UP2C-330-R Equivalent & Substitute Parts Reference

Part Overview

The UP2C-330-R is a 33 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division, rated for 2.16 A continuous current with 79.7 mOhm DC resistance. This component is part of the UNI-PAC™ 2C series and operates across the -40°C to 85°C temperature range. The part is currently obsolete, making identification of equivalent and substitute components essential for design continuity, maintenance, and production support.

Substiute Parts

UP2C-330-R

Eaton - Electronics DivisionIn Stock: 1085UP2C-330-R Datasheet

Current PartRFQ

B82476A1333M000

EPCOS - TDK ElectronicsIn Stock: 2307B82476A1333M000 Datasheet

DirectRFQ

P0751.333NLT

Pulse ElectronicsIn Stock: 3377P0751.333NLT Datasheet

DirectRFQ

SDR1005-330KL

Bourns Inc.In Stock: 8817SDR1005-330KL Datasheet

DirectRFQ

P0751.333NL

Pulse ElectronicsIn Stock: 3875P0751.333NL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UP2C-330-R is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 33 µH (fixed requirement)
• Inductance tolerance: ±20% (acceptable range)
• Core material: Ferrite drum core construction
• Shielding configuration: Unshielded
• Mounting type: Surface Mount
• Moisture sensitivity: MSL 1 or better

Secondary Compatibility Criteria:

• Current rating: Minimum 2.0 A (substitute must support or exceed application current demands)
• DC resistance: Maximum 120 mOhm (acceptable variance from original 79.7 mOhm)
• Operating temperature: Minimum -40°C to 85°C overlap required
• Package dimensions: Nonstandard form factor with height ≤ 5.5 mm

Substitution Classification:

• Direct Substitutes: Parts meeting all primary and secondary criteria with active product status
• Similar Substitutes: Parts meeting primary criteria with minor parameter variations or different packaging configurations

Parameter Comparison

Engineering Selection Recommendations

Recommended Primary Substitute: B82476A1333M000 (EPCOS/TDK)

The B82476A1333M000 provides the closest electrical and mechanical alignment to the UP2C-330-R. This part maintains ferrite drum core construction, matches the 33 µH inductance specification, and operates within compatible current parameters (2.1 A vs. 2.16 A original). DC resistance of 88 mOhm maximum represents a 10.4% increase from the original 79.7 mOhm, which remains within acceptable tolerance for most applications. The extended operating temperature range (-55°C to 150°C) provides superior thermal coverage. ROHS3 compliance and active product status ensure long-term availability and regulatory alignment. Packaging in Tape & Reel format supports automated assembly processes.

Recommended Secondary Substitute: P0751.333NLT (Pulse Electronics)

The P0751.333NLT offers active product status with 2.0 A current rating and 120 mOhm maximum DC resistance. While the wirewound construction differs from the original drum core design, electrical performance remains compatible for 33 µH applications. The ±20% inductance tolerance matches the original specification. Operating temperature range of -40°C to 130°C covers the original -40°C to 85°C requirement. ROHS3 compliance and Tape & Reel packaging support modern manufacturing requirements. This substitute is suitable when B82476A1333M000 availability is constrained.

Alternative Substitute: SDR1005-330KL (Bourns Inc.)

The SDR1005-330KL maintains ferrite drum core construction and unshielded configuration. The ±10% inductance tolerance provides tighter specification control than the original ±20%. However, the 1.8 A current rating falls below the original 2.16 A specification, limiting application to designs with reduced current demands. DC resistance of 120 mOhm maximum and operating temperature range of -40°C to 125°C remain compatible. ROHS3 compliance and active status support regulatory requirements. This part is suitable only when application current requirements do not exceed 1.8 A.

Similar Substitute: P0751.333NL (Pulse Electronics)

The P0751.333NL is functionally equivalent to P0751.333NLT with identical electrical specifications (2.0 A, 120 mOhm maximum DCR, ±20% tolerance). Packaging configuration differs (standard packaging vs. Tape & Reel), which may affect assembly process compatibility. Product status is active with ROHS3 compliance. This part serves as an alternative when tape-and-reel packaging is not required.

Frequently Asked Questions (FAQ)

Q: Can the B82476A1333M000 directly replace the UP2C-330-R without circuit modifications?

A: Yes. The B82476A1333M000 maintains the same 33 µH inductance value, ±20% tolerance, ferrite drum core construction, and unshielded configuration. Current rating of 2.1 A is within 97% of the original 2.16 A specification. DC resistance increase from 79.7 mOhm to 88 mOhm maximum represents acceptable variance for most applications. No circuit modifications are required.

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

A: Substitute parts with higher DC resistance (88-120 mOhm vs. 79.7 mOhm original) will generate proportionally higher resistive losses during operation. For a 2.0 A application, the P0751.333NLT or SDR1005-330KL with 120 mOhm DCR will dissipate 0.48 W compared to 0.32 W for the original part. This 50% increase in resistive loss must be evaluated against thermal design margins in the target application.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts (B82476A1333M000, P0751.333NLT, SDR1005-330KL, and P0751.333NL) carry ROHS3 compliance certification. The original UP2C-330-R does not specify RoHS status due to its obsolete classification.

Q: Can the SDR1005-330KL be used in applications requiring 2.16 A continuous current?

A: No. The SDR1005-330KL is rated for 1.8 A continuous current, which is 83% of the original 2.16 A specification. Using this part in applications exceeding 1.8 A will cause premature saturation and potential thermal failure. This substitute is suitable only for applications with current demands of 1.8 A or lower.

Q: What is the difference between P0751.333NLT and P0751.333NL?

A: Both parts are electrically identical with 33 µH inductance, 2.0 A current rating, and 120 mOhm maximum DC resistance. The primary difference is packaging: P0751.333NLT is supplied in Tape & Reel (TR) format for automated assembly, while P0751.333NL uses standard packaging. Select based on assembly process requirements.

Q: Do substitute parts maintain the same physical dimensions as the UP2C-330-R?

A: Substitute parts maintain compatible nonstandard form factors with minor dimensional variations. The UP2C-330-R measures 0.508" L × 0.370" W × 0.205" H (12.90mm × 9.40mm × 5.20mm). Substitutes range from 0.500" to 0.510" length, 0.370" to 0.394" width, and 0.197" to 0.215" height. These variations remain within typical PCB layout tolerances for surface mount components.

Q: Which substitute offers the widest operating temperature range?

A: The B82476A1333M000 provides the widest operating temperature range of -55°C to 150°C, compared to the original -40°C to 85°C specification. This extended range provides design margin for applications with extreme thermal environments.

Q: Are all substitute parts available in high volume?

A: Yes. Current inventory levels are: B82476A1333M000 (2,243 pcs), P0751.333NLT (3,320 pcs), SDR1005-330KL (8,777 pcs), and P0751.333NL (3,819 pcs). All parts are in active production with established supply chains.