Equivalent & Substitute Parts for Vishay Dale IMS05EB470K

Part Overview

The Vishay Dale IMS05EB470K is an obsolete 47 µH shielded molded axial inductor featuring a ferrite core, rated at 195 mA with a maximum DC resistance of 2.11 Ohm. It is through-hole mounted and RoHS3 compliant. When a part is marked obsolete, sourcing direct replacements or certified substitutes that meet the required electrical and mechanical parameters becomes crucial for continued system function and regulatory compliance.

Key Parameters

Parameter	IMS05EB470K
Inductance	47 µH
Tolerance	±10%
Current Rating (Amps)	195 mA
Current - Saturation (Isat)	175 mA
Shielding	Shielded
DC Resistance (DCR)	2.11 Ohm Max
Q @ Freq	50 @ 2.5 MHz
Frequency - Self Resonant	27 MHz
Type	Molded
Material - Core	Ferrite
Operating Temperature	-55°C ~ 105°C
Mounting Type	Through Hole
Package / Case	Axial
Size / Dimension	0.162" Dia x 0.410" L (4.11mm x 10.41mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute components are selected strictly based on an exact match to key parameters including inductance (47 µH), tolerance (±10%), current rating (195 mA), DC resistance (2.11 Ohm max), form factor (axial, through-hole), dimensions (0.162" dia x 0.410" L), shielding status, type, core material, and RoHS conformity when required. Only parts conforming to these parameters are considered suitable substitutes or equivalents.

Parameter Comparison

Parameter	IMS05EB470K (Vishay Dale)	9250A-473-TR-RC (Bourns Inc.)	ER1641-473KM (API Delevan)	ER1641-473KP (API Delevan)	ER1641-473KR (API Delevan)
Inductance	47 µH	47 µH	47 µH	47 µH	47 µH
Tolerance	±10%	±10%	±10%	±10%	±10%
Current Rating (Amps)	195 mA	195 mA	195 mA	195 mA	195 mA
Current - Saturation (Isat)	175 mA	175 mA	-	-	-
Shielding	Shielded	Shielded	Shielded	Shielded	Unshielded
DC Resistance (DCR)	2.11 Ohm Max	2.11 Ohm Max	2.11 Ohm Max	2.11 Ohm Max	2.11 Ohm Max
Q @ Freq	50 @ 2.5 MHz	50 @ 2.5 MHz	50 @ 2.5 MHz	50 @ 2.5 MHz	50 @ 2.5 MHz
Frequency - Self Resonant	27 MHz	27 MHz	27 MHz	27 MHz	27 MHz
Type	Molded	Molded	Molded	Molded	-
Material - Core	Ferrite	Ferrite	Ferrite	Ferrite	Ferrite
Operating Temperature	-55°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Axial	Axial	Axial	Axial	Axial
Size / Dimension	0.162" x 0.410"	0.162" x 0.410"	0.162" x 0.410"	0.162" x 0.410"	0.162" x 0.410"
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	RoHS non-compliant	RoHS non-compliant

Engineering Selection Recommendations

For applications requiring strict RoHS compliance, select only RoHS3 compliant parts such as Vishay Dale IMS05EB470K or Bourns Inc. 9250A-473-TR-RC. For non-RoHS restricted environments, API Delevan ER1641-473KM, ER1641-473KP, and ER1641-473KR may be used. Shielding should be matched to design requirements: use shielded models where electromagnetic interference performance must remain consistent, and account for unshielded alternatives only when shielding is not a functional specification.

Frequently Asked Questions (FAQ)

Q: What criteria are used to select a substitute for IMS05EB470K?
A: Substitution is based on matching inductance, tolerance, current rating, DC resistance, form factor (axial, through-hole), shielding status, type, core material, and compliance certifications.

Q: Is package compatibility relevant when substituting these inductors?
A: Yes. All listed substitutes share the axial, through-hole package with identical dimensions, ensuring mechanical interchangeability.

Q: Is RoHS compliance required for all substitute parts?
A: RoHS3 compliance is required only if the target application mandates it. Use 9250A-473-TR-RC (Bourns Inc.) for compliant applications.

Q: How does shielding affect the choice of substitute?
A: Select shielded substitutes if the original circuit depends on shielding for EMI management. If shielding is not critical, unshielded options match all other provided parameters.

Q: Are there differences in operating temperature among substitutes?
A: The substitutes match or exceed the IMS05EB470K's -55°C ~ 105°C range, with the 9250A-473-TR-RC offering an extended upper limit to 125°C. Ensure this parameter is acceptable for the intended application.

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