UP2C-1R0-R Equivalent & Substitute Parts

Part Overview

The UP2C-1R0-R is a 1 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division, rated for 9.8 A continuous current with 3.9 mOhm DC resistance. This component is part of the UNI-PAC™ 2C series and operates across the temperature range of -40°C to 85°C. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

UP2C-1R0-R

Eaton - Electronics DivisionIn Stock: 1163UP2C-1R0-R Datasheet

Current PartRFQ

P0751.102NL

Pulse ElectronicsIn Stock: 698P0751.102NL Datasheet

SimilarRFQ

P0751.102NLT

Pulse ElectronicsIn Stock: 1967P0751.102NLT Datasheet

SimilarRFQ

SC3316FH-1R0

Signal TransformerIn Stock: 1204SC3316FH-1R0 Datasheet

SimilarRFQ

SDR1005-1R0ML

Bourns Inc.In Stock: 2321SDR1005-1R0ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP2C-1R0-R is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 1 µH (exact match required)
• Inductance tolerance: ±20% (acceptable range)
• Shielding configuration: Unshielded (required)
• Mounting type: Surface Mount (required)
• Inductance test frequency: 100 kHz (standard reference)

Secondary Compatibility Criteria:

• Current rating: Substitute must support minimum 9.8 A continuous operation
• DC resistance: Lower DCR values are acceptable; higher values indicate increased losses
• Saturation current: Substitute must support minimum 11.8 A saturation threshold
• Operating temperature: Substitute must cover or exceed -40°C to 85°C range
• Moisture sensitivity: MSL 1 (Unlimited) preferred for equivalent handling

Mechanical Compatibility:

• Package type: Nonstandard surface mount form factor
• Physical dimensions: Approximate alignment within 0.508" L x 0.370" W x 0.205" H envelope

All substitute parts listed maintain the 1 µH inductance specification at 100 kHz test frequency and unshielded wirewound construction, ensuring functional equivalence within the specified electrical operating window.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SDR1005-1R0ML (Bourns Inc.)

The SDR1005-1R0ML is the preferred substitute for the obsolete UP2C-1R0-R. Both components share identical drum core wirewound construction with ferrite core material, matching inductance value of 1 µH at 100 kHz test frequency, and ±20% tolerance specification. The SDR1005-1R0ML maintains active product status with ROHS3 compliance and REACH unaffected certification. Operating temperature range extends to 125°C, exceeding the original -40°C to 85°C specification. Current rating of 7.5 A and saturation current of 9 A are lower than the original 9.8 A and 11.8 A specifications; applications requiring the full original current capacity must evaluate load profiles accordingly. DC resistance of 7 mOhm maximum is higher than the original 3.9 mOhm, resulting in increased power dissipation. Physical dimensions remain within acceptable tolerance of the original form factor.

Secondary Substitute: SC3316FH-1R0 (Signal Transformer)

The SC3316FH-1R0 provides an alternative with higher current rating of 10.5 A and lower DC resistance of 6 mOhm maximum, offering improved performance in high-current applications. Inductance tolerance of ±30% is wider than the original ±20% specification. Operating temperature range of -40°C to 125°C exceeds original requirements. Saturation current of 11 A approaches the original 11.8 A specification. Physical dimensions are slightly larger (0.512" L x 0.394" W x 0.250" H), requiring verification of board layout compatibility. ROHS3 compliance and REACH unaffected certification are provided.

Tertiary Substitutes: P0751.102NL and P0751.102NLT (Pulse Electronics)

Both Pulse Electronics variants (P0751.102NL bulk and P0751.102NLT tape & reel) maintain identical electrical specifications: 1 µH inductance at 100 kHz, ±20% tolerance, and unshielded wirewound construction. Current rating of 6.8 A and saturation current of 9 A are significantly lower than the original specification, limiting application to designs with reduced current requirements. DC resistance of 10 mOhm maximum represents the highest loss among all substitutes. Operating temperature range extends to 130°C. ROHS3 compliance and REACH unaffected certification are provided. The P0751.102NLT variant in tape & reel packaging offers automated assembly compatibility.

Compliance and Certification:

All active substitute parts carry ROHS3 compliance and REACH unaffected certification, meeting current regulatory requirements. The original UP2C-1R0-R carries EAR99 export classification, consistent with all substitute parts.

Frequently Asked Questions (FAQ)

Q: Can the P0751.102NL or P0751.102NLT substitute for the UP2C-1R0-R in all applications?

A: The Pulse Electronics variants maintain the same 1 µH inductance and ±20% tolerance at 100 kHz. However, the current rating of 6.8 A is 31% lower than the original 9.8 A specification. Substitution is valid only for applications where the circuit operates at or below 6.8 A continuous current. Saturation current of 9 A is also lower than the original 11.8 A. Verify actual circuit current requirements before selection.

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

A: The UP2C-1R0-R has 3.9 mOhm DC resistance. Substitute parts range from 6 mOhm (SC3316FH-1R0) to 10 mOhm (P0751 variants). Higher DC resistance increases power dissipation according to P = I²R. For a 9.8 A circuit, the original part dissipates 0.375 W, while the P0751 variant dissipates 0.960 W. Thermal management and circuit efficiency must be re-evaluated for substitutes with higher DCR values.

Q: Are the physical dimensions of substitute parts compatible with the original PCB layout?

A: The UP2C-1R0-R measures 0.508" L x 0.370" W x 0.205" H. Substitute parts have similar but slightly different dimensions: SDR1005-1R0ML (0.500" x 0.394" x 0.197" H), SC3316FH-1R0 (0.512" x 0.394" x 0.250" H), and P0751 variants (0.510" x 0.370" x 0.215" H). The SC3316FH-1R0 is notably taller at 0.250" H. Verify PCB footprint clearances and component height restrictions before substitution.

Q: What is the difference between P0751.102NL and P0751.102NLT?

A: Both parts are electrically identical with 1 µH inductance, ±20% tolerance, 6.8 A current rating, and 10 mOhm maximum DC resistance. The primary difference is packaging: P0751.102NL is supplied in bulk form, while P0751.102NLT is supplied in tape & reel (TR) format. Tape & reel packaging is suitable for automated pick-and-place assembly processes. Select based on manufacturing process requirements.

Q: Why does the SDR1005-1R0ML have a different inductance test frequency (1 kHz vs. 100 kHz)?

A: The SDR1005-1R0ML inductance value of 1 µH is specified at 1 kHz test frequency, while the original UP2C-1R0-R and other substitutes are specified at 100 kHz. Inductance values can vary slightly across frequency ranges due to core material characteristics. Both parts maintain the same nominal 1 µH inductance value; the test frequency difference reflects manufacturer measurement methodology. Functional equivalence is maintained for the specified 1 µH inductance.

Q: Is the SDR1005-1R0ML the best choice for direct replacement?

A: The SDR1005-1R0ML is the preferred substitute due to matching drum core ferrite construction, identical inductance specification at 100 kHz, ±20% tolerance, and active product status with current certifications. However, the 7.5 A current rating is lower than the original 9.8 A. For applications requiring the full original current capacity, the SC3316FH-1R0 with 10.5 A rating is a better choice, accepting the trade-off of wider ±30% tolerance and slightly larger physical dimensions.

Q: What compliance certifications should I verify for my application?

A: All active substitute parts carry ROHS3 compliance and REACH unaffected certification. If your application requires additional certifications (such as automotive qualification, military specifications, or industry-specific standards), contact the respective manufacturers directly, as these certifications are not provided in the standard component data.

Q: Can I use the SC3316FH-1R0 in a space-constrained application?

A: The SC3316FH-1R0 has a maximum seated height of 0.250" (6.35mm), which is 0.045" taller than the original UP2C-1R0-R at 0.205" (5.20mm). If your PCB has height restrictions or component stacking constraints, verify clearance before selection. The SDR1005-1R0ML at 0.197" H or P0751 variants at 0.215" H may be better choices for space-constrained designs.