IM02EB150K Equivalent & Substitute Parts

Part Overview

The IM02EB150K is a 15 µH unshielded molded inductor manufactured by Vishay Dale, rated for 150 mA with a maximum DC resistance of 2.8 Ohm. This through-hole axial component operates across -55°C to 105°C and is classified as obsolete. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Inductance	15 µH
Tolerance	±10%
Current Rating	150 mA
DC Resistance (Max)	2.8 Ohm
Core Material	Iron
Shielding	Unshielded
Mounting Type	Through Hole
Package	Axial
Operating Temperature	-55°C to 105°C
Q @ 2.5 MHz	40
Self Resonant Frequency	35 MHz

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: inductance value (15 µH), tolerance (±10%), core material (iron), shielding type (unshielded), mounting configuration (through-hole axial), physical dimensions (0.095" Dia x 0.250" L), and operating temperature range (-55°C to 105°C).

Current rating and DC resistance are secondary compatibility factors. Parts with current ratings equal to or exceeding 150 mA and DC resistance at or below 2.8 Ohm maximum are acceptable substitutes. Frequency characteristics (Q @ 2.5 MHz and self-resonant frequency) must remain consistent with the original specification.

All substitute parts listed are from API Delevan Inc., an active manufacturer, and maintain electrical and mechanical compatibility with the IM02EB150K.

Parameter Comparison

Parameter	IM02EB150K (Vishay Dale)	1025R-48K (API Delevan)	ER1025-48KM (API Delevan)	ER1025-48KP (API Delevan)	ER1025-48KR (API Delevan)
Inductance	15 µH	15 µH	15 µH	15 µH	15 µH
Tolerance	±10%	±10%	±10%	±10%	±10%
Current Rating (mA)	150	157	150	150	150
DC Resistance (Max)	2.8 Ohm	2.8 Ohm	2.8 Ohm	2.8 Ohm	2.8 Ohm
Core Material	Iron	Iron	Iron	Iron	Iron
Shielding	Unshielded	Unshielded	Unshielded	Unshielded	Unshielded
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package	Axial	Axial	Axial	Axial	Axial
Size / Dimension	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
Q @ 2.5 MHz	40	45	40	40	40
Self Resonant Frequency	35 MHz	35 MHz	35 MHz	35 MHz	35 MHz
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Non-Compliant	RoHS Non-Compliant	RoHS Non-Compliant
Packaging	Bulk	Bulk	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

1025R-48K is the direct functional equivalent with active product status and ROHS3 compliance. Current rating of 157 mA exceeds the 150 mA requirement, providing operational margin. This part is available in bulk packaging and maintains all electrical and mechanical specifications.

ER1025-48KM, ER1025-48KP, and ER1025-48KR are manufacturer-recommended alternatives from API Delevan's active ER1025 series. All three maintain identical electrical performance to the original IM02EB150K. These parts are supplied in tape and reel packaging, suitable for automated assembly processes. ER1025-48KR is qualified to MIL-PRF-39010/09 military standard specifications.

RoHS compliance status differs between substitute options. The 1025R-48K maintains ROHS3 compliance matching the original part. The ER1025 series variants (ER1025-48KM, ER1025-48KP, ER1025-48KR) are RoHS non-compliant and should be selected only when military qualification or specific packaging requirements override environmental compliance mandates.

Frequently Asked Questions (FAQ)

Q: Can 1025R-48K directly replace IM02EB150K in existing designs? A: Yes. The 1025R-48K maintains identical inductance (15 µH), tolerance (±10%), DC resistance (2.8 Ohm max), core material (iron), shielding (unshielded), mounting type (through-hole), package configuration (axial), physical dimensions (0.095" Dia x 0.250" L), and operating temperature range (-55°C to 105°C). The 157 mA current rating exceeds the 150 mA requirement.

Q: What is the difference between 1025R-48K and ER1025 series parts? A: The 1025R-48K is supplied in bulk packaging with ROHS3 compliance. The ER1025 series (ER1025-48KM, ER1025-48KP, ER1025-48KR) are supplied in tape and reel packaging and are RoHS non-compliant. Electrical specifications are identical. ER1025-48KR includes military qualification to MIL-PRF-39010/09.

Q: Does packaging type affect electrical performance? A: No. Bulk and tape & reel packaging formats do not alter electrical characteristics. Packaging selection depends on assembly process requirements and inventory management practices.

Q: Are all substitute parts pin-compatible with IM02EB150K? A: Yes. All substitute parts share identical through-hole axial configuration with matching physical dimensions (0.095" Dia x 0.250" L), ensuring direct PCB footprint compatibility.

Q: Which substitute should be selected for RoHS-compliant applications? A: The 1025R-48K is the only substitute maintaining ROHS3 compliance equivalent to the original IM02EB150K.

Q: What is the significance of the Q factor difference in 1025R-48K? A: The 1025R-48K exhibits Q of 45 @ 2.5 MHz compared to the original 40 @ 2.5 MHz. This represents improved efficiency at the test frequency and does not compromise compatibility or circuit performance.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message