SCPS9050-R12 Equivalent & Substitute Parts

Part Overview

The SCPS9050-R12 is a 120 nH shielded inductor manufactured by Signal Transformer, rated for 28 A continuous current with a maximum DC resistance of 350 mOhm. This surface mount component is designed for high-current applications requiring electromagnetic shielding in a nonstandard package footprint of 7.20mm × 6.70mm.

The SCPS9050-R12 is classified as obsolete. Identifying qualified substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this inductor specification.

Substiute Parts

SCPS9050-R12

Signal TransformerIn Stock: 817SCPS9050-R12 Datasheet

Current PartRFQ

PA5041.121HLT

Pulse ElectronicsIn Stock: 1139PA5041.121HLT Datasheet

MFR RecommendedRFQ

VLB10050HT-R12M

TDK CorporationIn Stock: 1957VLB10050HT-R12M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCPS9050-R12 are qualified based on the following electrical and mechanical parameters:

Primary Matching Criteria:

• Inductance value: 120 nH (exact match required)
• Inductance tolerance: ±10% to ±20% acceptable
• Current rating: minimum 28 A continuous
• Saturation current (Isat): minimum 42 A
• DC resistance: ≤350 mOhm
• Operating temperature range: minimum -40°C to 125°C coverage
• Mounting type: Surface Mount
• Package footprint: 7.20mm × 6.70mm length and width
• Compliance: ROHS3 Compliant, REACH Unaffected

Acceptable Variations:

• Shielding type: Shielded or unshielded (application-dependent)
• Height: Variations permitted if PCB layout accommodates
• Inductance test frequency: 100 kHz or 1 MHz acceptable

Two substitute parts meet these criteria with documented electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

PA5041.121HLT (Pulse Electronics) - Primary Substitute

The PA5041.121HLT is the preferred substitute for the SCPS9050-R12. This part maintains identical inductance (120 nH) and package footprint (7.20mm × 6.70mm length and width), with superior electrical performance. The 40 A current rating and 75 A saturation current exceed the original specification, providing design margin. DC resistance of 0.29 mOhm is significantly lower than the 350 mOhm maximum of the original part. Shielding is maintained. The part is active in production with ROHS3 compliance and unlimited moisture sensitivity rating. The extended operating temperature range (-40°C to 130°C) provides additional thermal margin. Height of 11.20 mm requires PCB layout verification for clearance compatibility.

VLB10050HT-R12M (TDK Corporation) - Secondary Substitute

The VLB10050HT-R12M qualifies as a secondary substitute with identical inductance (120 nH) and matching operating temperature range (-40°C to 125°C). Current rating of 31 A and saturation current of 68 A exceed the original 28 A and 42 A specifications. DC resistance of 0.35 mOhm maximum is comparable to the original specification. The part is active in production with ROHS3 compliance. This inductor is unshielded, which may affect electromagnetic compatibility in shielding-critical applications. Package length is 9.80 mm, exceeding the original 7.20 mm footprint and requiring PCB layout verification. Height of 5.00 mm is compatible with the original 5.20 mm maximum.

Both substitutes are active products with full compliance certifications, ensuring long-term supply chain availability compared to the obsolete SCPS9050-R12.

Frequently Asked Questions (FAQ)

Q: Can PA5041.121HLT be used as a direct replacement for SCPS9050-R12?

A: PA5041.121HLT meets all electrical specifications and maintains the same footprint length and width (7.20mm × 6.70mm). However, the height increases from 5.20 mm to 11.20 mm. PCB layout verification is required to confirm vertical clearance compatibility before implementation.

Q: What is the primary difference between the two substitute parts?

A: PA5041.121HLT is shielded with superior DC resistance (0.29 mOhm) and higher current ratings. VLB10050HT-R12M is unshielded with a larger length dimension (9.80 mm vs. 7.20 mm). Selection depends on shielding requirements and available PCB space.

Q: Is shielding important for my application?

A: Shielding reduces electromagnetic interference emission and susceptibility. If the original design specified shielding, PA5041.121HLT maintains this characteristic. VLB10050HT-R12M, being unshielded, may not be suitable for EMI-sensitive applications without additional circuit-level mitigation.

Q: Do the substitute parts have the same inductance tolerance?

A: PA5041.121HLT has ±10% tolerance, which is tighter than the original ±20%. VLB10050HT-R12M maintains ±20% tolerance matching the original specification. Tighter tolerance may provide improved circuit performance in applications sensitive to inductance variation.

Q: Are both substitutes available in the same packaging format?

A: Both substitutes are supplied in Tape & Reel (TR) packaging, suitable for automated assembly. The original SCPS9050-R12 packaging format is not specified in the available data.

Q: What is the impact of lower DC resistance in the substitute parts?

A: Lower DC resistance reduces resistive losses and heat generation during operation. PA5041.121HLT at 0.29 mOhm and VLB10050HT-R12M at 0.35 mOhm both represent improvements over the original 350 mOhm specification, resulting in improved efficiency and reduced thermal stress.

Q: Can I use VLB10050HT-R12M in a design requiring shielding?

A: VLB10050HT-R12M is unshielded. Use in shielding-critical applications requires evaluation of electromagnetic compatibility impact. If shielding is mandatory, PA5041.121HLT is the appropriate selection.

Q: What are the compliance certifications for the substitute parts?

A: Both PA5041.121HLT and VLB10050HT-R12M are ROHS3 compliant, REACH unaffected, with moisture sensitivity level 1 (unlimited). Both meet the compliance requirements of the original SCPS9050-R12.