ISC1210EB4R7K Equivalent & Substitute Parts

Part Overview

The ISC1210EB4R7K is a 4.7 µH shielded drum core wirewound inductor manufactured by Vishay Dale, rated for 220 mA continuous current with a maximum DC resistance of 1.25 Ohm. This surface mount component operates across the temperature range of -55°C to 125°C and is designed for applications requiring controlled electromagnetic shielding in compact 1210 (3225 Metric) form factors.

The part is currently in active production status with 899 pieces available in bulk packaging. Equivalent and substitute parts are identified based on matching electrical specifications including inductance value, current rating, tolerance, and core material compatibility within the same package footprint.

Substiute Parts

ISC1210EB4R7K

Vishay DaleIn Stock: 979ISC1210EB4R7K Datasheet

Current PartRFQ

74476404

Würth ElektronikIn Stock: 401474476404 Datasheet

MFR RecommendedRFQ

B82422T1472K000

EPCOS - TDK ElectronicsIn Stock: 25485B82422T1472K000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ISC1210EB4R7K are qualified based on the following electrical and mechanical parameters:

Primary Matching Criteria:

• Inductance value: 4.7 µH (±10% tolerance maintained)
• Current rating: 220 mA minimum
• Package footprint: 1210 (3225 Metric) surface mount
• Mounting type: Surface mount compatible
• Compliance: ROHS3 compliant

Secondary Considerations:

• DC resistance within acceptable operating limits
• Operating temperature range coverage
• Core material type (iron powder or ferrite)
• Shielding configuration (shielded or unshielded)

The identified substitute parts maintain electrical equivalence in inductance and current handling while accommodating variations in DC resistance, core material, and shielding characteristics. These variations are permissible within the functional requirements of the 4.7 µH inductor category.

Parameter Comparison

Engineering Selection Recommendations

ISC1210EB4R7K (Vishay Dale - Primary Part)

This shielded inductor is the specified component with iron powder core construction. It provides the lowest DC resistance at 1.25 Ohm maximum and operates across the full temperature range of -55°C to 125°C. Selection of this part is appropriate for applications where electromagnetic shielding is a design requirement and the extended temperature range is necessary.

74476404 (Würth Elektronik - Substitute)

This unshielded ferrite core inductor is electrically equivalent in inductance and current rating. The DC resistance increases to 1.5 Ohm maximum, and the operating temperature range is reduced to -40°C to 105°C. This part is suitable for applications where shielding is not critical and operating temperatures remain within the specified range. Würth Elektronik WE-GF series components maintain ROHS3 compliance and are available in Tape & Reel packaging.

B82422T1472K000 (EPCOS - TDK Electronics - Substitute)

This unshielded ferrite core inductor maintains electrical equivalence with 4.7 µH inductance and 220 mA current rating. DC resistance is 1.5 Ohm maximum. The operating temperature range matches the primary part at -55°C to 125°C. This component carries AEC-Q200 automotive qualification and is available in Cut Tape packaging with 25,439 pieces in stock. Selection is appropriate for automotive and extended temperature applications where shielding is not required.

All three parts maintain ROHS3 compliance and are in active production status.

Frequently Asked Questions (FAQ)

Q: Can the 74476404 or B82422T1472K000 be used as direct replacements for the ISC1210EB4R7K?

A: Both parts are electrically equivalent in inductance (4.7 µH) and current rating (220 mA) within the ±10% tolerance specification. However, the substitute parts are unshielded ferrite core inductors compared to the shielded iron powder core of the primary part. Direct substitution is permissible only if electromagnetic shielding is not a circuit requirement. The increased DC resistance (1.5 Ohm vs. 1.25 Ohm) must be evaluated for thermal and efficiency impacts in the application.

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

A: Shielded inductors (ISC1210EB4R7K) contain a magnetic shield that confines the electromagnetic field, reducing coupling to adjacent circuit components. Unshielded inductors (74476404, B82422T1472K000) allow the magnetic field to extend into surrounding space. Shielding is necessary in high-density layouts or noise-sensitive applications. Unshielded designs typically offer lower cost and smaller physical profiles.

Q: Are there temperature range limitations when substituting parts?

A: The 74476404 operates from -40°C to 105°C, which is narrower than the primary part and the B82422T1472K000 (-55°C to 125°C). If the application requires operation below -40°C or above 105°C, the 74476404 is not suitable. The B82422T1472K000 matches the full temperature range of the ISC1210EB4R7K.

Q: What does the increased DC resistance mean for circuit performance?

A: The substitute parts have a maximum DC resistance of 1.5 Ohm compared to 1.25 Ohm for the primary part. This 0.25 Ohm increase results in higher resistive losses at rated current (220 mA), generating additional heat. For applications sensitive to power dissipation or thermal management, this difference must be calculated and evaluated against design margins.

Q: Are all three parts available in the same package footprint?

A: Yes, all three parts use the 1210 (3225 Metric) surface mount package with compatible footprints. However, packaging formats differ: ISC1210EB4R7K is supplied in Bulk, 74476404 in Tape & Reel, and B82422T1472K000 in Cut Tape. These packaging differences affect handling and assembly processes but do not impact electrical performance or PCB placement.

Q: Does the B82422T1472K000 AEC-Q200 rating provide additional assurance?

A: AEC-Q200 is an automotive qualification standard that specifies reliability and quality requirements for passive components. This certification indicates the part has undergone additional testing for automotive applications. If the application is automotive or requires automotive-grade reliability, the B82422T1472K000 provides documented compliance. Non-automotive applications do not require this certification.