IM02EB471K 470µH Unshielded Molded Inductor Equivalent & Substitute Parts

Part Overview

The IM02EB471K is a 470µH unshielded molded inductor manufactured by Vishay Dale, designed for through-hole axial mounting applications. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part delivers 36mA current rating with 42Ohm maximum DC resistance and operates across the -55°C to 105°C temperature range. Substitute parts maintain identical electrical and mechanical specifications while offering active product status and improved availability.

Key Parameters

Parameter	Value
Inductance	470µH
Inductance Tolerance	±10%
Current Rating	36mA
DC Resistance (DCR)	42Ohm Max
Q Factor @ Frequency	30 @ 790kHz
Self Resonant Frequency	6MHz
Core Material	Ferrite
Shielding	Unshielded
Mounting Type	Through Hole
Package Type	Axial
Physical Dimensions	0.095" Dia x 0.250" L (2.41mm x 6.35mm)
Operating Temperature Range	-55°C to 105°C

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across all electrical and mechanical parameters. The following criteria establish direct substitutability:

Inductance value: 470µH with ±10% tolerance
Current rating: 36mA minimum
DC resistance: 42Ohm maximum
Q factor: 30 @ 790kHz
Self resonant frequency: 6MHz
Core material: Ferrite
Shielding configuration: Unshielded
Mounting type: Through hole axial
Physical dimensions: 0.095" Dia x 0.250" L (2.41mm x 6.35mm)
Operating temperature: -55°C to 105°C

All substitute parts listed maintain these specifications identically. Variations exist only in manufacturer, series designation, packaging format, product status, and regulatory compliance certifications.

Parameter Comparison

Parameter	IM02EB471K (Vishay Dale)	1025R-84K (Delevan)	ER1025-84KM (API Delevan)	ER1025-84KP (API Delevan)	ER1025-84KR (API Delevan)
Inductance	470µH	470µH	470µH	470µH	470µH
Tolerance	±10%	±10%	±10%	±10%	±10%
Current Rating	36mA	36mA	36mA	36mA	36mA
DC Resistance	42Ohm Max	42Ohm Max	42Ohm Max	42Ohm Max	42Ohm Max
Q @ 790kHz	30	30	30	30	30
Self Resonant Frequency	6MHz	6MHz	6MHz	6MHz	6MHz
Core Material	Ferrite	Ferrite	Ferrite	Ferrite	Ferrite
Shielding	Unshielded	Unshielded	Unshielded	Unshielded	Unshielded
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package Type	Axial	Axial	Axial	Axial	Axial
Physical Dimensions	0.095" Dia x 0.250" L	0.095" Dia x 0.250" L	0.095" Dia x 0.250" L	0.095" Dia x 0.250" L	0.095" Dia x 0.250" L
Operating Temperature	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Product Status	Obsolete	Active	Active	Active	Active
Packaging Format	Not specified	Cut Tape (CT)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Non-compliant	RoHS Non-compliant	RoHS Non-compliant

Engineering Selection Recommendations

All substitute parts provide electrical and mechanical equivalence to the IM02EB471K. Selection between substitute options depends on specific application requirements:

1025R-84K (Delevan): Active product status with ROHS3 compliance. Cut tape packaging suitable for manual assembly or lower-volume production runs. Recommended for applications requiring RoHS3 certification.

ER1025-84KM, ER1025-84KP, ER1025-84KR (API Delevan Inc.): Active product status with tape and reel packaging optimized for automated assembly processes. These variants differ only in packaging configuration and reel specifications. RoHS non-compliant status requires evaluation against application regulatory requirements. Recommended for high-volume automated production environments where RoHS3 compliance is not mandated.

Product status transition from obsolete (IM02EB471K) to active status across all substitute options ensures long-term supply chain stability and continued manufacturing support.

Frequently Asked Questions (FAQ)

Q: Are all listed substitute parts electrically identical to the IM02EB471K?

A: Yes. All substitute parts maintain identical inductance (470µH ±10%), current rating (36mA), DC resistance (42Ohm max), Q factor (30 @ 790kHz), self resonant frequency (6MHz), core material (ferrite), shielding (unshielded), and operating temperature range (-55°C to 105°C).

Q: What is the difference between 1025R-84K and the ER1025 series parts?

A: The 1025R-84K is supplied in cut tape packaging and maintains ROHS3 compliance. The ER1025 series (ER1025-84KM, ER1025-84KP, ER1025-84KR) are supplied in tape and reel format and are RoHS non-compliant. All three ER1025 variants are electrically identical; differences are limited to reel specifications and packaging configuration.

Q: Can I use these substitute parts in existing PCB designs without modification?

A: Yes. All substitute parts share identical through-hole axial mounting configuration and physical dimensions (0.095" Dia x 0.250" L). No PCB layout or footprint changes are required.

Q: Which substitute part should I select for new production designs?

A: Selection depends on regulatory requirements and manufacturing process. For RoHS3-compliant applications, use 1025R-84K. For high-volume automated assembly without RoHS3 requirements, any ER1025 variant (ER1025-84KM, ER1025-84KP, ER1025-84KR) is suitable. All options provide active product status and assured long-term availability.

Q: Are there packaging quantity differences between substitute options?

A: Yes. Packaging format differs: 1025R-84K uses cut tape; ER1025-84KM, ER1025-84KP, and ER1025-84KR use tape and reel. Reel specifications may vary between ER1025 variants. Confirm specific packaging quantities with supplier documentation.

Q: What is the operating temperature range for all substitute parts?

A: All parts, including the original IM02EB471K and all substitutes, operate across -55°C to 105°C.

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