ISC1210SY3R3J Equivalent & Substitute Parts

Part Overview

The ISC1210SY3R3J is a 3.3 µH shielded drum core wirewound inductor manufactured by Vishay Dale, designed for surface mount applications in the 1210 (3225 Metric) package. This component operates at 270 mA maximum current with 1.1 Ohm maximum DC resistance and is rated for -55°C to 125°C operating temperature. The part is currently active in production. Substitute parts are necessary when the original component is unavailable, when design requirements shift toward RoHS3 compliance, or when alternative core materials better suit specific circuit performance characteristics.

Substiute Parts

ISC1210SY3R3J

Vishay DaleIn Stock: 730ISC1210SY3R3J Datasheet

Current PartRFQ

NLV32T-3R3J-EF

TDK CorporationIn Stock: 111696NLV32T-3R3J-EF Datasheet

MFR RecommendedRFQ

NLV32T-3R3J-PF

TDK CorporationIn Stock: 29492NLV32T-3R3J-PF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ISC1210SY3R3J is determined by the following critical parameters:

• Inductance Value: 3.3 µH (exact match required)
• Tolerance: ±5% (exact match required)
• Package: 1210 (3225 Metric) surface mount (exact match required)
• Current Rating: Minimum 260 mA (substitute must support circuit current demands)
• DC Resistance: Maximum 1.2 Ohm (acceptable variance from 1.1 Ohm max)
• Operating Temperature Range: Minimum -40°C to 105°C (acceptable for most applications; original supports extended range to -55°C)
• Q Factor & Self Resonant Frequency: 30 @ 7.96 MHz and 60 MHz (maintained across substitutes)

The substitute parts NLV32T-3R3J-EF and NLV32T-3R3J-PF meet these criteria. Both use ferrite core material instead of iron powder, resulting in unshielded construction. This core material change does not affect the electrical parameters critical to substitution but alters electromagnetic field containment characteristics.

Parameter Comparison

Engineering Selection Recommendations

NLV32T-3R3J-EF is the primary substitute for new designs and production applications. This part maintains active product status, achieves ROHS3 compliance, and is available in standard Tape & Reel packaging. The 10 mA reduction in current rating (260 mA vs. 270 mA) is acceptable for circuits designed within the 260 mA specification. The unshielded ferrite core construction requires circuit-level evaluation if electromagnetic field containment is critical to system performance.

NLV32T-3R3J-PF is designated "Not For New Designs" and should be used only for legacy system maintenance or repair applications where existing inventory exists. This part is available in Cut Tape and Digi-Reel packaging formats, suitable for lower-volume or manual assembly operations.

Both TDK substitutes operate within the reduced temperature range of -40°C to 105°C, which is acceptable for most commercial and industrial applications but does not extend to the original part's -55°C lower limit. Applications requiring operation below -40°C must retain the ISC1210SY3R3J.

Frequently Asked Questions (FAQ)

Q: Can NLV32T-3R3J-EF replace ISC1210SY3R3J in all applications?

A: Electrical substitution is valid for inductance value, tolerance, and frequency characteristics. The unshielded ferrite core differs from the shielded iron powder core. Applications sensitive to electromagnetic field radiation or susceptible to external field coupling require circuit-level analysis. Current rating is 260 mA versus 270 mA; verify circuit current does not exceed 260 mA. Operating temperature range is -40°C to 105°C; applications requiring -55°C operation must use the original part.

Q: What is the difference between NLV32T-3R3J-EF and NLV32T-3R3J-PF?

A: Both parts are electrically identical with 3.3 µH inductance, ±5% tolerance, and identical electrical performance. The difference is packaging format and product status. NLV32T-3R3J-EF uses Tape & Reel (TR) packaging and is active for new designs. NLV32T-3R3J-PF uses Cut Tape (CT) and Digi-Reel® packaging and is designated "Not For New Designs," suitable only for legacy applications.

Q: Why is the substitute part unshielded while the original is shielded?

A: The substitute uses ferrite core material, which provides different electromagnetic properties than iron powder. Ferrite cores in this inductor class are typically unshielded. Shielding effectiveness depends on application requirements. Evaluate circuit layout and proximity to sensitive components to determine if unshielded operation is acceptable.

Q: Is the 0.1 Ohm increase in DC resistance (1.1 to 1.2 Ohm max) significant?

A: The 0.1 Ohm increase represents approximately 9% higher maximum resistance. For circuits where inductor losses directly impact efficiency or thermal performance, calculate power dissipation at operating current. At 260 mA, maximum dissipation increases from 74.2 mW to 81.2 mW. Evaluate thermal budget and circuit performance impact.

Q: Can I use these substitutes in designs requiring RoHS compliance?

A: Yes. Both NLV32T-3R3J-EF and NLV32T-3R3J-PF are ROHS3 compliant. The original ISC1210SY3R3J is RoHS non-compliant. If RoHS3 compliance is a design requirement, use TDK substitutes.

Q: What packaging quantities are available?

A: ISC1210SY3R3J is supplied in Tape & Reel (TR) format. NLV32T-3R3J-EF is supplied in Tape & Reel (TR) format. NLV32T-3R3J-PF is supplied in Cut Tape (CT) and Digi-Reel® format. Verify packaging format matches assembly equipment and production volume requirements.