IMS05WDSHR82K40 Equivalent & Substitute Parts

Part Overview

The IMS05WDSHR82K40 is a 820 nH shielded inductor manufactured by Vishay Dale, designed for through-hole applications requiring fixed inductance with controlled DC resistance characteristics. This axial component operates at a maximum current rating of 870 mA with a DC resistance of 460 mOhm maximum, making it suitable for filtering, energy storage, and signal conditioning circuits in compact form factors.

The IMS05WDSHR82K40 remains available with 851 pieces in current inventory as new original stock. Substitute parts are identified based on matching inductance value, shielded construction, and through-hole packaging compatibility, with allowable variations in current rating and DC resistance within acceptable operating parameters for equivalent circuit performance.

Substiute Parts

IMS05WDSHR82K40

Vishay DaleIn Stock: 948IMS05WDSHR82K40 Datasheet

Current PartRFQ

IMS5SWDBHR82K65

Vishay DaleIn Stock: 699IMS5SWDBHR82K65 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IMS05WDSHR82K40 are qualified based on the following criteria:

Primary Matching Parameters:

• Inductance value: 820 nH (exact match required)
• Construction: Shielded inductor configuration
• Package: Axial through-hole form factor
• Manufacturer: Vishay Dale product line

Allowable Variation Parameters:

• Current rating: May be lower than the main part (600 mA acceptable for IMS5SWDBHR82K65)
• DC resistance: May be higher than the main part (590 mOhm acceptable for IMS5SWDBHR82K65)

The IMS5SWDBHR82K65 qualifies as a substitute because it maintains the core inductance specification and shielded axial construction while operating within the same product family. The reduced current rating and increased DC resistance represent trade-offs acceptable in applications where the main part's performance envelope exceeds circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

Selection between IMS05WDSHR82K40 and IMS5SWDBHR82K65 depends on circuit current requirements and thermal dissipation constraints:

Use IMS05WDSHR82K40 when:

• Circuit peak or RMS current approaches or exceeds 600 mA
• Minimizing DC resistance losses is critical to system efficiency
• Thermal budget permits higher power dissipation margins

Use IMS5SWDBHR82K65 when:

• Circuit current remains below 600 mA maximum rating
• DC resistance increase of 130 mOhm is acceptable for the application
• Molded shielded construction meets electromagnetic compatibility requirements
• Component availability or procurement lead time favors the substitute

Both parts maintain identical inductance performance and shielded axial through-hole construction, ensuring functional equivalence in filtering and energy storage applications within their respective current ratings.

Frequently Asked Questions (FAQ)

Q: Can IMS5SWDBHR82K65 replace IMS05WDSHR82K40 in all applications?

A: No. The substitute part has a maximum current rating of 600 mA compared to 870 mA for the main part. Substitution is valid only when circuit operating current remains below 600 mA. Exceeding this rating will cause inductor saturation and performance degradation.

Q: What is the impact of the 130 mOhm increase in DC resistance?

A: The IMS5SWDBHR82K65 exhibits 590 mOhm maximum DC resistance versus 460 mOhm for IMS05WDSHR82K40. At 600 mA, this represents approximately 35.4 mW additional power dissipation. Thermal analysis is required if the application operates continuously at maximum current.

Q: Are both parts compatible with standard through-hole PCB layouts?

A: Yes. Both IMS05WDSHR82K40 and IMS5SWDBHR82K65 use axial through-hole packaging and are mechanically compatible with identical PCB footprints and lead spacing.

Q: What is the difference between shielded and shielded molded construction?

A: Both constructions provide electromagnetic shielding to minimize radiated emissions and susceptibility. The molded variant (IMS5SWDBHR82K65) uses an encapsulation process that may offer improved mechanical robustness and environmental protection compared to standard shielded construction.

Q: How do I verify which part is appropriate for my circuit?

A: Compare your circuit's maximum operating current against each part's current rating. If current remains below 600 mA, either part is functionally equivalent. If current exceeds 600 mA, use only IMS05WDSHR82K40. Verify DC resistance losses are acceptable for your thermal budget in both cases.