CDRH74-680MC Equivalent & Substitute Parts

Part Overview

The CDRH74-680MC is a 68 µH shielded surface mount inductor manufactured by Sumida America Components Inc., rated for 690 mA continuous current with a maximum DC resistance of 380 mOhm. This component is classified as obsolete, necessitating identification of equivalent alternatives for ongoing production and maintenance applications. Substitute parts must maintain electrical performance within the specified inductance, current rating, and DC resistance parameters while meeting modern compliance requirements.

Substiute Parts

CDRH74-680MC

Sumida America Components Inc.In Stock: 26061CDRH74-680MC Datasheet

Current PartRFQ

CDRH74NP-680MC-B

Sumida America Components Inc.In Stock: 16529CDRH74NP-680MC-B Datasheet

DirectRFQ

DR74-680-R

Eaton - Electronics DivisionIn Stock: 2277DR74-680-R Datasheet

SimilarRFQ

P1167.683NLT

Pulse ElectronicsIn Stock: 12167P1167.683NLT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDRH74-680MC is determined by the following critical parameters:

Primary Electrical Criteria:

• Inductance value: 68 µH (±20% tolerance acceptable)
• Current rating: minimum 690 mA continuous
• DC resistance: maximum 380 mOhm
• Shielding: required (shielded configuration)

Secondary Compatibility Criteria:

• Mounting type: Surface Mount
• Package footprint: compatible with 7.30mm x 7.30mm nominal dimensions
• Operating temperature: minimum -40°C ~ 100°C range
• Moisture sensitivity: MSL 1 classification

Parts are classified as direct equivalents when all primary electrical criteria and secondary compatibility criteria are met. Parts are classified as similar alternatives when electrical performance exceeds minimum requirements or when minor dimensional variations exist within acceptable assembly tolerances.

Parameter Comparison

Engineering Selection Recommendations

CDRH74NP-680MC-B (Direct Equivalent - Recommended Primary Substitute)

The CDRH74NP-680MC-B is the preferred substitute for the obsolete CDRH74-680MC. Both parts are manufactured by Sumida America Components Inc. and share identical electrical specifications: 68 µH inductance, 690 mA current rating, and 380 mOhm maximum DC resistance. The CDRH74NP-680MC-B maintains the same package footprint (7.30mm x 7.30mm x 4.50mm) and operating temperature range (-40°C ~ 100°C). The primary distinction is product status: CDRH74NP-680MC-B is active with ROHS3 compliance, whereas the original part is obsolete and RoHS non-compliant. Packaging is supplied in Tape & Reel format with 16,446 units in stock.

DR74-680-R (Similar Alternative - Higher Performance)

The DR74-680-R from Eaton Electronics Division meets all primary electrical criteria with superior performance characteristics. It provides 1.03 A current rating (49% higher than the 690 mA requirement) and reduced DC resistance of 265 mOhm (30% lower than the 380 mOhm maximum). The part maintains 68 µH inductance with ±20% tolerance and shielded ferrite core construction. Operating temperature range extends to -40°C ~ 125°C. Package dimensions are 7.60mm x 7.60mm x 4.35mm, representing a minor footprint increase within typical assembly tolerances. ROHS3 compliance is confirmed. This part is suitable for applications requiring enhanced thermal performance or higher current headroom.

P1167.683NLT (Similar Alternative - Balanced Performance)

The P1167.683NLT from Pulse Electronics provides 68 µH inductance with 780 mA current rating (13% above requirement) and 310 mOhm maximum DC resistance (18% below maximum). Shielded wirewound construction with ferrite core is confirmed. Operating temperature range is -40°C ~ 130°C. Package dimensions are 7.54mm x 7.54mm x 4.50mm, representing minimal footprint variation. ROHS3 compliance is confirmed. This part offers balanced performance improvement with minimal dimensional deviation from the original specification.

Frequently Asked Questions (FAQ)

Q: Can CDRH74NP-680MC-B be used as a direct replacement for CDRH74-680MC in existing designs?

A: Yes. The CDRH74NP-680MC-B is electrically and mechanically identical to the CDRH74-680MC. Both parts specify 68 µH inductance, 690 mA current rating, 380 mOhm maximum DC resistance, and identical package dimensions (7.30mm x 7.30mm x 4.50mm). The primary difference is product status and compliance: CDRH74NP-680MC-B is active and ROHS3 compliant, while CDRH74-680MC is obsolete and RoHS non-compliant. No circuit redesign is required.

Q: What are the key differences between the substitute parts?

A: All substitute parts maintain the 68 µH inductance specification. CDRH74NP-680MC-B matches the original 690 mA current rating exactly. DR74-680-R and P1167.683NLT provide higher current ratings (1.03 A and 780 mA respectively) with lower DC resistance values. Operating temperature ranges vary: CDRH74NP-680MC-B matches the original -40°C ~ 100°C range, while DR74-680-R and P1167.683NLT extend to -40°C ~ 125°C and -40°C ~ 130°C respectively. Package dimensions show minor variations within assembly tolerance ranges.

Q: Are there packaging format differences between the main part and substitutes?

A: Yes. The CDRH74-680MC is supplied in bulk packaging, while all substitute parts (CDRH74NP-680MC-B, DR74-680-R, and P1167.683NLT) are supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated assembly processes and provides improved handling and traceability compared to bulk packaging.

Q: Which substitute part should be selected for new designs?

A: For new designs, CDRH74NP-680MC-B is the recommended choice as it provides exact electrical and mechanical compatibility with the original specification while offering active product status and modern compliance certifications. DR74-680-R and P1167.683NLT are suitable alternatives if enhanced thermal performance or higher current capacity is required by the application.

Q: Do all substitute parts meet RoHS compliance requirements?

A: Yes. CDRH74NP-680MC-B, DR74-680-R, and P1167.683NLT are all ROHS3 compliant. The original CDRH74-680MC is RoHS non-compliant. For applications requiring RoHS compliance, any of the three substitute parts are acceptable.

Q: What is the significance of the ±20% inductance tolerance?

A: The ±20% inductance tolerance indicates that the actual inductance value may vary between 54.4 µH and 81.6 µH from the nominal 68 µH specification. All substitute parts maintain this same tolerance specification, ensuring equivalent performance variation characteristics. Circuit designs must account for this tolerance range in their inductance calculations.

Q: Are there any frequency-dependent performance differences?

A: The CDRH74-680MC and CDRH74NP-680MC-B specify inductance measurement at 1 kHz. DR74-680-R and P1167.683NLT specify measurement at 100 kHz. P1167.683NLT additionally specifies a self-resonant frequency of 8.8 MHz. These differences reflect different measurement methodologies and core construction approaches but do not affect substitution eligibility for the specified DC inductance value.