SCRH105RY-330 Equivalent & Substitute Parts

Part Overview

The SCRH105RY-330 is a 33 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 2.48 A continuous current with a maximum DC resistance of 84 mOhm. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductor category.

Key Parameters

Parameter	Value
Inductance	33 µH
Inductance Tolerance	±30%
Current Rating	2.48 A
DC Resistance (DCR)	84 mOhm Max
Shielding	Shielded
Operating Temperature Range	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	Nonstandard
Size / Dimension	0.413" L x 0.406" W (10.50mm x 10.30mm)
Height - Seated (Max)	0.201" (5.10mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SCRH105RY-330 are qualified based on the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

Inductance value: 33 µH with ±30% tolerance
Current rating: minimum 2.48 A
DC resistance: maximum 84 mOhm
Shielding: Shielded construction required
Inductance test frequency: 100 kHz

Mechanical Compatibility Criteria:

Mounting type: Surface Mount
Package classification: Nonstandard
Physical dimensions: 0.413" L x 0.406" W (10.50mm x 10.30mm) footprint
Height seated maximum: 0.201" (5.10mm)

Compliance & Status Criteria:

Product status: Active
RoHS3 compliance required
Moisture sensitivity level: 1 (Unlimited)

The identified substitute parts meet all specified electrical parameters and maintain mechanical compatibility with the original SCRH105RY-330 footprint and mounting requirements.

Parameter Comparison

Parameter	SCRH105RY-330 (Signal Transformer)	CDRH105RNP-330NC (Sumida America)	DR1050-330-R (Eaton)
Inductance	33 µH	33 µH	33 µH
Inductance Tolerance	±30%	±30%	±30%
Current Rating (Amps)	2.48 A	2.5 A	2.56 A
Current - Saturation (Isat)	2.4 A	2.4 A	2.5 A
DC Resistance (DCR)	84 mOhm Max	84 mOhm Max	71.9 mOhm Max
Shielding	Shielded	Shielded	Shielded
Operating Temperature Range	-40°C ~ 125°C	-40°C ~ 100°C	-40°C ~ 125°C
Inductance Frequency - Test	100 kHz	100 kHz	100 kHz
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Size / Dimension	0.413" L x 0.406" W (10.50mm x 10.30mm)	0.402" L x 0.394" W (10.20mm x 10.00mm)	0.413" L x 0.406" W (10.50mm x 10.30mm)
Height - Seated (Max)	0.201" (5.10mm)	0.201" (5.10mm)	0.197" (5.00mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

CDRH105RNP-330NC (Sumida America Components Inc.): This substitute maintains electrical equivalence with current rating of 2.5 A and DC resistance of 84 mOhm maximum. Physical dimensions are slightly reduced (0.402" L x 0.394" W versus 0.413" L x 0.406" W), which may require PCB layout verification for footprint compatibility. Operating temperature range is limited to -40°C ~ 100°C compared to the original -40°C ~ 125°C specification. RoHS3 compliance and MSL 1 rating are maintained. Product status is Active.

DR1050-330-R (Eaton - Electronics Division): This substitute provides superior electrical performance with current rating of 2.56 A and reduced DC resistance of 71.9 mOhm maximum. Physical dimensions and height are identical to the original part (0.413" L x 0.406" W, 0.197" height). Operating temperature range matches the original specification at -40°C ~ 125°C. RoHS3 compliance and MSL 1 rating are maintained. Product status is Active. This part is specified as Drum Core, Wirewound construction with Ferrite core material.

Frequently Asked Questions (FAQ)

Q: Can CDRH105RNP-330NC be used as a direct replacement for SCRH105RY-330?

A: CDRH105RNP-330NC meets the electrical requirements (33 µH, 2.5 A, 84 mOhm DCR). However, the physical dimensions are slightly smaller (0.402" L x 0.394" W versus 0.413" L x 0.406" W), requiring PCB footprint verification. The operating temperature range is reduced to -40°C ~ 100°C, which may be a limiting factor in applications requiring the full -40°C ~ 125°C range.

Q: What are the key differences between DR1050-330-R and SCRH105RY-330?

A: DR1050-330-R offers improved electrical performance with higher current rating (2.56 A versus 2.48 A) and lower DC resistance (71.9 mOhm versus 84 mOhm). Physical dimensions and operating temperature range are identical. The primary difference is construction type: DR1050-330-R is specified as Drum Core, Wirewound with Ferrite core material.

Q: Are all three parts interchangeable on the same PCB?

A: SCRH105RY-330 and DR1050-330-R share identical physical dimensions and can be directly substituted on the same PCB. CDRH105RNP-330NC has slightly reduced dimensions and requires PCB layout verification before substitution.

Q: What compliance certifications are maintained across all three parts?

A: All three parts maintain RoHS3 compliance, MSL 1 (Unlimited) rating, and Active product status. SCRH105RY-330 and DR1050-330-R both carry REACH Unaffected status.

Q: Which substitute part is recommended for high-temperature applications?

A: Both SCRH105RY-330 and DR1050-330-R support the full operating temperature range of -40°C ~ 125°C. CDRH105RNP-330NC is limited to -40°C ~ 100°C and is not suitable for applications requiring operation above 100°C.

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