P1252.152NLT Equivalent & Substitute Parts

Part Overview

The P1252.152NLT is a 1.5 µH unshielded wirewound surface mount inductor manufactured by Pulse Electronics, rated for 15 A continuous current with a maximum DC resistance of 4 mOhm. This component is classified as Active product status and is RoHS3 compliant. Substitute parts may be required due to inventory constraints, design optimization, or application-specific performance requirements within the allowed electrical and mechanical parameter ranges.

Substiute Parts

P1252.152NLT

Pulse ElectronicsIn Stock: 753P1252.152NLT Datasheet

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74457012

Würth ElektronikIn Stock: 102974457012 Datasheet

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74457018

Würth ElektronikIn Stock: 123574457018 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P1252.152NLT are qualified based on the following criteria:

Primary Substitution Parameters:

• Inductance value within ±20% tolerance band (1.2 µH to 1.8 µH)
• Current rating equal to or greater than 15 A
• DC resistance equal to or less than 4 mOhm
• Unshielded configuration
• Surface mount packaging in Tape & Reel format
• RoHS3 compliance
• Operating temperature range covering -40°C minimum

Acceptable Variations:

• Inductance tolerance: ±20% (standard specification)
• Current saturation (Isat) values may vary
• Physical dimensions may differ within nonstandard package constraints
• Core material composition (ferrite drum core acceptable for wirewound type)

The two qualified substitutes meet these criteria with minor deviations in inductance value and current rating, which remain within acceptable application ranges for equivalent circuit performance.

Parameter Comparison

Engineering Selection Recommendations

74457012 (Würth Elektronik WE-PD4 Series): This substitute provides the closest electrical match with 15 A current rating and 4 mOhm maximum DC resistance. The 1.2 µH inductance falls within the ±20% tolerance specification. The higher saturation current (30 A) provides additional margin. Operating temperature range of -40°C to 125°C covers the minimum requirement. RoHS3 compliance and MSL 1 rating match the main part specifications.

74457018 (Würth Elektronik WE-PD4 Series): This substitute offers 1.8 µH inductance, which is at the upper tolerance boundary. The current rating is reduced to 13 A, which is below the 15 A specification of the main part. DC resistance increases to 5 mOhm maximum. This part is suitable only for applications where the reduced current rating and increased resistance are acceptable. Operating temperature and compliance certifications remain equivalent.

Both substitutes maintain RoHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity rating. Selection between substitutes depends on circuit requirements for inductance value, current capacity, and DC resistance tolerance.

Frequently Asked Questions (FAQ)

Q: Can 74457012 be used as a direct replacement for P1252.152NLT? A: 74457012 qualifies as a substitute based on matching current rating (15 A), DC resistance (4 mOhm max), and inductance within tolerance (1.2 µH vs. 1.5 µH nominal). The ±20% tolerance specification permits this 0.3 µH difference. Compliance certifications and packaging format are identical.

Q: What are the limitations of using 74457018 as a substitute? A: 74457018 has a reduced current rating of 13 A compared to the 15 A specification of P1252.152NLT. Additionally, DC resistance is 5 mOhm maximum versus 4 mOhm maximum for the main part. These parameters make 74457018 suitable only for applications with lower current demands and where increased resistance is acceptable.

Q: Are there physical dimension differences between the main part and substitutes? A: All three parts are classified as nonstandard package format. P1252.152NLT measures 0.879" L × 0.596" W × 0.295" H. Both Würth substitutes measure 0.866" L × 0.591" W × 0.307" H. These minor dimensional variations must be verified for PCB layout compatibility.

Q: Do all parts meet the same compliance requirements? A: Yes. P1252.152NLT, 74457012, and 74457018 are all RoHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating. All are classified under ECCN EAR99 and HTSUS 8504.50.4000.

Q: What is the inductance tolerance specification for substitution? A: All parts carry ±20% inductance tolerance. This means the P1252.152NLT nominal 1.5 µH can range from 1.2 µH to 1.8 µH in actual production. Substitutes within this range are electrically equivalent for tolerance purposes.

Q: How do operating temperature ranges compare? A: P1252.152NLT operates from -40°C to 130°C. Both Würth substitutes operate from -40°C to 125°C. The main part has a 5°C higher maximum temperature rating. Applications requiring operation above 125°C require the main part.