UP1B-221-R Equivalent & Substitute Parts

Part Overview

The UP1B-221-R is a 220 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 360 mA continuous current with a maximum DC resistance of 1.96 Ohm and operates across the temperature range of -40°C to 85°C. The part is classified as Active product status and is RoHS Compliant with MSL 1 rating.

Substitute parts are identified when equivalent inductance values, core materials, and mounting technologies are available from alternative manufacturers, provided that the electrical and mechanical parameters remain within acceptable tolerances for the application circuit requirements.

Substiute Parts

UP1B-221-R

Eaton - Electronics DivisionIn Stock: 1584UP1B-221-R Datasheet

Current PartRFQ

SDR0805-221KL

Bourns Inc.In Stock: 3671SDR0805-221KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP1B-221-R is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 220 µH (exact match required)
• Core type: Ferrite drum core wirewound
• Mounting technology: Surface mount
• Shielding configuration: Unshielded

Secondary Compatibility Criteria:

• Current rating must equal or exceed 360 mA
• Saturation current (Isat) must equal or exceed 380 mA
• DC resistance must not exceed 1.96 Ohm
• Operating temperature range must encompass -40°C to 85°C minimum
• Package dimensions must be compatible with PCB layout constraints
• Environmental compliance: RoHS status acceptable

The SDR0805-221KL from Bourns Inc. qualifies as a substitute based on matching inductance, core material, mounting type, and shielding configuration. The substitute part exceeds the minimum current and saturation current requirements and operates within an extended temperature range.

Parameter Comparison

Engineering Selection Recommendations

UP1B-221-R Selection Criteria:

• Primary choice when Eaton component availability and supply chain continuity are prioritized
• Suitable for applications operating within -40°C to 85°C temperature envelope
• RoHS Compliant status meets environmental regulatory requirements
• Nonstandard package dimensions require verification against PCB footprint specifications

SDR0805-221KL Selection Criteria:

• Alternative selection when higher current capacity margin is required (490 mA vs. 360 mA)
• Preferred when lower DC resistance is beneficial for thermal management (960 mOhm vs. 1.96 Ohm)
• Applicable for extended temperature range applications up to 125°C
• ROHS3 Compliant status meets current environmental standards
• Tighter inductance tolerance (±10%) provides improved circuit performance consistency
• Bourns SDR0805 series availability and inventory levels support supply chain requirements

Both parts maintain Active product status and carry unlimited moisture sensitivity rating (MSL 1), indicating no special storage or handling requirements.

Frequently Asked Questions (FAQ)

Q: Can SDR0805-221KL directly replace UP1B-221-R in existing designs?

A: Direct replacement is possible when the following conditions are met: PCB footprint accommodates the substitute part dimensions (SDR0805-221KL: 0.307" diameter vs. UP1B-221-R: 0.350" L x 0.240" W), circuit design does not depend on the higher DC resistance of the original part, and operating temperature does not exceed 125°C. Physical dimension verification is mandatory before implementation.

Q: What are the electrical performance differences between these parts?

A: The SDR0805-221KL provides superior electrical characteristics: 36% higher current rating (490 mA vs. 360 mA), 110% higher saturation current (800 mA vs. 380 mA), and 51% lower DC resistance (960 mOhm vs. 1.96 Ohm). Inductance tolerance is tighter by half (±10% vs. ±20%). These differences result in lower power dissipation and improved current handling capability in the substitute part.

Q: Are there compliance or certification differences?

A: Both parts are RoHS compliant. The UP1B-221-R carries RoHS Compliant certification, while the SDR0805-221KL carries ROHS3 Compliant certification, representing updated environmental standards. Both parts are MSL 1 rated with unlimited moisture sensitivity, requiring no special handling. REACH status for SDR0805-221KL is listed as Unaffected.

Q: What package considerations apply to substitution?

A: The UP1B-221-R uses a nonstandard package measuring 0.350" L x 0.240" W x 0.197" H (8.89mm x 6.10mm x 5.00mm). The SDR0805-221KL uses a nonstandard package with 0.307" diameter and 0.209" height (7.80mm x 5.30mm). PCB layout and component placement must accommodate these dimensional differences. Tape & Reel packaging is standard for both parts.

Q: Which part should be selected for new designs?

A: For new designs, the SDR0805-221KL is preferred based on superior electrical performance, extended temperature range, tighter tolerance, and improved current handling. The UP1B-221-R remains suitable for designs with existing supply chain commitments or specific Eaton component requirements.