UP5-101-R Equivalent & Substitute Parts Reference

Part Overview

The UP5-101-R is a 100 µH unshielded wirewound surface mount inductor manufactured by Eaton Electronics Division, part of the UNI-PAC™ 5 series. This component is rated for 1.8 A continuous current with a maximum DC resistance of 190 mOhm and operates across the temperature range of -25°C to 105°C. The part maintains Active product status and is RoHS Compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across critical parameters including inductance value, current rating, DC resistance, saturation current, and physical dimensions. Alternative sources provide equivalent functionality for applications requiring component availability, supply chain flexibility, or specific packaging formats.

Substiute Parts

UP5-101-R

Eaton - Electronics DivisionIn Stock: 995UP5-101-R Datasheet

Current PartRFQ

P0250.104NLT

Pulse ElectronicsIn Stock: 3437P0250.104NLT Datasheet

DirectRFQ

7445820

Würth ElektronikIn Stock: 35387445820 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UP5-101-R are classified into two categories based on substitution relationship type and electrical equivalence:

Direct Manufacturer Substitute (Pulse Electronics P0250.104NLT): This part maintains identical electrical specifications across all critical parameters: 100 µH inductance, 1.8 A current rating, 190 mOhm maximum DC resistance, and 3 A saturation current. The tolerance specification improves from ±20% to ±15%. Physical dimensions remain within acceptable variance (0.733" L x 0.596" W vs. 0.724" L x 0.591" W). Operating temperature range extends to -40°C to 130°C. Packaging format differs (Cut Tape & Digi-Reel® vs. Tape & Reel), which affects supply chain and assembly processes but not electrical performance. RoHS3 compliance and REACH Unaffected status provide enhanced regulatory coverage.

Similar Manufacturer Substitute (Würth Elektronik 7445820): This part achieves electrical equivalence through a drum core ferrite construction rather than standard wirewound design. Electrical parameters remain equivalent: 100 µH inductance, 1.8 A current rating, 190 mOhm maximum DC resistance. Saturation current increases to 3.4 A, providing additional operating margin. Tolerance remains ±20%. Physical dimensions show minimal variance (0.730" L x 0.600" W vs. 0.724" L x 0.591" W). Operating temperature range extends to -40°C to 125°C. Self-resonant frequency is specified at 6 MHz. RoHS3 compliance and REACH Unaffected status align with regulatory requirements.

Substitution logic is based strictly on the following allowed parameters: inductance value, current rating, DC resistance maximum, saturation current, shielding type, mounting type, package classification, operating temperature range, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criteria:

All three parts maintain Active product status and meet RoHS compliance requirements. The UP5-101-R (Eaton) and 7445820 (Würth Elektronik) are supplied in Tape & Reel packaging, which aligns with high-volume automated assembly processes. The P0250.104NLT (Pulse Electronics) offers Cut Tape and Digi-Reel® options, suitable for lower-volume or mixed-component procurement scenarios.

Electrical Equivalence:

All substitute parts deliver the specified 100 µH inductance, 1.8 A current rating, and 190 mOhm maximum DC resistance. The P0250.104NLT provides tighter tolerance (±15% vs. ±20%), reducing inductance variation in production. The 7445820 offers increased saturation current (3.4 A vs. 3.0 A), providing additional operating margin in current-limited applications.

Temperature Range Considerations:

The original UP5-101-R operates from -25°C to 105°C. Both substitute parts extend the lower temperature limit to -40°C. The P0250.104NLT extends the upper limit to 130°C, while the 7445820 reaches 125°C. Selection depends on application environment requirements.

Physical Compatibility:

All parts are classified as Nonstandard package with surface mount mounting type. Dimensional variance is minimal across all three parts (length range 18.40–18.62 mm, width range 15.00–15.24 mm, height range 7.11–7.50 mm). PCB footprint and assembly tooling compatibility should be verified for specific production environments.

Regulatory and Compliance Status:

The P0250.104NLT and 7445820 both carry ROHS3 Compliant status with REACH Unaffected designation, providing enhanced regulatory coverage compared to the RoHS Compliant status of the UP5-101-R. All parts maintain MSL 1 (Unlimited) moisture sensitivity rating.

Inventory and Supply Chain:

Current inventory levels are: UP5-101-R (922 pcs), P0250.104NLT (3350 pcs), and 7445820 (3466 pcs). Substitute parts offer significantly higher stock availability.

Frequently Asked Questions (FAQ)

Q: Can the P0250.104NLT be used as a direct replacement for the UP5-101-R in existing designs?

A: Yes. The P0250.104NLT maintains identical electrical specifications (100 µH, 1.8 A, 190 mOhm DCR) and surface mount mounting type. Physical dimensions are within acceptable variance for standard PCB layouts. The primary difference is packaging format (Cut Tape & Digi-Reel® vs. Tape & Reel), which affects procurement and assembly processes but not electrical performance or board-level compatibility.

Q: What is the advantage of the 7445820 over the UP5-101-R?

A: The 7445820 provides three key advantages: (1) increased saturation current of 3.4 A versus 3.0 A, offering additional operating margin; (2) extended operating temperature range to -40°C to 125°C; (3) ROHS3 Compliant status with REACH Unaffected designation for enhanced regulatory coverage. Electrical performance at rated specifications remains equivalent.

Q: Does the ferrite drum core construction of the 7445820 affect EMI performance compared to the standard wirewound design?

A: Both the UP5-101-R and 7445820 are unshielded inductors with similar self-resonant frequencies (5.7 MHz vs. 6 MHz). EMI characteristics are determined by shielding type and frequency response, both of which are equivalent. The ferrite core material does not introduce additional EMI concerns for unshielded applications.

Q: Are there packaging considerations when switching from UP5-101-R to P0250.104NLT?

A: Yes. The UP5-101-R is supplied in Tape & Reel (TR) format, while the P0250.104NLT is available in Cut Tape (CT) and Digi-Reel® formats. Tape & Reel is optimized for high-speed automated pick-and-place assembly. Cut Tape and Digi-Reel® are suitable for lower-volume production or component kitting. Assembly equipment compatibility should be verified before procurement.

Q: Which substitute part offers the best tolerance specification?

A: The P0250.104NLT offers ±15% tolerance compared to ±20% for both the UP5-101-R and 7445820. Tighter tolerance reduces inductance variation in production and may improve circuit performance in applications sensitive to inductance accuracy. However, all three parts meet the same functional inductance specification of 100 µH.

Q: Can these parts be used interchangeably in high-temperature applications?

A: The UP5-101-R is rated to 105°C maximum. For applications requiring operation above 105°C, the P0250.104NLT (130°C) or 7445820 (125°C) must be selected. Both substitute parts maintain all electrical specifications across their extended temperature ranges.

Q: What is the significance of the REACH Unaffected status on the substitute parts?

A: REACH Unaffected status indicates that the component does not contain substances of very high concern (SVHC) listed under the EU REACH regulation. This provides regulatory assurance for applications subject to European environmental and safety requirements. The original UP5-101-R does not specify REACH status.

Q: Are there any frequency-dependent performance differences between these parts?

A: The UP5-101-R and 7445820 specify self-resonant frequencies of 5.7 MHz and 6 MHz respectively. The P0250.104NLT does not specify this parameter. For applications operating near or above these frequencies, frequency response characteristics should be evaluated. At the specified test frequency of 100 kHz, all parts are equivalent.