 420 mA requirement, though VLS3012HBX-150M provides significantly greater current headroom.