HC8LP-150-R Equivalent & Substitute Parts

Part Overview

The HC8LP-150-R is a 15 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 3.4 A continuous current with a maximum DC resistance of 99.4 mOhm and operates across the temperature range of -40°C to 155°C. The part is ROHS3 compliant and carries an active product status with 960 pieces currently in stock.

Substitute parts are identified when equivalent inductance values, current ratings, and core materials meet the electrical and mechanical requirements of the application while maintaining compatibility with the mounting footprint and operating environment.

Key Parameters

Parameter	Value
Inductance	15 µH
Tolerance	±20%
Current Rating	3.4 A
Current - Saturation (Isat)	5.5 A
DC Resistance (DCR)	99.4 mOhm Max
Core Type	Drum Core, Wirewound
Core Material	Iron Powder
Shielding	Unshielded
Operating Temperature	-40°C ~ 155°C
Mounting Type	Surface Mount
Package	Nonstandard
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the HC8LP-150-R is based on the following critical parameters:

Primary Substitution Criteria:

Inductance value: 15 µH (matching tolerance ±20%)
Mounting type: Surface Mount
Package classification: Nonstandard
Inductance test frequency: 100 kHz
RoHS compliance: ROHS3 Compliant
Moisture sensitivity: MSL 1 (Unlimited)

Secondary Compatibility Factors:

Current rating must equal or exceed 3.4 A
DC resistance must not exceed 99.4 mOhm
Operating temperature range must encompass -40°C to 155°C
Core type: Drum Core, Wirewound construction

The substitute part SRP1038A-150M from Bourns Inc. meets these criteria with matching inductance, equivalent tolerance, superior current rating (6.25 A), lower DC resistance (45 mOhm), and compatible surface mount packaging. Both parts share ROHS3 compliance and MSL 1 ratings.

Parameter Comparison

Parameter	HC8LP-150-R (Eaton)	SRP1038A-150M (Bourns)
Inductance	15 µH	15 µH
Tolerance	±20%	±20%
Current Rating (Amps)	3.4 A	6.25 A
Current - Saturation (Isat)	5.5 A	10 A
DC Resistance (DCR)	99.4 mOhm Max	45 mOhm Max
Core Type	Drum Core, Wirewound	Drum Core, Wirewound
Core Material	Iron Powder	Carbonyl Powder
Shielding	Unshielded	Shielded
Operating Temperature	-40°C ~ 155°C	-40°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount
Package	Nonstandard	Nonstandard
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
Size / Dimension	10.90mm L x 10.40mm W	11.00mm L x 10.00mm W
Height - Seated (Max)	3.50mm	4.00mm

Engineering Selection Recommendations

HC8LP-150-R Selection Basis: The HC8LP-150-R remains the primary choice when unshielded construction is required and the 3.4 A current rating is sufficient for the application. Active product status and ROHS3 compliance support continued use in new designs. The component is available in quantity (960 pieces in stock).

SRP1038A-150M Selection Basis: The SRP1038A-150M from Bourns Inc. is selected when higher current capacity (6.25 A vs. 3.4 A) or lower DC resistance (45 mOhm vs. 99.4 mOhm) is required. The shielded construction provides electromagnetic isolation in noise-sensitive applications. AEC-Q200 automotive qualification and higher saturation current (10 A vs. 5.5 A) support demanding environments. Both parts maintain ROHS3 compliance and MSL 1 ratings. The substitute part has larger inventory availability (15,593 pieces).

Dimensional Considerations: Physical dimensions differ slightly. The SRP1038A-150M is 0.5mm taller (4.00mm vs. 3.50mm) and marginally larger in length (11.00mm vs. 10.90mm). PCB layout and component clearance must accommodate these differences.

Frequently Asked Questions (FAQ)

Q: Can SRP1038A-150M directly replace HC8LP-150-R in all applications?

A: Direct replacement is possible when the application tolerates shielded construction, the 0.5mm height difference, and the slightly larger footprint. The superior current rating and lower DC resistance of the SRP1038A-150M make it suitable for higher-power circuits. Unshielded operation is not available with this substitute.

Q: What is the primary difference between these inductors?

A: The HC8LP-150-R uses iron powder core material and is unshielded, while the SRP1038A-150M uses carbonyl powder core material and is shielded. The SRP1038A-150M provides higher current capacity (6.25 A vs. 3.4 A) and lower DC resistance (45 mOhm vs. 99.4 mOhm).

Q: Are both parts suitable for automotive applications?

A: The SRP1038A-150M carries AEC-Q200 automotive qualification. The HC8LP-150-R does not list automotive certification in the provided specifications.

Q: Do both parts meet RoHS requirements?

A: Yes, both HC8LP-150-R and SRP1038A-150M are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the impact of different core materials?

A: Iron powder cores (HC8LP-150-R) and carbonyl powder cores (SRP1038A-150M) exhibit different frequency response and loss characteristics. The carbonyl powder core in the SRP1038A-150M provides a self-resonant frequency of 9 MHz and Q factor of 20 @ 100 kHz.

Q: How do the operating temperature ranges compare?

A: The HC8LP-150-R operates from -40°C to 155°C, while the SRP1038A-150M operates from -40°C to 150°C. The HC8LP-150-R supports 5°C higher maximum temperature.

Q: What packaging format is used for both parts?

A: Both inductors are supplied in Tape & Reel (TR) packaging for automated assembly. Both use nonstandard package classifications.

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