IMS05EB102K Equivalent & Substitute Parts

Part Overview

The IMS05EB102K is a 1 mH shielded molded inductor manufactured by Vishay Dale, rated for 70 mA maximum current with a DC resistance of 17.5Ohm maximum. This through-hole axial component operates across a temperature range of -55°C to 105°C and is classified as obsolete. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary to maintain design continuity and ensure ongoing component availability for production and repair applications.

Substiute Parts

IMS05EB102K

Vishay DaleIn Stock: 735IMS05EB102K Datasheet

Current PartRFQ

9250A-105-RC

Bourns Inc.In Stock: 29869250A-105-RC Datasheet

MFR RecommendedRFQ

ER1641-105KM

API Delevan Inc.In Stock: 1114ER1641-105KM Datasheet

MFR RecommendedRFQ

ER1641-105KP

API Delevan Inc.In Stock: 838ER1641-105KP Datasheet

MFR RecommendedRFQ

ER1641-105KR

API Delevan Inc.In Stock: 818ER1641-105KR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IMS05EB102K is determined by strict equivalence across the following critical parameters:

• Inductance Value: 1 mH (exact match required)
• Tolerance: ±10% (exact match required)
• Current Rating: 70 mA (exact match required)
• DC Resistance: 17.5Ohm Max (exact match required)
• Shielding Configuration: Shielded (required for electromagnetic compatibility)
• Mounting Type: Through Hole Axial (required for PCB compatibility)
• Physical Dimensions: 0.162" Dia x 0.410" L (required for mechanical fit)
• Core Material: Ferrite (required for performance characteristics)
• Operating Temperature Range: Minimum -55°C ~ 105°C (substitute must meet or exceed)

The 9250A-105-RC from Bourns Inc. qualifies as a direct substitute with identical electrical specifications and extended operating temperature range (-55°C ~ 125°C). The ER1641-105KM and ER1641-105KP from API Delevan Inc. are functionally equivalent with matching electrical parameters. The ER1641-105KR is an unshielded variant and does not qualify as a substitute due to shielding configuration mismatch.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 9250A-105-RC (Bourns Inc.)

The 9250A-105-RC is the preferred substitute for the obsolete IMS05EB102K. This part maintains complete electrical and mechanical equivalence while offering extended operating temperature capability (-55°C ~ 125°C versus -55°C ~ 105°C). The 9250A-105-RC is ROHS3 compliant and carries active product status, ensuring long-term availability and supply chain stability. Packaging is available in bulk format.

Secondary Recommendations: ER1641-105KM and ER1641-105KP (API Delevan Inc.)

Both ER1641-105KM and ER1641-105KP from API Delevan Inc. provide functional equivalence with identical electrical specifications and physical dimensions. These parts are active products with established supply availability. ER1641-105KM is packaged in Tape & Reel format with 1021 units in stock, while ER1641-105KP is also Tape & Reel packaged with 777 units in stock. Both parts are RoHS non-compliant; this status must be evaluated against application requirements and regulatory obligations.

Not Recommended: ER1641-105KR (API Delevan Inc.)

The ER1641-105KR does not qualify as a substitute due to its unshielded configuration. The original IMS05EB102K is specified as shielded, and substitution with an unshielded variant introduces electromagnetic compatibility risk and may compromise circuit performance.

Frequently Asked Questions (FAQ)

Q: Can the ER1641-105KR be used as a substitute despite being unshielded?

A: No. The IMS05EB102K is specified as shielded, and the ER1641-105KR is unshielded. Shielding provides electromagnetic isolation critical to circuit performance. Substitution with an unshielded variant violates the electrical specification and introduces EMI risk.

Q: What is the difference between the ER1641-105KM and ER1641-105KP?

A: Both parts are electrically and mechanically identical. The designation difference reflects packaging or manufacturing lot variations. Both are Tape & Reel packaged and carry identical electrical specifications. Selection between these two is based on inventory availability and procurement preference.

Q: Does the extended temperature range of the 9250A-105-RC affect compatibility?

A: No. The 9250A-105-RC operates from -55°C ~ 125°C, which exceeds the original specification of -55°C ~ 105°C. Extended temperature capability does not compromise compatibility; it provides additional operational margin.

Q: Are there compliance differences between the recommended substitutes?

A: Yes. The 9250A-105-RC is ROHS3 compliant, while ER1641-105KM and ER1641-105KP are RoHS non-compliant. Applications subject to RoHS regulations must use the 9250A-105-RC. Applications without RoHS requirements may use any of the three recommended parts.

Q: Will the substitute parts fit the existing PCB layout?

A: Yes. All recommended substitutes maintain identical physical dimensions (0.162" Dia x 0.410" L) and through-hole axial mounting configuration. No PCB layout modifications are required.

Q: What is the inventory status of each substitute?

A: 9250A-105-RC: 2943 units in stock; ER1641-105KM: 1021 units in stock; ER1641-105KP: 777 units in stock. All substitutes are available for immediate procurement.