IMC1210EB3R9K Equivalent & Substitute Parts

Part Overview

The IMC1210EB3R9K is a 3.9 µH unshielded drum core wirewound inductor manufactured by Vishay Dale, rated for 250 mA with a maximum DC resistance of 1.3Ohm. This component is designed for surface mount applications in the 1210 (3225 Metric) package format. The part maintains Active product status and is ROHS3 compliant, making it suitable for current industrial and commercial applications. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and performance envelope.

Substiute Parts

IMC1210EB3R9K

Vishay DaleIn Stock: 1177IMC1210EB3R9K Datasheet

Current PartRFQ

744764039

Würth ElektronikIn Stock: 1410744764039 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IMC1210EB3R9K are qualified based on the following critical parameters:

Inductance value of 3.9 µH with ±10% tolerance ensures functional equivalence in circuit operation. Current rating of 250 mA establishes the maximum safe operating current. DC resistance maximum of 1.3Ohm defines acceptable power dissipation characteristics. Package format 1210 (3225 Metric) with surface mount configuration ensures mechanical and electrical compatibility with the original PCB layout. Unshielded drum core construction and Q factor of 30 @ 7.96MHz maintain frequency response characteristics. ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity confirm regulatory and handling compatibility.

The substitute part 744764039 from Würth Elektronik meets all these critical parameters within the specified tolerances and package requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the IMC1210EB3R9K and 744764039 maintain Active product status with full ROHS3 compliance and MSL Level 1 rating. The electrical specifications are identical across inductance, current rating, DC resistance, and frequency characteristics. Dimensional compatibility is confirmed with negligible height variation (0.095" vs 0.094") and width tolerance (2.49mm vs 2.50mm) within standard PCB assembly tolerances. The primary difference is core material composition: Vishay Dale uses iron powder core while Würth Elektronik uses ferrite core. Both configurations deliver equivalent performance within the specified parameters. Operating temperature ranges differ slightly (Vishay Dale: -55°C to 125°C; Würth Elektronik: -40°C to 105°C), which should be evaluated against specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can 744764039 be used as a direct replacement for IMC1210EB3R9K?

A: Yes. Both parts share identical inductance (3.9 µH), current rating (250 mA), DC resistance (1.3Ohm max), and package format (1210/3225 Metric). Electrical performance and PCB footprint compatibility are maintained.

Q: What is the difference between iron powder and ferrite core materials in these inductors?

A: Core material affects frequency response and saturation characteristics. Both materials in these parts deliver the specified Q factor of 30 @ 7.96MHz and self-resonant frequency within acceptable ranges (Vishay Dale: 55MHz; Würth Elektronik: 50MHz). Selection depends on application-specific frequency requirements.

Q: Are there packaging differences between these parts?

A: IMC1210EB3R9K is supplied in Bulk packaging, while 744764039 is supplied in Tape & Reel (TR) format. Both use the same 1210 (3225 Metric) surface mount package. Packaging format affects procurement and assembly processes but not component performance.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity rating. ECCN and HTSUS classifications are identical.

Q: What is the operating temperature consideration for substitution?

A: IMC1210EB3R9K operates from -55°C to 125°C, while 744764039 operates from -40°C to 105°C. Applications requiring operation below -40°C or above 105°C must use the Vishay Dale part.