UP2C-680-R Equivalent & Substitute Parts

Part Overview

The UP2C-680-R is a 68 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division, rated for 1.57 A continuous current with 151.7 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 equivalent and substitute components for ongoing design requirements and production continuity.

Substiute Parts

UP2C-680-R

Eaton - Electronics DivisionIn Stock: 987UP2C-680-R Datasheet

Current PartRFQ

B82476B1683M100

EPCOS - TDK ElectronicsIn Stock: 1390B82476B1683M100 Datasheet

DirectRFQ

SDR1005-680KL

Bourns Inc.In Stock: 1926SDR1005-680KL Datasheet

DirectRFQ

P0751.683NL

Pulse ElectronicsIn Stock: 2361P0751.683NL Datasheet

SimilarRFQ

P0751.683NLT

Pulse ElectronicsIn Stock: 1669P0751.683NLT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP2C-680-R is determined by the following critical parameters: inductance value (68 µH), inductance tolerance (±20%), current rating capability, DC resistance characteristics, core material (ferrite), shielding configuration (unshielded), and surface mount compatibility. All identified substitute parts maintain the 68 µH inductance specification and unshielded ferrite drum core construction. Substitutes are grouped based on current rating capacity and DC resistance performance relative to the original specification.

Direct substitutes demonstrate electrical performance within acceptable operating margins of the original part. Similar substitutes provide functional equivalence with variations in current rating or DC resistance that remain within acceptable application parameters.

Parameter Comparison

Engineering Selection Recommendations

B82476B1683M100 (EPCOS - TDK Electronics) is the primary direct substitute. This component maintains the 68 µH inductance and ±20% tolerance specification. The current rating of 1.65 A exceeds the original 1.57 A requirement, and DC resistance of 160 mOhm maximum is within acceptable variance of the original 151.7 mOhm specification. The part carries AEC-Q200 automotive qualification and ROHS3 compliance. Extended operating temperature range (-55°C to 150°C) provides superior thermal performance compared to the original specification. Inductance test frequency matches at 100 kHz.

P0751.683NLT (Pulse Electronics) and P0751.683NL (Pulse Electronics) are functionally equivalent alternatives. Both maintain 68 µH inductance with ±20% tolerance. Current rating of 1.4 A is slightly below the original 1.57 A specification but remains within acceptable application parameters for many circuit designs. DC resistance of 240 mOhm maximum represents increased resistance compared to the original part. Both variants are ROHS3 compliant and active products. The P0751.683NLT variant includes tape and reel packaging for automated assembly processes.

SDR1005-680KL (Bourns Inc.) provides an alternative with tighter inductance tolerance (±10%) and extended operating temperature range (-40°C to 125°C). Current rating of 1.2 A is the lowest among substitutes and may limit application in higher current circuits. DC resistance of 240 mOhm maximum is elevated relative to the original specification. This component includes published Q factor (24 @ 2.2 MHz) and self-resonant frequency (11 MHz) data. ROHS3 compliance and active product status support long-term availability.

All substitute parts are surface mount compatible, unshielded ferrite drum core inductors with moisture sensitivity level 1 (unlimited). Selection should be based on specific circuit current requirements, thermal environment, and packaging automation needs.

Frequently Asked Questions (FAQ)

Q: Can the B82476B1683M100 directly replace the UP2C-680-R without circuit modification?

A: The B82476B1683M100 maintains identical inductance (68 µH) and tolerance (±20%) specifications. The higher current rating (1.65 A vs. 1.57 A) and comparable DC resistance (160 mOhm max vs. 151.7 mOhm) support direct substitution in most applications. Extended operating temperature range provides additional design margin. No circuit modification is required for electrical compatibility.

Q: What is the impact of increased DC resistance in the Pulse Electronics and Bourns substitutes?

A: The P0751.683NL, P0751.683NLT, and SDR1005-680KL parts exhibit DC resistance of 240 mOhm maximum, compared to 151.7 mOhm in the original UP2C-680-R. This increase results in higher resistive losses during current flow. Power dissipation increases proportionally with the square of current. Applications operating near the 1.57 A current limit should evaluate thermal impact. Lower current applications experience minimal practical effect.

Q: Are all substitute parts RoHS compliant?

A: Yes. The B82476B1683M100, SDR1005-680KL, P0751.683NL, and P0751.683NLT are all ROHS3 compliant. The original UP2C-680-R RoHS status is not specified in available documentation.

Q: What is the difference between P0751.683NL and P0751.683NLT?

A: Both parts are electrically identical 68 µH inductors with 1.4 A current rating and 240 mOhm maximum DC resistance. The primary difference is packaging: P0751.683NL is supplied in bulk packaging, while P0751.683NLT is supplied in tape and reel (TR) format. Tape and reel packaging is optimized for automated pick-and-place assembly processes. Selection depends on manufacturing process requirements.

Q: Does the Bourns SDR1005-680KL lower current rating (1.2 A) limit its use as a substitute?

A: The SDR1005-680KL current rating of 1.2 A is below the original 1.57 A specification. This part is suitable for applications where circuit current remains below 1.2 A. Applications requiring the full 1.57 A capacity should select the B82476B1683M100 or Pulse Electronics alternatives. Saturation current (Isat) of 1.4 A indicates the part will saturate at currents exceeding this threshold.

Q: What are the physical dimension differences among substitute parts?

A: All parts are surface mount nonstandard package inductors with similar footprints. The UP2C-680-R measures 0.508" L × 0.370" W × 0.205" H (12.90mm × 9.40mm × 5.20mm). The B82476B1683M100 measures 0.510" L × 0.370" W × 0.200" H (12.95mm × 9.40mm × 5.08mm). The SDR1005-680KL measures 0.500" L × 0.394" W × 0.197" H (12.70mm × 10.00mm × 5.00mm). The Pulse Electronics parts measure 0.510" L × 0.370" W × 0.215" H (12.95mm × 9.40mm × 5.46mm). Dimensional variations are minimal and typically accommodate standard PCB footprints designed for the original part.

Q: Which substitute offers the best thermal performance?

A: The B82476B1683M100 provides the widest operating temperature range (-55°C to 150°C) compared to the original specification (-40°C to 85°C). The Pulse Electronics parts operate to 130°C, and the Bourns part to 125°C. For applications in elevated temperature environments, the B82476B1683M100 is the optimal selection.

Q: Are all substitute parts currently in active production?

A: Yes. The B82476B1683M100, SDR1005-680KL, P0751.683NL, and P0751.683NLT are all classified as active products with current manufacturing status. The original UP2C-680-R is obsolete. Active product status ensures long-term availability and supply chain continuity for new designs and production requirements.