ISC1210ER4R7J Equivalent & Substitute Parts

Part Overview

The ISC1210ER4R7J 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 in 1210 (3225 Metric) package is designed for applications requiring controlled electromagnetic shielding and stable inductance performance across the operating temperature range of -55°C to 125°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance can be maintained within the specified parameter tolerances while meeting the same mechanical and environmental requirements. Alternative inductors may be necessary due to inventory availability, supply chain optimization, or specific application requirements for unshielded core configurations.

Substiute Parts

ISC1210ER4R7J

Vishay DaleIn Stock: 986ISC1210ER4R7J Datasheet

Current PartRFQ

NLV32T-4R7J-EF

TDK CorporationIn Stock: 6026NLV32T-4R7J-EF Datasheet

MFR RecommendedRFQ

NLV32T-4R7J-EFD

TDK CorporationIn Stock: 3064NLV32T-4R7J-EFD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ISC1210ER4R7J are qualified based on the following critical parameters that determine functional equivalence:

Electrical Parameters (Must Match):

• Inductance value: 4.7 µH ±5%
• Current rating: 220 mA minimum
• Inductance tolerance: ±5%
• Frequency test point: 7.96 MHz

Mechanical Parameters (Must Match):

• Package / Case: 1210 (3225 Metric)
• Mounting type: Surface Mount
• Physical dimensions: 0.126" L x 0.098" W (3.20mm x 2.49mm to 2.50mm)
• Height seated (max): 0.094" to 0.095"

Environmental & Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• Packaging: Tape & Reel (TR)

Allowable Variations:

• DC Resistance: Up to 1.5 Ohm maximum (original: 1.25 Ohm max)
• Operating temperature range: -40°C ~ 105°C acceptable (original: -55°C ~ 125°C)
• Core material: Ferrite acceptable as substitute for Iron Powder
• Shielding: Unshielded acceptable as substitute for Shielded

The TDK Corporation NLV32T series parts meet all critical electrical and mechanical requirements while offering alternative core material and shielding configurations.

Parameter Comparison

Engineering Selection Recommendations

ISC1210ER4R7J (Vishay Dale - Original)

Select this part when shielded core construction is required for electromagnetic interference mitigation. The iron powder core material provides the specified shielding characteristics. This part supports the extended operating temperature range of -55°C to 125°C, suitable for automotive and industrial applications with extreme temperature requirements. Product status is active with full ROHS3 compliance.

NLV32T-4R7J-EF (TDK Corporation)

This unshielded ferrite core inductor meets all critical electrical specifications with equivalent inductance, current rating, and Q factor at the test frequency. The ferrite core material and unshielded configuration reduce electromagnetic shielding but maintain electrical performance within tolerance. Operating temperature range is -40°C to 105°C. ROHS3 compliant with REACH affected status. Select when shielding is not a circuit requirement and cost optimization is a consideration.

NLV32T-4R7J-EFD (TDK Corporation)

This variant is functionally identical to the NLV32T-4R7J-EF with the addition of AEC-Q200 automotive qualification rating. Operating temperature range is -40°C to 105°C. ROHS3 compliant with REACH affected status. Select for automotive applications requiring AEC-Q200 certification where unshielded ferrite core construction is acceptable.

Frequently Asked Questions (FAQ)

Q: Can NLV32T-4R7J-EF or NLV32T-4R7J-EFD be used as direct replacements for ISC1210ER4R7J?

A: Yes, within specific application constraints. All three parts share identical inductance (4.7 µH ±5%), current rating (220 mA), and package dimensions (1210 / 3225 Metric). The primary differences are core material (iron powder vs. ferrite), shielding (shielded vs. unshielded), and operating temperature range (-55°C to 125°C vs. -40°C to 105°C). Substitution is valid when the circuit does not require shielded core performance and operates within the -40°C to 105°C temperature window.

Q: What is the impact of the 0.25 Ohm increase in DC resistance for the TDK substitutes?

A: The TDK NLV32T series parts specify a maximum DC resistance of 1.5 Ohm compared to 1.25 Ohm for the ISC1210ER4R7J. This 0.25 Ohm difference results in increased resistive losses in the inductor. For 220 mA operation, this represents an additional power dissipation of approximately 12 mW. Evaluate circuit thermal performance and efficiency requirements before substitution.

Q: Are there temperature range limitations when substituting with TDK parts?

A: Yes. The TDK NLV32T-4R7J-EF and NLV32T-4R7J-EFD operate from -40°C to 105°C, compared to the ISC1210ER4R7J range of -55°C to 125°C. If the application requires operation below -40°C or above 105°C, the Vishay Dale original part is required. Verify the actual operating temperature envelope of your circuit before selecting a substitute.

Q: What is the difference between NLV32T-4R7J-EF and NLV32T-4R7J-EFD?

A: Both parts are electrically and mechanically identical. The NLV32T-4R7J-EFD includes AEC-Q200 automotive qualification certification, while the NLV32T-4R7J-EF does not. Select the EFD variant for automotive applications requiring AEC-Q200 compliance. Both are unshielded ferrite core inductors with identical electrical performance.

Q: Does the unshielded core of the TDK substitutes affect circuit performance?

A: Unshielded inductors generate external magnetic fields that can couple to nearby circuit traces and components. The ISC1210ER4R7J shielded design contains the magnetic field within the component. Substitution with unshielded parts is valid only when electromagnetic interference is not a design concern. Review circuit layout and adjacent component placement before substitution.

Q: Are all three parts available in Tape & Reel packaging?

A: Yes. The ISC1210ER4R7J, NLV32T-4R7J-EF, and NLV32T-4R7J-EFD are all supplied in Tape & Reel (TR) packaging suitable for automated assembly. All parts have MSL 1 (Unlimited) moisture sensitivity rating, requiring no special storage or handling precautions.