IMS05EB6R8K Equivalent & Substitute Parts

Part Overview

The IMS05EB6R8K is a 6.8 µH shielded molded inductor manufactured by Vishay Dale, rated for 280 mA with a maximum DC resistance of 1.02Ohm. 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.

Substiute Parts

IMS05EB6R8K

Vishay DaleIn Stock: 958IMS05EB6R8K Datasheet

Current PartRFQ

1641R-682K

API Delevan Inc.In Stock: 16681641R-682K Datasheet

DirectRFQ

9250A-682-RC

Bourns Inc.In Stock: 8879250A-682-RC Datasheet

MFR RecommendedRFQ

ER1641-682KM

DelevanIn Stock: 1222ER1641-682KM Datasheet

MFR RecommendedRFQ

ER1641-682KP

API Delevan Inc.In Stock: 811ER1641-682KP Datasheet

MFR RecommendedRFQ

ER1641-682KR

API Delevan Inc.In Stock: 1119ER1641-682KR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IMS05EB6R8K is determined by the following critical parameters:

• Inductance Value: 6.8 µH (±10% tolerance)
• Current Rating: Minimum 280 mA
• DC Resistance: 1.02Ohm Max
• Shielding: Shielded configuration
• Mounting Type: Through Hole Axial
• Physical Dimensions: 0.162" Dia x 0.410" L (4.11mm x 10.41mm)
• Operating Temperature Range: -55°C to 105°C minimum
• Q Factor: 50 @ 7.9MHz
• Self Resonant Frequency: 55MHz

All substitute parts listed maintain these core electrical and mechanical specifications, ensuring functional equivalence in circuit applications. Variations in core material, packaging format, and compliance certifications are noted but do not affect electrical substitutability when parameters remain within specification.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 1641R-682K (API Delevan Inc.)

The 1641R-682K is the preferred substitute for the obsolete IMS05EB6R8K. This part maintains all critical electrical parameters, achieves ROHS3 compliance matching the original specification, and is available in active production status with 1656 units in stock. The current rating of 285 mA exceeds the original 280 mA requirement, providing additional design margin.

Secondary Recommendation: 9250A-682-RC (Bourns Inc.)

The 9250A-682-RC offers an extended operating temperature range of -55°C to 125°C, compared to the original -55°C to 105°C specification. This part maintains ROHS3 compliance and all electrical parameters. Selection of this part is appropriate for applications requiring enhanced thermal performance or future design flexibility.

Alternative Options: ER1641-682KM and ER1641-682KP (Delevan)

Both ER1641 series parts maintain electrical equivalence but are classified as RoHS non-compliant. These parts are suitable only for applications where RoHS compliance is not a regulatory requirement. ER1641-682KM and ER1641-682KP are available in Tape & Reel packaging, appropriate for high-volume automated assembly.

Not Recommended: ER1641-682KR (API Delevan Inc.)

The ER1641-682KR features an unshielded configuration, which differs from the shielded requirement of the original IMS05EB6R8K. This part is not suitable as a direct substitute for applications requiring electromagnetic shielding.

Frequently Asked Questions (FAQ)

Q: Can the 1641R-682K directly replace the IMS05EB6R8K in existing designs?

A: Yes. The 1641R-682K maintains identical inductance, tolerance, DC resistance, shielding, physical dimensions, and operating temperature range. The higher current rating (285 mA vs. 280 mA) provides additional margin without affecting circuit operation.

Q: What is the difference between shielded and unshielded inductors?

A: Shielded inductors contain electromagnetic shielding to minimize radiated interference and susceptibility to external magnetic fields. The ER1641-682KR is unshielded and is not suitable for applications requiring the shielded performance of the original IMS05EB6R8K.

Q: Does packaging format affect electrical performance?

A: No. The substitute parts are available in Bulk or Tape & Reel (TR) packaging formats. Packaging affects only handling, storage, and assembly processes. Electrical specifications remain identical regardless of packaging format.

Q: Why do some substitutes have RoHS non-compliant status?

A: RoHS compliance is a regulatory requirement for products sold in specific markets. The ER1641 series parts are RoHS non-compliant and are suitable only for applications or regions where RoHS compliance is not mandated. For new designs subject to RoHS regulations, select ROHS3-compliant alternatives.

Q: Is the extended temperature range of the 9250A-682-RC beneficial?

A: The 9250A-682-RC operates to 125°C versus 105°C for the original part. This extended range provides additional design margin for applications operating at elevated temperatures or for future design flexibility, with no performance penalty.

Q: Are all substitute parts available in equivalent quantities?

A: Inventory levels vary by part number and supplier. The 1641R-682K offers the highest current availability at 1656 units. Confirm specific availability with your component supplier for production requirements.