UP2SC-680-R Equivalent & Substitute Parts Reference

Part Overview

The UP2SC-680-R is a 68 µH shielded wirewound inductor manufactured by Eaton - Electronics Division, part of the UNI-PAC™ 2SC series. This surface mount component is rated for 820 mA continuous current with a maximum DC resistance of 340 mOhm and operates across the temperature range of -25°C to 85°C. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support, production continuity, and system maintenance.

Substiute Parts

UP2SC-680-R

Eaton - Electronics DivisionIn Stock: 912UP2SC-680-R Datasheet

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DR1040-680-R

Eaton - Electronics DivisionIn Stock: 4042DR1040-680-R Datasheet

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SRR1005-680Y

Bourns Inc.In Stock: 2081SRR1005-680Y Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute components for the UP2SC-680-R are identified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Core Electrical Parameters:

• Inductance value: 68 µH (exact match required)
• Inductance tolerance: ±15% or tighter
• Current rating: minimum 820 mA continuous
• DC resistance: maximum 340 mOhm
• Saturation current: minimum 1.39 A

Core Mechanical Parameters:

• Mounting type: Surface Mount (required)
• Shielding: Shielded (required)
• Physical footprint compatibility: 12.70 x 10.00 mm length and width
• Height: 5.20 mm maximum seated height
• Moisture sensitivity: MSL 1 (Unlimited)

Compliance Parameters:

• ECCN: EAR99
• HTSUS: 8504.50.4000

Two substitute parts meet these criteria:

SRR1005-680Y (Bourns Inc.): Matches all critical electrical parameters with identical inductance, tolerance, current rating, and DCR. Physical dimensions and height are identical. Operating temperature range is extended (-40°C to 125°C). Product status is active with RoHS3 compliance.

DR1040-680-R (Eaton - Electronics Division): Meets inductance and shielding requirements with higher current rating (1.42 A) and lower DCR (183 mOhm). Tolerance is wider (±30%). Physical dimensions differ slightly (10.50 x 10.30 mm) with reduced height (4.00 mm). Product status is active with RoHS3 compliance and extended operating temperature range (-40°C to 125°C).

Parameter Comparison

Engineering Selection Recommendations

SRR1005-680Y Selection Criteria:

The SRR1005-680Y from Bourns Inc. provides the closest electrical and mechanical equivalence to the obsolete UP2SC-680-R. This substitute maintains identical inductance (68 µH), inductance tolerance (±15%), current rating (820 mA), and DC resistance (340 mOhm). Physical dimensions and seated height are identical, ensuring direct footprint compatibility on existing PCB layouts. The part is currently in active production status with ROHS3 compliance certification. The extended operating temperature range (-40°C to 125°C) provides additional thermal margin compared to the original part. This substitute is recommended for applications requiring maximum compatibility with the original design specifications.

DR1040-680-R Selection Criteria:

The DR1040-680-R from Eaton - Electronics Division is an alternative substitute within the same manufacturer family. This part meets the core inductance requirement (68 µH) and shielding specification. The DR1040-680-R offers improved electrical performance with higher current rating (1.42 A) and lower DC resistance (183 mOhm), providing design margin for higher current applications. However, the inductance tolerance is wider (±30%), and physical dimensions differ slightly (10.50 x 10.30 mm length and width with 4.00 mm height). This substitute is suitable for applications where the footprint variation is acceptable and where the improved current handling and reduced DCR provide circuit benefits. The part is in active production with ROHS3 compliance and extended operating temperature range (-40°C to 125°C).

Compliance and Availability:

Both substitute parts carry identical ECCN (EAR99) and HTSUS (8504.50.4000) classifications, ensuring regulatory consistency. Both are classified as MSL 1 (Unlimited moisture sensitivity level). Current inventory availability is confirmed for both substitutes, supporting production continuity.

Frequently Asked Questions (FAQ)

Q: Can the SRR1005-680Y directly replace the UP2SC-680-R without PCB layout changes?

A: Yes. The SRR1005-680Y maintains identical physical dimensions (12.70 x 10.00 mm length and width) and seated height (5.20 mm), enabling direct footprint compatibility. No PCB layout modifications are required.

Q: What is the key difference between the SRR1005-680Y and DR1040-680-R substitutes?

A: The SRR1005-680Y provides closer electrical equivalence with matching inductance tolerance (±15%) and identical current rating (820 mA) and DCR (340 mOhm). The DR1040-680-R offers improved performance with higher current rating (1.42 A) and lower DCR (183 mOhm) but has wider inductance tolerance (±30%) and different physical dimensions (10.50 x 10.30 mm).

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the SRR1005-680Y and DR1040-680-R are ROHS3 compliant. The original UP2SC-680-R RoHS status is not specified in the available documentation.

Q: What is the saturation current difference between the main part and substitutes?

A: The UP2SC-680-R has saturation current (Isat) of 1.39 A. The SRR1005-680Y has 1.1 A saturation current, which is lower. The DR1040-680-R has 1.65 A saturation current, which is higher. Applications requiring operation near saturation limits should account for these differences.

Q: Can the DR1040-680-R be used in space-constrained applications?

A: The DR1040-680-R has a smaller seated height (4.00 mm) compared to the UP2SC-680-R (5.20 mm), providing a 1.20 mm height advantage. However, the length and width dimensions are slightly larger (10.50 x 10.30 mm versus 12.70 x 10.00 mm), which may affect footprint compatibility depending on PCB layout constraints.

Q: What is the operating temperature range difference?

A: The UP2SC-680-R operates from -25°C to 85°C. Both substitute parts (SRR1005-680Y and DR1040-680-R) operate from -40°C to 125°C, providing extended temperature range capability for applications requiring wider thermal operating windows.

Q: Are there any DC resistance (DCR) considerations for circuit design?

A: The UP2SC-680-R and SRR1005-680Y both have maximum DCR of 340 mOhm. The DR1040-680-R has lower maximum DCR of 183 mOhm, resulting in reduced power dissipation and heat generation. Applications sensitive to inductor losses should consider this parameter.

Q: What packaging formats are available for the substitute parts?

A: Both substitute parts are supplied in Tape & Reel (TR) packaging format, suitable for automated assembly processes. The original UP2SC-680-R packaging format is listed as nonstandard.