ISC1210BN3R3J Equivalent & Substitute Parts

Part Overview

The ISC1210BN3R3J 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 maintains performance across -55°C to 125°C. The part is currently active in production. Substitute parts become necessary when addressing supply constraints, packaging format requirements, or compliance specifications for new designs.

Key Parameters

Parameter	Value
Inductance	3.3 µH
Tolerance	±5%
Current Rating	270 mA
DC Resistance (Max)	1.1 Ohm
Core Type	Drum Core, Wirewound
Shielding	Shielded
Package	1210 (3225 Metric)
Operating Temperature Range	-55°C to 125°C
Q @ 7.96 MHz	30
Self Resonant Frequency	60 MHz
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution for the ISC1210BN3R3J is determined by the following critical parameters:

Inductance Value: 3.3 µH (exact match required)
Tolerance: ±5% (exact match required)
Package: 1210 (3225 Metric) (exact match required)
Current Rating: Minimum 260 mA (substitute must support circuit current demands)
DC Resistance: Maximum 1.2 Ohm (acceptable variance within circuit design margins)
Core Material & Shielding: Ferrite unshielded alternatives acceptable where EMI requirements permit
Operating Temperature: Minimum -40°C to 105°C (acceptable for most applications; verify if extended low-temperature operation below -40°C is required)
Mounting Type: Surface Mount (exact match required)

The substitute parts NLV32T-3R3J-EF and NLV32T-3R3J-PF meet these substitution criteria with equivalent inductance, tolerance, package dimensions, and frequency characteristics. Both are manufactured by TDK Corporation with ferrite cores and unshielded construction.

Parameter Comparison

Parameter	ISC1210BN3R3J (Main)	NLV32T-3R3J-EF (Substitute)	NLV32T-3R3J-PF (Substitute)
Manufacturer	Vishay Dale	TDK Corporation	TDK Corporation
Inductance	3.3 µH	3.3 µH	3.3 µH
Tolerance	±5%	±5%	±5%
Current Rating (Amps)	270 mA	260 mA	260 mA
DC Resistance (Max)	1.1 Ohm	1.2 Ohm	1.2 Ohm
Core Type	Iron Powder	Ferrite	Ferrite
Shielding	Shielded	Unshielded	Unshielded
Package / Case	1210 (3225 Metric)	1210 (3225 Metric)	1210 (3225 Metric)
Size / Dimension	0.126" L x 0.098" W (3.20mm x 2.49mm)	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.126" L x 0.098" W (3.20mm x 2.50mm)
Height - Seated (Max)	0.095" (2.41mm)	0.094" (2.40mm)	0.094" (2.40mm)
Operating Temperature	-55°C to 125°C	-40°C to 105°C	-40°C to 105°C
Q @ 7.96 MHz	30	30	30
Self Resonant Frequency	60 MHz	60 MHz	60 MHz
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Not For New Designs
Packaging Format	Bulk	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

For Active Production Designs: NLV32T-3R3J-EF is the primary substitute. This part maintains active product status, achieves ROHS3 compliance, and is available in Tape & Reel packaging suitable for automated assembly. The ferrite core construction and unshielded design are functionally equivalent where EMI isolation is not a circuit requirement. Current rating of 260 mA is acceptable for applications operating at or below this threshold.

For Legacy or Existing Designs: ISC1210BN3R3J remains the specified component. The shielded iron powder core and extended operating temperature range (-55°C to 125°C) provide performance characteristics not replicated by the TDK alternatives.

Compliance Considerations: NLV32T-3R3J-EF and NLV32T-3R3J-PF both achieve ROHS3 compliance, whereas ISC1210BN3R3J is RoHS non-compliant. For applications requiring RoHS certification, substitution to either TDK part is necessary.

Temperature Range Limitation: Both TDK substitutes operate to -40°C minimum, compared to -55°C for the Vishay part. Applications requiring operation below -40°C must retain the ISC1210BN3R3J.

Packaging Format: NLV32T-3R3J-PF carries "Not For New Designs" status and should not be selected for new product development. This part is listed for reference only in legacy system support scenarios.

Frequently Asked Questions (FAQ)

Q: Can NLV32T-3R3J-EF replace ISC1210BN3R3J in all applications?

A: Substitution is valid where the following conditions are met: (1) circuit current does not exceed 260 mA; (2) EMI shielding is not required; (3) operating temperature remains above -40°C; (4) RoHS compliance is acceptable or required. If any condition is not met, the original ISC1210BN3R3J must be retained.

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

A: Both parts are electrically and mechanically identical. The primary difference is packaging format: NLV32T-3R3J-EF is supplied in Tape & Reel (TR) format for automated assembly, while NLV32T-3R3J-PF is supplied in Cut Tape (CT) & Digi-Reel® format. NLV32T-3R3J-PF carries "Not For New Designs" status and should not be selected for new product development.

Q: Why does the substitute have lower current rating (260 mA vs. 270 mA)?

A: The 10 mA difference reflects the ferrite core material used in the TDK design versus the iron powder core in the Vishay part. For applications operating at or below 260 mA, this difference is not functionally significant. Applications requiring the full 270 mA rating must use ISC1210BN3R3J.

Q: Are the physical dimensions identical?

A: Dimensions are functionally equivalent. Length and width are identical (3.20mm x 2.50mm). Height seated maximum differs by 0.01mm (2.41mm vs. 2.40mm), which is within standard PCB assembly tolerances and does not affect board layout or component placement.

Q: Does the unshielded design of the substitute affect circuit performance?

A: Unshielded construction increases susceptibility to external electromagnetic interference and may increase radiated emissions. Substitution is appropriate only where circuit design does not require shielding for EMI control. If the original shielded design was specified for EMI performance, the substitute may not be suitable.

Q: What is the impact of the narrower operating temperature range?

A: The substitute operates from -40°C to 105°C, compared to -55°C to 125°C for the original. For applications operating within the -40°C to 105°C window, performance is equivalent. Applications requiring operation below -40°C or above 105°C must use ISC1210BN3R3J.

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