PM74SH-150M-RC Equivalent & Substitute Parts

Part Overview

The PM74SH-150M-RC is a 15 µH shielded drum core wirewound inductor manufactured by Bourns Inc., rated for 1.6 A continuous current with a maximum DC resistance of 62 mOhm. This surface mount component operates across the temperature range of -40°C to 125°C and is ROHS3 compliant. The part is currently active in production with 722 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and current rating category.

Key Parameters

Parameter	PM74SH-150M-RC
Inductance	15 µH
Tolerance	±20%
Current Rating	1.6 A
Current - Saturation (Isat)	1.35 A
DC Resistance (DCR)	62 mOhm Max
Shielding	Shielded
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Size / Dimension	7.00mm x 7.00mm
Height - Seated (Max)	4.80mm
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the PM74SH-150M-RC are qualified based on the following critical parameters:

Inductance value: 15 µH (exact match required)
Inductance tolerance: ±20% (matching specification)
DC resistance: 62 mOhm maximum (equal or lower acceptable)
Shielding: Shielded construction required
Mounting type: Surface mount required
Operating temperature range: Minimum -40°C to 125°C coverage
RoHS3 compliance: Required for regulatory alignment
Moisture sensitivity: MSL 1 acceptable

The SRR7045-150M qualifies as a direct substitute with identical electrical specifications and improved current rating headroom. The P1167.153NLT and P1167.153NL variants from Pulse Electronics meet the core electrical requirements with slightly elevated DC resistance and dimensional variations within acceptable mechanical tolerances.

Parameter Comparison

Parameter	PM74SH-150M-RC	SRR7045-150M	P1167.153NLT	P1167.153NL
Manufacturer	Bourns Inc.	Bourns Inc.	Pulse Electronics	Pulse Electronics
Inductance	15 µH	15 µH	15 µH	15 µH
Tolerance	±20%	±20%	±20%	±20%
Current Rating (Amps)	1.6 A	2.2 A	1.7 A	1.8 A
Current - Saturation (Isat)	1.35 A	1.5 A	1.7 A	1.7 A
DC Resistance (DCR)	62 mOhm Max	62 mOhm Max	66 mOhm Max	66 mOhm Max
Shielding	Shielded	Shielded	Shielded	Shielded
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 130°C	-40°C ~ 130°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Size / Dimension	7.00mm x 7.00mm	7.00mm x 7.00mm	7.54mm x 7.54mm	7.54mm x 7.54mm
Height - Seated (Max)	4.80mm	4.80mm	4.50mm	4.50mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

SRR7045-150M represents the primary substitute option. Both parts are manufactured by Bourns Inc., share identical inductance, tolerance, DC resistance, and physical dimensions. The SRR7045-150M provides enhanced current rating capacity (2.2 A versus 1.6 A) and improved saturation current margin (1.5 A versus 1.35 A), making it suitable for applications requiring additional thermal or current headroom. Both parts maintain ROHS3 compliance and MSL 1 rating.

P1167.153NLT and P1167.153NL from Pulse Electronics are secondary substitutes. These parts maintain the 15 µH inductance specification and shielded construction. The Pulse Electronics variants feature slightly elevated DC resistance (66 mOhm maximum versus 62 mOhm) and larger footprint dimensions (7.54mm x 7.54mm versus 7.00mm x 7.00mm). The P1167.153NLT variant includes tape and reel packaging confirmation, while P1167.153NL packaging is unspecified. Both Pulse Electronics options provide extended operating temperature range to 130°C and higher current ratings (1.7 A and 1.8 A respectively). All substitute parts maintain active production status and full regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can SRR7045-150M be used as a direct replacement for PM74SH-150M-RC?

A: Yes. Both parts share identical inductance (15 µH), tolerance (±20%), DC resistance (62 mOhm maximum), shielding, and physical dimensions (7.00mm x 7.00mm, 4.80mm height). The SRR7045-150M provides higher current rating capacity without compromising electrical performance.

Q: What are the dimensional differences between Bourns and Pulse Electronics substitutes?

A: The PM74SH-150M-RC and SRR7045-150M measure 7.00mm x 7.00mm with 4.80mm maximum seated height. The P1167.153NLT and P1167.153NL measure 7.54mm x 7.54mm with 4.50mm maximum seated height. PCB layout and clearance requirements must account for these footprint variations.

Q: Are the Pulse Electronics parts suitable for high-temperature applications?

A: The P1167.153NLT and P1167.153NL extend the operating temperature range to -40°C to 130°C, compared to -40°C to 125°C for the Bourns parts. This provides an additional 5°C margin at the upper temperature limit.

Q: What is the impact of the 4 mOhm DC resistance difference in Pulse Electronics parts?

A: The P1167.153NLT and P1167.153NL specify 66 mOhm maximum DC resistance versus 62 mOhm for the Bourns parts. This 6.5% increase results in proportionally higher resistive losses. Applications with strict power dissipation budgets should evaluate this parameter against thermal requirements.

Q: Do all substitute parts maintain the same moisture sensitivity rating?

A: Yes. All parts listed carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints for storage, handling, or reflow processing.

Q: Which substitute offers the best current margin for the application?

A: The SRR7045-150M provides the highest current rating at 2.2 A with saturation current of 1.5 A. The P1167.153NL offers 1.8 A rating with 1.7 A saturation current. Selection depends on application current requirements and thermal design constraints.

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