ER1025-74KP Equivalent & Substitute Parts

Part Overview

The ER1025-74KP is a 180 µH unshielded molded inductor manufactured by API Delevan Inc., designed for through-hole axial mounting applications. This ferrite-core component operates across a temperature range of -55°C to 105°C with a maximum DC resistance of 17 Ohm and a current rating of 57 mA. The part maintains an active product status and is currently available in inventory.

Substitute parts are identified to address specific application requirements, including enhanced current handling capacity, extended operating temperature ranges, or improved component availability and compliance certifications.

Substiute Parts

ER1025-74KP

API Delevan Inc.In Stock: 1037ER1025-74KP Datasheet

Current PartRFQ

9230-74-RC

Bourns Inc.In Stock: 22169230-74-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ER1025-74KP are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value: 180 µH
• Inductance tolerance: ±10%
• DC resistance: 17 Ohm Max
• Q factor @ 790 kHz: 30
• Self resonant frequency: 10 MHz
• Core material: Ferrite
• Shielding configuration: Unshielded
• Package type: Axial through-hole
• Physical dimensions: 0.095" Dia x 0.250" L

Allowable Variation Parameters:

• Current rating: May exceed the main part specification
• Operating temperature range: May extend beyond the main part specification
• Packaging format: May differ (Bulk vs. Tape & Reel)
• RoHS compliance status: May differ

The substitute part 9230-74-RC from Bourns Inc. satisfies all critical matching parameters while providing enhanced current handling capacity (79 mA vs. 57 mA) and extended upper operating temperature limit (125°C vs. 105°C).

Parameter Comparison

Engineering Selection Recommendations

ER1025-74KP Selection Criteria:

• Applications requiring RoHS non-compliant component specifications
• Designs with current requirements at or below 57 mA
• Operating environments with maximum temperature not exceeding 105°C
• Tape & Reel packaging requirement for automated assembly processes

9230-74-RC Selection Criteria:

• Applications requiring ROHS3 compliance certification
• Designs with current requirements between 57 mA and 79 mA
• Operating environments with maximum temperature up to 125°C
• Bulk packaging acceptable for manual assembly or inventory management
• Applications where extended thermal operating range provides design margin

Both parts maintain identical electrical performance in inductance, tolerance, DC resistance, Q factor, and self-resonant frequency. Selection between these parts depends on compliance requirements, thermal operating conditions, and current load specifications of the target application.

Frequently Asked Questions (FAQ)

Q: Can the 9230-74-RC directly replace the ER1025-74KP in all applications?

A: The 9230-74-RC is electrically and mechanically compatible with the ER1025-74KP for applications operating at or below 57 mA and 105°C. Applications requiring higher current capacity (up to 79 mA) or extended temperature operation (up to 125°C) benefit from the substitute part's enhanced specifications. RoHS compliance requirements must be evaluated separately.

Q: What is the significance of the current rating difference between these parts?

A: The ER1025-74KP is rated for 57 mA maximum current, while the 9230-74-RC is rated for 79 mA. This difference reflects the maximum continuous current each inductor can handle without exceeding saturation or thermal limits. Applications operating below 57 mA show no functional difference between parts.

Q: Are the physical dimensions identical between these inductors?

A: Yes. Both the ER1025-74KP and 9230-74-RC share identical axial dimensions of 0.095" diameter by 0.250" length (2.41mm x 6.35mm). They are mechanically interchangeable in through-hole PCB layouts.

Q: What is the difference between Tape & Reel and Bulk packaging?

A: Tape & Reel packaging (ER1025-74KP) is designed for automated pick-and-place assembly equipment. Bulk packaging (9230-74-RC) is suitable for manual assembly or inventory storage. Packaging format does not affect electrical or mechanical performance.

Q: How do the RoHS compliance statuses differ?

A: The ER1025-74KP is RoHS non-compliant, while the 9230-74-RC is ROHS3 compliant. Applications subject to RoHS regulations must use the 9230-74-RC. Both parts are REACH unaffected and classified as EAR99 for export control purposes.

Q: What is the operating temperature range difference?

A: The ER1025-74KP operates from -55°C to 105°C, while the 9230-74-RC extends the upper limit to 125°C. Both maintain the same lower temperature limit of -55°C. Applications in elevated temperature environments benefit from the 9230-74-RC's extended thermal range.