UP2SC-820-R Equivalent & Substitute Parts

Part Overview

The UP2SC-820-R is a 82 µH shielded wirewound inductor manufactured by Eaton - Electronics Division, part of the UNI-PAC™ 2SC series. This component is rated for 750 mA continuous current with a maximum DC resistance of 380 mOhm and operates across a temperature range of -25°C to 85°C. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value	Unit
Inductance	82	µH
Inductance Tolerance	±15	%
Current Rating	750	mA
DC Resistance (Max)	380	mOhm
Shielding	Shielded	—
Mounting Type	Surface Mount	—
Physical Dimensions	12.70 × 10.00 × 5.20	mm (L × W × H)
Operating Temperature Range	-25 to 85	°C
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the UP2SC-820-R is based on strict equivalence of the following electrical and mechanical parameters:

Critical Matching Parameters:

Inductance value: 82 µH with ±15% tolerance
Current rating: 750 mA minimum
DC resistance: 380 mOhm maximum
Shielding requirement: Shielded construction
Mounting configuration: Surface mount
Physical footprint: 12.70 mm × 10.00 mm × 5.20 mm maximum height
Moisture sensitivity: MSL 1 or better

The SRR1005-820Y from Bourns Inc. meets all critical electrical and mechanical parameters required for direct substitution. Both components share identical inductance, tolerance, current rating, DC resistance specification, shielding type, and physical dimensions. The substitute part maintains compatibility with the original circuit requirements while offering active product status and improved availability.

Parameter Comparison

Parameter	UP2SC-820-R (Eaton)	SRR1005-820Y (Bourns)	Match Status
Inductance	82 µH	82 µH	Equivalent
Tolerance	±15%	±15%	Equivalent
Current Rating	750 mA	750 mA	Equivalent
DC Resistance (Max)	380 mOhm	380 mOhm	Equivalent
Saturation Current	1.27 A	950 mA	Substitute Lower
Shielding	Shielded	Shielded	Equivalent
Core Type	Wirewound	Drum Core, Wirewound	Compatible
Mounting Type	Surface Mount	Surface Mount	Equivalent
Package Dimensions	12.70 × 10.00 × 5.20 mm	12.70 × 10.00 × 5.20 mm	Equivalent
Operating Temperature	-25 to 85°C	-40 to 125°C	Substitute Wider
Moisture Sensitivity	MSL 1	MSL 1	Equivalent
Product Status	Obsolete	Active	Substitute Active
RoHS Compliance	Not specified	ROHS3 Compliant	Substitute Compliant

Engineering Selection Recommendations

The SRR1005-820Y from Bourns Inc. is the qualified substitute for the obsolete UP2SC-820-R. Selection is based on the following engineering criteria:

Electrical Equivalence: Both inductors maintain identical inductance (82 µH ±15%), current rating (750 mA), and DC resistance (380 mOhm maximum). These parameters ensure functional compatibility in the original circuit application.

Mechanical Compatibility: Physical dimensions are identical (12.70 × 10.00 × 5.20 mm), confirming PCB footprint and assembly compatibility without design modification.

Product Status: The SRR1005-820Y holds active product status with confirmed inventory availability (6200 pcs), eliminating supply chain risk associated with the obsolete UP2SC-820-R.

Regulatory Compliance: The substitute part carries ROHS3 compliance certification and REACH unaffected status, meeting current environmental and regulatory requirements. The original part's compliance status is not specified.

Operating Conditions: The SRR1005-820Y supports an extended operating temperature range (-40 to 125°C) compared to the original (-25 to 85°C), providing additional thermal margin for demanding applications.

Saturation Current Consideration: The substitute part exhibits lower saturation current (950 mA versus 1.27 A). Circuit designs operating near or above 950 mA saturation threshold require verification that peak current demands remain within the substitute's saturation specification.

Frequently Asked Questions (FAQ)

Q: Can the SRR1005-820Y directly replace the UP2SC-820-R without PCB modification?

A: Yes. Both inductors share identical physical dimensions (12.70 × 10.00 × 5.20 mm) and surface mount configuration. No PCB layout changes are required for mechanical or electrical integration.

Q: What is the primary reason for substitution?

A: The UP2SC-820-R is classified as obsolete. The SRR1005-820Y provides functional equivalence with active product status and established supply chain availability.

Q: Are the electrical specifications identical?

A: Inductance (82 µH ±15%), current rating (750 mA), and DC resistance (380 mOhm maximum) are identical. Saturation current differs: the substitute is rated at 950 mA versus 1.27 A for the original. Circuits operating below 950 mA saturation threshold experience no functional difference.

Q: What packaging formats are available for the SRR1005-820Y?

A: The substitute is supplied in Tape & Reel (TR) format. Verify packaging compatibility with your procurement and assembly processes.

Q: Does the substitute meet current environmental standards?

A: Yes. The SRR1005-820Y is ROHS3 compliant and REACH unaffected. The original part's compliance status is not documented.

Q: What is the operating temperature range difference?

A: The substitute supports -40 to 125°C versus the original's -25 to 85°C. This extended range provides additional thermal margin but does not affect applications within the original temperature specification.

Q: Are there any circuit performance differences?

A: Q factor differs at specified test frequencies (85 @ 100 kHz for original; 35 @ 2.52 MHz for substitute). For applications sensitive to Q factor performance, circuit simulation or testing is necessary to confirm functional equivalence in the specific application context.

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