UP2SC-181-R Equivalent & Substitute Parts

Part Overview

The UP2SC-181-R is a 180 µH shielded wirewound inductor manufactured by Eaton - Electronics Division, part of the UNI-PAC™ 2SC series. This surface mount component is rated for 500 mA continuous current with a maximum DC resistance of 700 mOhm and operates across the temperature range of -25°C to 85°C. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

UP2SC-181-R

Eaton - Electronics DivisionIn Stock: 1116UP2SC-181-R Datasheet

Current PartRFQ

SRR1005-181K

Bourns Inc.In Stock: 815SRR1005-181K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP2SC-181-R is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Inductance value: 180 µH with ±10% tolerance
• Current rating: minimum 500 mA continuous
• DC resistance: maximum 700 mOhm
• Shielding: shielded construction required

Mechanical Equivalence Criteria:

• Mounting type: surface mount only
• Physical footprint: 12.70 mm length × 10.00 mm width
• Height: maximum 5.20 mm seated height
• Package classification: nonstandard form factor

Environmental Compliance:

• Moisture sensitivity level: MSL 1 or better
• ECCN and HTSUS classifications must align

The SRR1005-181K from Bourns Inc. meets all electrical and mechanical substitution criteria and is classified as an active product with enhanced environmental specifications.

Parameter Comparison

Engineering Selection Recommendations

The SRR1005-181K from Bourns Inc. is a direct functional equivalent to the obsolete UP2SC-181-R. Both components share identical electrical specifications (180 µH inductance, 500 mA rating, 700 mOhm maximum DC resistance) and mechanical form factors (12.70 × 10.00 × 5.20 mm).

The SRR1005-181K offers the following advantages for component selection:

Product Status: The SRR1005-181K maintains active product status with ongoing manufacturer support, ensuring long-term availability and supply chain stability compared to the obsolete UP2SC-181-R.

Environmental Compliance: The SRR1005-181K is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The extended operating temperature range (-40°C to 125°C) provides additional thermal margin beyond the original specification (-25°C to 85°C).

Packaging: The SRR1005-181K is supplied in Tape & Reel (TR) format, supporting automated assembly processes.

Both components carry identical ECCN (EAR99) and HTSUS (8504.50.4000) classifications, confirming trade compliance alignment.

Frequently Asked Questions (FAQ)

Q: Can the SRR1005-181K replace the UP2SC-181-R in existing designs?

A: Yes. The SRR1005-181K meets all electrical and mechanical specifications of the UP2SC-181-R. Both components have identical inductance (180 µH ±10%), current rating (500 mA), DC resistance (700 mOhm max), shielding, and physical dimensions (12.70 × 10.00 × 5.20 mm). PCB layout and footprint compatibility is confirmed.

Q: What are the key differences between these two inductors?

A: The primary differences are product status and environmental specifications. The UP2SC-181-R is obsolete; the SRR1005-181K is active. The SRR1005-181K operates across -40°C to 125°C (versus -25°C to 85°C) and carries ROHS3 compliance certification. Core material differs (unspecified for UP2SC-181-R; ferrite drum core for SRR1005-181K), but electrical performance remains equivalent.

Q: Are there any saturation current differences?

A: Yes. The UP2SC-181-R has a saturation current (Isat) of 820 mA, while the SRR1005-181K is rated at 650 mA. For applications operating below 500 mA continuous current, this difference is not critical. Applications requiring saturation margin above 650 mA should evaluate this parameter against circuit requirements.

Q: What packaging formats are available?

A: The UP2SC-181-R was supplied in nonstandard packaging with unspecified supplier device package details. The SRR1005-181K is available in Tape & Reel (TR) format, supporting high-volume automated assembly.

Q: Are moisture sensitivity levels equivalent?

A: Yes. Both components carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity restrictions for storage or handling.

Q: Can I use the SRR1005-181K in applications with extended temperature requirements?

A: The SRR1005-181K supports operation from -40°C to 125°C, exceeding the original UP2SC-181-R specification of -25°C to 85°C. This provides additional thermal margin for applications requiring extended temperature performance.