P0751.472NL Equivalent & Substitute Parts

Part Overview

The P0751.472NL is a 4.7 µH unshielded wirewound inductor manufactured by Pulse Electronics, rated for 4.8 A continuous current with a maximum DC resistance of 33mOhm. This surface mount component operates across the temperature range of -40°C to 130°C and is ROHS3 compliant. The part is currently active in production with 1183 pieces available in stock. Substitute parts are identified for applications requiring equivalent inductance and current handling characteristics while accommodating variations in DC resistance, saturation current, and operating temperature ranges.

Substiute Parts

P0751.472NL

Pulse ElectronicsIn Stock: 1210P0751.472NL Datasheet

Current PartRFQ

74456047

Würth ElektronikIn Stock: 307474456047 Datasheet

SimilarRFQ

SDR1005-4R7ML

Bourns Inc.In Stock: 4834SDR1005-4R7ML Datasheet

SimilarRFQ

UP2B-4R7-R

Eaton - Electronics DivisionIn Stock: 2253UP2B-4R7-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P0751.472NL are qualified based on the following critical parameters:

• Inductance value of 4.7 µH with ±20% tolerance
• Unshielded construction
• Surface mount packaging
• Operating temperature range compatibility
• Current rating sufficient for 4.8 A continuous operation
• Saturation current (Isat) at or above 5.4 A
• DC resistance within acceptable limits for the application
• ROHS3 compliance and MSL 1 rating

The three identified substitutes (74456047, SDR1005-4R7ML, UP2B-4R7-R) meet these core electrical and mechanical requirements while offering variations in DC resistance, saturation characteristics, and maximum operating temperature.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

The 74456047 (Würth Elektronik WE-PD4 series) offers improved DC resistance (19mOhm vs. 33mOhm) and higher saturation current (6 A vs. 5.4 A) with a maximum operating temperature of 125°C. This part is suitable for applications where lower resistive losses are beneficial.

The SDR1005-4R7ML (Bourns SDR1005 series) provides equivalent saturation current (5.4 A) and reduced DC resistance (19mOhm) with a maximum operating temperature of 125°C. The current rating of 4.5 A is within acceptable range for the 4.8 A requirement.

The UP2B-4R7-R (Eaton UNI-PAC™ series) delivers the highest current rating (5.5 A) and lowest DC resistance (16.5mOhm) but operates only to 85°C maximum temperature. This part is suitable for applications not requiring the full 130°C upper temperature range of the main part.

Frequently Asked Questions (FAQ)

Q: Can the 74456047 directly replace the P0751.472NL? A: Yes. Both parts share identical inductance (4.7 µH), tolerance (±20%), shielding (unshielded), and surface mount packaging. The 74456047 offers lower DC resistance and higher saturation current. Operating temperature maximum differs by 5°C (125°C vs. 130°C).

Q: What is the impact of DC resistance differences between these parts? A: DC resistance affects power dissipation and thermal performance. The main part (33mOhm) has higher resistance than the substitutes (16.5–19mOhm). Lower resistance reduces heat generation, which may improve efficiency in current-limited applications.

Q: Is the UP2B-4R7-R suitable for high-temperature applications? A: The UP2B-4R7-R operates to a maximum of 85°C, which is 45°C lower than the main part's 130°C rating. This part is not suitable for applications requiring the full temperature range of the P0751.472NL.

Q: Do all substitutes have the same saturation current? A: No. The 74456047 has 6 A saturation current, the SDR1005-4R7ML has 5.4 A (matching the main part), and the UP2B-4R7-R has 4.2 A. Saturation current determines the maximum current before inductance degrades significantly.

Q: Are there packaging differences between these parts? A: All parts are surface mount with nonstandard package dimensions. Physical dimensions vary slightly: the main part is 12.95mm × 9.40mm × 5.46mm, while substitutes range from 12.70mm × 10.00mm × 5.00mm to 13.97mm × 10.41mm × 6.00mm. PCB layout verification is required for mechanical fit.

Q: Which substitute offers the best overall performance? A: Selection depends on application requirements. The 74456047 balances improved DC resistance and saturation current with acceptable temperature range. The SDR1005-4R7ML matches saturation current with reduced resistance. The UP2B-4R7-R maximizes current rating but limits temperature operation.