CDRH127-330MC Equivalent & Substitute Parts

Part Overview

The CDRH127-330MC is a 33 µH shielded inductor manufactured by Sumida America Components Inc., rated for 3 A continuous current with a maximum DC resistance of 64.8 mOhm. This component is designed for surface mount applications in a nonstandard 12.00mm × 12.00mm package with 8.00mm seated height. The part is currently classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value	Unit
Inductance	33	µH
Inductance Tolerance	±20%	—
Current Rating	3	A
DC Resistance (DCR)	64.8	mOhm Max
Shielding	Shielded	—
Operating Temperature Range	-40°C to 100°C	—
Mounting Type	Surface Mount	—
Package Dimensions	12.00mm × 12.00mm × 8.00mm	L × W × H
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the CDRH127-330MC are classified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Critical Parameters (Must Match):

Inductance: 33 µH
Inductance Tolerance: ±20%
Current Rating: 3 A minimum
DC Resistance: 64.8 mOhm maximum
Shielding: Shielded configuration
Mounting Type: Surface Mount
Package Dimensions: 12.00mm × 12.00mm footprint with 8.00mm maximum seated height
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations:

Operating temperature range may extend beyond the original specification
Inductance test frequency may differ (1 kHz or 100 kHz)
Core material type (ferrite or unspecified) does not restrict substitution
Packaging format (Cut Tape, Digi-Reel, or Tape & Reel) is application-dependent
RoHS and REACH compliance status may differ

The following parts meet these criteria and are classified as direct or similar substitutes.

Parameter Comparison

Parameter	CDRH127-330MC	CDRH127NP-330MC	P1173.333NLT	DR127-330-R	P1172.333NLT	SPD127R-333M
Manufacturer	Sumida	Sumida	Pulse Electronics	Eaton	Pulse Electronics	API Delevan
Inductance (µH)	33	33	33	33	33	33
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
Current Rating (A)	3	3	3	3.23	3	3
DCR (mOhm Max)	64.8	64.8	64.8	60	64.8	65
Shielding	Shielded	Shielded	Shielded	Shielded	Shielded	Shielded
Operating Temp (°C)	-40 to 100	-40 to 100	-40 to 130	-40 to 125	-40 to 130	-55 to 125
Package Dimensions (mm)	12.00 × 12.00	12.00 × 12.00	12.24 × 12.24	12.50 × 12.50	12.24 × 12.24	12.00 × 12.00
Height (mm Max)	8.00	8.00	8.00	8.00	8.00	8.00
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1	1	1	1	1	1

Engineering Selection Recommendations

Direct Equivalent (Preferred Primary Substitute):

CDRH127NP-330MC is the direct equivalent from the same manufacturer (Sumida America Components Inc.). This part maintains identical electrical specifications (33 µH, 3 A, 64.8 mOhm DCR) and mechanical dimensions (12.00mm × 12.00mm × 8.00mm). The primary distinction is product status: CDRH127NP-330MC is active with 427,200 units in stock, compared to the obsolete CDRH127-330MC. CDRH127NP-330MC is ROHS3 compliant and REACH affected, providing regulatory compliance for new designs. Packaging is available in Cut Tape and Digi-Reel formats.

Secondary Substitutes (Cross-Manufacturer):

P1173.333NLT (Pulse Electronics) and P1172.333NLT (Pulse Electronics) are wirewound shielded inductors meeting all critical electrical parameters. Both maintain 33 µH inductance, 3 A current rating, and 64.8 mOhm maximum DCR. Operating temperature extends to 130°C, exceeding the original specification. Package dimensions are 12.24mm × 12.24mm, representing a 0.24mm increase in length and width; seated height remains 8.00mm. Both are ROHS3 compliant. P1173.333NLT is available in Tape & Reel (1,528 units in stock); P1172.333NLT is available in Cut Tape & Digi-Reel (2,701 units in stock).

Alternative Substitutes (Acceptable with Minor Parameter Variations):

DR127-330-R (Eaton - Electronics Division) is a drum core wirewound inductor with ferrite core material. Electrical specifications are closely aligned: 33 µH inductance, 3.23 A current rating (exceeds 3 A requirement), and 60 mOhm DCR (lower than 64.8 mOhm maximum). Package dimensions are 12.50mm × 12.50mm with 8.00mm seated height, representing a 0.50mm increase in footprint. Operating temperature range is -40°C to 125°C. ROHS3 compliant with 1,452 units in stock.

SPD127R-333M (API Delevan Inc.) is a drum core wirewound inductor with ferrite core material. Electrical specifications match: 33 µH inductance, 3 A current rating, and 65 mOhm maximum DCR. Package dimensions are 12.00mm × 12.00mm with 8.00mm seated height, matching the original footprint exactly. Operating temperature range extends to -55°C to 125°C. ROHS3 compliant with 1,151 units in stock.

Selection Criteria by Application:

Footprint-Critical Applications: Select CDRH127NP-330MC, SPD127R-333M, or CDRH127-330MC substitutes maintaining 12.00mm × 12.00mm dimensions.
Extended Temperature Requirements: Select P1173.333NLT or P1172.333NLT (130°C maximum) or SPD127R-333M (-55°C minimum).
Regulatory Compliance: All active substitutes are ROHS3 compliant; CDRH127NP-330MC is REACH affected.
Packaging Format Requirements: Verify availability in required format (Cut Tape, Digi-Reel, or Tape & Reel).

Frequently Asked Questions (FAQ)

Q: Can CDRH127NP-330MC directly replace CDRH127-330MC without circuit modification?

A: Yes. CDRH127NP-330MC is the direct equivalent with identical electrical specifications (33 µH, ±20% tolerance, 3 A, 64.8 mOhm DCR) and mechanical dimensions (12.00mm × 12.00mm × 8.00mm). No circuit modification is required.

Q: What is the primary reason for substituting CDRH127-330MC?

A: CDRH127-330MC is classified as obsolete. CDRH127NP-330MC is the active equivalent with 427,200 units in stock, ensuring supply continuity for production and repair applications.

Q: Are Pulse Electronics P1173.333NLT and P1172.333NLT interchangeable with CDRH127-330MC?

A: Both parts meet all critical electrical parameters (33 µH, 3 A, 64.8 mOhm DCR, shielded, surface mount). Package dimensions are 12.24mm × 12.24mm, representing a 0.24mm increase in length and width compared to the original 12.00mm × 12.00mm. Seated height remains 8.00mm. Substitution is acceptable if PCB layout accommodates the slightly larger footprint.

Q: What is the difference between DR127-330-R and SPD127R-333M?

A: Both are drum core wirewound inductors with ferrite cores. DR127-330-R has a 3.23 A current rating and 60 mOhm DCR with a 12.50mm × 12.50mm footprint. SPD127R-333M has a 3 A current rating and 65 mOhm DCR with a 12.00mm × 12.00mm footprint matching the original. SPD127R-333M is preferred for footprint-critical applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts (CDRH127NP-330MC, P1173.333NLT, P1172.333NLT, DR127-330-R, SPD127R-333M) are ROHS3 compliant. The original CDRH127-330MC is RoHS non-compliant.

Q: What is the maximum operating temperature for each substitute?

A: CDRH127NP-330MC: 100°C; P1173.333NLT and P1172.333NLT: 130°C; DR127-330-R: 125°C; SPD127R-333M: 125°C. Select based on application thermal requirements.

Q: Can I use parts with different package dimensions?

A: Package dimension compatibility depends on PCB layout constraints. CDRH127NP-330MC and SPD127R-333M maintain the original 12.00mm × 12.00mm footprint. P1173.333NLT and P1172.333NLT are 12.24mm × 12.24mm. DR127-330-R is 12.50mm × 12.50mm. All maintain 8.00mm seated height. Verify PCB clearance before substitution.

Q: What packaging formats are available for each substitute?

A: CDRH127NP-330MC: Cut Tape and Digi-Reel; P1173.333NLT: Tape & Reel; P1172.333NLT: Cut Tape and Digi-Reel; DR127-330-R: Tape & Reel; SPD127R-333M: Tape & Reel. Select based on assembly process requirements.

Q: Is REACH compliance a factor in part selection?

A: CDRH127NP-330MC is REACH affected. All other substitutes (P1173.333NLT, P1172.333NLT, DR127-330-R, SPD127R-333M) are REACH unaffected. Verify regulatory requirements for your application and target market.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message