UP2C-6R8-R Equivalent & Substitute Parts Reference

Part Overview

The UP2C-6R8-R is a 6.8 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division, part of the UNI-PAC™ 2C series. This component is rated for 4.42 A continuous current with an 18mOhm DC resistance and operates across the temperature range of -40°C to 85°C. The part is currently obsolete, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and ensure supply chain availability.

Substiute Parts

UP2C-6R8-R

Eaton - Electronics DivisionIn Stock: 1060UP2C-6R8-R Datasheet

Current PartRFQ

B82476B1682M100

EPCOS - TDK ElectronicsIn Stock: 1219B82476B1682M100 Datasheet

DirectRFQ

P0751.682NLT

Pulse ElectronicsIn Stock: 3864P0751.682NLT Datasheet

DirectRFQ

SDR1005-6R8ML

Bourns Inc.In Stock: 3128SDR1005-6R8ML Datasheet

DirectRFQ

P0751.682NL

Pulse ElectronicsIn Stock: 837P0751.682NL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UP2C-6R8-R is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 6.8 µH (±20% tolerance)
• Inductance test frequency: 100 kHz
• Mounting type: Surface Mount
• Core type: Ferrite drum core wirewound construction
• Shielding: Unshielded configuration

Secondary Compatibility Criteria:

• Current rating: minimum 4.42 A (substitute must equal or exceed this value)
• DC resistance: maximum 18mOhm (lower values acceptable; higher values require thermal analysis)
• Saturation current (Isat): minimum 4.82 A
• Operating temperature range: must encompass or exceed -40°C to 85°C
• Package dimensions: physical footprint compatibility within nonstandard SMD envelope
• Moisture sensitivity: MSL 1 (Unlimited)

Substitute parts are classified as Direct Equivalents when all primary and secondary criteria are met within specified tolerances. Similar Parts are identified when inductance and core specifications match but secondary parameters show minor deviations requiring application-level verification.

Parameter Comparison

Engineering Selection Recommendations

B82476B1682M100 (EPCOS - TDK Electronics)

This part is the primary direct equivalent. It matches the 6.8 µH inductance, ±20% tolerance, and unshielded ferrite drum core wirewound construction. The current rating of 4.8 A exceeds the original 4.42 A requirement. DC resistance of 21mOhm is marginally higher than the original 18mOhm but remains within acceptable limits for most applications. The extended operating temperature range (-55°C to 150°C) provides superior thermal coverage. AEC-Q200 qualification and ROHS3 compliance ensure automotive and environmental standards compliance. Active product status guarantees long-term availability.

P0751.682NLT (Pulse Electronics)

This part provides functional equivalence with matching 6.8 µH inductance and ±20% tolerance. Current rating of 4.4 A meets the original specification. However, DC resistance of 44mOhm is significantly higher than the original 18mOhm, resulting in increased power dissipation. This part is suitable only for applications where thermal performance is not critical or where the higher DCR can be accommodated by design margins. Active product status and ROHS3 compliance are confirmed. Tape & Reel packaging is available.

SDR1005-6R8ML (Bourns Inc.)

This part exhibits reduced current rating of 3.4 A, which falls below the original 4.42 A specification. While inductance and core material match, the lower current rating restricts its use to applications with reduced current demands. DC resistance of 30mOhm is higher than the original specification. The inductance test frequency of 1 kHz differs from the original 100 kHz, potentially affecting frequency-dependent performance characteristics. Active product status and ROHS3 compliance are confirmed.

P0751.682NL (Pulse Electronics)

This part is functionally identical to P0751.682NLT with the same electrical specifications. The primary difference is packaging format (bulk versus Tape & Reel). DC resistance of 44mOhm remains the limiting factor for thermal-sensitive applications. Active product status and ROHS3 compliance are confirmed.

Frequently Asked Questions (FAQ)

Q: Can B82476B1682M100 be used as a direct replacement for UP2C-6R8-R?

A: Yes. B82476B1682M100 meets all primary and secondary matching criteria. The 4.8 A current rating exceeds the original 4.42 A requirement, and the 21mOhm DC resistance is within acceptable tolerance of the original 18mOhm specification. Extended operating temperature range provides additional design margin.

Q: Why is the DC resistance specification important for substitution?

A: DC resistance directly affects power dissipation and thermal performance. Higher DCR values generate more heat at the same current level. The original UP2C-6R8-R specifies 18mOhm. Substitutes with significantly higher DCR (such as P0751.682NLT at 44mOhm) may require thermal analysis to confirm acceptable operating conditions in the target application.

Q: What is the significance of the inductance test frequency difference between SDR1005-6R8ML (1 kHz) and the original part (100 kHz)?

A: Inductance values can vary with measurement frequency due to core material properties. The original UP2C-6R8-R is specified at 100 kHz, which is the standard test frequency for this component category. SDR1005-6R8ML is tested at 1 kHz, potentially resulting in different inductance behavior at circuit operating frequencies. This difference requires application-level verification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All active substitute parts (B82476B1682M100, P0751.682NLT, SDR1005-6R8ML, and P0751.682NL) are confirmed ROHS3 compliant. The original UP2C-6R8-R compliance status is not specified in available documentation.

Q: What is the difference between P0751.682NLT and P0751.682NL?

A: Both parts are electrically identical with 6.8 µH inductance, 4.4 A current rating, and 44mOhm DC resistance. The primary difference is packaging: P0751.682NLT is supplied in Tape & Reel format, while P0751.682NL is supplied in bulk packaging. Selection depends on assembly process requirements and volume considerations.

Q: Can SDR1005-6R8ML be used in applications requiring 4.42 A continuous current?

A: No. SDR1005-6R8ML is rated for 3.4 A continuous current, which is below the original 4.42 A specification. Using this part in applications requiring the full 4.42 A would exceed its current rating and risk component failure or performance degradation.

Q: What is the moisture sensitivity level (MSL) and why is it relevant?

A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and does not require special moisture control during storage or handling. All listed parts, including the original UP2C-6R8-R, carry MSL 1 rating, ensuring compatibility with standard manufacturing and storage practices.

Q: Are there any automotive qualifications for these substitute parts?

A: B82476B1682M100 carries AEC-Q200 qualification, indicating suitability for automotive applications. Other substitute parts do not list automotive qualifications in the provided specifications. Applications requiring automotive-grade components should prioritize B82476B1682M100.