CDRH74-270MC Equivalent & Substitute Parts

Part Overview

The CDRH74-270MC is a 27 µH shielded inductor manufactured by Sumida America Components Inc., rated for 1.12 A maximum current with 150mOhm DC resistance. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design support and procurement continuity. Substitute parts must maintain electrical performance within the specified inductance, current rating, and DC resistance parameters while meeting modern compliance standards.

Substiute Parts

CDRH74-270MC

Sumida America Components Inc.In Stock: 2436CDRH74-270MC Datasheet

Current PartRFQ

CDRH74NP-270MC-B

Sumida America Components Inc.In Stock: 943CDRH74NP-270MC-B Datasheet

DirectRFQ

P1167.273NLT

Pulse ElectronicsIn Stock: 3735P1167.273NLT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDRH74-270MC are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value of 27 µH with ±20% tolerance
• Current rating minimum of 1.12 A
• DC resistance maximum of 150mOhm
• Shielded construction
• Surface mount package type
• Physical dimensions compatible with 7.30mm x 7.30mm footprint and 4.50mm maximum height

Secondary Compatibility Factors:

• Operating temperature range of at least -30°C to 100°C
• Moisture sensitivity level MSL 1 (Unlimited)
• Nonstandard package classification

The CDRH74NP-270MC-B from Sumida America Components Inc. is a direct electrical equivalent with identical specifications and active product status. The P1167.273NLT from Pulse Electronics meets all critical electrical parameters with slightly improved current rating (1.2 A) and lower DC resistance (130mOhm), offering enhanced performance margins within the same physical envelope.

Parameter Comparison

Engineering Selection Recommendations

CDRH74NP-270MC-B Selection Criteria: This part is the primary substitute for CDRH74-270MC. It maintains identical electrical specifications (27 µH, 1.12 A, 150mOhm DCR) and physical dimensions (7.30mm x 7.30mm x 4.50mm). The CDRH74NP-270MC-B carries active product status and ROHS3 compliance, eliminating obsolescence risk. The extended operating temperature range (-40°C to 100°C) provides additional thermal margin. This substitute is recommended for direct replacement in existing designs without circuit modification.

P1167.273NLT Selection Criteria: This Pulse Electronics part qualifies as a functional substitute with enhanced electrical performance. The 1.2 A current rating and 130mOhm maximum DCR provide improved performance margins over the original specification. The extended operating temperature range (-40°C to 130°C) and higher self-resonant frequency (15MHz) support broader application requirements. Physical dimensions (7.54mm x 7.54mm) represent a minor footprint increase; PCB layout verification is required. ROHS3 compliance and active product status ensure long-term availability. This substitute is suitable for new designs or redesigns where the slightly larger footprint is accommodated.

Compliance Considerations: Both substitute parts carry ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements. The original CDRH74-270MC is RoHS non-compliant; substitution with either active part resolves compliance obligations for new procurement.

Frequently Asked Questions (FAQ)

Q: Can CDRH74NP-270MC-B directly replace CDRH74-270MC without circuit changes? A: Yes. The CDRH74NP-270MC-B maintains identical inductance (27 µH ±20%), current rating (1.12 A), DC resistance (150mOhm max), and physical dimensions (7.30mm x 7.30mm x 4.50mm). No circuit modification is required.

Q: What is the primary difference between CDRH74NP-270MC-B and P1167.273NLT? A: Both parts meet the 27 µH inductance and shielded surface mount requirements. The P1167.273NLT offers higher current rating (1.2 A vs 1.12 A) and lower DC resistance (130mOhm vs 150mOhm). The P1167.273NLT footprint is slightly larger (7.54mm x 7.54mm vs 7.30mm x 7.30mm), requiring PCB layout verification.

Q: Are both substitute parts available in Tape & Reel packaging? A: Yes. Both CDRH74NP-270MC-B and P1167.273NLT are supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.

Q: What is the moisture sensitivity level for these inductors? A: All three parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.

Q: Does the P1167.273NLT require PCB layout changes? A: The P1167.273NLT footprint (7.54mm x 7.54mm) is 0.24mm larger in each dimension compared to the original (7.30mm x 7.30mm). PCB layout verification is necessary to confirm clearance and placement compatibility.

Q: Are both substitute parts RoHS compliant? A: Yes. Both CDRH74NP-270MC-B and P1167.273NLT carry ROHS3 compliance certification, meeting current regulatory requirements. The original CDRH74-270MC is RoHS non-compliant.

Q: What is the operating temperature range difference? A: CDRH74-270MC operates -30°C to 100°C. CDRH74NP-270MC-B operates -40°C to 100°C. P1167.273NLT operates -40°C to 130°C. Both substitutes provide extended lower temperature operation; P1167.273NLT additionally extends upper temperature capability.