CDRH74-151MC Equivalent & Substitute Parts

Part Overview

The CDRH74-151MC is a 150 µH shielded surface mount inductor manufactured by Sumida America Components Inc., rated for 460 mA continuous current with a maximum DC resistance of 880 mOhm. This component is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this inductor specification.

Key Parameters

Parameter	Value	Unit
Inductance	150	µH
Inductance Tolerance	±20%	-
Current Rating	460	mA
DC Resistance (DCR) Maximum	880	mOhm
Shielding	Shielded	-
Material - Core	Ferrite	-
Mounting Type	Surface Mount	-
Operating Temperature Range	-40°C to 100°C	-
Package / Case	Nonstandard	-
Size / Dimension	0.287" L x 0.287" W (7.30mm x 7.30mm)	-
Height - Seated (Max)	0.177" (4.50mm)	-
Inductance Frequency - Test	1	kHz
RoHS Status	RoHS non-compliant	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitute parts for the CDRH74-151MC are identified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Critical Matching Parameters:

Inductance value: 150 µH
Inductance tolerance: ±20%
Shielding: Shielded configuration
Mounting type: Surface Mount
Physical footprint compatibility: 7.30mm x 7.30mm base dimensions with 4.50mm seated height
Operating temperature range: Minimum -40°C to 100°C coverage
Current rating: Minimum 460 mA capability
DC resistance: Maximum 880 mOhm specification

Substitution Categories:

Direct Manufacturer Equivalents meet all critical parameters with identical or superior electrical performance and are manufactured by the original supplier or established alternative manufacturers.

Similar Manufacturer Parts satisfy all critical electrical and mechanical parameters but may have minor variations in secondary specifications such as core material type, saturation current, or compliance certifications.

Substitutes are grouped by their ability to fulfill the original design requirements without circuit redesign or board layout modification.

Parameter Comparison

Parameter	CDRH74-151MC	CDRH74NP-151MC-B	P1167.154NLT	SRR0745A-151M
Manufacturer	Sumida America Components Inc.	Sumida America Components Inc.	Pulse Electronics	Bourns Inc.
Product Status	Obsolete	Active	Active	Active
Inductance (µH)	150	150	150	150
Inductance Tolerance	±20%	±20%	±20%	±20%
Current Rating (mA)	460	460	520	480
DC Resistance Maximum (mOhm)	880	880	610	760
Shielding	Shielded	Shielded	Shielded	Shielded
Material - Core	Ferrite	Ferrite	-	Ferrite
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature Range	-40°C to 100°C	-40°C to 100°C	-40°C to 130°C	-40°C to 125°C
Size / Dimension (mm)	7.30 x 7.30	7.30 x 7.30	7.54 x 7.54	7.30 x 7.30
Height - Seated Max (mm)	4.50	4.50	4.50	4.70
Inductance Frequency - Test (kHz)	1	1	100	1
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	-	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

CDRH74NP-151MC-B (Direct Equivalent - Recommended Primary Substitute)

The CDRH74NP-151MC-B is manufactured by Sumida America Components Inc., the original supplier of the CDRH74-151MC. This part maintains identical electrical specifications: 150 µH inductance, 460 mA current rating, and 880 mOhm maximum DC resistance. Physical dimensions and mounting characteristics are identical. The primary distinction is product status: CDRH74NP-151MC-B is active production, whereas CDRH74-151MC is obsolete. CDRH74NP-151MC-B achieves ROHS3 compliance, addressing regulatory requirements. Packaging is provided in Tape & Reel format, supporting automated assembly processes. This part provides direct functional and mechanical compatibility with no design modifications required.

SRR0745A-151M (Similar Equivalent - Secondary Substitute)

The SRR0745A-151M is manufactured by Bourns Inc. and satisfies all critical electrical parameters: 150 µH inductance, ±20% tolerance, shielded ferrite core, and surface mount configuration. Current rating is 480 mA, exceeding the 460 mA requirement. DC resistance is 760 mOhm maximum, which is lower than the 880 mOhm specification, resulting in improved thermal performance. Physical footprint is 7.30mm x 7.30mm, matching the original part. Seated height is 4.70mm, representing a 0.20mm increase from the original 4.50mm specification; board layout verification is required to confirm clearance compatibility. Operating temperature range extends to 125°C. ROHS3 compliance is achieved. AEC-Q200 automotive qualification is provided. This part is suitable for applications where the slightly increased height and enhanced performance characteristics are acceptable.

P1167.154NLT (Alternative Equivalent - Tertiary Substitute)

The P1167.154NLT is manufactured by Pulse Electronics and provides 150 µH inductance with ±20% tolerance in a shielded wirewound configuration. Current rating is 520 mA, exceeding the 460 mA requirement. DC resistance is 610 mOhm maximum, representing a 27% reduction from the original 880 mOhm specification, providing superior thermal efficiency. Physical dimensions are 7.54mm x 7.54mm, representing a 0.24mm increase in length and width from the original 7.30mm x 7.30mm footprint; board layout verification is required. Seated height matches at 4.50mm. Operating temperature range extends to 130°C. Self-resonant frequency is specified at 5.6 MHz. Inductance test frequency is 100 kHz, differing from the 1 kHz standard. ROHS3 compliance and REACH compliance are achieved. This part is suitable for applications where the slightly larger footprint and enhanced current capacity are acceptable.

Frequently Asked Questions (FAQ)

Q: Can CDRH74NP-151MC-B be used as a direct replacement for CDRH74-151MC?

A: Yes. CDRH74NP-151MC-B is a direct functional and mechanical equivalent. Electrical specifications are identical: 150 µH inductance, 460 mA current rating, 880 mOhm maximum DC resistance, and shielded ferrite core construction. Physical dimensions, mounting type, and operating temperature range are identical. The part is manufactured by the original supplier and is in active production status. No circuit redesign or board layout modification is required.

Q: What is the primary difference between CDRH74-151MC and CDRH74NP-151MC-B?

A: The primary difference is product status and compliance. CDRH74-151MC is obsolete and RoHS non-compliant. CDRH74NP-151MC-B is active production and ROHS3 compliant. Electrical and mechanical specifications are identical.

Q: Can SRR0745A-151M be used in place of CDRH74-151MC?

A: SRR0745A-151M satisfies all critical electrical parameters and is mechanically compatible with one exception: seated height is 4.70mm versus 4.50mm for the original part. Board layout clearance must be verified to confirm the 0.20mm height increase does not create interference. Current rating is 480 mA, exceeding the 460 mA requirement. DC resistance is 760 mOhm, lower than the 880 mOhm specification. If clearance is confirmed, this part is suitable.

Q: What are the implications of using P1167.154NLT as a substitute?

A: P1167.154NLT meets all electrical requirements with enhanced performance: 520 mA current rating and 610 mOhm DC resistance. Physical footprint is 7.54mm x 7.54mm, representing a 0.24mm increase in length and width from the original 7.30mm x 7.30mm. Board layout verification is required to confirm the footprint increase does not create routing conflicts or spacing violations. Seated height is identical at 4.50mm. Inductance test frequency is 100 kHz rather than 1 kHz; this difference reflects measurement methodology and does not affect circuit performance.

Q: Are all substitute parts available in Tape & Reel packaging?

A: CDRH74NP-151MC-B, P1167.154NLT, and SRR0745A-151M are all available in Tape & Reel (TR) packaging, supporting automated assembly processes. The original CDRH74-151MC packaging format is not specified in the available data.

Q: Do all substitute parts meet RoHS compliance requirements?

A: CDRH74NP-151MC-B, P1167.154NLT, and SRR0745A-151M all achieve ROHS3 compliance. The original CDRH74-151MC is RoHS non-compliant. If RoHS compliance is a design requirement, any of the three substitute parts satisfy this criterion.

Q: What is the significance of the different inductance test frequencies?

A: CDRH74-151MC, CDRH74NP-151MC-B, and SRR0745A-151M are tested at 1 kHz. P1167.154NLT is tested at 100 kHz. These differences reflect manufacturer measurement methodology and do not affect circuit performance. Inductance value remains 150 µH across all parts within the specified ±20% tolerance.

Q: Can height differences between substitute parts affect board design?

A: Yes. SRR0745A-151M has a seated height of 4.70mm versus 4.50mm for the original part, representing a 0.20mm increase. P1167.154NLT maintains 4.50mm seated height. If the design has height-constrained clearance requirements, SRR0745A-151M requires verification. P1167.154NLT and CDRH74NP-151MC-B present no height-related compatibility issues.

Q: Which substitute part offers the lowest DC resistance?

A: P1167.154NLT offers the lowest DC resistance at 610 mOhm maximum, compared to 880 mOhm for the original part and 760 mOhm for SRR0745A-151M. Lower DC resistance reduces power dissipation and thermal generation, improving efficiency. This characteristic makes P1167.154NLT suitable for applications where thermal performance is a priority.

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